51
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Xu D, Murakoshi N, Tajiri K, Duo F, Okabe Y, Murakata Y, Yuan Z, Li S, Aonuma K, Song Z, Shimoda Y, Mori H, Sato A, Nogami A, Aonuma K, Ieda M. Xanthine oxidase inhibitor febuxostat reduces atrial fibrillation susceptibility by inhibition of oxidized CaMKII in Dahl salt-sensitive rats. Clin Sci (Lond) 2021; 135:2409-2422. [PMID: 34386810 DOI: 10.1042/cs20210405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 08/06/2021] [Accepted: 08/13/2021] [Indexed: 11/17/2022]
Abstract
Oxidative stress could be a possible mechanism and a therapeutic target of atrial fibrillation (AF). However, the effects of the xanthine oxidase (XO) inhibition for AF remain to be fully elucidated. We investigated the effects of a novel XO inhibitor febuxostat on AF compared with allopurinol in hypertension rat model. Five-week-old Dahl salt-sensitive rats were fed either low-salt (LS) (0.3% NaCl) or high-salt (HS) (8% NaCl) diet. After 4 weeks of diet, HS diet rats were divided into three groups: orally administered to vehicle (HS-C), febuxostat (5 mg/kg/day) (HS-F), or allopurinol (50 mg/kg/day) (HS-A). After 4 weeks of treatment, systolic blood pressure (SBP) was significantly higher in HS-C than LS, and it was slightly but significantly decreased by treatment with each XO inhibitor. AF duration was significantly prolonged in HS-C compared with LS, and significantly suppressed in both HS-F and HS-A (LS; 5.8 ± 3.5 s, HS-C; 33.9 ± 23.7 s, HS-F; 15.0 ± 14.1 s, HS-A; 20.1 ± 11.9 s: P<0.05). Ca2+ spark frequency was obviously increased in HS-C rats and reduced in the XO inhibitor-treated rats, especially in HS-F group. Western blotting revealed that the atrial expression levels of Met281/282-oxidized Ca2+/Calmodulin-dependent kinase II (CaMKII) and Ser2814-phosphorylated ryanodine receptor 2 were significantly increased in HS-C, and those were suppressed in HS-F and HS-A. Decreased expression of gap junction protein connexin 40 in HS-C was partially restored by treatment with each XO inhibitor. In conclusion, XO inhibitor febuxostat, as well as allopurinol, could reduce hypertension-related increase in AF perpetuation by restoring Ca2+ handling and gap junction.
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Affiliation(s)
- DongZhu Xu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazuko Tajiri
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Feng Duo
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuta Okabe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiko Murakata
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Zixun Yuan
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Siqi Li
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazuhiro Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Zonghu Song
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuzuno Shimoda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Haruka Mori
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Akira Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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52
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Baba M, Yoshida K, Igawa O, Yamamoto M, Nogami A, Takeyasu N, Saitoh H. Upgrade of cardiac resynchronization therapy by utilizing additional His-bundle pacing in a patient with lamin A/C cardiomyopathy: an autopsy case report. Eur Heart J Case Rep 2021; 5:ytab356. [PMID: 34703980 PMCID: PMC8536863 DOI: 10.1093/ehjcr/ytab356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/06/2021] [Accepted: 08/24/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Masako Baba
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Kentaro Yoshida
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Osamu Igawa
- Department of Cardiology, Nippon Medical School Hospital, Tokyo, Japan
| | - Masayoshi Yamamoto
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Noriyuki Takeyasu
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
| | - Hitoaki Saitoh
- Department of Pathology, Ibaraki Prefectural Central Hospital, Kasama, Japan
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53
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Nakazawa N, Ishizu T, Sairenchi T, Yamagishi K, Murakoshi N, Nakagawa D, Nakatsukasa T, Kawamatsu N, Sato K, Yamamoto M, Machino-Otsuka T, Xu D, Irie F, Tomizawa T, Nogami A, Aonuma K, Iso H, Ieda M, Kawakami Y, Ota H. Right bundle branch block and risk of cardiovascular mortality: the Ibaraki Prefectural Health Study. Heart Vessels 2021; 37:609-618. [PMID: 34562143 DOI: 10.1007/s00380-021-01944-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
Historically, a right bundle branch block has been considered a benign finding in asymptomatic individuals. However, this conclusion is based on a few old studies with small sample sizes. We examined the association between a complete right bundle branch block (CRBBB) and subsequent cardiovascular mortality in the general population in Japan. In this large community-based cohort study, data of 90,022 individuals (mean age, 58.5 ± 10.2 years; 66.2% women) who participated in annual community-based health check-ups were assessed. Subjects were followed up from 1993 to the end of 2016. Cox proportional hazards' models and log-rank tests were used for the data analysis. CRBBB was documented in 1,344 participants (1.5%). Among all included participants, CRBBB was associated with an increased risk of cardiovascular mortality after adjustment for all potential confounders (hazard ratio [HR] 1.21; 95% confidence interval [CI] 1.06-1.38). The increased risk of cardiovascular mortality was particularly evident in women aged < 65 years (HR 2.00; 95% CI 1.34-2.98) and men aged ≥ 65 years (HR 1.28; 95% CI 1.06-1.55). CRBBB is associated with an increased risk of cardiovascular mortality in women aged < 65 years and men aged ≥ 65 years. Clinicians should be aware of the presence of CRBBB in young women and elderly men, even if they exhibit no symptoms.
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Affiliation(s)
- Naomi Nakazawa
- Department of Clinical Laboratory Medicine, University of Tsukuba, Tsukuba, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.,Ibaraki Health Plaza, Ibaraki Health Service Association, Mito, Japan
| | - Tomoko Ishizu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan. .,Ibaraki Health Plaza, Ibaraki Health Service Association, Mito, Japan.
| | - Toshimi Sairenchi
- Ibaraki Health Plaza, Ibaraki Health Service Association, Mito, Japan.,Center for Research Collaboration and Support, Comprehensive Research Facilities for Advanced Medical Science, Dokkyo Medical University, Mibu, Japan
| | - Kazumasa Yamagishi
- Department of Public Health Medicine, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Daishi Nakagawa
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Tomofumi Nakatsukasa
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Naoto Kawamatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Kimi Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Masayoshi Yamamoto
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Tomoko Machino-Otsuka
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - DongZhu Xu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Fujiko Irie
- Department of Health and Welfare, Ibaraki Prefectural Office, Mito, Japan
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Hiroyasu Iso
- Department of Social and Environmental Medicine, Osaka University, Osaka, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan
| | - Yasushi Kawakami
- Department of Clinical Laboratory Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hitoshi Ota
- Ibaraki Health Plaza, Ibaraki Health Service Association, Mito, Japan
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54
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Hanaki Y, Komatsu Y, Nogami A, Kowase S, Kurosaki K, Sekiguchi Y, Aonuma K, Ieda M. Combined endo- and epicardial pace-mapping to localize ventricular tachycardia isthmus in ischaemic and non-ischaemic cardiomyopathy. Europace 2021; 24:587-597. [PMID: 34543395 DOI: 10.1093/europace/euab245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/03/2021] [Indexed: 11/12/2022] Open
Abstract
AIMS A high-density pace-mapping can depict an abrupt transition in paced QRS morphology from a poor to excellent match, unmasking the critical component of ventricular tachycardia (VT) isthmus from the entrance to exit. We sought to assess pace-mapping at multiple sites within the endo- and epicardial scars to identify the VT isthmus in patients with ischaemic (ICM) and non-ischaemic cardiomyopathy (NICM). METHODS AND RESULTS Colour-coded maps correlating to the percentage matches between 12-lead electrocardiograms during VT and pace-mapping [referred to as correlation score maps (CSMs)] were analysed. We studied 115 CSMs (80 endo- and 35 epicardial CSMs) in 37 patients (17 ICM, 20 NICM). The CSM with an abrupt change (AC) in pacemap score (AC-type) on the endocardium was more frequently observed in ICM than in NICM [11/39 (28%) vs. 1/41 (2%); P = 0.001]. Among 35 CSMs that were analysed by the combined endo- and epicardial mapping, 10 (29%) CSMs exhibited non-AC-type on the endocardium; however, AC-type was present on the opposite epicardium. Although 24 (69%) CSMs did not show AC-type on both the endocardium and epicardium, 16 of them had either an excellent (>90%) or poor (<0%) correlation score on either side, associated with isthmus exit or entrance, respectively. However, the remaining eight CSMs had neither excellent nor poor scores. CONCLUSION The CSM may provide electrophysiological information to localize the endo- and epicardial VT isthmus. The absence of AC-type CSM on the endocardium, which is frequently observed in NICM, appears to indicate the sub-epicardial or intramural course of the critical isthmus.
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Affiliation(s)
- Yuichi Hanaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Shinya Kowase
- Department of Heart Rhythm management, Yokohama Rosai Hospital, Yokohama, Japan
| | - Kenji Kurosaki
- Department of Heart Rhythm management, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
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55
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Ishikawa T, Kimoto H, Mishima H, Yamagata K, Ogata S, Aizawa Y, Hayashi K, Morita H, Nakajima T, Nakano Y, Nagase S, Murakoshi N, Kowase S, Ohkubo K, Aiba T, Morimoto S, Ohno S, Kamakura S, Nogami A, Takagi M, Karakachoff M, Dina C, Schott JJ, Yoshiura KI, Horie M, Shimizu W, Nishimura K, Kusano K, Makita N. Functionally validated SCN5A variants allow interpretation of pathogenicity and prediction of lethal events in Brugada syndrome. Eur Heart J 2021; 42:2854-2863. [PMID: 34219138 DOI: 10.1093/eurheartj/ehab254] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/09/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023] Open
Abstract
AIMS The prognostic value of genetic variants for predicting lethal arrhythmic events (LAEs) in Brugada syndrome (BrS) remains controversial. We investigated whether the functional curation of SCN5A variations improves prognostic predictability. METHODS AND RESULTS Using a heterologous expression system and whole-cell patch clamping, we functionally characterized 22 variants of unknown significance (VUSs) among 55 SCN5A mutations previously curated using in silico prediction algorithms in the Japanese BrS registry (n = 415). According to the loss-of-function (LOF) properties, SCN5A mutation carriers (n = 60) were divided into two groups: LOF-SCN5A mutations and non-LOF SCN5A variations. Functionally proven LOF-SCN5A mutation carriers (n = 45) showed significantly severer electrocardiographic conduction abnormalities and worse prognosis associated with earlier manifestations of LAEs (7.9%/year) than in silico algorithm-predicted SCN5A carriers (5.1%/year) or all BrS probands (2.5%/year). Notably, non-LOF SCN5A variation carriers (n = 15) exhibited no LAEs during the follow-up period. Multivariate analysis demonstrated that only LOF-SCN5A mutations and a history of aborted cardiac arrest were significant predictors of LAEs. Gene-based association studies using whole-exome sequencing data on another independent SCN5A mutation-negative BrS cohort (n = 288) showed no significant enrichment of rare variants in 16 985 genes including 22 non-SCN5A BrS-associated genes as compared with controls (n = 372). Furthermore, rare variations of non-SCN5A BrS-associated genes did not affect LAE-free survival curves. CONCLUSION In vitro functional validation is key to classifying the pathogenicity of SCN5A VUSs and for risk stratification of genetic predictors of LAEs. Functionally proven LOF-SCN5A mutations are genetic burdens of sudden death in BrS, but evidence for other BrS-associated genes is elusive.
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Affiliation(s)
- Taisuke Ishikawa
- Omics Research Center, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Hiroki Kimoto
- Department of Molecular Physiology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 8528523, Japan
| | - Hiroyuki Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 8528523, Japan
| | - Kenichiro Yamagata
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Soshiro Ogata
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiovascular Medicine, International University of Health and Welfare, 4-3 Kozunomori, Narita 2860048, Japan
| | - Kenshi Hayashi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1 Takaramachi, Kanazawa 9208641, Japan
| | - Hiroshi Morita
- Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama 7008558, Japan
| | - Tadashi Nakajima
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, 3-39-22 Showamachi, Maebashi 3710034, Japan
| | - Yukiko Nakano
- Department of Cardiovascular Medicine, Hiroshima University, 1-2-3 Kasumi, Hiroshima 7348551, Japan
| | - Satoshi Nagase
- Department of Advanced Arrhythmia and Translational Medical Science, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 3058575, Japan
| | - Shinya Kowase
- Department of Heart Rhythm Management, Yokohama Rosai Hospital, 3211 Kozukue-Cho, Yokohama 2220036, Japan
| | - Kimie Ohkubo
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-kamimachi, Tokyo 1738610, Japan
| | - Takeshi Aiba
- Department of Clinical Laboratory, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Shimpei Morimoto
- Innovation Platform & Office for Precision Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 8528501, Japan
| | - Seiko Ohno
- Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Shiro Kamakura
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Akihiko Nogami
- Department of Cardiology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 3058575, Japan
| | - Masahiko Takagi
- Division of Cardiac Arrhythmia, Kansai Medical University, 10-15 Fumizonomachi, Moriguchi 5708507, Japan
| | - Matilde Karakachoff
- L'institut du Thorax, CHU Nantes, 1 Place Alexis-Ricordeau, Nantes 44007, France
| | - Christian Dina
- L'institut du Thorax, INSERM, CNRS, UNIV Nantes, 8 Quai Moncousu, Nantes 44007, France
| | - Jean-Jacques Schott
- L'institut du Thorax, INSERM, CNRS, UNIV Nantes, 8 Quai Moncousu, Nantes 44007, France
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 8528523, Japan
| | - Minoru Horie
- Center for Epidemiologic Research in Asia, Shiga University of Medical Science, Setatsukiwa-cho, Ohtsu 5202192, Japan
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Tokyo 1138603, Japan
| | - Kunihiro Nishimura
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
| | - Naomasa Makita
- Omics Research Center, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita 5648565, Japan
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56
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Nogami A, Kurita T, Abe H, Ando K, Ishikawa T, Imai K, Usui A, Okishige K, Kusano K, Kumagai K, Goya M, Kobayashi Y, Shimizu A, Shimizu W, Shoda M, Sumitomo N, Seo Y, Takahashi A, Tada H, Naito S, Nakazato Y, Nishimura T, Nitta T, Niwano S, Hagiwara N, Murakawa Y, Yamane T, Aiba T, Inoue K, Iwasaki Y, Inden Y, Uno K, Ogano M, Kimura M, Sakamoto SI, Sasaki S, Satomi K, Shiga T, Suzuki T, Sekiguchi Y, Soejima K, Takagi M, Chinushi M, Nishi N, Noda T, Hachiya H, Mitsuno M, Mitsuhashi T, Miyauchi Y, Miyazaki A, Morimoto T, Yamasaki H, Aizawa Y, Ohe T, Kimura T, Tanemoto K, Tsutsui H, Mitamura H. CORRIGENDUM: JCS/JHRS 2019 Guideline on Non-Pharmacotherapy of Cardiac Arrhythmias. Circ J 2021; 85:1692-1700. [PMID: 34433750 DOI: 10.1253/circj.cj-66-0196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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57
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Sakamoto N, Komatsu Y, Otsu K, Kamikokura Y, Hontani M, Sugiyama E, Minoshima A, Tanabe Y, Sekiguchi Y, Tanino M, Sato N, Kawamura Y, Nogami A, Aonuma K, Hasebe N. Imaging and Pathological Evaluation of Deep Intramural Ventricular Tachycardia After Combined Bipolar and Ethanol Ablation. JACC Clin Electrophysiol 2021; 6:1865-1866. [PMID: 33357588 DOI: 10.1016/j.jacep.2020.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Naka Sakamoto
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan.
| | - Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Keisuke Otsu
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Yuki Kamikokura
- Department of Diagnostic Pathology, Asahikawa Medical University Hospital, Asahikawa, Japan
| | - Misako Hontani
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Eitaro Sugiyama
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Akiho Minoshima
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Yasuko Tanabe
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Mishie Tanino
- Department of Diagnostic Pathology, Asahikawa Medical University Hospital, Asahikawa, Japan
| | - Nobuyuki Sato
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Yuichiro Kawamura
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Naoyuki Hasebe
- Department of Cardiology, Asahikawa Medical University, Asahikawa, Japan
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58
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Yamasaki H, Ando K, Ikeda T, Mitsuhashi T, Murohara T, Nishii N, Nogami A, Sakata Y, Shimizu W, Simon T, Beaudoint C, Kayser T, Kutyifa V, Aonuma K. Rationale and design of the HINODE study: Heart failure indication and sudden cardiac death prevention trial Japan. J Arrhythm 2021; 37:1031-1037. [PMID: 34386129 PMCID: PMC8339090 DOI: 10.1002/joa3.12577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/12/2021] [Accepted: 05/24/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Randomized trials in Western countries have provided evidence that prophylactic implantable cardioverter-defibrillator (ICD) therapy reduces mortality in heart failure (HF) patients with reduced left ventricular ejection fraction. However, the risk of life-threatening ventricular arrhythmias in Japanese HF patients sharing similar risk factors is still unknown. METHODS The Heart Failure Indication and Sudden Cardiac Death Prevention Trial Japan trial (NCT03185832) is a prospective, multicenter registry designed to collect data on ventricular arrhythmia, HF events, and mortality in Japanese HF patients. Japanese patients with HF and 2-5 predefined risk factors who were indicated for cardiac device implantation based on European Society of Cardiology guidelines were enrolled in four treatment arms: implantable cardioverter-defibrillator (ICD), cardiac resynchronization therapy defibrillator (CRT-D), HF pacing (PA; Pacemaker and cardiac resynchronization pacemaker), and nondevice (ND) cohorts and followed for a minimum of 12 months. Since it is anticipated that some baseline patient characteristics and risk factors will differ significantly from those reported in predominantly Western populations, event rates will be compared to a propensity-matched population from the MADIT RIT trial. Primary endpoints are composite rates of first appropriately treated ventricular arrhythmias (VA) or/and life-threatening VA symptoms for the ICD and CRT-D cohorts. For nondevice and PA cohorts, the primary outcome is all-cause mortality. CONCLUSIONS The Heart Failure Indication and Sudden Cardiac Death Prevention Trial Japan is a large prospective multicenter registry with defined device treatment cohorts and will provide data for risk stratification for cardiovascular events in Japanese HF patients.
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Affiliation(s)
- Hiro Yamasaki
- Department of CardiologyFaculty of MedicineUniversity of TsukubaIbarakiJapan
| | - Kenji Ando
- Department of CardiologyKokura Memorial HospitalFukuokaJapan
| | - Takanori Ikeda
- Department of Cardiovascular MedicineFaculty of MedicineToho UniversityTokyoJapan
| | | | - Toyoaki Murohara
- Department of CardiologyNagoya University Graduate School of MedicineAichiJapan
| | - Nobuhiro Nishii
- Department of Cardiovascular TherapeuticsOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Akihiko Nogami
- Department of CardiologyFaculty of MedicineUniversity of TsukubaIbarakiJapan
| | - Yasushi Sakata
- Department of Cardiovascular MedicineOsaka University Graduate School of MedicineOsakaJapan
| | - Wataru Shimizu
- Department of Cardiovascular MedicineNippon Medical SchoolTokyoJapan
| | - Torri Simon
- Department of BiostatisticsBoston ScientificSt PaulMNUSA
| | | | - Torsten Kayser
- Department Clinical ResearchBoston ScientificDiegemBelgium
| | | | - Kazutaka Aonuma
- Department of CardiologyFaculty of MedicineUniversity of TsukubaIbarakiJapan
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Nogami A, Kurita T, Abe H, Ando K, Ishikawa T, Imai K, Usui A, Okishige K, Kusano K, Kumagai K, Goya M, Kobayashi Y, Shimizu A, Shimizu W, Shoda M, Sumitomo N, Seo Y, Takahashi A, Tada H, Naito S, Nakazato Y, Nishimura T, Nitta T, Niwano S, Hagiwara N, Murakawa Y, Yamane T, Aiba T, Inoue K, Iwasaki Y, Inden Y, Uno K, Ogano M, Kimura M, Sakamoto S, Sasaki S, Satomi K, Shiga T, Suzuki T, Sekiguchi Y, Soejima K, Takagi M, Chinushi M, Nishi N, Noda T, Hachiya H, Mitsuno M, Mitsuhashi T, Miyauchi Y, Miyazaki A, Morimoto T, Yamasaki H, Aizawa Y, Ohe T, Kimura T, Tanemoto K, Tsutsui H, Mitamura H. JCS/JHRS 2019 guideline on non-pharmacotherapy of cardiac arrhythmias. J Arrhythm 2021; 37:709-870. [PMID: 34386109 PMCID: PMC8339126 DOI: 10.1002/joa3.12491] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Komatsu Y, Nogami A, Ieda M. Does Electrocardiographic Normalization Predict Successful Substrate Ablation in Brugada Syndrome? Circ J 2021; 85:1294-1295. [PMID: 33952836 DOI: 10.1253/circj.cj-21-0237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
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61
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Surget E, Cheniti G, Ramirez FD, Leenhardt A, Nogami A, Gandjbakhch E, Extramiana F, Hidden-Lucet F, Pillois X, Benoist D, Krisai P, Nakatani Y, Nakashima T, Takagi T, Kamakura T, André C, Welte N, Chauvel R, Tixier R, Duchateau J, Pambrun T, Derval N, Jaïs P, Sacher F, Bernus O, Hocini M, Haïssaguerre M. Sex differences in the origin of Purkinje ectopy-initiated idiopathic ventricular fibrillation. Heart Rhythm 2021; 18:1647-1654. [PMID: 34260987 DOI: 10.1016/j.hrthm.2021.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Purkinje ectopics (PurkEs) are major triggers of idiopathic ventricular fibrillation (VF). Identifying clinical factors associated with specific PurkE characteristics could yield insights into the mechanisms of Purkinje-mediated arrhythmogenicity. OBJECTIVE The purpose of this study was to examine the associations of clinical, environmental, and genetic factors with PurkE origin in patients with PurkE-initiated idiopathic VF. METHODS Consecutive patients with PurkE-initiated idiopathic VF from 4 arrhythmia referral centers were included. We evaluated demographic characteristics, medical history, clinical circumstances associated with index VF events, and electrophysiological characteristics of PurkEs. An electrophysiology study was performed in most patients to confirm the Purkinje origin. RESULTS Eighty-three patients were included (mean age 38 ± 14 years; 44 [53%] women), of whom 32 had a history of syncope. Forty-four patients had VF at rest. PurkEs originated from the right ventricle (RV) in 41 patients (49%), from the left ventricle (LV) in 36 (44%), and from both ventricles in 6 (7%). Seasonal and circadian distributions of VF episodes were similar according to PurkE origin. The clinical characteristics of patients with RV vs LV PurkE origins were similar, except for sex. RV PurkEs were more frequent in men than in women (76% vs 24%), whereas LV and biventricular PurkEs were more frequent in women (81% vs 19% and 83% vs 17%, respectively) (P < .0001). CONCLUSION PurkEs triggering idiopathic VF originate dominantly from the RV in men and from the LV or both ventricles in women, adding to other sex-related arrhythmias such as Brugada syndrome or long QT syndrome. Sex-based factors influencing Purkinje arrhythmogenicity warrant investigation.
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Affiliation(s)
- Elodie Surget
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France.
| | - Ghassen Cheniti
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - F Daniel Ramirez
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Antoine Leenhardt
- Université de Paris, CNMR, Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, INSERMU1166, Paris, France
| | - Akihiko Nogami
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Estelle Gandjbakhch
- Département de Cardiologie, Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Fabrice Extramiana
- Université de Paris, CNMR, Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, INSERMU1166, Paris, France
| | - Françoise Hidden-Lucet
- Département de Cardiologie, Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Xavier Pillois
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - David Benoist
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France
| | - Philipp Krisai
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Yosuke Nakatani
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Takashi Nakashima
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Takamitsu Takagi
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Tsukasa Kamakura
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Clémentine André
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Nicolas Welte
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Rémi Chauvel
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Romain Tixier
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Josselin Duchateau
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Thomas Pambrun
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Nicolas Derval
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Pierre Jaïs
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Frédéric Sacher
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Olivier Bernus
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France
| | - Mélèze Hocini
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
| | - Michel Haïssaguerre
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Foundation Bordeaux Université, Bordeaux, France; Electrophysiology and Ablation Unit, Bordeaux University Hospital (CHU), Pessac, France
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Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, Berruezo A, Callans DJ, Chung MK, Cuculich P, d'Avila A, Deal BJ, Della Bella P, Deneke T, Dickfeld TM, Hadid C, Haqqani HM, Kay GN, Latchamsetty R, Marchlinski F, Miller JM, Nogami A, Patel AR, Pathak RK, Saenz Morales LC, Santangeli P, Sapp JL, Sarkozy A, Soejima K, Stevenson WG, Tedrow UB, Tzou WS, Varma N, Zeppenfeld K. 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: executive summary. Europace 2021; 22:450-495. [PMID: 31995197 DOI: 10.1093/europace/euz332] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and treat them. The field of catheter ablation has progressed with the development of new methods and tools, and with the publication of large clinical trials. Therefore, global cardiac electrophysiology professional societies undertook to outline recommendations and best practices for these procedures in a document that will update and replace the 2009 EHRA/HRS Expert Consensus on Catheter Ablation of Ventricular Arrhythmias. An expert writing group, after reviewing and discussing the literature, including a systematic review and meta-analysis published in conjunction with this document, and drawing on their own experience, drafted and voted on recommendations and summarized current knowledge and practice in the field. Each recommendation is presented in knowledge byte format and is accompanied by supportive text and references. Further sections provide a practical synopsis of the various techniques and of the specific ventricular arrhythmia sites and substrates encountered in the electrophysiology lab. The purpose of this document is to help electrophysiologists around the world to appropriately select patients for catheter ablation, to perform procedures in a safe and efficacious manner, and to provide follow-up and adjunctive care in order to obtain the best possible outcomes for patients with ventricular arrhythmias.
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Affiliation(s)
| | | | | | - Petr Peichl
- Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Minglong Chen
- Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Narayanan Namboodiri
- Sree Chitra Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | | | | | | | - Elad Anter
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | | | | | | | - Andre d'Avila
- Hospital Cardiologico SOS Cardio, Florianopolis, Brazil
| | - Barbara J Deal
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | | | | | - Claudio Hadid
- Hospital General de Agudos Cosme Argerich, Buenos Aires, Argentina
| | - Haris M Haqqani
- University of Queensland, The Prince Charles Hospital, Chermside, Australia
| | - G Neal Kay
- University of Alabama at Birmingham, Birmingham, Alabama
| | | | | | - John M Miller
- Indiana University School of Medicine, Krannert Institute of Cardiology, Indianapolis, Indiana
| | | | - Akash R Patel
- University of California San Francisco Benioff Children's Hospital, San Francisco, California
| | | | | | | | - John L Sapp
- Queen Elizabeth II Health Sciences Centre, Halifax, Canada
| | - Andrea Sarkozy
- University Hospital Antwerp, University of Antwerp, Antwerp, Belgium
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Nonoguchi NM, Adachi M, Nogami A, Komatsu Y, Sato T, Ueda A, Ogawa K, Togashi I, Miwa Y, Hoshida K, Momose Y, Shinoda Y, Kowase S, Nakamura K, Kaneko S, Soejima K. Stellate Ganglion Phototherapy Using Low-Level Laser: A Novel Rescue Therapy for Patients With Refractory Ventricular Arrhythmias. JACC Clin Electrophysiol 2021; 7:1297-1308. [PMID: 34217659 DOI: 10.1016/j.jacep.2021.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES This study investigates the effect of stellate ganglion (SG) phototherapy in healthy participants and assesses its efficacy in suppressing electrical storm (ES) refractory to antiarrhythmic drugs and catheter ablation. BACKGROUND Modulation of the autonomic nervous system has been shown to be an effective adjunctive therapy for ES. METHODS Ten-minute SG phototherapy was performed twice weekly for 4 weeks in 20 healthy volunteers. To evaluate the acute and chronic effects of SG phototherapy, heart rate variability and serum concentrations of adrenaline, noradrenaline, and dopamine were obtained before phototherapy, immediately after the first phototherapy session, after 8 sessions of phototherapy, and 3 months after the first phototherapy session. In addition, the efficacy of SG phototherapy was evaluated in 11 patients with ES refractory to medication, sedation, and catheter ablation. RESULTS In healthy participants, serum adrenaline concentration significantly decreased after phototherapy, whereas low-frequency power/high-frequency power significantly decreased during phototherapy. Moreover, the effect on heart rate variability did not last beyond 3 months. In the clinical pilot study, 7 patients had a suppression of ES after SG phototherapy; however, without maintenance therapy, 2 patients had a recurrence of ventricular arrhythmias. Furthermore, it did not control ES in 4 patients. CONCLUSIONS SG phototherapy reduced sympathetic activity and may be a safe and effective adjunctive therapy to control ES in some patients, but its long-term efficacy remains unknown. Chronic phototherapy might help reduce ES recurrence.
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Affiliation(s)
| | | | - Akihiko Nogami
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Komatsu
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Cardiovascular Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Toshiaki Sato
- Division of Advanced Arrhythmia Management, Kyorin University School of Medicine, Mitaka, Japan
| | - Akiko Ueda
- Division of Advanced Arrhythmia Management, Kyorin University School of Medicine, Mitaka, Japan
| | - Kojiro Ogawa
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Ikuko Togashi
- Division of Advanced Arrhythmia Management, Kyorin University School of Medicine, Mitaka, Japan
| | - Yosuke Miwa
- Department of Cardiovascular Medicine, Kyorin University Hospital, Mitaka, Japan
| | - Kyoko Hoshida
- Department of Cardiovascular Medicine, Kyorin University Hospital, Mitaka, Japan
| | - Yuichi Momose
- Department of Cardiovascular Medicine, Kyorin University Hospital, Mitaka, Japan
| | - Yasutoshi Shinoda
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shinya Kowase
- Department of Cardiovascular Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Keijiro Nakamura
- Department of Cardiology, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Shinji Kaneko
- Department of Cardiology, Toyota Kosei Hospital, Toyota, Japan
| | - Kyoko Soejima
- Department of Cardiovascular Medicine, Kyorin University Hospital, Mitaka, Japan.
