1
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Kim SE, Chun KH, Oh J, Yu HT, Lee CJ, Kim TH, Pak HN, Lee MH, Joung B, Kang SM. Prediction of response to cardiac resynchronization therapy using cardiac magnetic resonance imaging in non-ischemic dilated cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
Cardiac resynchronization therapy (CRT) is a well-established therapy for symptomatic heart failure with reduced ejection fraction, but the response is different for individuals. Although many modalities have been conducted to predict CRT response, cardiac magnetic resonance (CMR) to predict CRT response has still insufficient usefulness.
Purpose
We determine whether the parameters including late gadolinium enhancement (LGE) identified in CMR could act as predictors of CRT response.
Methods
We retrospectively investigated 124 patients with non-ischemic dilated cardiomyopathy who underwent CMR before CRT implantation between Jan 2010 and July 2021 in a single center. CRT response was defined as a decrease in left ventricular end-systolic volume (LVESV) >15% on echocardiography after at least 3 months after CRT implantation.
Results
Among the study population (mean age 65.7±11.2 years, mean EF 25±6.5%, 50% of female), 85 (69%) patients were defined as CRT responder. The CRT responders had more left bundle branch block (LBBB) compared with non-responders [79 (92.9%) vs. 23 (59.0%), p<0.001], but there was a no difference of QRS duration (158.7 vs 165.0ms, p=0.054) between two groups. CMR analysis showed that there were no significant differences in the left ventricular (LV) chamber volume and LV ejection fraction between CRT-responder and non-responder. However, the right ventricular (RV) chamber volume was smaller (RV end-diastolic volume index, 86.3 vs 103.5 ml/m2, p=0.039; RV end-systolic volume index, 49.3 vs 68.5 ml/m2, p=0.013) and the RV ejection fraction (RVEF) was higher (46.9 vs 37.6%, p=0.002) in CRT-responders compared with non-responders. The LGE on CMR was more shown in non-responders than in CRT-responders [33 (84.6%) vs 45 (52.9%), p<0.001]. In CMR parameters, RV dysfunction (RVEF <45%) [Odds ratio (OR), 0.21 (0.05–0.93), p=0.045] and LGE [OR, 0.21 (0.05–0.58), p=0.01] were significantly associated with poor CRT response.
Conclusions
The presence of LGE and RV dysfunction on CMR were associated with poor CRT response in patients with non-ischemic dilated cardiomyopathy. Further investigation with CMR for pre-CRT patients is needed to support these results.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S E Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - K H Chun
- NHIS Ilsan Hospital, Cardiology , Goyang , Korea (Republic of)
| | - J Oh
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - C J Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - S M Kang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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2
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Jin M, Yang P, Yu H, Kim T, Lee H, Pak H, Lee M, Joung B. Association of usual walking with mortality in oldest old adults aged 85 years and older: a nationwide senior cohort study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
Current guidelines recommend moderate to vigorous intensity physical activity (MVPA) for health benefit in adults. However, it is difficult to meet the recommended minimum MVPA in “oldest old” aged over 85. Although walking is simple and easy exercise for oldest old, research on the association between walking and mortality in oldest old are lacking.
Purpose
To investigate the association between walking and the risk of all-cause and cardiovascular mortality among older adults aged 85 years and older.
Methods
7047 participants aged 85 or older underwent the Korean National Health Screening Program, including self-administered questionnaire for physical activity. Reported frequency per week of walking for at least 30 minutes increment was used to classify hours of walking per week. We computed multivariable-adjusted hazard ratios for walking and mutually adjusted for MVPA in relation to all-cause and cardiovascular mortality.
Results
The proportions of participants who engaged in walking, moderate- and vigorous-intensity physical activity were 42.5% (2996/7047), 14.7% (1037/7047) and 11.0% (773/7047), respectively. Only 7.6% (538/7047) of participants met the guidelines recommended minimum MVPA. Compared to inactive individuals, those who walked at least 1 hour per week had lower all-cause (HR 0.60 [95% CI, 0.50–0.74]) and cardiovascular mortality risk (HR 0.61 [95% CI, 0.42–0.89]). Walking 1 hour per week was still significant associated with reduction of risk for all-cause (HR 0.50 [95% CI, 0.40–0.61]) and cardiovascular mortality (HR 0.46 [95% CI, 0.30–0.70]) among participants who reported only walking without any MVPA.
Conclusions
1 hour a week of walking might be of benefit for all-cause and cardiovascular mortality in aged over 85 years, even without MVPA. Promoting walking may be a way to help oldest old avoid inactivity and encourage an active lifestyle for all-cause and cardiovascular mortality risk reduction.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Jin
- Inje University Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - P Yang
- Cha Bundang Medical Center , Seongnam , Korea (Republic of)
| | - H Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H Lee
- Inje University Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - H Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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3
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Kim MH, Hwang I, Park JW, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Blunted atrial reverse remodeling a year after catheter ablation for atrial fibrillation and their long-term rhythm outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/12/2022] Open
Abstract
Abstract
Background
Although active rhythm control by atrial fibrillation (AF) catheter ablation (AFCA) reduces left atrial (LA) dimension, blunted atrial reverse remodeling can be observed in patients with significant atrial myopathy. We explored the characteristics and long-term outcomes of AF patients who showed blunted atrial reverse remodeling despite no AF recurrence within a year after AFCA.
Methods
Among a total of 2,756 patients with AFCA, we included 1,685 patients (74.8% male, 60.2±10.1 years old, 54.5% paroxysmal AF) who underwent both baseline and 1-year follow-up echocardiogram, baseline LA>40mm, and did not recur within a year. We divided them into tertile groups (T1–T3) based on one-year percent change of LA dimension after propensity matching for age, sex, AF type, and baseline LA dimension. We also investigated the patients' genetic characteristics with blunted LA reverse remodeling (T1) using a genome-wide association study (GWAS).
Results
Patients with blunted LA reverse remodeling (T1, n=424) were independently associated with body mass index (OR 1.082 [1.010–1.160], p=0.025), LA peak pressure (OR 1.010 [1.002–1.019], p=0.019), LA wall thickness (OR 0.448 [0.252–0.789], p=0.006), LA voltage (OR 0.651 [0.463–0.907], p=0.012), and pericardial fat volume (OR 1.004 [1.001–1.008], p=0.014). Throughout 65.9±37.4 months of follow-up, the incidence of AF recurrence a year after the procedure was significantly higher in the T1 group than in T2 or T3 groups (Log-rank p<0.001). Among 894 patients with GWAS, ATXN1, XPO7, KRR1_PHLDA1, ZFHX3, and their polygenic risk score were associated with blunted LA reverse remodeling.
Conclusions
Patients with blunted LA reverse remodeling after AFCA were independently associated with low LA voltage, thin wall thickness, high LA pressure, and fat volume, and have a genetic background. Long-term clinical recurrence a year after AFCA was higher in this patient group with suspicious atrial myopathy.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health and WelfareNational Research Foundation of Korea
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Affiliation(s)
- M H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - I Hwang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J W Park
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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4
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Park Y, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Effects of early recurrence and extra-PV triggers on long-term recurrence after catheter ablation for atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Although early recurrence (ER) within 3 months after atrial fibrillation (AF) catheter ablation (AFCA) was recently reported to be a reliable predictor of late recurrence (LR), the mechanism is not clear.
Purpose
We explored the characteristics of patients with ER and compared the long-term late recurrence (LR) pattern depending on the existence of extra-pulmonary vein trigger (ExPV-trigger).
Methods
Among 3643 patients who underwent de novo AFCA, we included 1249 patients (59.2±11.0 years old, 31.3% persistent AF) who underwent isoproterenol provocation and regular follow-up over three years after AFCA. We evaluated the risk factors for ER and compared the patients with ER alone (10.1%), LR alone (16.6%), and ER+LR (15.9%), and the outcome of repeat procedure.
Results
Overall ER (ER alone and ER+LR) was independently associated with persistent AF (OR 1.58 [1.16–2.14], p=0.003), extra-PV triggers (OR 2.80 [1.90–4.13], p<0.001), and empirical extra-PV ablation (OR 1.54 [1.15–2.07], p=0.004). Overall LR (LR alone and ER+LR) risk was significantly higher in the ER with ExPV-trigger group than in ER without ExPV-trigger or no ER groups (Log-rank p<0.001). The rhythm outcome of the second procedure did not differ between ER+LR and LR alone groups (Log-rank p=0.160), but was worse in the ER+LR ExPV-trigger than in ER+LR without ExPV-trigger or LR alone groups (Log-rank p=0.005).
