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Iioka Y, Yamasaki H, Ishizu T. Leadless Pacemaker Implantation from the Jugular Vein Ipsilateral to the Dialysis Catheter: Last Resort for Patients with Limited Vascular Routes. Can J Cardiol 2024:S0828-282X(24)00206-X. [PMID: 38494120 DOI: 10.1016/j.cjca.2024.03.006] [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: 12/12/2023] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 03/19/2024] Open
Abstract
In patients with end-stage renal disease (ESRD), bloodstream infections and vascular access problems are frequently encountered, and patient management is critical if a cardiac implantable electronic device (CIED) infection develops in a pacing-dependent patient. Here, we describe a case of an ESRD patient with a device infection in whom a leadless pacemaker (LP) implantation from the jugular vein ipsilateral to the dialysis catheter (DC) was successful.
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Affiliation(s)
- Yuto Iioka
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
| | - Tomoko Ishizu
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
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Shinoda Y, Komatsu Y, Hattori M, Oda Y, Iioka Y, Hanaki Y, Yamasaki H, Igarashi M, Ishizu T, Nogami A. Optimal cardiac rhythm during substrate mapping in scar-related ventricular tachycardia: Significance of wavefront direction on identifying critical sites. Heart Rhythm 2024:S1547-5271(24)00232-7. [PMID: 38432425 DOI: 10.1016/j.hrthm.2024.02.060] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/11/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND A rotational activation pattern (RAP) around the localized line of a conduction block often correlates with sites specific to the critical zones of ventricular tachycardia (VT). The wavefront direction during substrate mapping affects manifestation of the RAP and line of block. OBJECTIVE The purpose of this study was to investigate the most optimal cardiac rhythm for identifying RAP and line of block in substrate mapping. METHODS We retrospectively evaluated 71 maps (median 3205 points/map) in 46 patients (65 ± 15 years; 33% with ischemic cardiomyopathy) who underwent high-density substrate mapping and ablation of scar-related VT. Appearance of a RAP during sinus, right ventricular (RV)-paced, left ventricular (LV)-paced, and biventricular-paced rhythms was investigated. RESULTS RAP was identified in 24 of 71 maps (34%) in the region where wavefronts from a single direction reached but not in the region where wavefronts from multiple directions centripetally collided. The probability of identifying the RAP depended on scar location; that is, anteroseptal and inferoseptal, inferior and apical, and basal lateral RAPs were likely to be identified during sinus/atrial, RV-paced, and LV-paced rhythms, respectively. In 13 patients, the RAP was not evident in the baseline map but became apparent during remapping in the other rhythm, in which the wavefront reached the site earlier within the entire activation time. CONCLUSION The optimal rhythm for substrate mapping depends on the spatial distribution of the area of interest. A paced rhythm with pacing sites near the scar may facilitate the identification of critical VT zones.
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Affiliation(s)
- Yasutoshi Shinoda
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Komatsu
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
| | - Masayuki Hattori
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuka Oda
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuto Iioka
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuichi Hanaki
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Miyako Igarashi
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tomoko Ishizu
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
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Harano Y, Masuda K, Inoue S, Iioka Y, Kowase S, Osada J, Yumoto K. Three-dimensional mapping discovered arrhythmic substrate missed in the initial diagnosis of idiopathic ventricular fibrillation. Clin Case Rep 2021; 9:1968-1972. [PMID: 33936624 PMCID: PMC8077416 DOI: 10.1002/ccr3.3918] [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: 08/08/2020] [Revised: 12/27/2020] [Accepted: 01/24/2021] [Indexed: 01/02/2023] Open
Abstract
During an initial diagnosis of IVF, an arrhythmic substrate may be missed for several reasons such as lack of information; thus, a careful follow-up is important. A three-dimensional mapping may identify a possible missed arrhythmic substrate in IVF.
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Affiliation(s)
| | - Keita Masuda
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
| | - Shunsuke Inoue
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
| | - Yuto Iioka
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
| | - Shinya Kowase
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
| | - Jun Osada
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
| | - Kazuhiko Yumoto
- Department of CardiologyYokohama Rosai HospitalYokohamaJapan
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Harano Y, Ishikawa Y, Hattori K, Ichinose M, Tomofuji Y, Okano H, Owada G, Kimura Y, Nanao T, Fujimoto J, Nishizawa H, Iioka Y, Osada J, Fujiwara M, Kita Y. A case of complete atrioventricular block in secondary hemophagocytic syndrome/hemophagocytic lymphohistiocytosis recovered by plasma exchange and cytokine absorbing therapy with AN69ST continuous hemodiafiltration. Immunol Med 2020; 43:171-178. [PMID: 32374660 DOI: 10.1080/25785826.2020.1761145] [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] [Indexed: 10/24/2022] Open
Abstract
We report a case of incipient systemic lupus erythematosus (SLE) that rapidly progressed to complete atrioventricular block (cAVB). A 20-year-old man was admitted with facial erythema, painless oral aphtha, polyarthritis, and myalgia of each extremity. On admission, he developed first-degree atrioventricular block, pericarditis, pleuritis, renal failure, hemophagocytic lymphohistiocytosis, neurophychiatric SLE (left cerebellar infarction), and Staphylococcus aureus bacteremia. He was subsequently diagnosed with SLE based on several positive findings on immunological tests (including positive for antinuclear antibody). Despite immediate glucocorticoid pulse therapy and plasma exchange (PE) along with antibiotic, he developed cAVB that required temporary pacing on day 2. Because it was thought that hypercytokinemia exacerbated pericarditis, which progressed to myocarditis and cAVB, we decided to PE and cytokine-adsorbing therapy with AN69ST-continuous hemodiafiltration (CHDF). Other than renal failure, his organ dysfunctions improved with the multidisciplinary therapy. CAVB improved and temporary pacing was no longer required on day 11. Even a first-degree atrioventricular block can rapidly progress to cAVB; therefore, strict attention to electrocardiogram is necessary in severe SLE cases. When presenting with organ dysfunctions caused by hypercytokinemia such as severe SLE cases or SLE with severe infection cases, use of the combination of PE and AN69ST-CHDF might be beneficial.