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Shinoda Y, Sato A, Adach T, Nishi I, Nogami A, Aonuma K, Ieda M. Early clinical experience of radiofrequency catheter ablation using an audiovisual telesupport system. Heart Rhythm 2021; 17:870-875. [PMID: 32354452 DOI: 10.1016/j.hrthm.2020.01.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/13/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND An audiovisual telesupport system that enables real-time audiovisual communications between 2 long-distance hospitals is one method of telemedicine. The usefulness and safety of radiofrequency catheter ablation (RFCA) using an audiovisual telesupport system has not been well established. OBJECTIVE The purpose of this study was to evaluate the effectiveness and safety of RFCA using an audiovisual telesupport system. METHODS An audiovisual telesupport system using a strictly secured virtual network was established between Kamisu Saiseikai Hospital (operator with 10 years' experience and 800 procedures) and the University of Tsukuba (advisor with >20 years' experience and 8000 procedures). We evaluated 19 initial consecutive patients who underwent RFCA using this system for tachyarrhythmia: 10 with atrial fibrillation (AF), 5 with paroxysmal supraventricular tachycardia (PSVT), 3 with premature ventricular contraction (PVC), and 1 with atrial flutter. Electrophysiological and procedural characteristics were retrospectively assessed. RESULTS Acute success was achieved in all 19 patients without any major complications, with the advisor's audiovisual assistance. Mean procedure time and fluoroscopic time were 161 ± 44 minutes and 24 ± 14 minutes for AF, 110 ± 17 minutes and 28 ± 8 minutes for PVC, and 132 ± 19 minutes and 32 ± 2 minutes for PSVT, respectively. There was no recurrence of clinical arrhythmia in 17 of the 19 patients (89%) during 13 ± 9 month follow-up. CONCLUSION An audiovisual telesupport system for RFCA is a useful and safe method that enabled the electrophysiologist with limited human resources to make an optimal decision regarding procedural strategy and endpoint with the remote advisor's audiovisual assistance.
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Affiliation(s)
- Yasutoshi Shinoda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Akira Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
| | - Toru Adach
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Isao Nishi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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65
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Nogami A, Kurita T, Abe H, Ando K, Ishikawa T, Imai K, Usui A, Okishige K, Kusano K, Kumagai K, Goya M, Kobayashi Y, Shimizu A, Shimizu W, Shoda M, Sumitomo N, Seo Y, Takahashi A, Tada H, Naito S, Nakazato Y, Nishimura T, Nitta T, Niwano S, Hagiwara N, Murakawa Y, Yamane T, Aiba T, Inoue K, Iwasaki Y, Inden Y, Uno K, Ogano M, Kimura M, Sakamoto SI, Sasaki S, Satomi K, Shiga T, Suzuki T, Sekiguchi Y, Soejima K, Takagi M, Chinushi M, Nishi N, Noda T, Hachiya H, Mitsuno M, Mitsuhashi T, Miyauchi Y, Miyazaki A, Morimoto T, Yamasaki H, Aizawa Y, Ohe T, Kimura T, Tanemoto K, Tsutsui H, Mitamura H. JCS/JHRS 2019 Guideline on Non-Pharmacotherapy of Cardiac Arrhythmias. Circ J 2021; 85:1104-1244. [PMID: 34078838 DOI: 10.1253/circj.cj-20-0637] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | - Haruhiko Abe
- Department of Heart Rhythm Management, University of Occupational and Environmental Health, Japan
| | - Kenji Ando
- Department of Cardiology, Kokura Memorial Hospital
| | - Toshiyuki Ishikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University
| | - Katsuhiko Imai
- Department of Cardiovascular Surgery, Kure Medical Center and Chugoku Cancer Center
| | - Akihiko Usui
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine
| | - Kaoru Okishige
- Department of Cardiology, Yokohama City Minato Red Cross Hospital
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | | | - Masahiko Goya
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University
| | | | | | - Wataru Shimizu
- Department of Cardiovascular Medicine, Graduate School of Medicine, Nippon Medical School
| | - Morio Shoda
- Department of Cardiology, Tokyo Women's Medical University
| | - Naokata Sumitomo
- Department of Pediatric Cardiology, Saitama Medical University International Medical Center
| | - Yoshihiro Seo
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | - Hiroshi Tada
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, University of Fukui
| | | | - Yuji Nakazato
- Department of Cardiovascular Medicine, Juntendo University Urayasu Hospital
| | - Takashi Nishimura
- Department of Cardiac Surgery, Tokyo Metropolitan Geriatric Hospital
| | - Takashi Nitta
- Department of Cardiovascular Surgery, Nippon Medical School
| | - Shinichi Niwano
- Department of Cardiovascular Medicine, Kitasato University School of Medicine
| | | | - Yuji Murakawa
- Fourth Department of Internal Medicine, Teikyo University Hospital Mizonokuchi
| | - Teiichi Yamane
- Department of Cardiology, Jikei University School of Medicine
| | - Takeshi Aiba
- Division of Arrhythmia, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Koichi Inoue
- Division of Arrhythmia, Cardiovascular Center, Sakurabashi Watanabe Hospital
| | - Yuki Iwasaki
- Department of Cardiovascular Medicine, Graduate School of Medicine, Nippon Medical School
| | - Yasuya Inden
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Kikuya Uno
- Arrhythmia Center, Chiba Nishi General Hospital
| | - Michio Ogano
- Department of Cardiovascular Medicine, Shizuoka Medical Center
| | - Masaomi Kimura
- Advanced Management of Cardiac Arrhythmias, Hirosaki University Graduate School of Medicine
| | | | - Shingo Sasaki
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine
| | | | - Tsuyoshi Shiga
- Department of Cardiology, Tokyo Women's Medical University
| | - Tsugutoshi Suzuki
- Departments of Pediatric Electrophysiology, Osaka City General Hospital
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Kyoko Soejima
- Arrhythmia Center, Second Department of Internal Medicine, Kyorin University Hospital
| | - Masahiko Takagi
- Division of Cardiac Arrhythmia, Department of Internal Medicine II, Kansai Medical University
| | - Masaomi Chinushi
- School of Health Sciences, Faculty of Medicine, Niigata University
| | - Nobuhiro Nishi
- Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takashi Noda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Hitoshi Hachiya
- Department of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital
| | | | | | - Yasushi Miyauchi
- Department of Cardiovascular Medicine, Nippon Medical School Chiba-Hokusoh Hospital
| | - Aya Miyazaki
- Department of Pediatric Cardiology, Congenital Heart Disease Center, Tenri Hospital
| | - Tomoshige Morimoto
- Department of Thoracic and Cardiovascular Surgery, Osaka Medical College
| | - Hiro Yamasaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | | | - Takeshi Kimura
- Department of Cardiology, Graduate School of Medicine and Faculty of Medicine, Kyoto University
| | - Kazuo Tanemoto
- Department of Cardiovascular Surgery, Kawasaki Medical School
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Phanthawimol W, Nogami A, Haruna T, Morishima I, Hasebe H, Mizutani Y, Naeemah QJ, Shimoo S, Hattori M, Ichihara N, Komatsu Y, Kuroki K, Yamasaki H, Igarashi M, Aonuma K, Ieda M. Reverse-Type Left Posterior Fascicular Ventricular Tachycardia: A New Electrocardiographic Entity. JACC Clin Electrophysiol 2021; 7:843-854. [PMID: 33640356 DOI: 10.1016/j.jacep.2020.11.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVES This study sought to demonstrate a new type of verapamil-sensitive fascicular ventricular tachycardia (VT) with a reverse circuit. BACKGROUND Left posterior fascicular ventricular tachycardia (LPFVT) is the most common form of verapamil-sensitive fascicular VT. Reverse-type LPFVT has not been reported. METHODS We searched for a reverse-type LPFVT among 242 patients with verapamil-sensitive VT from February 2006 to September 2019. RESULTS Three patients had a reverse-type LPFVT (cycle lengths: 340, 360, and 340 ms). QRS configuration during VT was narrow (140, 150, and 140 ms) and exhibited rSr' morphology in V1 with an early precordial transition and inferior axis. Two of 3 patients had common-type LPFVT. During reverse-type LPFVT, the earliest ventricular activation was the left superior middle septum. Fragmented Purkinje potentials (P1) buried within the local ventricular electrogram were recorded with an activation sequence from the apex to the base and were linked to the subsequent left ventricular septal activation. After radiofrequency catheter ablation at P1 during LPFVT, the reverse-type LPFVT also became noninducible. In 1 patient with only the reverse-type LPFVT, radiofrequency catheter ablation at the earliest LV activation site suppressed VT. These findings suggest that this new type of verapamil-sensitive fascicular VT shares a re-entrant circuit with a reverse direction of common LPFVT with an intramural exit site at the superior middle septum. CONCLUSIONS Reverse-type LPFVT can occur. If common LPFVT exists, diastolic P1 during LPFVT can be a common target of ablation. If only reverse-LPFVT is inducible, the earliest ventricular activation site can be a target.
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Affiliation(s)
- Wipat Phanthawimol
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
| | | | - Itsuro Morishima
- Department of Cardiology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Hideyuki Hasebe
- Division of Arrhythmology, Shizuoka Saiseikai General Hospital, Shizuoka, Japan
| | - Yoshiaki Mizutani
- Department of Cardiology, Yokkaichi Municipal Hospital, Yokkaichi, Japan
| | - Qasim J Naeemah
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Satoshi Shimoo
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masayuki Hattori
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Noboru Ichihara
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kenji Kuroki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Miyako Igarashi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Yamagishi M, Tamaki N, Akasaka T, Ikeda T, Ueshima K, Uemura S, Otsuji Y, Kihara Y, Kimura K, Kimura T, Kusama Y, Kumita S, Sakuma H, Jinzaki M, Daida H, Takeishi Y, Tada H, Chikamori T, Tsujita K, Teraoka K, Nakajima K, Nakata T, Nakatani S, Nogami A, Node K, Nohara A, Hirayama A, Funabashi N, Miura M, Mochizuki T, Yokoi H, Yoshioka K, Watanabe M, Asanuma T, Ishikawa Y, Ohara T, Kaikita K, Kasai T, Kato E, Kamiyama H, Kawashiri M, Kiso K, Kitagawa K, Kido T, Kinoshita T, Kiriyama T, Kume T, Kurata A, Kurisu S, Kosuge M, Kodani E, Sato A, Shiono Y, Shiomi H, Taki J, Takeuchi M, Tanaka A, Tanaka N, Tanaka R, Nakahashi T, Nakahara T, Nomura A, Hashimoto A, Hayashi K, Higashi M, Hiro T, Fukamachi D, Matsuo H, Matsumoto N, Miyauchi K, Miyagawa M, Yamada Y, Yoshinaga K, Wada H, Watanabe T, Ozaki Y, Kohsaka S, Shimizu W, Yasuda S, Yoshino H. JCS 2018 Guideline on Diagnosis of Chronic Coronary Heart Diseases. Circ J 2021; 85:402-572. [PMID: 33597320 DOI: 10.1253/circj.cj-19-1131] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Nagara Tamaki
- Department of Radiology, Kyoto Prefectural University of Medicine Graduate School
| | - Takashi Akasaka
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Graduate School
| | - Kenji Ueshima
- Center for Accessing Early Promising Treatment, Kyoto University Hospital
| | - Shiro Uemura
- Department of Cardiology, Kawasaki Medical School
| | - Yutaka Otsuji
- Second Department of Internal Medicine, University of Occupational and Environmental Health, Japan
| | - Yasuki Kihara
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences
| | - Kazuo Kimura
- Division of Cardiology, Yokohama City University Medical Center
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School
| | | | | | - Hajime Sakuma
- Department of Radiology, Mie University Graduate School
| | | | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School
| | | | - Hiroshi Tada
- Department of Cardiovascular Medicine, University of Fukui
| | | | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
| | | | - Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa Universtiy
| | | | - Satoshi Nakatani
- Division of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School of Medicine
| | | | - Koichi Node
- Department of Cardiovascular Medicine, Saga University
| | - Atsushi Nohara
- Division of Clinical Genetics, Ishikawa Prefectural Central Hospital
| | | | | | - Masaru Miura
- Department of Cardiology, Tokyo Metropolitan Children's Medical Center
| | | | | | | | - Masafumi Watanabe
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University
| | - Toshihiko Asanuma
- Division of Functional Diagnostics, Department of Health Sciences, Osaka University Graduate School
| | - Yuichi Ishikawa
- Department of Pediatric Cardiology, Fukuoka Children's Hospital
| | - Takahiro Ohara
- Division of Community Medicine, Tohoku Medical and Pharmaceutical University
| | - Koichi Kaikita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University
| | - Tokuo Kasai
- Department of Cardiology, Uonuma Kinen Hospital
| | - Eri Kato
- Department of Cardiovascular Medicine, Department of Clinical Laboratory, Kyoto University Hospital
| | | | - Masaaki Kawashiri
- Department of Cardiovascular and Internal Medicine, Kanazawa University
| | - Keisuke Kiso
- Department of Diagnostic Radiology, Tohoku University Hospital
| | - Kakuya Kitagawa
- Department of Advanced Diagnostic Imaging, Mie University Graduate School
| | - Teruhito Kido
- Department of Radiology, Ehime University Graduate School
| | | | | | | | - Akira Kurata
- Department of Radiology, Ehime University Graduate School
| | - Satoshi Kurisu
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences
| | - Masami Kosuge
- Division of Cardiology, Yokohama City University Medical Center
| | - Eitaro Kodani
- Department of Internal Medicine and Cardiology, Nippon Medical School Tama Nagayama Hospital
| | - Akira Sato
- Department of Cardiology, University of Tsukuba
| | - Yasutsugu Shiono
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Hiroki Shiomi
- Department of Cardiovascular Medicine, Kyoto University Graduate School
| | - Junichi Taki
- Department of Nuclear Medicine, Kanazawa University
| | - Masaaki Takeuchi
- Department of Laboratory and Transfusion Medicine, Hospital of the University of Occupational and Environmental Health, Japan
| | | | - Nobuhiro Tanaka
- Department of Cardiology, Tokyo Medical University Hachioji Medical Center
| | - Ryoichi Tanaka
- Department of Reconstructive Oral and Maxillofacial Surgery, Iwate Medical University
| | | | | | - Akihiro Nomura
- Innovative Clinical Research Center, Kanazawa University Hospital
| | - Akiyoshi Hashimoto
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University
| | - Kenshi Hayashi
- Department of Cardiovascular Medicine, Kanazawa University Hospital
| | - Masahiro Higashi
- Department of Radiology, National Hospital Organization Osaka National Hospital
| | - Takafumi Hiro
- Division of Cardiology, Department of Medicine, Nihon University
| | | | - Hitoshi Matsuo
- Department of Cardiovascular Medicine, Gifu Heart Center
| | - Naoya Matsumoto
- Division of Cardiology, Department of Medicine, Nihon University
| | | | | | | | - Keiichiro Yoshinaga
- Department of Diagnostic and Therapeutic Nuclear Medicine, Molecular Imaging at the National Institute of Radiological Sciences
| | - Hideki Wada
- Department of Cardiology, Juntendo University Shizuoka Hospital
| | - Tetsu Watanabe
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University
| | - Yukio Ozaki
- Department of Cardiology, Fujita Medical University
| | - Shun Kohsaka
- Department of Cardiology, Keio University School of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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Niwano S, Abe H, Takagi M, Sekiguchi Y, Iwasaki Y, Kato R, Kondo Y, Kurita T, Nitta T, Nogami A. Reassessment of practical usage and accumulation of real-world data of wearable cardioverter defibrillator (WCD) in Japan-Design paper for J-WCDR study. J Arrhythm 2021; 37:226-230. [PMID: 33664907 PMCID: PMC7896442 DOI: 10.1002/joa3.12456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/04/2020] [Accepted: 10/19/2020] [Indexed: 12/05/2022] Open
Abstract
Although implantable cardioverter defibrillators (ICDs) are a powerful preventive therapy for cardiac sudden death, there are some populations in whom ICDs cannot be applied because of a lack of a definitive indication (grey-zone patients), such as in patients during the acute phase of cardiac injury with a susceptible risk for lethal arrhythmias. In such patients, wearable cardioverter defibrillators (WCDs) provide safer bridging period during the acute phase until the final decision-making for the ICD use and it may eliminate any inappropriate overuse of ICDs in the subacute phase. The JCS/JHRS practical guidelines provide the criteria for WCD use in Japan. Nevertheless, the evidence for that is totally limited in Japan and is dependent on the accumulation of actual real-world data from other countries in order to be able to discuss the appropriate criteria for WCD use. This study will be conducted retrospectively and/or prospectively, and is an observational and multicenter study among Japanese institutions (J-WCDR, Japan WCD Registry). This will provide evidence for WCD use in our own country and contribute to upcoming updates for the future guideline revisions.