Conclusion
ER was independently associated with LR after de novo AFCA. ExPV-trigger played crucial roles in ER and LR after de novo AFCA and worse rhythm outcome after redo AFCA.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Park
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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5
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Kim D, Yu HT, Kwon OS, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Effect of the epicardial fat volume on the outcomes after a left atrial posterior wall isolation in addition to pulmonary vein isolation in patients with persistent atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
While the effect of a circumferential pulmonary vein isolation (CPVI) alone is unsatisfactory, that of an additional electrical posterior wall box isolation (POBI) is controversial in persistent atrial fibrillation (PeAF) patients. Increased epicardial adipose tissue (EAT) is associated with higher recurrence rates after AF catheter ablation (AFCA).
Purpose
We investigated the possible effects of a POBI on rhythm outcomes with varying EAT volumes.
Methods
We included 1,187 patients with PeAF undergoing a de novo AFCA (79.6% male, median age 60 years) into two groups including those receiving a CPVI alone (n=687) and those an additional POBI (n=500). The rhythm outcomes at two years post-AFCA were compared in subgroups stratified by the total EAT volume using propensity overlap weighting.
Results
A reduced total EAT volume was linearly associated with more favorable rhythm outcomes for an additional POBI treatment than for a CPVI alone (P for interaction=0.002). Among the patients with smaller EAT volumes (≤116.23 ml, the median value, n=594), an additional POBI was associated with a reduced AF recurrence risk as compared to a CPVI only (weighted hazard ratio [HR] 0.74, 95% confidence interval [CI] 0.56–0.99; weighted log-rank P=0.039). In contrast, among the remaining 593 patients with greater EAT volumes (>116.2 3mL), there was no difference in the AF recurrence risk between an additional POBI and CPVI alone (weighted HR 1.13, 95% CI 0.84–1.52; weighted log-rank P=0.410). Among 185 patients with a repeat ablation, the POBI reconnection rate tended to be higher in the large EAT group (75.0%) than small EAT group (55.4%, P=0.060).
Conclusion
While PeAF patients with a smaller EAT volume averted AF recurrence by an additional POBI after the CPVI, no benefit of the POBI was observed in those with a greater EAT volume. The EAT volume might identify AF patients likely to benefit from linear ablation in addition to the CPVI.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Ministry of Science, ICT & Future Planning (MSIP)Korean Ministry of Health and Welfare
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Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - O S Kwon
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
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6
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Yang PS, Kim DH, Jang E, Yu HT, Kim TH, Pak HN, Lee MH, Sung JH, Joung B. Comparative effectiveness of early rhythm control versus rate control for cardiovascular outcomes according to sex in patients with atrial fibrillation. Europace 2022. [DOI: 10.1093/europace/euac053.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health & Welfare, Republic of Korea
Background
Rhythm control is associated with better cardiovascular outcomes than usual care among patients recently diagnosed with atrial fibrillation (AF). However, there are limited data on the outcomes of AF ablation according to sex. The purpose of this study was to evaluate gender differences in the effects of early rhythm control compared to rate control on the primary composite outcome of cardiovascular death, ischaemic stroke, hospitalisation for heart failure (HF), or myocardial infarction.
Methods
We conducted a retrospective population-based cohort study including 22635 patients with AF newly treated with rhythm control (antiarrhythmic drugs or ablation) or rate control in 2011-2015 from the Korean National Health Insurance Service database. Propensity overlap weighting was used.
Results
Among patients with early AF treatment (initiated within 1 year since diagnosis), compared with rate control, rhythm control was associated with a similar lower risk of the primary composite outcome both women (weighted incidence rate per 100 person-years: 8.68 in rhythm control vs. 10.3 in rate control; hazard ratio [HR] 0.79, 95% confidence interval [CI] 0.69 to 0.90; P<0.001) and men (weighted incidence rate per 100 person-years: 6.33 in rhythm control vs. 8.32 in rate control; HR 0.77, 95% CI 0.67 to 0.88; P<0.001). However, the effective initiation time for rhythm control therapy was within 6 and 11 months after AF diagnosis in female and male patients, respectively. Moreover, the effective times for other outcomes were different between genders (hospitalization for HF; female within 2 months, male within 9 months/ ischemic stroke; female within 11 months, male immediately).
Conclusions
Early initiation of rhythm control was associated with a lower risk of primary outcome in both genders. However, the effective rhythm control treatment initiation time for primary outcome, stroke and HF-related admission was different in both genders. For rhythm control treatment to be effective, women should start treatment earlier than men.
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Affiliation(s)
- PS Yang
- CHA University, Seongnam, Korea (Republic of)
| | - DH Kim
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - E Jang
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - JH Sung
- CHA University, Seongnam, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
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7
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Yu G, Kim TH, Yu HT, Joung BY, Pak HN, Lee MH. Learning curve of left bundle branch area pacing with standard stylet-driven pacing leads: a single center prospective observational study in Korea. Europace 2022. [DOI: 10.1093/europace/euac053.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Although cardiac pacing is an essential therapy for bradycardia, conventional right ventricular pacing (CRVP) can cause electrical-mechanical dyssynchrony. Left Bundle Branch Area Pacing (LBBAP) is a new conduction system pacing strategy that includes a normal conduction system and therefore maintains synchronous ventricular contraction. Most of the experience with LBBAP is done in a lumen-less lead with fixed helix design, and this device is not available in sometimes.
Purpose
This study aimed to evaluate the learning curve of LBBAP using standard stylet-driven lead with extendable helix design.
Methods
This study enrolled patients who underwent permanent cardiac pacemaker implantation at a University Hospital in South Korea from December 2020 to October 2021. LBBAP was performed with a 5.6Fr stylet-driven pacing lead with an extendable helix. The learning curve was assessed by analyzing fluoroscopy time and procedure time.
Results
In 65 patients who underwent LBBAP during the observation period, mean fluoroscopy time and procedural time were 17.1 ± 17.2 minutes and 64.2 ± 33.5 minutes, respectively in this study. The learning curve for achieving LBBAP appears to plateau after around 24th case with a progressive reduction in procedure time. This is a significantly shorter period of time when compared to the previously reported learning curves of his bundle pacing (30-50cases), previously developed conduction system pacing strategy.
Conclusion
During initial experience with LBBAP, fluoroscopy and procedural time continue to improve with operator experience. For physicians who are experienced at cardiac pacemaker implantation, the steepest part of the learning curve of LBBAP appears to be over the first 20-25 cases.
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Affiliation(s)
- G Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University, Seoul, Korea (Republic of)
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8
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Hwang T, Yoon M, Kim M, Kim I, Yu H, Kim T, Uhm J, Kim J, Joung B, Lee M, Pak H. Clinical and electrophysiological characteristics of extra-pulmonary vein triggers in patients who underwent catheter ablation for atrial fibrillation. Europace 2021. [DOI: 10.1093/europace/euab116.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Extra-pulmonary vein (PV) triggers play significant roles in atrial fibrillation (AF) recurrence after AF catheter ablation (AFCA).
Purpose
We explore the clinical and electrophysiological characteristics of extra-PV triggers in de novo and repeat-AFCA procedure.
Methods
We included 2,151 patients who had de novo AFCA and 319 repeat AFCA (female 28.0%, 59.1 ± 10.8 years old, paroxysmal AF 65.1%) those underwent post-procedural isoproterenol (ISO) provocation tests. We analysed the clinical, electrophysiological, and procedure-related factors associated with extra-PV triggers.