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Affiliation(s)
- Yoshihiro Harano
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yuichi Ishikawa
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Koto Hattori
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Mami Ichinose
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | | | - Hiroshi Okano
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Gen Owada
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yasuhiro Kimura
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Taikan Nanao
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Junichi Fujimoto
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Hideo Nishizawa
- Department of Central Intensive Care Medicine, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yuto Iioka
- Department of Cardiology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Jun Osada
- Department of Cardiology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Michio Fujiwara
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yasuhiko Kita
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
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Mizuiri S, Kobayashi M, Tanaka T, Hayashi I, Fushimi T, Iioka Y, Amagasaki Y, Hasegawa A. Response of glomerular filtration rate to protein load in diabetic patients varies according to severity of proteinuria. Contrib Nephrol 2015; 101:114-20. [PMID: 8467662 DOI: 10.1159/000422118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- S Mizuiri
- Department of Nephrology, Toho University, School of Medicine, Tokyo, Japan
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Abstract
Acute exacerbations of chronic obstructive pulmonary disease (COPD) accompanied with hypoxaemia may induce net protein catabolism and hypoxaemia could be an important trigger of a systemic catabolic response. The aim of this study was to examine the anabolic effects of recombinant human insulin-like growth factor-I (IGF-1) in rats exposed to hypoxia. Although acute hypoxia is usually accompanied with a decrease in dietary intake, the usual nitrogen intake was maintained in this study. Sprague-Dawley rats were maintained by continuous infusion of solution for total parenteral nutrition for 6 days. The animals were then randomly assigned to a normoxic (N) or a hypoxic (H) group. During the last 3 days of the experiment N and H rats were randomised to receive either IGF-I or vehicle. Exposure to hypoxia caused a decrease in body-weight gain accompanied by a negative nitrogen balance, which was mainly due to increased urinary nitrogen excretion. No effect of recombinant human IGF-I treatment on body weight was observed during exposure to hypoxia, although nitrogen balance normalised. The co-infusion of recombinant human insulin-like growth factor-1 and total parenteral nutrition has a significant net anabolic effect, as demonstrated by nitrogen retention and reduction in urine protein excretion observed in rats. Insulin-like growth factor-1 may help to ameliorate the protein catabolism observed under hypoxic conditions.
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Affiliation(s)
- Y Iioka
- Dept of Respirology, Graduate School of Medicine, Chiba University, Japan
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Iioka Y, Tsuchida A, Okubo K, Ogiso M, Ichimiya H, Saito K, Osaka Y, Sato S, Aoki T, Koyanagi Y. Metachronous triple cancers of the sigmoid colon, stomach, and esophagus: report of a case. Surg Today 2000; 30:368-71. [PMID: 10795871 DOI: 10.1007/s005950050602] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report herein an unusual case of metachronous triple cancers of the sigmoid colon, stomach, and esophagus. A 60-year-old man was initially admitted to our hospital for investigation of occult fecal blood. This was found to be caused by sigmoid colon cancer which was resected in July 1985 (T3, N0, M0; Stage II). A follow-up endoscopy performed in 1990 showed early gastric cancer, and a gastrectomy was performed in August 1990 (Tis, N0, M0; Stage 0). Another endoscopic examination performed as follow-up in 1993 revealed early cancer of the remnant stomach, and all the remnant stomach was surgically resected in March 1993 (Tis, N0, M0; Stage 0). He presented again in December 1996, complaining of discomfort in the chest which was found to be caused by cancer of the middle thoracic esophagus. Although surgery was considered necessary, the patient refused to undergo any further operations. Instead, radiation was administered from January 1997. An endoscopy after the completion of radiotherapy confirmed that the cancer had almost disappeared; however, it started to grow again from the beginning of 1998. He was hospitalized due to esophageal stenosis in April 1998, and died of carcinomatous cachexia in September of the same year.
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Affiliation(s)
- Y Iioka
- Department of Surgery, Makino Memorial Hospital, Yokohama, Japan
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Iioka Y, Kikuchi K, Tada H, Isogai S, Urayama T. Plasma soluble fibrin monomer complexes in nephrotic syndrome--with reference to hypoalbuminemia. TOHOKU J EXP MED 1984; 143:53-7. [PMID: 6464012 DOI: 10.1620/tjem.143.53] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Plasma soluble fibrin monomer complexes (SFMC) in 10 patients with nephrotic syndrome were measured to demonstrate the contribution of hypoalbuminemia to the SFMC formation. The levels of SFMC as well as plasma fibrinogen (Fbg) levels were significantly higher than those in control subjects. There was a negative correlation between the levels of SFMC and serum albumin, and also between Fbg and serum albumin. The increase in SFMC levels which indicates the intravascular generation of thrombin might be correlated to hypoalbuminemia in nephrotic syndrome with hypercoagulability.
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