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Affiliation(s)
- Shinichi Niwano
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaJapan
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthKitakyushuJapan
| | - Masahiko Takagi
- Department of Medicine IIKansai Medical UniversityOsakaJapan
| | - Yukio Sekiguchi
- Division of CardiologyKasumigaura Medical CenterTsuchiuraJapan
| | - Yu‐Ki Iwasaki
- Department of Cardiovascular SurgeryNippon Medical SchoolTokyoJapan
| | - Ritsushi Kato
- The Department of CardiologySaitama Medical UniversityInternational Medical CenterSaitamaJapan
| | - Yusuke Kondo
- Department of Cardiovascular MedicineChiba University Graduate School of MedicineChibaJapan
| | - Takashi Kurita
- Division of Cardiovascular CenterKindai UniversityOsaka‐SayamaJapan
| | - Takashi Nitta
- Department of Cardiovascular SurgeryNippon Medical SchoolTokyoJapan
| | - Akihiko Nogami
- Department of CardiologyUniversity of TsukubaTsukubaJapan
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Arimoto T, Watanabe E, Kohno R, Shimeno K, Kikuchi K, Doi A, Inoue K, Nitta T, Nogami A, Abe H, Okumura K. Impact of a poor functional capacity on the clinical outcomes in patients with a pacemaker implantation -Results from the Japanese Heart Rhythm Society Registry. J Arrhythm 2021; 37:182-188. [PMID: 33664901 PMCID: PMC7896460 DOI: 10.1002/joa3.12459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/13/2020] [Accepted: 10/28/2020] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Functional capacity (FC) correlates with mortality in various cardiovascular diseases. The aim of this study was to examine whether cardiac pacemaker implantations improve the FC and affect the prognosis. METHODS AND RESULTS We prospectively enrolled 621 de novo pacemaker recipients (age 76 ± 9 years, 50.7% male). The FC was assessed by metabolic equivalents (METs) during the implantation and periodically thereafter. The patients were a priori classified into poor FC (<2 METs, n = 40), moderate FC (2 ≤ METs < 4, n = 239), and good FC (≥4 METs, n = 342). Three months after the pacemaker implantation, poor FC or moderate FC patients improved to a good FC by 43%. The distribution of the three FCs remained at those levels until after 1 year of follow-up (P = .18). During a median follow-up of 2.4 years, 71 patients (11%) had cardiovascular hospitalizations and 35 (5.6%) all-cause death. A multivariate Cox analysis revealed that a poor FC at baseline was an independent predictor of both cardiovascular hospitalization (hazard ratio [HR] 2.494, P = .012) and all-cause death (HR 3.338, P = .016). One year after the pacemaker implantation, the eight who remained with a poor FC had a high mortality rate of 37.5% (P < .01). CONCLUSION Approximately half of the poor or moderate FC patients improved to good FC 3 months after the pacemaker implantation. The baseline FC predicted the prognosis, and patients with an improved FC after the pacemaker implantation had a better prognosis.
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Affiliation(s)
- Takanori Arimoto
- Department of CardiologyYamagata University School of MedicineYamagataJapan
| | - Eiichi Watanabe
- Department of CardiologyFujita Health University Bantane HospitalNagoyaJapan
| | - Ritsuko Kohno
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthKitakyushuJapan
| | - Kenji Shimeno
- Department of CardiologyOsaka City General HospitalOsakaJapan
| | - Kan Kikuchi
- Division of CardiologyJapan Community Healthcare Organization Kyushu HospitalKitakyushuJapan
| | - Atsushi Doi
- Department of Cardiovascular MedicineOsaka City University Graduate School of MedicineOsakaJapan
| | - Kanki Inoue
- Division of CardiologySakakibara Heart InstituteTokyoJapan
| | - Takashi Nitta
- Cardiovascular SurgeryNippon Medical SchoolTokyoJapan
| | - Akihiko Nogami
- Department of CardiologyFaculty of MedicineUniversity of TsukubaTsukubaJapan
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthKitakyushuJapan
| | - Ken Okumura
- Division of CardiologySaiseikai Kumamoto HospitalKumamotoJapan
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Yokoshiki H, Shimizu A, Mitsuhashi T, Ishibashi K, Kabutoya T, Yoshiga Y, Kohno R, Abe H, Nogami A. Current status and role of programmed ventricular stimulation in patients without sustained ventricular arrhythmias and reduced ejection fraction: Analysis of the Japan cardiac device treatment registry database. J Arrhythm 2021; 37:148-156. [PMID: 33664897 PMCID: PMC7896472 DOI: 10.1002/joa3.12468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/26/2020] [Accepted: 11/05/2020] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The aim of this study was to clarify the current status and role of programmed ventricular stimulation in patients without sustained ventricular arrhythmias and reduced left ventricular ejection fraction (LVEF). METHODS The follow-up data of the Japan cardiac device treatment registry (JCDTR) was analyzed in 746 patients with LVEF ≦35% and no prior history of sustained ventricular arrhythmias who underwent de novo implantable cardioverter-defibrillator (ICD) or cardiac resynchronization therapy with a defibrillator (CRT-D) implantation between January 2011 and August 2015. RESULTS Electrophysiological study (EPS) with programmed ventricular stimulation had been performed before the device implant in 118 patients (15.8%, EPS group). During the mean follow-up of 21 ± 12 months, the rate of freedom from any death and appropriate defibrillator therapy was not significantly different between EPS group (n = 118) and No EPS group (n = 628). NYHA class II-IV, and QRS duration were negatively associated with performing EPS. Among patients in the EPS group, the rate of ventricular tachycardia (VT)/ventricular fibrillation (VF) induction was 48%. The inducibility was not a predictor of appropriate defibrillator therapy, whereas BNP ≧535 pg/mL and no use of amiodarone were significantly associated with a risk of the appropriate therapy. CONCLUSION EPS for induction of VT/VF had been performed in about 16% of patients with reduced LVEF before primary prevention ICD/CRT-D implantation. Elevated BNP levels and no use of amiodarone, but not inducibility of VT/VF, appeared to be associated with appropriate defibrillator therapy in these populations.
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Affiliation(s)
- Hisashi Yokoshiki
- Department of Cardiovascular MedicineSapporo City General HospitalSapporoJapan
| | | | - Takeshi Mitsuhashi
- Department of Cardiovascular MedicineHoshi General HospitalKoriyamaJapan
| | - Kohei Ishibashi
- Department of Cardiovascular MedicineNational Cerebral and Cardiovascular CenterSuitaJapan
| | - Tomoyuki Kabutoya
- Division of Cardiovascular MedicineDepartment of MedicineJichi Medical University School of MedicineShimotsukeJapan
| | - Yasuhiro Yoshiga
- Division of CardiologyDepartment of Medicine and Clinical ScienceYamaguchi University Graduate School of MedicineUbeJapan
| | - Ritsuko Kohno
- Department of Heart Rhythm ManagementUniversity of Occupational & Environmental HealthKitakyushuJapan
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational & Environmental HealthKitakyushuJapan
| | - Akihiko Nogami
- Cardiovascular DivisionFaculty of MedicineUniversity of TsukubaTsukubaJapan
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71
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Kimata A, Nogami A, Yamasaki H, Ohigashi T, Gosho M, Igarashi M, Sekiguchi Y, Ieda M, Calkins H, Aonuma K. Optimal interruption time of dabigatran oral administration to ablation (O-A time) in patients with atrial fibrillation: Integrated analysis of 2 randomized controlled clinical trials. J Cardiol 2021; 77:652-659. [PMID: 33509678 DOI: 10.1016/j.jjcc.2020.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/23/2020] [Accepted: 12/07/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND RE-CIRCUIT (NCT02348723) and ABRIDGE-J (UMIN000013129) are recently published randomized clinical trials showing that anticoagulation therapy with dabigatran during the periprocedural period of catheter ablation (CA) for atrial fibrillation (AF) was associated with fewer complications. However, the dabigatran administration protocols were different (uninterrupted in RE-CIRCUIT and minimally interrupted in ABRIDGE-J). The aim of this present study was to clarify the optimal interruption time of dabigatran Oral administration to Ablation (O-A time). METHODS We conducted an integrated analysis of the 2 prospective trials. The endpoint of the study was the incidence of major bleeding events during and up to 8 weeks after CA across participants with different O-A times. RESULTS The 535 patients in the dabigatran groups of the 2 trials were divided into 3 groups based on their O-A times (<8 h, n = 258; 8-24 h, n = 191; >24 h, n = 86). Major bleeding events occurred in 5 patients (1.9%) in the <8 h group, and 3 (3.5%) in the >24 h group; however, no major bleeding events occurred in the 8-24 h group (3 group-comparison, p = 0.026). No thromboembolic complication was observed in any of the 3 O-A time groups. CONCLUSION In patients undergoing CA for AF using dabigatran as a periprocedural anticoagulant, an O-A time of 8-24 h was associated with no bleeding complications. These data suggest that an O-A time of 8-24 h may be an appropriate option, especially in a low thromboembolic-risk patient.
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Affiliation(s)
- Akira Kimata
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tomohiro Ohigashi
- Department of Biostatistics, Tsukuba Clinical Research & Development Organization, University of Tsukuba, Tsukuba, Japan
| | - Masahiko Gosho
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Miyako Igarashi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hugh Calkins
- Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
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Baba M, Yoshida K, Hanaki Y, Yamamoto M, Shinoda Y, Takeyasu N, Nogami A. Upgrade of cardiac resynchronization therapy by utilizing additional His-bundle pacing in patients with inotrope-dependent end-stage heart failure: a case series. Eur Heart J Case Rep 2021; 4:1-9. [PMID: 33447714 PMCID: PMC7793217 DOI: 10.1093/ehjcr/ytaa303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/30/2019] [Accepted: 08/11/2020] [Indexed: 11/13/2022]
Abstract
Background His-bundle pacing (HBP) alone may become an alternative to conventional cardiac resynchronization therapy (CRT) utilizing right ventricular apical (RVA) and left ventricular (LV) pacing (BiVRVA+LV) in selected patients, but the effects of CRT utilizing HBP and LV pacing (BiVHB+LV) on cardiac resynchronization and heart failure (HF) are unclear. Case summary We presented two patients with inotrope-dependent end-stage HF in whom the upgrade from conventional BiVRVA+LV to BiVHB+LV pacing by the addition of a lead for HBP improved their HF status. Patient 1 was a 32-year-old man with lamin A/C cardiomyopathy, atrial fibrillation, and complete atrioventricular (AV) block. Patient 2 was a 70-year-old man with ischaemic cardiomyopathy complicated by AV block and worsening of HF resulting from ablation for ventricular tachycardia storm. The HF status of both patients improved dramatically following the upgrade from BiVRVA+LV to BiVHB+LV pacing. Discussion End-stage HF patients suffer from diffuse intraventricular conduction defect not only in the LV but also in the right ventricle (RV). The resulting dyssynchrony may not be sufficiently corrected by conventional BiVRVA+LV pacing or HBP alone. Right ventricular apical pacing itself may also impair RV synchrony. An upgrade to BiVHB+LV pacing could be beneficial in patients who become non-responsive to conventional BiV pacing as the His–Purkinje conduction defect progresses.
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Affiliation(s)
- Masako Baba
- Department of Cardiology, Ibaraki Prefectural Central Hospital, 6528 Koibuchi, Kasama, Ibaraki 309-1793, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Kentaro Yoshida
- Department of Cardiology, Ibaraki Prefectural Central Hospital, 6528 Koibuchi, Kasama, Ibaraki 309-1793, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuichi Hanaki
- Department of Cardiology, Ibaraki Prefectural Central Hospital, 6528 Koibuchi, Kasama, Ibaraki 309-1793, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Masayoshi Yamamoto
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yasutoshi Shinoda
- Department of Cardiology, Ibaraki Prefectural Central Hospital, 6528 Koibuchi, Kasama, Ibaraki 309-1793, Japan.,Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Noriyuki Takeyasu
- Department of Cardiology, Ibaraki Prefectural Central Hospital, 6528 Koibuchi, Kasama, Ibaraki 309-1793, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Affiliation(s)
- Tomoaki Hasegawa
- Department of Cardiology, Hitachi General Hospital, Hitachi, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Nagashima K, Kaneko Y, Maruyama M, Nogami A, Kowase S, Mori H, Sumitomo N, Fukamizu S, Hojo R, Kitamura T, Soejima K, Ueda A, Otsuka T, Takami M, Tanimoto K, Asakawa T, Kumagai K, Tamura S, Hasegawa H, Ogura K, Kawamura M, Munetsugu Y, Shoda M, Higuchi S, Kanazawa H, Kusa S, Mizukami A, Miyazaki S, Wakamatsu Y, Okumura Y. Novel Diagnostic Observations of Nodoventricular/Nodofascicular Pathway-Related Orthodromic Reciprocating Tachycardia Differentiating From Atrioventricular Nodal Re-Entrant Tachycardia. JACC Clin Electrophysiol 2020; 6:1797-1807. [PMID: 33357576 DOI: 10.1016/j.jacep.2020.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/29/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES This study sought to assess the performance of current diagnostic criteria and identify additional electrophysiological features differentiating orthodromic reciprocating tachycardia (ORT) with a concealed nodoventricular/nodofascicular (NV/NF) pathway from atrioventricular nodal re-entrant tachycardia (AVNRT). BACKGROUND Diagnosing sustained supraventricular tachycardia (SVT) despite the occurrence of ventriculoatrial block (VAB) is challenging. METHODS We analyzed electrograms of 25 sustained SVTs (9 NV/NF-ORTs [n = 7/2] and 16 AVNRTs) with VAB and 91 AVNRTs without VAB (for reference). RESULTS More than 1 SVT, each with a different ventriculoatrial interval, was commonly induced in AVNRT cases (75%) but not in NV/NF-ORT cases (0%; p = 0.0005). Wenckebach VAB was common in NV/NF-ORTs (78%), but VAB patterns varied in AVNRTs. The His-His interval transiently prolonged in the following beat after the VAB in most AVNRTs but rarely did in NV/NF-ORTs (79% vs. 22%; p = 0.01). NV/NF-ORT was diagnosed by His-refractory premature ventricular contractions (n = 5) and the findings during right ventricular overdrive pacing showing an uncorrected/corrected post-pacing interval (PPI)-tachycardia cycle length (TCL) ≤115/110 ms (n = 5/5), orthodromic His capture (n = 6), and V-V-A (ventricle-ventricle-atrial response) response (n = 3). A single form of induced SVT (positive predictive value [PPV]: 69%; negative predictive value [NPV]: 100%), Wenckebach VAB (PPV: 70%; NPV: 87%), stable His-His interval despite VAB (PPV: 70%; NPV: 85%), orthodromic His capture (PPV: 100%; NPV: 97%), and V-V-A response (PPV: 100%; NPV: 95%) characterized NV/NF-ORT, and a PPI-TCL of ≤125 ms (PPV: 100%; NPV: 100%) characterized NV-ORT. CONCLUSIONS Induction of a single SVT form, Wenckebach VAB, stable His-His interval despite VAB, orthodromic His capture, and V-V-A response appeared to discriminate NV/NF-ORT from AVNRT, with a PPI-TCL of ≤125 ms discriminating NV-ORT from NF-ORT and AVNRT.