Results
Extra-PV triggers were documented in 11.9% (1.19 ± 0.42 foci) after de novo-AFCA and 27.0% (1.37 ± 0.65 foci) after repeat-AFCA (p = 0.004). LA volume index (OR 1.02 [1.01-1.03], p = 0.004), history of vascular disease (OR 0.55[0.31-0.91], p = 0.028) and Lead I amplitude of electrocardiogram (OR <0.01 [<0.01-0.62], p = 0.032) were independently associated with the existence of extra-PV triggers in de-novo procedure. Women (OR 1.84 [1.03-3.25], p = 0.037) and LA appendage volume (OR 1.04 [1.01-1.07] p = 0.027) were independently associated with extra-PV triggers during the redo-mapping procedure. Septum (28.4%), coronary sinus (24.0%), and superior vena cava (19.6%) were common extra-PV foci, and septal foci were more commonly found in repeat mapping (38.4% vs. 25.0%, p = 0.025). Among 65 patients who showed extra-PV at the repeat procedures, 19 (29.2%) matched with previous focal or empirical extra-PV ablation sites and 9 (13.8%) were multiple or unmappable sites. AF recurrence rates were significantly higher in both patients with extra-PV triggers after de novo procedures (Log-rank P <0.001; HR 1.93 [1.58-2.36], p= <0.001) and repeat procedures (Log-rank P <0.001, HR 1.87 [1.29-2.70], p= <0.001).
Conclusion
ISO provoked extra-PV triggers commonly found in AF patients with significant remodelling and previous empirical or focal extra-PV ablations. Existence of extra-PV triggers were independently associated with poorer rhythm outcome after both de novo and repeat AFCA. Denovo AF ablation outcome OverallExtra-PV triggers (-)Extra-PV triggers (+)p-value(n = 2151)(n = 1895)(n = 256)Age, yrs58.98 ± 10.9558.73 ± 11.0360.76 ± 10.200.006Male, (%)1550 ( 72.1)1389 ( 73.3)161 ( 62.9)0.001Follow up duration, month50.30 (37.71)51.65 (37.95)40.71 (34.58)<0.001Early recurrence (%)579 ( 27.8)455 ( 24.9)124 ( 48.4)<0.001Clinical recurrence (%)699 ( 33.6)584 ( 32.0)115 ( 44.9)<0.001Abstract Figure. AF free survival according to Extra PVT
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Affiliation(s)
- T Hwang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M Yoon
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - I Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - T Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
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9
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Park Y, Yu H, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Antiarrhythmic drug responders among patients with recurrent atrial fibrillation after catheter ablation. Europace 2021. [DOI: 10.1093/europace/euab116.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): The Ministry of Health and Welfare The National Research Foundation of Korea (NRF)
Backgroud
Sinus rhythm (SR) can be maintained with antiarrhythmic drugs (AADs) in a considerable number of patients with recurrent atrial fibrillation (AF) after AF catheter ablation (AFCA).
Purpose
We explored the characteristics and long-term outcomes of patients who maintained clinically acceptable rhythm control with AADs for 2 years.
Methods
Among 2,935 consecutive AAD-resistant patients who underwent a de novo AFCA, we included 512 recurrent patients (73.0% men, 59.2 ± 10.5 years old, 56.4% paroxysmal AF) who were followed up for over 2 years under AAD medications.
Results
In total, 218 patients remained in SR (AAD-responders[2-yrs], 42.6%) and 294 had recurrent AF among whom, 162 underwent repeat procedures (redo-AFCA[AAD failure-2-yrs]). We also compared the AAD-responders[2-yrs] with 40 patients who underwent AFCA before AADs (redo-AFCA[Before AAD]). AAD-responders[2-yrs] were independently associated with an old age (odds ratio [OR] 1.02 [1.00-1.04] p = 0.037), paroxysmal AF (OR 1.51 [1.04-2.19] p = 0.003), and a delayed recurrence timing of > 18 months (OR 1.52 [1.04-2.22] p = 0.032). When comparing the AAD-responder[2-yrs] and redo-AFCA[AAD failure-2-yrs] groups, the recurrence pattern showed a convergence after 7 years. The overall rhythm outcome was better in the redo-AFCA[Before AAD] group than AAD group (log rank p = 0.013).
Conclusion
Among the patients with recurrent AF after AFCA, over 40% remained in SR with AADs for 2 years, especially those who were old, those with a paroxysmal type, and those who had a delayed recurrence timing of >18 months after the de novo procedure. UnivariateMultivariateOdds Ratio(95% CI)p valueOdds Ratio(95% CI)p valueAge1.02 (1.00-1.04)0.0231.02 (1.00-1.04)0.037Female1.64 (1.11-2.42)0.0141.29 (0.85-1.95)0.236PAF1.58 (1.11-2.26)0.0121.51 (1.04-2.19)0.030Time to recurrence after the initial AFCA >18mo*1.59 (1.11-2.30)0.0131.52 (1.04-2.22)0.032LA dimension, mm0.99 (0.96-1.02)0.360LV ejection fraction, %1.03 (1.01-1.06)0.0111.02 (0.997-1.046)0.081Heart failure0.65 (0.34-1.24)0.192Hypertension1.18 (0.83-1.67)0.358Diabetes1.01 (0.65-1.71)0.844Stroke or TIA0.96 (0.56-1.66)0.879Vascular disease1.43 (0.88-2.31)0.151Logistic regression analysis for AAD responders Abstract Figure. K-M analysis of AF-free survival rate
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Affiliation(s)
- Y Park
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - JS Uhm
- Yonsei University, Seoul, Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - MH Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HN Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Hwang I, Park J, Kwon O, Lim B, Hong M, Kim M, Yu H, Kim T, Uhm J, Joung B, Lee M, Pak H. Computational modeling for antiarrhythmic drugs for atrial fibrillation according to the genotypes. Europace 2021. [DOI: 10.1093/europace/euab116.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This work was supported by a grant [HI19C0114] from the Ministry of Health and Welfare. Additionally, the work was funded by grants [NRF-2019R1C1C100907512], and [NRF-2020R1A2B01001695] from the Basic Science Research Program run by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (MSIP).
Background
The efficacy of antiarrhythmic drugs (AAD) can vary in patients with atrial fibrillation (AF) and the PITX2 gene affects the responsiveness of AADs. We explored the virtual AAD (V-AAD) responses between wild-type and PITX2+/- deficient AF conditions by realistic in-silico AF modeling.
Methods
We tested the V-AADs in AF modeling integrated with patients’ 3D-computed tomography and 3D-electroanatomical mapping, acquired in 25 patients (68% male, 59.8 ± 9.8 years old, 32.0% paroxysmal type). The ion currents for the PITX2+/- deficiency and each AAD (amiodarone, sotalol, dronedarone, flecainide, and propafenone) were defined based on previous publications.
Results
We compared the wild-type and PITX2+/- deficiency in terms of the action potential duration (APD90), conduction velocity (CV), maximal slope of restitution (Smax), and wave-dynamic parameters, such as the dominant frequency (DF), phase singularities (PS), and AF termination rates according to the V-AADs. The PITX2+/- deficient model exhibited a shorter APD90 (p < 0.001), a lower Smax (p < 0.001), mean DF (p = 0.012), PS number (p < 0.001), and a longer AF cycle length (AFCL, p = 0.011). Five V-AADs changed the electrophysiology in a dose dependent manner. AAD-induced AFCL lengthening (p < 0.001) and reductions in the CV (p = 0.033), peak DF (p < 0.001) and PS number (p < 0.001) were more significant in PITX2+/- deficient than wild-type AF. PITX2+/- deficient AF was easier to terminate with class IC AADs than the wild-type AF (p = 0.018).