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Affiliation(s)
- Koichi Nagashima
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Ibaraki, Tokyo, Japan.
| | - Yoshiaki Kaneko
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Mitsunori Maruyama
- Department of Cardiovascular Medicine, Nippon Medical School Musashikosugi Hospital, Tokyo, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; Department of Heart Rhythm Management, Yokohama Rosai Hospital, Yokohama, Kanagawa, Japan
| | - Shinya Kowase
- Department of Heart Rhythm Management, Yokohama Rosai Hospital, Yokohama, Kanagawa, Japan
| | - Hitoshi Mori
- Department of Pediatric Cardiology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Naokata Sumitomo
- Department of Pediatric Cardiology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Seiji Fukamizu
- Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Shibuya, Tokyo, Japan
| | - Rintaro Hojo
- Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Shibuya, Tokyo, Japan
| | - Takeshi Kitamura
- Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Shibuya, Tokyo, Japan
| | - Kyoko Soejima
- Department of Cardiovascular Medicine, Kyorin University Hospital, Mitaka, Tokyo, Japan
| | - Akiko Ueda
- Division of Advance Arrhythmia Management, Kyorin University Hospital, Mitaka, Tokyo, Japan
| | - Takayuki Otsuka
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Kobe, Japan
| | - Mitsuru Takami
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kojiro Tanimoto
- Department of Cardiology, Tokyo Medical Center, Tokyo, Japan
| | - Tetsuya Asakawa
- Department of Cardiology, Yamanashi Kosei Hospital, Yamanashi, Japan
| | - Kenta Kumagai
- Department of Cardiology, Odawara Cardiovascular Hospital, Odawara, Japan
| | - Shuntaro Tamura
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hiroshi Hasegawa
- Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Kazuyoshi Ogura
- Division of Cardiovascular Medicine, Endocrinology and Metabolism, Department of Molecular Medicine and Therapeutics, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Mitsuharu Kawamura
- Division of Cardiology, Showa University School of Medicine, Tokyo, Japan
| | - Yumi Munetsugu
- Division of Cardiology, Showa University School of Medicine, Tokyo, Japan
| | - Morio Shoda
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Satoshi Higuchi
- Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hisanori Kanazawa
- Department of Cardiac Arrhythmias, Kumamoto University Hospital, Kumamoto, Japan
| | - Shigeki Kusa
- Division of Cardiology, Tsuchiura Kyodo Hospital, Tsuchiura, Japan
| | - Akira Mizukami
- Department of Cardiology, Kameda Medical Center, Kamagawa, Japan
| | - Shinsuke Miyazaki
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Yuji Wakamatsu
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Ibaraki, Tokyo, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Ibaraki, Tokyo, Japan
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75
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Hasebe H, Yoshida K, Nogami A, Furuyashiki Y, Hanaki Y, Baba M, Ieda M. A simple pacing maneuver to unmask an epicardial connection involving the right-sided pulmonary veins. J Cardiovasc Electrophysiol 2020; 32:287-296. [PMID: 33305884 DOI: 10.1111/jce.14835] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/14/2020] [Accepted: 11/30/2020] [Indexed: 02/02/2023]
Abstract
INTRODUCTION An epicardial connection (EC) between the right-sided pulmonary venous (PV) carina and right atrium (RA) is one of the mechanisms for which carinal ablation is required for right-sided PV isolation. The purpose of the study was to devise a simple pacing maneuver to differentiate an EC from a residual conduction gap on the antral ablation line during radiofrequency catheter ablation. METHODS AND RESULTS This study included 133 consecutive patients. After one round of ablation, electrograms at the posterior antrum outside the ablation line were recorded during sinus rhythm (SR) and coronary sinus (CS) pacing, and intervals between the antral and PV potentials were measured in each rhythm. The ΔintervalSR-CS was calculated as the difference between the interval during SR and that during CS pacing. Presence of an EC was confirmed by observation of a RA posterior wall breakthrough during right-sided PV pacing, which was then targeted for ablation. Patients with nonachievement of first-pass isolation (N = 35) and with PV reconnection during the procedure (N = 9) were classified into the EC-group (N = 20) and gap-group (N=24), respectively. The prevalence of carina breakthrough during SR was higher in the EC-group than the gap-group (18 [95%] vs. 1 [4%] patients, p < .0001). The ΔintervalSR-CS was larger in the EC-group versus gap-group (71 [interquartile range, 57-97] vs. 6 [2-9] ms, p < .0001). In all patients with an EC, RA ablation resulted in delay (32 [20-40] ms) (N = 15) or elimination of PV potentials (N = 5). CONCLUSION An EC can be efficiently discriminated from a conduction gap by a simple pacing maneuver.
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Affiliation(s)
- Hideyuki Hasebe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Department of Arrhythmology, Shizuoka Saiseikai General Hospital, Shizuoka, Japan
| | - Kentaro Yoshida
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | - Yuichi Hanaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
| | - Masako Baba
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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76
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Satomi K, Watanabe E, Takatsuki S, Fukamizu S, Iwasaki Y, Takeuchi D, Nogami A. Statement for electrophysiological procedures under the COVID-19 pandemic from the Japanese heart rhythm society task force. J Arrhythm 2020; 36:1117-1121. [PMID: 33335638 PMCID: PMC7733557 DOI: 10.1002/joa3.12419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/27/2020] [Accepted: 08/02/2020] [Indexed: 12/31/2022] Open
Abstract
COVID-19 is a global catastrophe with markedly reduced health and economy of human civilization. Heart rhythm disorder has also been impacted by this disease. This statement is the universal criteria for EP procedures in the new era, which we will face during COVID-19 pandemic. We described the methods of triage based on the severity of disease, the regional state of pandemic and supply of medical resources. This guidance will be the universal criteria for EP procedures in the new era, which we will face during and after the COVID-19 pandemic.
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Affiliation(s)
- Kazuhiro Satomi
- Heart Rhythm CenterTokyo Medical University HospitalTokyoJapan
| | - Eiichi Watanabe
- Department of CardiologyFujita Health University Bantane HospitalNagoyaJapan
| | - Seiji Takatsuki
- Department of CardiologyKeio University School of MedicineTokyoJapan
| | - Seiji Fukamizu
- Department of CardiologyTokyo Metropolitan Hiroo HospitalTokyoJapan
| | - Yu‐ki Iwasaki
- Department of Cardiovascular MedicineNippon Medical SchoolTokyoJapan
| | - Daiji Takeuchi
- Department of Pediatric Cardiology and Adult Congenital CardiologyTokyo Women’s Medical University HospitalTokyoJapan
| | - Akihiko Nogami
- Department of CardiologyFaculty of MedicineUniversity of TsukubaTsukubaJapan
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77
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Kusano K, Yamane T, Inoue K, Takegami M, Nakao YM, Miyamoto Y, Shoda M, Nogami A. The Japanese Catheter Ablation Registry (J-AB): A prospective nationwide multicenter registry in Japan. Annual report in 2018. J Arrhythm 2020; 36:953-961. [PMID: 33335609 PMCID: PMC7733576 DOI: 10.1002/joa3.12445] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/15/2020] [Accepted: 09/24/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND To analyze the type of ablation procedure, acute outcomes, and complications related to catheter ablation in Japan during the year of 2018. METHOD The Japanese Catheter Ablation (J-AB) registry is a voluntary, nationwide, multicenter, prospective, observational registry, performed by the Japanese Heart Rhythm Society (JHRS) in collaboration with the National Cerebral and Cardiovascular Center using a Research Electronic Data Capture system. The procedural outcome and complications during hospitalizations were collected. RESULT A total of 55 525 procedures (mean age of 64.5 years and 66.5% male) from 369 hospitals were collected. The total number of target arrhythmias was 61 610 including atrial fibrillation (AF, 65.6%), atrial flutter (AFL) or atrial tachycardia (16.7%), atrioventricular nodal reentrant tachycardia (7.4%), atrioventricular reentrant tachycardia (3.5%), premature ventricular contractions (4.1%), and ventricular tachycardia (VT, 2.0%). Over a 90% acute success rate was observed among all arrhythmias except for VT due to structural heart disease, and notably, an over 99% success rate was achieved for pulmonary vein isolation of AF and inferior vena cava-tricuspid valve isthmus block for isthmus-dependent AFL. Acute complications during hospitalization were observed in 1558 patients (2.8%), including major bleeding (Bleeding Academic Research Consortium: BARC criteria ≥2) in 1.1%, cerebral or systemic embolisms in 0.2%, and death in 0.1%. Acute complications were more often observed with AF ablation (P < .001), especially the first AF ablation session and with structural heart disease (P < .001). CONCLUSION The J-AB registry provided real-world data regarding the acute outcomes and complications of ablation for the various types of arrhythmias in Japan.
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Affiliation(s)
- Kengo Kusano
- Department of Cardiovascular MedicineNational Cerebral and Cardiovascular CenterOsakaJapan
| | - Teiichi Yamane
- Division of CardiologyDepartment of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Koichi Inoue
- Cardiovascular CenterSakurabashi Watanabe HospitalOsakaJapan
| | - Misa Takegami
- Department of Preventive Medicine and Epidemiologic InformaticsNational Cerebral and Cardiovascular CenterSuitaJapan
| | - Yoko M. Nakao
- Center for Cerebral and Cardiovascular Disease InformationOpen Innovation CenterNational Cerebral and Cardiovascular CenterSuitaJapan
| | - Yoshihiro Miyamoto
- Center for Cerebral and Cardiovascular Disease InformationOpen Innovation CenterNational Cerebral and Cardiovascular CenterSuitaJapan
| | - Morio Shoda
- Clinical Research Division of Heart Rhythm ManagementDepartment of CardiologyTokyo Women's Medical UniversityTokyoJapan
| | - Akihiko Nogami
- Department of CardiologyFaculty of MedicineUniversity of TsukubaTsukubaJapan
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78
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Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, Berruezo A, Callans DJ, Chung MK, Cuculich P, d'Avila A, Deal BJ, Della Bella P, Deneke T, Dickfeld TM, Hadid C, Haqqani HM, Kay GN, Latchamsetty R, Marchlinski F, Miller JM, Nogami A, Patel AR, Pathak RK, Sáenz Morales LC, Santangeli P, Sapp JL, Sarkozy A, Soejima K, Stevenson WG, Tedrow UB, Tzou WS, Varma N, Zeppenfeld K. 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias. Europace 2020; 21:1143-1144. [PMID: 31075787 DOI: 10.1093/europace/euz132] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and treat them. The field of catheter ablation has progressed with the development of new methods and tools, and with the publication of large clinical trials. Therefore, global cardiac electrophysiology professional societies undertook to outline recommendations and best practices for these procedures in a document that will update and replace the 2009 EHRA/HRS Expert Consensus on Catheter Ablation of Ventricular Arrhythmias. An expert writing group, after reviewing and discussing the literature, including a systematic review and meta-analysis published in conjunction with this document, and drawing on their own experience, drafted and voted on recommendations and summarized current knowledge and practice in the field. Each recommendation is presented in knowledge byte format and is accompanied by supportive text and references. Further sections provide a practical synopsis of the various techniques and of the specific ventricular arrhythmia sites and substrates encountered in the electrophysiology lab. The purpose of this document is to help electrophysiologists around the world to appropriately select patients for catheter ablation, to perform procedures in a safe and efficacious manner, and to provide follow-up and adjunctive care in order to obtain the best possible outcomes for patients with ventricular arrhythmias.
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Affiliation(s)
| | | | | | - Petr Peichl
- Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Minglong Chen
- Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Narayanan Namboodiri
- Sree Chitra Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | | | | | | | - Elad Anter
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | | | | | | | - Andre d'Avila
- Hospital Cardiologico SOS Cardio, Florianopolis, Brazil
| | - Barbara J Deal
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | | | | | - Claudio Hadid
- Hospital General de Agudos Cosme Argerich, Buenos Aires, Argentina
| | - Haris M Haqqani
- University of Queensland, The Prince Charles Hospital, Chermside, Australia
| | - G Neal Kay
- University of Alabama at Birmingham, Birmingham, Alabama
| | | | | | - John M Miller
- Indiana University School of Medicine, Krannert Institute of Cardiology, Indianapolis, Indiana
| | | | - Akash R Patel
- University of California San Francisco Benioff Children's Hospital, San Francisco, California
| | | | | | | | - John L Sapp
- Queen Elizabeth II Health Sciences Centre, Halifax, Canada
| | - Andrea Sarkozy
- University Hospital Antwerp, University of Antwerp, Antwerp, Belgium
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Nakajima H, Seo Y, Ishizu T, Iida N, Sato K, Yamamoto M, Machino-Ohtsuka T, Nogami A, Ohte N, Ieda M. Features of Lead-Induced Tricuspid Regurgitation in Patients With Heart Failure Events After Cardiac Implantation of Electronic Devices - A Three-Dimensional Echocardiographic Study. Circ J 2020; 84:2302-2311. [PMID: 33071243 DOI: 10.1253/circj.cj-20-0620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Lead-induced tricuspid regurgitation (TR) after cardiac implantable electronic device (CIED) implantation is not fully understood. This study aimed to reveal the features of lead-induced TR by 3-dimensional echocardiography (3DE) in patients with heart failure (HF) events after CIED implantation.Methods and Results:In 143 patients, 3DE assessments for the tricuspid valve (TV) and right ventricular morphologies were sequentially performed within 3 days after CIED implantations, during TR exacerbations, and at ≥6 months after TR exacerbations. TR exacerbations were observed in 29 patients (median 10 months after CIED implantation, range 1-28 months), 15 of whom had lead-induced TR. In the 29 patients, the tenting height of the TV, tricuspid annular (TA) height, and TA area at baseline were independent predictors for worsening TR. In patients with lead-induced TR, tenting height of the TV and TA area were identified as the risk factors. In addition, all patients with a lead positioned on a leaflet immediately after CIED implantations developed lead-induced TR. At follow up, TR exacerbation of lead-induced TR persisted with TA remodeling, but it was improved in the lead non-related-TR group. CONCLUSIONS TA remodeling at baseline and a lead location on a leaflet immediately after CIED implantation were associated with lead-induced TR in patients with HF events after CIED implantation. Persistent TA remodeling may make lead-induced TR refractory against HF treatments.