Conclusions
The computational modeling-guided AAD test was feasible for evaluating the efficacy of multiple AADs in patients with AF. AF wave-dynamics and electrophysiological characteristics are different among the PITX2 deficient and the wild-type genotype models. BaselineChanges after AADClass ICClass IIIWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueAPD90, (ms)243.7 ± 33.8184.4 ± 15.5<0.00138.2 ± 37.343.4 ± 56.20.223275.9 ± 43.5219.0 ± 39.2<0.001284.9 ± 32.8233.8 ± 71.4<0.001CV, (m/s)0.78 ± 0.320.70 ± 0.210.347-0.15 ± 0.18-0.20 ± 0.260.0330.63 ± 0.320.53 ± 0.300.0270.60 ± 0.360.43 ± 0.33<0.001Mean Smax0.787 ± 0.280.531 ± 0.18<0.0010.005 ± 0.260.115 ± 0.24<0.0010.828 ± 0.310.694 ± 0.320.0030.768 ± 0.320.608 ± 0.27<0.001Mean AFCL, (ms)146.96 ± 24.61164.78 ± 22.730.01122.62 ± 24.5537.92 ± 32.72<0.001165.44 ± 36.96190.85 ± 35.61<0.001169.05 ± 25.26203.35 ± 34.78<0.001Peak DF, (Hz)10.68 ± 2.9711.82 ± 3.340.211-2.98 ± 4.94-5.46 ± 4.66<0.00110.01 ± 4.397.23 ± 4.20<0.0016.30 ± 4.325.80 ± 4.070.301Mean DF, (Hz)6.80 ± 0.886.22 ± 0.710.012-1.95 ± 2.44-2.20 ± 1.990.2065.75 ± 1.784.53 ± 2.00<0.0014.14 ± 2.393.69 ± 2.000.077PS Number, (N)101086 ± 9608814150 ± 24778<0.001-59322 ± 99288-7409 ± 27856<0.00150579 ± 6523611568 ± 21868<0.00132951 ± 558643524 ± 8302<0.001PS Life Span, (ms)109.36 ± 113.90102.24 ± 226.640.889-24.87 ± 72.06-41.38 ± 126.350.073103.36 ± 180.6868.05 ± 162.790.14871.91 ± 141.8655.99 ± 217.970.454Table. Effects of AADs in the Wild-type and PITX2+/- Deficiency groupAbstract Figure. Wild-type vs. PITX2+/- baseline model
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Affiliation(s)
- I Hwang
- Yonsei University, Seoul, Korea (Republic of)
| | - J Park
- Yonsei University, Seoul, Korea (Republic of)
| | - O Kwon
- Yonsei University, Seoul, Korea (Republic of)
| | - B Lim
- Yonsei University, Seoul, Korea (Republic of)
| | - M Hong
- Yonsei University, Seoul, Korea (Republic of)
| | - M Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - H Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - T Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - J Uhm
- Yonsei University, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University, Seoul, Korea (Republic of)
| | - M Lee
- Yonsei University, Seoul, Korea (Republic of)
| | - H Pak
- Yonsei University, Seoul, Korea (Republic of)
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11
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Kim D, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Malnutrition and risk of procedural complication in patients with atrial fibrillation undergoing catheter ablation. Europace 2021. [DOI: 10.1093/europace/euab116.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health and Welfare of Korea Ministry of Science, ICT & Future Planning of Korea
Background
Malnutrition is common in the elderly, even in developed countries, and increases mortality.
Purpose
To investigate the prevalence and prognostic value of malnutrition among patients with atrial fibrillation (AF) which is a type of metabolic disease.
Methods
We included 3,239 patients (age 58.5 ± 10.8 years, 73.2% male, 67.7% paroxysmal type) undergoing de novo AF catheter ablation (AFCA) between 2009 and 2020. Nutritional status was assessed using controlling nutritional status (CONUT) score. The associations between malnutrition and the risk of AFCA complications or long-term rhythm outcome were evaluated by multivariable logistic regression.
Results
Among 3,239 patients, 1,005 (31.0%) patients had malnutrition; 991 (30.6%) with mild (CONUT scores 2-4) and 14 (0.4%) with moderate-to-severe (CONUT scores ≥5) malnutrition. Overall complication rates after AFCA were 3.3% in normal nutrition, 4.2% in mild malnutrition, and 21.4% in moderate to severe malnutrition, respectively (P for trend = 0.031). Major complication rates were 1.9%, 2.6%, and 14.3% in normal nutrition, mild malnutrition, and moderate to severe malnutrition (P for trend = 0.042). After multivariable adjustment, moderate-to-severe malnutrition status was associated with increased risks of overall (OR 8.215 [2.199-30.691], P = 0.002) and major (OR 7.392 [1.568-34.837], P = 0.011) complications compared with normal nutrition. However, CONUT score did not affect the long-term rhythm outcome during the mean follow-up of 40 (interquartile range 18-74) months (log-rank P = 0.760).
Conclusion
Malnutrition is common in patients undergoing AFCA. Those with moderate-to-severe malnutrition status were at substantially higher risk of complications after AFCA. Abstract Figure. Overall and major complication rates
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Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - JS Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
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12
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Pak HN, Park JW, Yang SY, Kim M, Yu HT, Kim TH, Uhm JS, Joung BY, Lee MH. Sex differences in mapping and rhythm outcomes of a repeat atrial fibrillation ablation. Europace 2021. [DOI: 10.1093/europace/euab116.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
The risk of procedure-related complications and rhythm outcomes differ between men and women after atrial fibrillation catheter ablation (AFCA). We evaluated whether consistent sex differences existed in mapping and rhythm outcomes in repeat ablation procedures.
Methods
Among 3,282 patients in the registry, we analysed 443 consecutive patients (24.6% female, 58.5 ± 10.3 years old, 61.5% paroxysmal AF) who underwent a second AFCA. We compared the clinical factors, mapping, left atrial (LA) pressure, complications, and long-term clinical recurrences after propensity score matching.
Results
The LA volume index (43.1 ± 18.6 vs. 35.8 ± 11.6 ml/m2, p < 0.001) was higher, but LA dimension (40.0 ± 6.8 vs. 41.6 ± 6.3mm, p = 0.018), LA voltage (0.94 ± 0.55 vs. 1.20 ± 0.68 mV, p = 0.002), and pericardial fat volume (89.5 ± 43.1 vs. 122.1 ± 53.9 cm3, p < 0.001) lower in women with a repeat ablation than in their male counterparts. The pulmonary vein (PV) reconnections were lower (58.7% vs. 74.9%, p = 0.001), but the proportion of extra-PV triggers (27.5% vs. 17.0%, p = 0.026) and elevated LA pulse pressures (79.7% vs. 63.7%, p = 0.019) was significantly higher in women than men. There was no significant sex difference in the procedure-related complication rate (4.6% vs. 4.2%, p = 0.791). During a 31(8∼60) month median follow-up, clinical recurrences were significantly higher in women after both the de novo procedure (log rank p = 0.039, antiarrhythmic drug [AAD]-free log rank p < 0.001) and second procedure (log rank p = 0.006, AAD-free log rank p = 0.093). A female sex (HR 1.51 [1.06-2.15], p = 0.023), non-paroxysmal AF (HR 1.78 [1.30-2.34], p < 0.010), and extra-PV triggers (HR 1.88 [1.28-2.75], p = 0.001) were independently associated with clinical recurrences after repeat procedures.
Conclusions
During the repeat AFCA procedures, PV reconnections were lower in women than men, and the existence of extra-PV triggers and an LA pressure elevation was more significant, which resulted in poor rhythm outcomes.
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Affiliation(s)
- HN Pak
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JW Park
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - SY Yang
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - M Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JS Uhm
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University Health system, Seoul, Korea (Republic of)
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13
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Park JW, Kwon OS, Shim JM, Yu HT, Kim TH, Uhm JS, Kim JY, Choi JI, Joung BY, Lee MH, Kim YH, Pak HN. Artificial intelligence-predicted poor responders to catheter ablation for atrial fibrillation. Europace 2021. [DOI: 10.1093/europace/euab116.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Although atrial fibrillation (AF) catheter ablation is effective for rhythm control, in some patients it is hard to maintain sinus rhythm in spite of repeated AF catheter ablation (AFCA) procedures and anti-arrhythmic drugs (AADs). We explored the pre-procedural predictors for poor responders to AFCA and tested whether artificial intelligence (AI) assists the prediction of poor responders in the independent cohort by determining the invasive parameters.
Methods
Among 1,214 patients who underwent AFCA and regular rhythm follow-up for 56.2 ± 33.8 months (59 ± 11 years, 73.5% male, 68.6% paroxysmal AF), we differentiated 92 poor responders defined as those with sustained AF despite repeat AFCAs, AADs, or electrical cardioversion. Using the Youden index, we identified advanced LA remodeling with lower LA voltage under 1.109mV. AI model, which was derived from development cohort using medical record, was applied to predict LA voltage <1.109mV in the independent cohort (n = 634, poor responders = 24) using a grad-cam score.
Results
The patients with lower LA voltage under 1.109mV showed significantly poorer rhythm outcomes (Log-rank p < 0.001). We determined invasive parameter LA voltage by using the multiple variables (age, female sex, AF type, CHA2DS2VASc score, LA dimension, E/em, hemoglobin, PR interval) and achieved relatively good prediction power of AI for LA voltage <1.109mV (AUC = 0.734, sensitivity 0.729, specificity 0.643) in the test cohort. In the independent cohort, the AI model showed good discrimination power for poor responders (AUC 0.751, p < 0.001) by estimating LA voltage, which is an invasive variable. The patients with predicted lower LA voltage (grad-cam score <0) showed poorer rhythm outcome after active rhythm control (Log-rank p < 0.001)
Conclusions
The patients with advanced atrial remodeling with low LA voltage, which can be predicted by an AI, showed significantly higher recurrence of AF after AFCA with AADs or cardioversion. AI may assist to select these poor responder patients before the AFCA procedure. Abstract Figure.
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Affiliation(s)
- JW Park
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - OS Kwon
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JM Shim
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JS Uhm
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JY Kim
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - JI Choi
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University Health system, Seoul, Korea (Republic of)
| | - YH Kim
- Korea University, Cardiovascular Center, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University Health system, Seoul, Korea (Republic of)
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14
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Lee J, Kwon OS, Lee JS, Yu HT, Kim TH, Uhm JS, Joung BY, Lee MH, Pak HN. Left atrial wall stress and the outcome of catheter ablation for atrial fibrillation: artificial intelligence-based prediction of clinical outcome. Europace 2021. [DOI: 10.1093/europace/euab116.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background/Introduction: Left atrial (LA) wall stress (LAW-str) may contribute to the mechanism of atrial fibrillation (AF).
Purpose
We explored the clinical characteristics and the rhythm outcome of AF depending on LAW-str among the patients who underwent AF catheter ablation (AFCA). We also tested whether artificial intelligence (AI) properly estimate LAW-str without invasive parameters.
Methods
We included 2223 patients (72.8% male, 59.0 [52.0–67.0] years old, 28.7% with persistent AF [PeAF]) who underwent radiofrequency catheter ablation (RFCA). LAW-str was calculated by the Law of Laplace using LA diameter (echocardiogram), peak LA pressure, and mean LA wall thickness (computed tomography) measured by customized software. Based on the quartile (Q1–4) or AI-estimated values of LAW-str, we compared clinical characteristics and rhythm outcome.
Results
LAW-str was independently associated with PeAF (p < 0.001), diabetes (p = 0.012) and vascular disease (p = 0.002), body mass index (p < 0.001), E/Em (p < 0.001), and mean LA voltage (p < 0.001). During 26.0 (12.0–52.0) months follow-up, clinical recurrence of AF was significantly higher in the Q4 of LAW-str group (log rank p = 0.001). LAW-str was independently associated with clinical recurrence after AFCA (HR 1.001 [1.000–1.002], p = 0.013). AI-based model using non-invasive parameters predicted Q4 of LAW-str with area under the curve (AUC) 0.734, which was similar to logistic regression based predictive model using all data including invasive parameters (AUC 0.726). Patients in Q4 of LAW-str showed consistently worse rhythm outcome regardless of the type of AF, sex, or AI-based prediction (p = 0.039).
Conclusions
The LAW-str seems to be associated with rhythm outcome of AFCA and AI can predict this complex parameter with moderate accuracy. TableMultivariateβ (95% CI)PPersistent AF31.08 (21.77-40.39)<0.001Diabetes mellitus15.36 (3.35-27.38)0.012Vascular disease22.27 (8.4-36.14)0.002Body mass index2.91 (1.53-4.29)<0.001E/Em4.95 (3.87-6.02)<0.001Mean LA voltage-22.24 (-27.96–16.52)<0.001Linear regression analysis for clinical variables predictive of LA wall stress (10^3 dyn/cm2).Abstract Figure. AF recurrence by LAW-str, AI-prediction
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Affiliation(s)
- J Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - OS Kwon
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - JS Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HT Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - JS Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - BY Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - MH Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HN Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
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15
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Hwang T, Kim M, Yu H, Kim T, Uhm J, Joung B, Lee M, Pak H. Long-term outcomes of empirical extra-pulmonary vein linear ablation in patients with persistent atrial fibrillation. Europace 2021. [DOI: 10.1093/europace/euab116.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This work was supported by grants [HI18C0070] and [HI19C0114] from the Korea Health 21 R&D Project, Ministry of Health and Welfare, and a grant [NRF-2020R1A2B01001695] from the Basic Science Research Program run by the National Research Foundation of Korea (NRF).
Background
Although extra-pulmonary vein (PV) left atrial (LA) linear ablation has been performed during catheter ablation (CA) of persistent atrial fibrillation (PeAF), the long-term efficacy and safety of this procedure have not yet been verified.
Purpose
We investigated whether an anterior line (AL) and posterior box ablation (POBA) in addition to circumferential PV isolation (CPVI) improves the rhythm without worsening the LA function in PeAF patients.
Methods
We retrospectively compared the additional AL + POBA and CPVI alone groups in 604 patients with PeAF who underwent regular rhythm follow-ups (16.9%; males 79.3%, 58.5 ± 10.7 years of age) after propensity score matching. The primary endpoint was AF recurrence after single procedures and secondary endpoints were the cardioversion rate, response to anti arrhythmic drugs, LA changes, and re-conduction rates of the de-novo ablation lesion set.
Results
After a mean follow-up of 45.2 ± 33.6 months, the clinical recurrence rate did not significantly differ between the two groups (log-rank p = 0.554) despite longer procedure times in the AL + POBA group (p < 0.001). Atrial tachycardia recurrences (p = 0.001) and the cardioversion rates after ablation (p < 0.001) were higher in the AL + POBA group than CPVI group. AL + POBA was associated with better rhythm outcomes in patients with large anterior LA volume indices (p for interaction 0.037) and low mean LAA(left atrial appendage) voltages (p for interaction 0.019). In repeat procedures, the LA pulse pressure elevation was significant after the AL + POBA.
Conclusion
In patients with PeAF, an AL + POBA in addition to the CPVI did not improve the rhythm outcomes nor influence the long-term safety, and lead to more extended procedures. Procedure outcomes OverallAL + POBACPVIp-value(n = 604)(n = 302)(n = 302)Procedure time, min190.8 ± 62.6226.9 ± 49.4154.6 ± 52.8<0.001Ablation time, sec5079 ± 19566420 ± 13723738± 1475<0.001Overall complications24 (4.0)13 (4.3)11 (3.6)0.835Early recurrence, n (%)277 (45.9)129 (42.7)148 (49.0)0.142Recurrence type AT, n (% in early recur)77 (27.8)51 (39.5)26 (17.6)<0.001Clinical recurrence within 1-year, n(%)116 (19.2)52 (17.2)65 (21.5)0.256Recurrence type AT, n (% in clinical recur)60 (23.1)46 (30.7)14 (12.7)0.001Cardioversion, n (% in total recur/ % overall)105 (40.4/17.4)74 (49.3/24.5)31 (28.1/10.3)<0.001POBA, posterior box ablation; AL, anterior line; CPVI, circumferential pulmonary vein isolation; AT, atrial tachycardia;Abstract Figure. Long term ablation outcome
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Affiliation(s)
- T Hwang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - T Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Park JW, Yang PS, Yu HT, Kim TH, Jang ES, Pak HN, Lee MH, Joung BY. The reduction of body mass index and risk of incidence of cardiovascular events in the elderly population. Europace 2021. [DOI: 10.1093/europace/euab116.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Obesity is known to be risk factor for incidence of cardiovascular (CV) events. However, the association between the reduction of body mass index (BMI) and incidence of cardiovascular event is not well established in elderly Asian population.