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Affiliation(s)
| | - Yoshihiro Seo
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences
| | - Tomoko Ishizu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Noriko Iida
- Clinical Laboratory, University of Tsukuba Hospital
| | - Kimi Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | | | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Nobuyuki Ohte
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
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80
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Phanthawimol W, Komatsu Y, Hattori M, Naeemah Q, Shimoo S, Ota C, Ichihara N, Kimata A, Yamasaki H, Igarashi M, Nogami A. Left coronary cusp ablation to eliminate epicardial substrates – a novel strategy for left ventricular summit ventricular tachycardia ablation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Catheter ablation of LV summit VT can be challenging due to possible subepicardial or intramural site of origin and its close proximity to the major coronary vessels.
Objective
Local electrograms monitoring inside LV summit communicating vein potentially defines arrhythmogenic substrates and facilitates ablation from the adjacent anatomical structures.
Results
We experienced two cases of LV summit VT with epicardial local abnormal ventricular activities (Epi-LAVA) recorded from distal bipolar electrode of the 2F microcatheter in communicating vein close to the superior portion of LV summit. During sinus rhythm, Epi-LAVA displayed isolated late fractionated potentials in the first case but had initial fractionated potentials fused with terminal portion of far-field ventricular signals and late isolated potentials exhibiting 2:1 conduction in the second case. Epi-LAVA represented earliest ventricular signals during VT in both cases. Pace mapping at Epi-LAVA sites yielded single QRS morphology with excellent pacemap score and induced VT. Our strategy was to perform ablation at the facing site of Epi-LAVA aiming to eliminate the potentials transmurally. Radiofrequency (RF) energy was applied above and under the left coronary cusp opposite to Epi-LAVA sites using 3.5-mm tip open-irrigation catheter with a power of 30–35 W for 60 seconds under real-time intracardiac echocardiograhic guidance. VT was slowed and terminated in 1 second. Repeat ablation delayed and completely abolished Epi-LAVA followed by noninducibility of VT. Anatomical proximity of the left coronary cusp semilunar insertion and subepicardial or intramural site of origin possibly dictates successful ablation. Epi-LAVA from coronary vein mapping serve as a new landmark of the ablation target with a measurable procedural endpoint.
Conclusion
Elimination of epicardial substrates with RF energy application at the left coronary cusp can be a novel strategy for LV summit VT ablation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - Y Komatsu
- University of Tsukuba, Ibaraki, Japan
| | - M Hattori
- University of Tsukuba, Ibaraki, Japan
| | | | - S Shimoo
- University of Tsukuba, Ibaraki, Japan
| | - C Ota
- University of Tsukuba, Ibaraki, Japan
| | | | - A Kimata
- University of Tsukuba, Ibaraki, Japan
| | | | | | - A Nogami
- University of Tsukuba, Ibaraki, Japan
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81
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Morishima I, Nogami A, Kanzaki Y. High-Resolution Mapping to Unmask and Localize Presystolic Purkinje Potentials During Idiopathic Verapamil-Sensitive Left Anterior Papillary Muscle Fascicular-Purkinje Ventricular Tachycardia. Circ J 2020; 84:2035. [DOI: 10.1253/circj.cj-20-0597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Akihiko Nogami
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba
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82
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Wakamiya A, Kamakura T, Shinohara T, Yodogawa K, Murakoshi N, Morita H, Takahashi N, Inden Y, Shimizu W, Nogami A, Horie M, Nakajima K, Kataoka N, Wada M, Yamagata K, Ishibashi K, Inoue Y, Miyamoto K, Nagase S, Noda T, Aiba T, Yasuda S, Ieda M, Kusano K. Improved Risk Stratification of Patients With Brugada Syndrome by the New Japanese Circulation Society Guideline - A Multicenter Validation Study. Circ J 2020; 84:2158-2165. [PMID: 33071242 DOI: 10.1253/circj.cj-19-0910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The new guideline (NG) published by the Japanese Circulation Society (JCS) places emphasis on previous arrhythmic syncope and inducibility of ventricular fibrillation (VF) by ≤2 extrastimuli during programmed electrical stimulation (PES) for deciding the indication of an implantable cardioverter-defibrillator in patients with Brugada syndrome (BrS). This study evaluated the usefulness of the NG and compared it with the former guideline (FG) for risk stratification of patients with BrS.Methods and Results:This was a multicenter (7 Japanese hospitals) retrospective study involving 234 patients with BrS who underwent PES at baseline (226 males; mean age at diagnosis: 44.9±13.4 years). At diagnosis, 46 patients (20%) had previous VF, 100 patients (43%) had previous syncope, and 88 patients (37%) were asymptomatic. We evaluated the difference in the incidence of VF in each indication according to the new and FGs. During the follow-up period (mean: 6.9±5.2 years), the incidence of VF was higher in patients with Class IIa indication according to the NG (NG: 16/45 patients [35.6%] vs. FG: 16/104 patients [15.4%]), while the incidence of VF in patients with other than class I or IIa indication was similarly low in both guidelines (NG: 2/143 patients [1.4%] vs. FG: 2/84 patients [2.4%]). CONCLUSIONS This study validated the usefulness of the NG for risk stratification of BrS patients.
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Affiliation(s)
- Akinori Wakamiya
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center.,Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Tsukasa Kamakura
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University
| | - Kenji Yodogawa
- Department of Cardiovascular Medicine, Nippon Medical School
| | | | - Hiroshi Morita
- Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University
| | - Yasuya Inden
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Minoru Horie
- Center for Epidemiologic Research in Asia and Department of Cardiovascular Medicine, Shiga University of Medical Science
| | - Kenzaburo Nakajima
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Naoya Kataoka
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Mitsuru Wada
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Kenichiro Yamagata
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Kohei Ishibashi
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Yuko Inoue
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Koji Miyamoto
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Satoshi Nagase
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Takashi Noda
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Takeshi Aiba
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Satoshi Yasuda
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Kengo Kusano
- Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
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83
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Ogawa K, Igarashi M, Nogami A, Yamamoto M, Sugano A, Sekiguchi Y, Aonuma K, Ieda M. The Usefulness and Limitations of Impedance Cardiography for Cardiac Resynchronization Therapy Device Optimization. Int Heart J 2020; 61:896-904. [PMID: 32999195 DOI: 10.1536/ihj.19-620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Identifying the optimal atrioventricular (AV) or interventricular (VV) delay is beneficial for patients using cardiac resynchronization therapy (CRT) devices. Ultrasonic echocardiography (UCG) has been the most commonly used method; however, it requires high technical knowledge. Impedance cardiography (ICG) can calculate stroke volume by measuring changes in transthoracic electric impedance. This study sought to assess the clinical utility of ICG in comparison with that of UCG for the optimization of CRT devices.Patients who underwent CRT device implantation were retrospectively analyzed. One week after implantation, optimization of AV delay (AVD) was performed in every patient with ICG (AVD-ICG) and UCG (AVD-UCG). VV delay (VVD) was then determined according to the optimal AVD using these two methods.Forty-two patients were enrolled. Average AVD-ICG was significantly shorter than AVD-UCG (128 ± 49 versus 146 ± 41 milliseconds, P = 0.018). Five patients (12%) had the same optimized AVD with two methods, and the difference between AVD-ICG and AVD-UCG was ≤ 20 milliseconds in 19 patients (45%). In the multivariate analysis, the presence of postoperative mitral regurgitation (MR) was an independent predictor of AVD-ICG/AVD-UCG mismatch, defined as a difference over 20 milliseconds (odds ratio = 10.71; 95% confidence interval = 1.72 to 66.72; P = 0.018). The results of optimized VVD were similar using both methods.ICG might be a promising tool for the rapid optimization of CRT devices. However, in patients with moderate-to-severe MR, ICG may not be able to optimize AVD.
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Affiliation(s)
- Kojiro Ogawa
- Department of Cardiology, Faculty of Medicine, University of Tsukuba.,Department of Cardiology, Hitachi General Hospital
| | - Miyako Igarashi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | - Akinori Sugano
- Department of Cardiology, Faculty of Medicine, University of Tsukuba.,Department of Cardiology, Tsukuba Medical Center Hospital
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba.,Department of Internal Medicine (Cardiology), Kasumigaura Medical Center
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
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84
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Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, Berruezo A, Callans DJ, Chung MK, Cuculich P, d'Avila A, Deal BJ, Della Bella P, Deneke T, Dickfeld TM, Hadid C, Haqqani HM, Kay GN, Latchamsetty R, Marchlinski F, Miller JM, Nogami A, Patel AR, Pathak RK, Saenz Morales LC, Santangeli P, Sapp JL, Sarkozy A, Soejima K, Stevenson WG, Tedrow UB, Tzou WS, Varma N, Zeppenfeld K. 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: Executive summary. J Interv Card Electrophysiol 2020; 59:81-133. [PMID: 31960344 PMCID: PMC7508755 DOI: 10.1007/s10840-019-00664-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and treat them. The field of catheter ablation has progressed with the development of new methods and tools, and with the publication of large clinical trials. Therefore, global cardiac electrophysiology professional societies undertook to outline recommendations and best practices for these procedures in a document that will update and replace the 2009 EHRA/HRS Expert Consensus on Catheter Ablation of Ventricular Arrhythmias. An expert writing group, after reviewing and discussing the literature, including a systematic review and meta-analysis published in conjunction with this document, and drawing on their own experience, drafted and voted on recommendations and summarized current knowledge and practice in the field. Each recommendation is presented in knowledge byte format and is accompanied by supportive text and references. Further sections provide a practical synopsis of the various techniques and of the specific ventricular arrhythmia sites and substrates encountered in the electrophysiology lab. The purpose of this document is to help electrophysiologists around the world to appropriately select patients for catheter ablation, to perform procedures in a safe and efficacious manner, and to provide follow-up and adjunctive care in order to obtain the best possible outcomes for patients with ventricular arrhythmias.
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Affiliation(s)
| | | | | | - Petr Peichl
- Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Minglong Chen
- Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Narayanan Namboodiri
- Sree Chitra Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | | | | | | | - Elad Anter
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | | | | | | | - Andre d'Avila
- Hospital Cardiologico SOS Cardio, Florianopolis, Brazil
| | - Barbara J Deal
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | | | | - Claudio Hadid
- Hospital General de Agudos Cosme Argerich, Buenos Aires, Argentina
| | - Haris M Haqqani
- University of Queensland, The Prince Charles Hospital, Chermside, Australia
| | - G Neal Kay
- University of Alabama at Birmingham, Birmingham, AL, USA
| | | | | | - John M Miller
- Indiana University School of Medicine, Krannert Institute of Cardiology, Indianapolis, IN, USA
| | | | - Akash R Patel
- University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA
| | | | | | | | - John L Sapp
- Queen Elizabeth II Health Sciences Centre, Halifax, Canada
| | - Andrea Sarkozy
- University Hospital Antwerp, University of Antwerp, Antwerp, Belgium
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85
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Shoda M, Kusano K, Goya M, Nishii N, Imai K, Okamoto Y, Takegami M, Nakao YM, Miyamoto Y, Nogami A. Study Design of the Nationwide Japanese Lead Extraction (J-LEX) Registry: Protocol for a Prospective, Multicenter, Open Registry. J Arrhythm 2020; 36:849-853. [PMID: 33024462 PMCID: PMC7532273 DOI: 10.1002/joa3.12396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Transvenous lead extractions (TLEs) in Japan have grown to become the standard therapy since the approval of the laser extraction system in 2008. However, little is known about the current indications, methods, success rate, and acute complications in the real-world setting. METHODS The Japanese Lead EXtraction (J-LEX) registry is a nationwide, multicenter, observational registry, performed by the Japanese Heart Rhythm Society (JHRS) in collaboration with the National Cerebral and Cardiovascular Center. This study is a nationwide registry ordered by the JHRS and its data are collected prospectively using the Research Electronic Data Capture (REDCap) system. The acute success rate at discharge and complications associated with TLEs will be collected in all cases. Based on the provided information, the annual incidence and predictive factors for the outcomes will be investigated by the Event Assessment Committee (EAC). This registry started in July 2018 and the number of participating medical institutions will be more than 50 hospitals and the target number of procedures will be 500-1000 per year. We will also compare the results with other registries in foreign countries. RESULT The results of this study are currently under investigation. CONCLUSION The J-LEX registry will provide real-world data regarding the results and complications of TLEs for the various types of indications, methods, and performing hospitals in Japan.
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Affiliation(s)
- Morio Shoda
- Department of Cardiology Tokyo Women's Medical University Tokyo Japan
- Department of Cardiovascular Medicine Shinshu University School of Medicine Matsumoto Japan
| | - Kengo Kusano
- Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Masahiko Goya
- Department of Cardiovascular Medicine Heart Rhythm Center Tokyo Medical and Dental University Tokyo Japan
| | - Nobuhiro Nishii
- Department of Cardiovascular Therapeutics Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Katsuhiko Imai
- Department of Cardiovascular Surgery Kure Medical Center & Chugoku Cancer Center National Hospital Organization Kure Japan
| | - Yoji Okamoto
- Department of Cardiology Kawasaki Medical School General Medical Center Okayama Japan
| | - Misa Takegami
- Department of Preventive Medicine and Epidemiology National Cerebral and Cardiovascular Center Suita Japan
| | - Yoko M Nakao
- Center for Cerebral and Cardiovascular Disease Information Open Innovation Center National Cerebral and Cardiovascular Center Suita Japan
| | - Yoshihiro Miyamoto
- Center for Cerebral and Cardiovascular Disease Information Open Innovation Center National Cerebral and Cardiovascular Center Suita Japan
| | - Akihiko Nogami
- Department of Cardiology Faculty of Medicine University of Tsukuba Tsukuba Japan
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86
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Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, Berruezo A, Callans DJ, Chung MK, Cuculich P, d'Avila A, Deal BJ, Bella PD, Deneke T, Dickfeld TM, Hadid C, Haqqani HM, Kay GN, Latchamsetty R, Marchlinski F, Miller JM, Nogami A, Patel AR, Pathak RK, Saenz Morales LC, Santangeli P, Sapp JL, Sarkozy A, Soejima K, Stevenson WG, Tedrow UB, Tzou WS, Varma N, Zeppenfeld K. 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias. J Interv Card Electrophysiol 2020; 59:145-298. [PMID: 31984466 PMCID: PMC7223859 DOI: 10.1007/s10840-019-00663-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ventricular arrhythmias are an important cause of morbidity and mortality and come in a variety of forms, from single premature ventricular complexes to sustained ventricular tachycardia and fibrillation. Rapid developments have taken place over the past decade in our understanding of these arrhythmias and in our ability to diagnose and treat them. The field of catheter ablation has progressed with the development of new methods and tools, and with the publication of large clinical trials. Therefore, global cardiac electrophysiology professional societies undertook to outline recommendations and best practices for these procedures in a document that will update and replace the 2009 EHRA/HRS Expert Consensus on Catheter Ablation of Ventricular Arrhythmias. An expert writing group, after reviewing and discussing the literature, including a systematic review and meta-analysis published in conjunction with this document, and drawing on their own experience, drafted and voted on recommendations and summarized current knowledge and practice in the field. Each recommendation is presented in knowledge byte format and is accompanied by supportive text and references. Further sections provide a practical synopsis of the various techniques and of the specific ventricular arrhythmia sites and substrates encountered in the electrophysiology lab. The purpose of this document is to help electrophysiologists around the world to appropriately select patients for catheter ablation, to perform procedures in a safe and efficacious manner, and to provide follow-up and adjunctive care in order to obtain the best possible outcomes for patients with ventricular arrhythmias.
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Affiliation(s)
| | | | | | - Petr Peichl
- Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Minglong Chen
- Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Narayanan Namboodiri
- Sree Chitra Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | | | | | | | - Elad Anter
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | | | | | | | - Andre d'Avila
- Hospital Cardiologico SOS Cardio, Florianopolis, Brazil
| | - Barbara J Deal
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | | | | - Claudio Hadid
- Hospital General de Agudos Cosme Argerich, Buenos Aires, Argentina
| | - Haris M Haqqani
- University of Queensland, The Prince Charles Hospital, Chermside, Australia
| | - G Neal Kay
- University of Alabama at Birmingham, Birmingham, AL, USA
| | | | | | - John M Miller
- Indiana University School of Medicine, Krannert Institute of Cardiology, Indianapolis, IN, USA
| | | | - Akash R Patel
- University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA
| | | | | | | | - John L Sapp
- Queen Elizabeth II Health Sciences Centre, Halifax, Canada
| | - Andrea Sarkozy
- University Hospital Antwerp, University of Antwerp, Antwerp, Belgium
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87
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Baba M, Yoshida K, Naruse Y, Hattori A, Yui Y, Kimata A, Ito Y, Tsumagari Y, Tsuneoka H, Shinoda Y, Harunari T, Hanaki Y, Hasebe H, Misaki M, Abe D, Nogami A, Ieda M, Takeyasu N. Predictors of Recurrence after Catheter Ablation of Paroxysmal Atrial Fibrillation in Different Follow-Up Periods. Medicina (Kaunas) 2020; 56:medicina56090465. [PMID: 32932837 PMCID: PMC7557836 DOI: 10.3390/medicina56090465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/28/2020] [Accepted: 09/09/2020] [Indexed: 11/24/2022]
Abstract
Background and objectives: Pulmonary vein (PV) reconnection is a major reason for recurrence after catheter ablation of paroxysmal atrial fibrillation (PAF). However, the timing of the recurrence varies between patients, and recurrence >1 year after ablation is not uncommon. We sought to elucidate the characteristics of atrial fibrillation (AF) that recurred in different follow-up periods. Materials and Methods: Study subjects comprised 151 consecutive patients undergoing initial catheter ablation of PAF. Left atrial volume index (LAVi) and atrial/brain natriuretic peptide (ANP/BNP) levels were systematically measured annually over 3 years until AF recurred. Results: Study subjects were classified into four groups: non-recurrence group (n = 84), and short-term- (within 1 year) (n = 30), mid-term- (1–3 years) (n = 26), and long-term-recurrence group (>3 years) (n = 11). The short-term-recurrence group was characterized by a higher prevalence of diabetes mellitus (hazard ratio 2.639 (95% confidence interval, 1.174–5.932), p = 0.019 by the Cox method), frequent AF episodes (≥1/week) before ablation (4.038 (1.545–10.557), p = 0.004), and higher BNP level at baseline (per 10 pg/mL) (1.054 (1.029–1.081), p < 0.0001). The mid-term-recurrence group was associated with higher BNP level (1.163 (1.070–1.265), p = 0.0004), larger LAVi (mL/m2) (1.033 (1.007–1.060), p = 0.013), and longer AF cycle length at baseline (per 10 ms) (1.194 (1.058–1.348), p = 0.004). In the long-term-recurrence group, the ANP and BNP levels were low throughout follow-up, as with those in the non-recurrence group, and AF cycle length was shorter (0.694 (0.522–0.924), p = 0.012) than those in the other recurrence groups. Conclusions: Distinct characteristics of AF were found according to the time to first recurrence after PAF ablation. The presence of secondary factors beyond PV reconnections could be considered as mechanisms for the recurrence of PAF in each follow-up period.
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Affiliation(s)
- Masako Baba
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Kentaro Yoshida
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
- Correspondence:
| | - Yoshihisa Naruse
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Ai Hattori
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Yoshiaki Yui
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Akira Kimata
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Yoko Ito
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Yasuaki Tsumagari
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Hidekazu Tsuneoka
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Yasutoshi Shinoda
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Tomohiko Harunari
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Yuichi Hanaki
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Hideyuki Hasebe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Masako Misaki
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Daisuke Abe
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
| | - Noriyuki Takeyasu
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama 309-1793, Japan; (M.B.); (Y.N.); (A.H.); (Y.Y.); (A.K.); (Y.I.); (Y.T.); (H.T.); (Y.S.); (T.H.); (Y.H.); (M.M.); (D.A.); (N.T.)
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (H.H.); (A.N.); (M.I.)
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Seo Y, Nakajima H, Ishizu T, Iida N, Sato K, Yamamoto M, Machino-Ohtsuka T, Nogami A, Ohte N, Ieda M. Comparison of Outcomes in Patients With Heart Failure With Versus Without Lead-Induced Tricuspid Regurgitation After Cardiac Implantable Electronic Devices Implantations. Am J Cardiol 2020; 130:85-93. [PMID: 32622503 DOI: 10.1016/j.amjcard.2020.05.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/20/2020] [Accepted: 05/29/2020] [Indexed: 11/16/2022]
Abstract
Cardiac implantable electronic devices (CIED) implantations may cause lead-induced tricuspid regurgitation (LITR). Although patients with CIED have the risk of functional non-lead induced TR (Non-LITR). This study aimed to compare of clinical outcome between LITR and Non-LITR. The mechanism of TR was determined by 3-dimensional echocardiography. The primary end point was heart failure (HF) hospitalizations after CIED implantation. In patients with HF events, subsequent clinical outcomes after HF hospitalization were compared between no TR, LITR, and Non-LITR groups. In eligible 373 patients, 67 patients had HF hospitalization, of whom worsened TR was observed in 49 patients. In the remaining 307 patients, worsened TR was observed in only 10 patients (3.3%). Of the 49 patients with worsened TR, 18 patients (37%) had LITR. In 67 patients with HF hospitalization, 25 patients (37%) met rehospitalization. All severe LITR persisted after HF events. Meanwhile, severe Non-LITR improved to moderate or mild level. Cox proportional hazard model analyses revealed LITR was the independent risk factor of rehospitalization. Both LITR and Non-LITR were common at HF events after CIED implantations. However, LITR persisted and might contribute to a worse prognosis. In patients with TR after CIED implantations, 3-dimensional echocardiography should be performed to diagnose the LITR accurately, which may contribute to improving the clinical outcome.
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Affiliation(s)
- Yoshihiro Seo
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Hideki Nakajima
- Clinical Laboratory, University of Tsukuba Hospital, Tsukuba, Japan
| | - Tomoko Ishizu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Noriko Iida
- Clinical Laboratory, University of Tsukuba Hospital, Tsukuba, Japan
| | - Kimi Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masayoshi Yamamoto
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Ohte
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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89
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Igarashi M, Nogami A, Fukamizu S, Sekiguchi Y, Nitta J, Sakamoto N, Sakamoto Y, Kurosaki K, Takahashi Y, Kimata A, Komatsu Y, Machino T, Kuroki K, Yamasaki H, Aonuma K, Ieda M. Acute and long-term results of bipolar radiofrequency catheter ablation of refractory ventricular arrhythmias of deep intramural origin. Heart Rhythm 2020; 17:1500-1507. [DOI: 10.1016/j.hrthm.2020.04.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/23/2020] [Accepted: 04/01/2020] [Indexed: 11/25/2022]
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90
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Hanaki Y, Yoshida K, Baba M, Hasebe H, Takeyasu N, Nogami A, Ieda M. Interatrial distance predicts the necessity of additional carina ablation to isolate the right-sided pulmonary veins. Heart Rhythm O2 2020; 1:259-267. [PMID: 34113879 PMCID: PMC8183890 DOI: 10.1016/j.hroo.2020.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background Ablation of the pulmonary vein (PV) carina is occasionally required for PV isolation (PVI). Marshall bundle and epicardial connections between the right-sided PV (RtPV) carina and right atrium (RA) may be one of the mechanisms that necessitates carina ablation. Objective We sought to clarify anatomical characteristics predictive of the necessity of carina ablation. Methods Forty-five consecutive patients undergoing radiofrequency catheter ablation of atrial fibrillation were prospectively included in this study. Left atrial (LA) and PV size and morphology, and interatrial distance in the posterior aspect, were measured on cardiac computed tomography (CT) images. Results For right-sided PVI, the patients were divided into 2 groups based on the necessity of RtPV carina ablation, Carina-ABL group (n = 21) and Non-Carina-ABL group (n = 24). The distance between the anterior portion of the RtPV carina and RA was shorter in the Carina-ABL group vs in the Non-Carina-ABL group (7.7 ± 1.7 mm/m2 vs 9.5 ± 2.3 mm/m2; P = .005), whereas other anatomical parameters (LA and RA volumes, right inferior PV angle, and ostial diameters of the RtPVs) did not differ between the groups. For left-sided PVI, the ostial diameter and circumference of the left superior PV were smaller in the Carina-ABL group (n = 13) vs the Non-Carina-ABL group (n = 32) (8.6 ± 2.1 mm/m2 vs 7.3 ± 1.5 mm/m2; P = .044, and 34.9 ± 6.0 mm/m2 vs 30.1 ± 5.1 mm/m2; P = .017, respectively). Conclusions A shorter interatrial distance for right-sided PVI and a smaller PV ostium for left-sided PVI were associated with the necessity of additional carina ablation. The presence and location of the epicardial fibers may be affected by the atrial and PV geometry.
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Affiliation(s)
- Yuichi Hanaki
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kentaro Yoshida
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Address reprint requests and correspondence: Dr Kentaro Yoshida, Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan.
| | - Masako Baba
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hideyuki Hasebe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Noriyuki Takeyasu
- Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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91
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Yokoshiki H, Shimizu A, Mitsuhashi T, Ishibashi K, Kabutoya T, Yoshiga Y, Kohno R, Abe H, Nogami A. Trends in the use of implantable cardioverter-defibrillator and cardiac resynchronization therapy device in advancing age: Analysis of the Japan cardiac device treatment registry database. J Arrhythm 2020; 36:737-745. [PMID: 32782648 PMCID: PMC7411238 DOI: 10.1002/joa3.12377] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/25/2020] [Accepted: 05/17/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Trends of de novo implantation of cardiac implantable electronic devices (CIEDs) including implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy with a defibrillator (CRT-D) or pacemaker (CRT-P) in advancing age are unknown. METHODS Analysis of data from the Japan cardiac device treatment registry (JCDTR) with an implantation date between January 2006 and December 2016 was performed focusing on advancing age of ≧75 years. RESULTS The cohort included 17 564 ICD, 9470 CRT-D and 1087 CRT-P recipients for de novo implantation. The rate of patients ≧75 years of age increased from 17.1% to 20.5% in ICD implantation (P = .052), from 19.7% to 30.0% in CRT-D implantation (P < .0001), and from 40.0% to 64.0% in CRT-P implantation (P = .17). There was an apparent increase in the percentage of nonischemic patients aged ≧75 years receiving ICD (10.9% in 2006 to 16.4% in 2016, P = .0008) and CRT-D (17.1% in 2006 to 27.8% in 2016, P = .0001). The implantation for primary prevention ICD (P = .059) and CRT-D (P = .012) was also associated with a temporal increase in the percentage of patients aged ≧75 years. CONCLUSIONS Proportion of patients ≧75 years of age for de novo CIED implantation gradually increased from 2006 to 2016, presumably because of the growing number of nonischemic cardiomyopathy and heart failure patients requiring primary prevention of sudden cardiac death.
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Affiliation(s)
- Hisashi Yokoshiki
- Department of Cardiovascular MedicineSapporo City General HospitalSapporoJapan
| | | | - Takeshi Mitsuhashi
- Cardiovascular MedicineJichi Medical University Saitama Medical CenterSaitamaJapan
| | - Kohei Ishibashi
- Department of Cardiovascular MedicineNational Cerebral and Cardiovascular CenterSuitaJapan
| | - Tomoyuki Kabutoya
- Division of Cardiovascular MedicineDepartment of MedicineJichi Medical University School of MedicineShimotsukeJapan
| | - Yasuhiro Yoshiga
- Division of CardiologyDepartment of Medicine and Clinical ScienceYamaguchi University Graduate School of MedicineYamaguchiJapan
| | - Ritsuko Kohno
- Department of Heart Rhythm ManagementUniversity of Occupational & Environmental HealthKitakyushuJapan
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational & Environmental HealthKitakyushuJapan
| | - Akihiko Nogami
- Cardiovascular DivisionFaculty of MedicineUniversity of TsukubaTsukubaJapan
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92
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Hasebe H, Yoshida K, Furuyashiki Y, Nogami A, Ieda M. Oral caffeine intake amplifies the effect of isoproterenol in patients with frequent premature ventricular contractions. Europace 2020; 22:1261-1269. [PMID: 32500131 DOI: 10.1093/europace/euaa069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/10/2020] [Indexed: 11/14/2022] Open
Abstract
AIMS Infrequent appearance and failed induction of premature ventricular contractions (PVCs) at catheter ablation make their localization difficult and are associated with a poor procedural outcome. This study aimed to assess the effect of preprocedural oral caffeine intake on induction of PVCs during catheter ablation. METHODS AND RESULTS Seventy patients (age: 54 ± 14 years, 37 men) undergoing catheter ablation for monofocal PVCs were randomized to receive oral caffeine (5 mg/kg) or placebo. Before ablation, PVC counts for 5 min were performed at baseline and during isoproterenol infusion and the isoproterenol washout period. PVC count fluctuation was defined as the difference between the highest and lowest 5-min count among the three-time periods. The 5-min PVC counts during baseline and isoproterenol infusion were equivalent between the groups. However, those during the isoproterenol washout period and PVC count fluctuation were significantly higher in the caffeine group than the control group (73.1 ± 73.2 vs. 38.9 ± 28.9 beats/5 min, P = 0.012 and 69.3 ± 61.3 vs. 37.7 ± 30.9 beats/5 min, P = 0.008, respectively). The procedure and ablation times were significantly shorter in the caffeine group than the control group (105.0 ± 23.4 vs. 136.9 ± 43.2 min, P < 0.01 and 219.1 ± 104.7 vs. 283.5 ± 136.0 sec, P < 0.01, respectively). CONCLUSION Oral caffeine intake amplified the effect of isoproterenol infusion on PVC induction during catheter ablation. The combined use of oral caffeine intake and isoproterenol infusion can be an option to increase intraprocedural PVCs.