Methods
From the National Health Insurance Service-Senior (≥60 years) cohort from 2002 to 2013, 13,038 participants over 75 years old without baseline comorbidities (mean age: 78.4 ± 3.2 years 5243 (40.2%) male) were included in this study. We measured the change of BMI from first to second visit for health check-up within mean 23.6 ± 5.8months of follow-up. We categorized the reduction of BMI as five group according to the amount of change in BMI in overall patients (group 1: BMI change <-10%, group 2: -10%≤BMI change<-3%, group 3: -3% ≤ BMI change < 3%, group 4: 3% ≤BMI change < 10%, group 5: 10% ≤BMI change). We investigated the influence of change in BMI on the incidence of new-onset AF, stroke, acute myocardial infarction (MI), and CV mortality
Results
In the overall patients, new-onset AF, stroke, acute MI, and CV death was occurred in the 494 patients (3.5%), 775 patients (5.9%), 16 patients (0.1%), and 458 patients (3.5%) respectively. The Kaplan-Meier curve showed significant cumulative incidence rate of CV death in group 1 (Log rank p < 0.001). The multivariate cox regression after adjusting for compound clinical covariates showed the risk of stroke (HR 1.43, 95% CI [1.09-1.89], p = 0.01) and CV death (HR 2.06, 95% CI [1.49-2.84] were significant higher in the group 1 as compared with group 3. In the high BMI (≥25) group, the risk of AF was significant higher in the group 5 as compared with group 3 (HR 2.38, 95% CI [1.02-5.54], p = 0.04). In contrast, the risk of stroke (HR 1.70, 95% CI [1.07-2.71], p = 0.02) and CV death (HR 3.27, 95% CI [1.66-6.41], p < 0.001) was significant higher in the group 1 than in group 3.
Conclusions
In the elderly Asian population over 75 years old, the reduction of body weight affected worse effect on the incidence of stroke and CV death in overall patient and high BMI (≥25) group. It needs careful consideration to reduce BMI in the elderly Asian population even with high BMI (≥25) for purpose of CV events.
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Affiliation(s)
- JW Park
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - PS Yang
- Bundang CHA General Hospital, Seongnam, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - ES Jang
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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17
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Yu HT, Yang PS, Jang E, Kim TH, Uhm JS, Kim JY, Pak HN, Lee MH, Joung B, Lip GYH. P4758Label adherence of non-vitamin K antagonist oral anticoagulants and clinical outcomes in patients with atrial fibrillation: A nationwide study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Dose adjustment of non-vitamin K antagonist oral anticoagulants (NOACs) is indicated in some patients with atrial fibrillation (AF), based on selected patient factors or concomitant medications.
Purpose
We assessed the frequency of label adherence of NOAC dosing among AF patients and the associations between off-label NOAC dosing and clinical outcomes in real-world clinical practice.
Methods
We evaluated 53,649 AF patients treated with a NOAC using Korean National Health Insurance Service database during the period from January 2013 to December 2016. NOAC doses were classified as either underdosed or overdosed, consistent with U.S. Food and Drug Administration labeling. Cox proportional hazards regression was performed to investigate the effectiveness and safety outcomes including stroke or systemic embolism, major bleeding, and all-cause mortality.
Results
Overall, 16,757 NOAC-treated patients (31.2%) were underdosed, 4,492 were overdosed (8.4%), and 32,400 (60.4%) were dosed appropriately according to drug labeling. Compared with patients with label adherence, those who were underdosed or overdosed were older (71±8 and 75±7 years of age vs. 70±9 years of age, respectively; p<0.001), more likely female (39% and 53% vs. 38%, respectively; p<0.001), and had higher CHA2DS2-VASc scores (4.6±1.7 and 5.3±1.7 vs. 4.5±1.8, respectively; p<0.001). NOAC overdosing was associated with increased risk for stroke or systemic embolism (5.76 vs. 4.03 events/100 patient-years, p<0.001), major bleeding (4.77 vs. 2.94 events/100 patient-years, p<0.001), and all-cause mortality (5.43 vs. 3.05 events/100 patient-years, p<0.001) compared with label-adherent use.
Figure 1
Conclusion
In routine clinical practice, a significant proportion (almost 2 in 5) of AF patients received NOAC doses inconsistent with drug labeling. NOAC overdosing is associated with increased risk for stroke or systemic embolism, major bleeding, and all-cause mortality in Asian patient with AF.
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Affiliation(s)
- H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - P S Yang
- CHA University, Seongnam, Korea (Republic of)
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - G Y H Lip
- University of Liverpool, Liverpool, United Kingdom
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18
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Uhm JS, Kim J, Jin MN, Kim IS, Bae HJ, Cho MS, Yu HT, Kim TH, Joung B, Pak HN, Nam GB, Choi KJ, Kim YH, Lee MH. P1012Radiofrequency catheter ablation of accessory pathways at the site of prior valve surgery. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
Radiofrequency catheter ablation (RFCA) for accessory pathways (APs) at the site of prior valve surgery remains challenging. We aimed to clarify the factors associated with successful RFCA for such APs.
Methods
Upon reviewing a RFCA registry and previous case reports, we included nine patients who underwent RFCA of APs at the site of prior valve surgery (total-VS group; age, 34.0 [24.5–45.0] years; men, 4/9) and 196 patients who underwent RFCA of APs with no history of valve surgery (no-VS group; age, 40.5 [23.0–54.0] years; men, 114/196). Electrophysiological features, procedural details, and outcomes were examined.
Results
AP exhibited decremental conduction in four of nine patients in the total-VS group. The number of RFCA attempts was significantly higher in the total-VS group than in the no-VS group (10.0 [4.5–14.5] vs 2.0 [1.0–3.0]; p<0.001). In four patients who underwent mitral valve surgery, successful RFCA was achieved using the transaortic approach, coronary sinus approach, or bipolar ablation. In three patients who underwent tricuspid valve surgery, successful RFCA was achieved using the above-prosthetics or trans-prosthetics approach. In two patients, RFCA failed. The trans-prosthetics approach and bipolar ablation technique were effective. The transaortic and coronary sinus approaches were occasionally effective. The transseptal approach was ineffective. Based on the success rate and accessibility, we suggest a stepwise approach to RFCA of APs at the site of prior mitral or tricuspid valve surgery (Figure).
Stepwise approach to AP at valve surgery
Conclusions
Successful RFCA of APs at the site of prior valve surgery can be achieved by detailed mapping of the areas both above and below the prosthetic valve, as well as by ensuring effective radiofrequency energy delivery using various catheter approaches and RFCA techniques.
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Affiliation(s)
- J S Uhm
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - M N Jin
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - I S Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H J Bae
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M S Cho
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - G B Nam
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - K J Choi
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - Y H Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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19
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Kim IS, Lee BK, Yang PS, Yu HT, Kim TH, Uhm JS, Pak HN, Lee MH, Kim JY, Joung B. P5660Clinical impact of polycythemia on cardiovascular outcome from the general population: a nationwide cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Although adverse effect of anemia had been reported, effect of polycythemia on cardiovascular outcome from the general population had not been revealed yet.
Methods
We included 451,107 subjects who received national health examinations from the Korean National Health Insurance Service-based National Sample Cohort from 2009–2013. Medical records were screened from January 2002 to investigate the subjects' disease-free baseline period. They were followed until December 2013. We divided male and female subjects into four categories each based on hemoglobin level (normal, moderate to severe and mild anemia, polycythemia) to assess each outcome.
Results
During 1,735,964 person·years, 12,107 major adverse cardiovascular and cerebrovascular events (MACCE), 862 incident acute myocardial infarction (MI), 5,850 incident ischemic stroke, and 2,430 incident atrial fibrillation (AF) were observed. Compared to normal hemoglobin range group, polycythemia group showed higher MACCE (HR=1.23 [1.12–1.35] in male, HR=1.79 [1.20–2.67] in female, each p<0.001), incident MI (HR=1.37 [1.05–1.79] in male, HR=3.46 [1.06–14.00] in female, each p<0.001), incident ischemic stroke (HR=1.27 [1.10–1.46] in male, HR=1.72 [1.02–2.91] in female, each p<0.001), and incident AF (HR=1.46 [1.21–1.74] in male, HR=2.13 [1.03–4.77] in female, each p<0.001). Each outcome was linearly increased with the increase of hemoglobin among subjects with polycythemia (p<0.001), and with the decrease of hemoglobin among subjects with anemia (each p<0.001, U-shaped relationship). These relationship was more profound in obese female younger than 60-year-old.
Conclusion
Not only anemia but also polycythemia were significantly associated with higher rate of MACCE including death, incident MI, ischemic stroke, and AF among the general population.