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Affiliation(s)
- Hideyuki Hasebe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan.,Division of Arrhythmology, Shizuoka Saiseikai General Hospital, Shizuoka, Japan
| | - Kentaro Yoshida
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
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93
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Ishikawa T, Mishima H, Barc J, Takahashi MP, Hirono K, Terada S, Kowase S, Sato T, Mukai Y, Yui Y, Ohkubo K, Kimoto H, Watanabe H, Hata Y, Aiba T, Ohno S, Chishaki A, Shimizu W, Horie M, Ichida F, Nogami A, Yoshiura KI, Schott JJ, Makita N. Cardiac Emerinopathy: A Nonsyndromic Nuclear Envelopathy With Increased Risk of Thromboembolic Stroke Due to Progressive Atrial Standstill and Left Ventricular Noncompaction. Circ Arrhythm Electrophysiol 2020; 13:e008712. [PMID: 32755394 DOI: 10.1161/circep.120.008712] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Mutations in the nuclear envelope genes encoding LMNA and EMD are responsible for Emery-Dreifuss muscular dystrophy. However, LMNA mutations often manifest dilated cardiomyopathy with conduction disturbance without obvious skeletal myopathic complications. On the contrary, the phenotypic spectrums of EMD mutations are less clear. Our aims were to determine the prevalence of nonsyndromic forms of emerinopathy, which may underlie genetically undefined isolated cardiac conduction disturbance, and the etiology of thromboembolic complications associated with EMD mutations. METHODS Targeted exon sequencing was performed in 87 probands with familial sick sinus syndrome (n=36) and a progressive cardiac conduction defect (n=51). RESULTS We identified 3 X-linked recessive EMD mutations (start-loss, splicing, missense) in families with cardiac conduction disease. All 3 probands shared a common clinical phenotype of progressive atrial arrhythmias that ultimately resulted in atrial standstill associated with left ventricular noncompaction (LVNC), but they lacked early contractures and progressive muscle wasting and weakness characteristic of Emery-Dreifuss muscular dystrophy. Because the association of LVNC with EMD has never been reported, we further genetically screened 102 LVNC patients and found a frameshift EMD mutation in a boy with progressive atrial standstill and LVNC without complications of muscular dystrophy. All 6 male EMD mutation carriers of 4 families underwent pacemaker or defibrillator implantation, whereas 2 female carriers were asymptomatic. Notably, a strong family history of stroke observed in these families was probably due to the increased risk of thromboembolism attributable to both atrial standstill and LVNC. CONCLUSIONS Cardiac emerinopathy is a novel nonsyndromic X-linked progressive atrial standstill associated with LVNC and increased risk of thromboembolism.
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Affiliation(s)
- Taisuke Ishikawa
- Omics Research Center (T.I., N.M.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hiroyuki Mishima
- Department of Human Genetics (H.M., K.-I.Y.), Nagasaki University Graduate School of Biomedical Sciences, Japan
| | - Julien Barc
- L'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, France (J.B., J.-J.S.)
| | - Masanori P Takahashi
- Department of Neurology, Osaka University Graduate School of Medicine, Suita, Japan (M.P.T.)
| | - Keiichi Hirono
- Department of Pediatrics, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Japan (K.H., F.I.)
| | - Shigenori Terada
- Department of Cardiovascular Medicine, Shin-Oyama City Hospital, Japan (S.T.)
| | - Shinya Kowase
- Division of Cardiology, Yokohama Rosai Hospital, Japan (S.K.)
| | - Teruki Sato
- Department of Cardiovascular Medicine, Akita University Graduate School of Medicine, Japan (T.S., H.W.)
| | - Yasushi Mukai
- Department of Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan (Y.M.)
| | - Yoshiaki Yui
- Department of Cardiology, Faculty of Medicine, Tsukuba University, Japan (Y.Y., A.N.)
| | - Kimie Ohkubo
- Department of Cardiovascular Medicine, Nihon University School of Medicine, Tokyo, Japan (K.O.)
| | - Hiroki Kimoto
- Department of Molecular Physiology (H.K.), Nagasaki University Graduate School of Biomedical Sciences, Japan
| | - Hiroyuki Watanabe
- Department of Cardiovascular Medicine, Akita University Graduate School of Medicine, Japan (T.S., H.W.)
| | - Yukiko Hata
- Department of Legal Medicine, Graduate School of Medicine, University of Toyama, Japan (Y.H.)
| | - Takeshi Aiba
- Department of Cardiovascular Medicine (T.A.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Seiko Ohno
- Department of Bioscience and Genetics (S.O.), National Cerebral and Cardiovascular Center, Suita, Japan
| | - Akiko Chishaki
- Clinical Nursing Laboratory, School of Medicine, Kyushu University, Fukuoka, Japan (A.C.)
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan (W.S.)
| | - Minoru Horie
- Center for Epidemiologic Research in Asia, Shiga University of Medical Science, Ohtsu, Japan (M.H.)
| | - Fukiko Ichida
- Department of Pediatrics, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Japan (K.H., F.I.)
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, Tsukuba University, Japan (Y.Y., A.N.)
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics (H.M., K.-I.Y.), Nagasaki University Graduate School of Biomedical Sciences, Japan
| | - Jean-Jacques Schott
- L'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, France (J.B., J.-J.S.)
| | - Naomasa Makita
- Omics Research Center (T.I., N.M.), National Cerebral and Cardiovascular Center, Suita, Japan
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94
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Hoshi T, Sato A, Hiraya D, Watabe H, Takeyasu N, Nogami A, Ohigashi T, Gosho M, Ieda M, Aonuma K. Short-duration triple antithrombotic therapy for atrial fibrillation patients who require coronary stenting: results of the SAFE-A study. EUROINTERVENTION 2020; 16:e164-e172. [DOI: 10.4244/eij-d-19-00920] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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95
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Affiliation(s)
- Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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96
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Hanaki Y, Machino-Ohtsuka T, Aonuma K, Komatsu Y, Machino T, Yamasaki H, Igarashi M, Sekiguchi Y, Nogami A, Ieda M. Preprocedural restoration of sinus rhythm and left atrial strain predict outcomes of catheter ablation for long-standing persistent atrial fibrillation. J Cardiovasc Electrophysiol 2020; 31:1709-1718. [PMID: 32391641 DOI: 10.1111/jce.14540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/25/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Catheter ablation (CA) for long-standing persistent atrial fibrillation (LS-AF) remains challenging. We aimed to explore whether sinus rhythm (SR) restoration and left atrium (LA) function after pretreatment with antiarrhythmic drugs (AAD's) and electrical cardioversion (ECV) predict procedural outcomes. METHODS AND RESULTS We included 100 consecutive patients with LS-AF who were treated with AAD/ECV for at least 3 months before CA. The echocardiographic LA strain during reservoir phase (LASr) was assessed after pretreatment as a marker of LA fibrosis. The recurrence was recorded for ≥1 year after the last procedure. During a 34 ± 16-month follow-up period, the single and multiple procedures and pharmaceutically assisted success rates were 40% and 71%, respectively. Patients with preprocedural SR restoration and higher LASr showed a significantly higher recurrence-free probability after the last CA (logrank P = .001 and P < .001, respectively). Failure of preprocedural SR restoration and LASr ≤8.6% were independently associated with recurrence after the last CA (hazard ratio [HR]: 3.13, 95% confidence interval [CI]: 1.42-6.91, P = .005; HR: 3.89, 95% CI: 1.65-9.17, P = .002, respectively). These parameters added incrementally to the predictive value of AF duration and LA dilatation (P = .03 and P = .002, respectively) and improved the recurrence-risk stratification (net reclassification improvement = 0.39; 95% CI = 0.13-0.65; P = .003). CONCLUSION In patients with LS-AF, the inability to restore SR and lower LASr after AAD/ECV treatment independently and incrementally predicts the recurrence after CA. These findings might be useful for determining LS-AF ablation candidates.
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Affiliation(s)
- Yuichi Hanaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takeshi Machino
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Miyako Igarashi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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97
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Qin R, Murakoshi N, Xu D, Tajiri K, Feng D, Stujanna EN, Yonebayashi S, Nakagawa Y, Shimano H, Nogami A, Koike A, Aonuma K, Ieda M. Exercise training reduces ventricular arrhythmias through restoring calcium handling and sympathetic tone in myocardial infarction mice. Physiol Rep 2020; 7:e13972. [PMID: 30806037 PMCID: PMC6389758 DOI: 10.14814/phy2.13972] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 12/21/2022] Open
Abstract
Exercise can improve morbidity and mortality in heart failure patients; however, the underlying mechanisms remain to be fully investigated. Thus, we investigated the effects of exercise on cardiac function and ventricular arrhythmias in myocardial infarction (MI) induced heart failure mice. Wild-type male mice underwent sham-operation or permanent left coronary artery ligation to induce MI. MI mice were divided into a sedentary (MI-Sed) and two intervention groups: MI-Ex (underwent 6-week treadmill exercise training) and MI-βb (oral bisoprolol treatment (1 mg/kg/d) without exercise). Cardiac function and structure were assessed by echocardiography and histology. Exercise capacity and cardiopulmonary function was accepted as oxygen consumption at peak exercise (peak VO2 ). Autonomic nervous system function and the incidence of spontaneous ventricular arrhythmia were evaluated via telemetry recording. mRNA and protein expressions in the left ventricle (LV) were investigated by real-time PCR and Western blotting. There were no differences in survival rate, MI size, cardiac function and structure, while exercise training improved peak VO2 . Compared with MI-Sed, MI-Ex, and MI-βb showed decreased sympathetic tone and lower incidence of spontaneous ventricular arrhythmia. By Western blot, the hyperphosphorylation of CaMKII and RyR2 were restored by exercise and β-blocker treatment. Furthermore, elevated expression of miR-1 and decreased expression of its target protein PP2A were recovered by exercise and β-blocker treatment. Continuous intensive exercise training can suppress ventricular arrhythmias in subacute to chronic phase of MI through restoring autonomic imbalance and impaired calcium handling, similarly to that for β-blockers.
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Affiliation(s)
- Rujie Qin
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - DongZhu Xu
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Kazuko Tajiri
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Duo Feng
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Endin N Stujanna
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Saori Yonebayashi
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Akira Koike
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.,Medical Science, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
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98
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Adachi T, Sato A, Kuroki K, Terai T, Hanaoka D, Hiraya D, Machino T, Nogami A, Ieda M, Aonuma K. Audiovisual telesupport system for cardiovascular catheter interventions: A preliminary report on the clinical implications. Catheter Cardiovasc Interv 2020; 95:906-910. [PMID: 31364807 DOI: 10.1002/ccd.28421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 06/27/2019] [Accepted: 07/17/2019] [Indexed: 11/07/2022]
Abstract
OBJECTIVES This study aimed to validate the clinical implications of audiovisual telesupport system use. BACKGROUND An audiovisual telesupport system with supervisors has been effective in guiding procedures when surgeons have limited experience with the technique. However, cardiovascular catheter interventions using an audiovisual telesupport system has not been previously reported. METHODS Starting in September 2017, two cardiologists in Kamisu Saiseikai Hospital (Kamisu, Japan, with limited cardiologists) began performing cardiovascular catheter interventions using an audiovisual telesupport system. This system enabled them to perform catheter interventions with the support of advisors in the University of Tsukuba (Tsukuba, Japan). We retrospectively assessed procedure time and complications of percutaneous coronary intervention (PCI) and catheter ablation (CA). RESULTS In the first 10 months, 21 patients with coronary artery disease underwent PCI using this system. The mean procedure duration of PCI was 42 ± 10 min. Nine patients with tachyarrhythmia including supraventricular tachycardia (SVT), ventricular premature contraction (VPC), common atrial flutter, and paroxysmal atrial fibrillation (AF) underwent CA using this system. The mean CA procedure time was 134 ± 31 min for SVT, 100 ± 14 min for VPC, and 200 min for AF. All PCI and CA procedures were successfully performed without any complications. CONCLUSIONS The audiovisual telesupport system enabled cardiologists with limited human resources to provide safe and high-quality catheter interventions.
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Affiliation(s)
- Toru Adachi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Akira Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kenji Kuroki
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tomoko Terai
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Daisuke Hanaoka
- Department of Internal Medicine, Kamisu Saiseikai Hospital, Kamisu, Japan
| | - Daigo Hiraya
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takeshi Machino
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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99
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Kim Y, Chen S, Ernst S, Guzman CE, Han S, Kalarus Z, Labadet C, Lin Y, Lo L, Nogami A, Saad EB, Sapp J, Sticherling C, Tilz R, Tung R, Kim YG, Stiles MK. 2019 APHRS expert consensus statement on three-dimensional mapping systems for tachycardia developed in collaboration with HRS, EHRA, and LAHRS. J Arrhythm 2020; 36:215-270. [PMID: 32256872 PMCID: PMC7132207 DOI: 10.1002/joa3.12308] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 01/20/2020] [Indexed: 12/24/2022] Open
Affiliation(s)
- Young‐Hoon Kim
- Department of Internal MedicineArrhythmia CenterKorea University Medicine Anam HospitalSeoulRepublic of Korea
| | - Shih‐Ann Chen
- Division of CardiologyDepartment of MedicineTaipei Veterans General HospitalTaipeiROC
| | - Sabine Ernst
- Department of CardiologyRoyal Brompton and Harefield HospitalImperial College LondonLondonUK
| | | | - Seongwook Han
- Division of CardiologyDepartment of Internal MedicineKeimyung University School of MedicineDaeguRepublic of Korea
| | - Zbigniew Kalarus
- Department of CardiologyMedical University of SilesiaKatowicePoland
| | - Carlos Labadet
- Cardiology DepartmentArrhythmias and Electrophysiology ServiceClinica y Maternidad Suizo ArgentinaBuenos AiresArgentina
| | - Yenn‐Jian Lin
- Division of CardiologyDepartment of MedicineTaipei Veterans General HospitalTaipeiROC
| | - Li‐Wei Lo
- Division of CardiologyDepartment of MedicineTaipei Veterans General HospitalTaipeiROC
| | - Akihiko Nogami
- Department of CardiologyFaculty of MedicineUniversity of TsukubaTsukubaJapan
| | - Eduardo B. Saad
- Center for Atrial FibrillationHospital Pro‐CardiacoRio de JaneiroBrazil
| | - John Sapp
- Division of CardiologyDepartment of MedicineQEII Health Sciences CentreDalhousie UniversityHalifaxNSCanada
| | | | - Roland Tilz
- Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine)University Hospital Schleswig‐Holstein (UKSH) – Campus LuebeckLuebeckGermany
| | - Roderick Tung
- Center for Arrhythmia CarePritzker School of MedicineUniversity of Chicago MedicineChicagoILUSA
| | - Yun Gi Kim
- Department of Internal MedicineArrhythmia CenterKorea University Medicine Anam HospitalSeoulRepublic of Korea
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100
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Ikeda S, Nogami A, Inoue K, Kowase S, Kurosaki K, Mukai Y, Tsutsui H. Closed‐loop stimulation as a physiological rate‐modulated pacing approach based on intracardiac impedance to lower the atrial tachyarrhythmia burden in patients with sinus node dysfunction and atrial fibrillation. J Cardiovasc Electrophysiol 2020; 31:1187-1194. [DOI: 10.1111/jce.14430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/29/2020] [Accepted: 02/24/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Shota Ikeda
- Department of CardiologyYokohama Rosai HospitalYokohama Kanagawa Japan
- Department of Cardiovascular Medicine, Graduate School of Medical SciencesKyushu UniversityFukuoka Fukuoka Japan
| | - Akihiko Nogami
- Department of Cardiology, Faculty of MedicineUniversity of TsukubaTsukuba Ibaraki Japan
| | - Kosuke Inoue
- Department of EpidemiologyUCLA Fielding School of Public HealthLos Angeles California
| | - Shinya Kowase
- Department of CardiologyYokohama Rosai HospitalYokohama Kanagawa Japan
| | - Kenji Kurosaki
- Department of CardiologyYokohama Rosai HospitalYokohama Kanagawa Japan
| | - Yasushi Mukai
- Department of Cardiovascular Medicine, Graduate School of Medical SciencesKyushu UniversityFukuoka Fukuoka Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Graduate School of Medical SciencesKyushu UniversityFukuoka Fukuoka Japan
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