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Affiliation(s)
- I.-S Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - B K Lee
- Gangnam Severance Hospital, Cardiology Division, Seoul, Korea (Republic of)
| | - P S Yang
- Bundang CHA General Hospital, Cardiology Division, Seongnam, Korea (Republic of)
| | - H T Yu
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - J Y Kim
- Gangnam Severance Hospital, Cardiology Division, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
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20
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Uhm JS, Jin MN, Kim IS, Bae HJ, Yu HT, Kim TH, Kim JY, Joung B, Pak HN, Lee MH. P1875Nonspecific intraventricular conduction delay is associated with future occurrence of atrial fibrillation in patients with structurally normal heart and sinus rhythm. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
This study aimed to elucidate long-term prognosis of nonspecific intraventricular conduction delay (NIVCD) in patients with structurally normal heart.
Methods
We included 107,838 patients (age, 52.1±15.5 years; men, 46.8%) who underwent electrocardiography in outpatient clinics or medical checkup (model 1). NIVCD was defined as QRS duration ≥110 ms and incompatibility with bundle branch block. The patients with structurally normal heart and sinus rhythm were assigned to the NIVCD group and normal QRS group according to propensity score with matching variables of age, sex, hypertension, and diabetes (model 2), and additional PR interval (model 3). Baseline characteristics, electrocardiographic parameters, and clinical outcomes were compared in model 1, 2, and 3, respectively.
Results
In model 1, the frequencies of male and preexisting atrial fibrillation (AF) were significantly higher in the NIVCD group than in the normal QRS group. In model 2, sinus rate and PR interval were significantly slower and longer in the NIVCD group than in the normal QRS group. In model 3, cumulative incidence of AF was significantly higher in the NIVCD group than in the normal QRS group during follow-up of 8.8±2.9 years (Figure). NIVCD significantly increased risk of AF (hazard ratio, 2.571; 95% confidence interval, 1.074–6.156; p=0.034). NIVCD did not significantly increase risk of sick sinus syndrome, complete atrioventricular block, and heart failure.
Atrial fibrillation-free survival
Conclusions
NIVCD is associated with slow sinus rate and prolonged PR interval. NIVCD is an independent risk factor of AF in patients with structurally normal heart.
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Affiliation(s)
- J S Uhm
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M N Jin
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - I S Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H J Bae
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Y Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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21
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Kim D, Yang PS, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Sung JH, Pak HN, Lee MH, Lip GYH, Joung B. 208Effect of hypertension duration and systolic blood pressure on dementia in patients with atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is associated with a higher risk for cognitive impairment and dementia, with or without a history of clinical stroke. There are a paucity of data on the associations of hypertension duration and blood pressure (BP) level with risk of dementia in patients with AF.
Purpose
We examined associations of duration of hypertension and secondly, systolic blood pressure (SBP) levels with incidence of dementia among patients with AF.
Methods
We enrolled a total 196,388 patients aged ≥50 years who were newly diagnosed as AF and undergoing hypertension treatment from the Korean National Health Insurance Service database (2005–2016). Starting from AF diagnosis, participants were followed up until the date of dementia, death, or December 31, 2016. To incorporate the effect of BP level and hypertension duration changes over time on dementia incidence, we constructed time-updated multivariable Cox models in which BP levels and hypertension duration were updated at each participants' regular national health examination visits (at 0–7 years of follow-up). Similarly, age, BP medications, and health-related behaviors were included as time-varying covariates in these models.
Results
During 1,016,744 person-years of follow-up, there were 32,692 dementia events. A cubic spline curve using continuous hypertension duration measures suggested a linear association between increase of hypertension duration and dementia risk. One-year increase of hypertension duration increased the adjusted risk of dementia with a hazard ratio (HR) of 1.17 [95% confidence interval (CI) 1.13–1.22]. In patients with hypertension duration <6 years, SBP of ≥140 mmHg was significantly associated with higher dementia risk, compared to SBP of <130 mmHg (in patients with hypertension duration <3 years: adjusted HR 1.08, 95% CI 1.01–1.16; and in those with 3 ≤ hypertension duration <6 years: adjusted HR 1.13, 95% CI 1.07–1.20), whereas no significant association between SBP and dementia risk in those with hypertension duration ≥6 years.
SBP and dementia in different duration
Conclusion
In patients with AF, the increase of hypertension duration was strongly associated with increased risk of dementia. Uncontrolled SBP was also associated with higher dementia risk. But, this effect of SBP might be attenuated in patients with longer hypertension duration. These findings suggest more emphasis needed on BP control in AF patients with earlier phase of hypertension (duration <6 years).
Acknowledgement/Funding
The Korean Ministry of Education, Science and Technology (NRF-2017R1A2B3003303) and the Korean Ministry of Health & Welfare (HI16C0058, HI15C1200)
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Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - P S Yang
- CHA University, Seongnam, Korea (Republic of)
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J H Sung
- CHA University, Seongnam, Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - G Y H Lip
- University of Liverpool, Liverpool, United Kingdom
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
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22
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Kim IS, Yang PS, Yu HT, Kim TH, Uhm JS, Pak HN, Lee MH, Kim JY, Joung B. P5710Clinical applications of machine learning for prediction of incident atrial fibrillation from the general population: a nationwide cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
To evaluate the ability of machine learning algorithms to predict incident atrial fibrillation (AF) from the general population using health examination items.
Methods
We included 483,343 subjects who received national health examinations from the Korean National Health Insurance Service-based National Sample Cohort (NHIS-NSC). We trained deep neural network model (DNN) of a deep learning system and decision tree model (DT) of a machine learning system using clinical variables and health examination items (including age, sex, body mass index, history of heart failure, hypertension or diabetes, baseline creatinine, and smoking and alcohol intake habits) to predict incident AF using a training dataset of 341,771 subjects constructed from the NHIS-NSC database. The DNN and DT were validated using an independent test dataset of 141,572 remaining subjects. C-indices of DNN and DT for prediction of incident AF were compared with that of conventional logistic regression model.
Results
During 1,874,789 person·years (mean±standard-deviation age 47.7±14.4 years, 49.6% male), 3,282 subjects with incident AF were observed. In the validation dataset, 1,139 subjects with incident AF were observed. The c-indices of the DNN and DT for incident AF prediction were 0.828 [0.819–0.836] and 0.835 [0.825–0.844], and were significantly higher (p<0.01) than conventional logistic regression model (c-index=0.789 [0.784–0.794]).
Conclusions
Application of machine learning using simple clinical variables and health examination items was helpful to predict incident AF in the general population. Prospective study is warranted to construct an individualized precision medicine.
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Affiliation(s)
- I.-S Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - P S Yang
- Bundang CHA General Hospital, Cardiology Division, Seongnam, Korea (Republic of)
| | - H T Yu
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
| | - J Y Kim
- Gangnam Severance Hospital, Cardiology Division, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea (Republic of)
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23
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Kim D, Yang PS, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Sung JH, Pak HN, Lee MH, Lip GYH, Joung B. 64Risk of dementia in patients treated with non-vitamin k antagonist oral anticoagulant or warfarin for nonvalvular atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Evidence is accumulating that use of oral anticoagulants (OACs) decreases the risk of dementia in patients with atrial fibrillation (AF), but it is unclear if there is a difference between non-vitamin K antagonist oral anticoagulants (NOACs) and warfarin in protecting against dementia.
Purpose
To compare the risk of dementia between patients taking either NOAC or warfarin using a nationwide cohort data covering the entire Korean population.
Methods
Using the Korean national health insurance service database, 68,984 new OAC users with non-valvular AF aged ≥50 years and no prior diagnosis of dementia were identified during the period of 2013–2016 (39,687 NOAC users and 29,297 warfarin users). Starting from OAC initiation, participants were followed up until the date of dementia, death, or December 31, 2016. We compared the rates of dementia in 1:1 propensity score-matched cohorts of NOAC (n=18,925) and warfarin users (n=18,925).
Results
During the 52,259 person-years of follow-up, there were 2,750 dementia events. Use of NOAC was associated with significant lower risk of dementia [hazard ratio (HR) 0.75, 95% confidence interval (CI) 0.69–0.81], compared with warfarin. The risk reduction was prominent for vascular dementia (HR 0.60, 95% CI 0.52–0.71), whereas there was no significant difference in the risk of Alzheimer dementia (HR 0.92, 95% CI 0.83–1.02). Restricting the analyses to patients with no stroke diagnosis prior to OAC initiation (primary prevention) showed no significant difference between NOAC and warfarin in any types of dementia, but in the subgroup with prior stroke (secondary prevention), NOAC significantly reduced the risk of overall (HR 0.70, 95% CI 0.63–0.78) and vascular dementia (HR 0.59, 95% CI 0.49–0.69).
Subgroup analysis according to stroke Hx Patient N Overall dementia Alzheimer dementia Vascular dementia HR (95% CI) P for interaction HR (95% CI) P for interaction HR (95% CI) P for interaction Total 37,850 0.75 (0.69–0.81) 0.92 (0.83–1.02) 0.60 (0.52–0.71) Without prior stroke 24,773 0.90 (0.78–1.05) 0.948 0.98 (0.83–1.15) 0.235 0.85 (0.56–1.28) 0.863 With prior stroke 13,077 0.70 (0.63–0.78) 0.90 (0.79–1.03) 0.59 (0.49–0.69) CI, confidence interval; HR, hazard ratio.
KM curves of dementia incidence
Conclusion
In this propensity-weighted nationwide cohort of non-valvular AF patients, NOAC was associated with reduced risk of dementia, compared with warfarin. This association was the most pronounced for vascular dementia in patients with prior stroke.
Acknowledgement/Funding
The Korean Ministry of Education, Science and Technology (NRF-2017R1A2B3003303) and the Korean Ministry of Health & Welfare (HI16C0058, HI15C1200)
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Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - P S Yang
- CHA University, Seongnam, Korea (Republic of)
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - J H Sung
- CHA University, Seongnam, Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - G Y H Lip
- University of Liverpool, Liverpool, United Kingdom
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea (Republic of)
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24
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Joung B, Yang PS, Sung JH, Jang ES, Yu HT, Kim TH, Pak HN, Lee MH. P345Catheter ablation for atrial fibrillation is associated with lower incidence of stroke, major bleeding and death: data from Korean health registries. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Background
Compared with antiarrhythmic drug therapy, catheter ablation of AF reduces the number of AF episodes, prolongs the time in sinus rhythm, and improves quality of life. However, it is still unclear if catheter ablation for atrial fibrillation (AF) affects the prognosis or merely is a symptomatic treatment. Our objective was to compare long-term outcome regarding stroke, major bleeding and death in AF patients with and without ablation, and in relation to long-term exposure to anticoagulants.
Methods
We identified all 800,084 patients with a diagnosis of AF from 2006 to 2015 in the Korean national health insurance service database. During a 10-year period, 10,979 AF ablations were performed among 9,768 individuals. Propensity scores for the likelihood of AF ablation were obtained by logistic regression. Propensity score (PS) matching was used to construct two cohorts of equal size (n=9,768) with similar characteristics in 16 dimensions.
Results
Patients who had undergone catheter ablation were younger (57.2 vs. 65.6 years, P<0.001) and healthier (mean CHA2DS2-VASc scores 2.5±1.7 vs. 3.6±2.1, P<0.001) than other patients with AF. Mean follow-up was 5.5±3.1 years. After propensity score matching, in the ablated group, 472 patients suffered ischemic stroke/systemic embolism (SE) compared with 1,682 in the matched non-ablated (annual rates 2.92 vs. 1.10%, P<0.001). Major bleeding occurred in 439 and 1,219 patients in ablated and non-ablated (annual rates 2.07 vs. 1.01%, P<0.001). A total of 306 ablated and 1,439 non-ablated patients died (annual rates 2.31 vs. 0.69%, P<0.001). After multivariable adjustments, catheter ablation was associated with lower risk of ischemic stroke [hazard ratio (HR) 0.51, 95% confidence interval (CI) 0.38–0.67), lower risk of major bleeding (HR 0.65, 95% CI 0.57–0.75) and with lower mortality risk (HR 0.39, 95% CI 0.34–0.46). The reduction of stroke/SE and mortality was observed after AF ablation regardless thromboembolic risk. Major bleeding was reduced only among patients with CHA2DS2-VASc score ≥2 (HR 0.70, 95% CI 0.59–0.84).
Conclusion
We found a strong association between ablation and survival. Ablation may be associated with lower incidence of ischemic stroke and major bleeding in patients with AF. The reduction of stroke/SE and mortality was observed regardless thromboembolic risk after AF ablation. But the risk of major bleeding was reduced only in patients with high thromboembolic risk factors.
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Affiliation(s)
- B Joung
- Yonsei University, Seoul, Korea (Republic of)
| | - P S Yang
- CHA University, Cardiology, Seongnam, Korea (Republic of)
| | - J H Sung
- CHA University, Cardiology, Seongnam, Korea (Republic of)
| | - E S Jang
- Yonsei University, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University, Seoul, Korea (Republic of)
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25
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Yang PS, Sung JH, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Pak HN, Lee MH, Joung B. P1027The risk of dementia and catheter ablation for atrial fibrillation: a nationwide cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/14/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is associated with all forms of dementia, including Alzheimer's disease. Catheter ablation of AF reduces the number of AF episodes, prolongs the time in sinus rhythm, and improves quality of life. However, it is still unclear if catheter ablation for AF improve cognitive function and prevent dementia. Our objective was to compare long-term outcome regarding dementia and type of dementia in AF patients with and without ablation, and about long-term exposure to anticoagulants.
Methods
We identified all 801,701 patients with a diagnosis of AF from 2006 to 2015 in the Korean national health insurance service database. During ten years, 10,979 AF ablations were performed among 9,768 individuals. Propensity scores for the likelihood of AF ablation were obtained by logistic regression. Propensity score (PS) matching was used to construct two cohorts of equal size (n=9,768) with similar characteristics in 16 dimensions.
Results
Patients who had undergone catheter ablation were younger (57.2 vs. 65.6 years, P<0.001) and healthier (mean CHA2DS2-VASc scores 2.5±1.7 vs. 3.6±2.1, p<0.001) than other patients with AF. Mean follow-up was 5.5±3.1 years. After propensity score matching, in the ablated group, 184 patients suffered dementia compared with 650 in the matched non-ablated (annual rates 0.42 vs. 1.08%, P<0.001). While a total of 134 ablated and 379 non-ablated patients had Alzheimer disease (annual rates 0.31 vs. 0.62%, p<0.001), 40 ablated and 191 non-ablated patients had vascular disease (annual rates 0.09 vs. 0.31%, p<0.001). After multivariable adjustments, catheter ablation was associated with lower risk of dementia (hazard ratio [HR] 0.46, 95% confidence interval [CI] 0.37–0.58), lower risk of Alzheimer disease (HR 0.61, 95% CI 0.46–0.79) and lower risk of vascular dementia (HR 0.27, 95% CI 0.19–0.38). Although the reduction of dementia and Alzheimer disease was observed after AF ablation regardless of thromboembolic risk, vascular dementia was reduced only among patients with CHA2DS2-VASc score ≥2 (HR 0.29, 95% CI 0.20–0.42).
The risk of dementia, RFCA vs. no-RFCA Type Propensity score matched ablation group vs. no ablation group adjusted HR (95% CI) P-value Overall dementia 0.46 (0.37–0.58) <0.001 Alzheimer dementia 0.61 (0.46–0.79) <0.001 Vascular dementia 0.27 (0.19–0.38) <0.001
Conclusion
Ablation may be associated with a lower incidence of dementia and both type of dementia in patients with AF. This finding appears more pronounced in patients with high thromboembolic risk factors.
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Affiliation(s)
- P S Yang
- CHA University, Seongnam, Korea (Republic of)
| | - J H Sung
- CHA University, Seongnam, Korea (Republic of)
| | - E Jang
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - T H Kim
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - J S Uhm
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - J Y Kim
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - H N Pak
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - M H Lee
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University Health System, cardiology, Seoul, Korea (Republic of)
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Kim D, Yang PS, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Pak HN, Lee MH, Joung B, Lip G. P4795Dabigatran in real-world asian patients with atrial fibrillation with low body weight: nationwide cohort data covering the entire korean population. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4795] [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: 11/14/2022] Open
Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - P S Yang
- Bundang CHA General Hospital, Seongnam, Korea Republic of
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - G Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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Kim K, Yang P, Jang E, Yu HT, Kim T, Uhm J, Kim J, Pak H, Lee M, Joung B, Lip GYH. P5143The increased risk of stroke, bleeding and mortality with new-onset atrial fibrillation in critically ill patients: a nationwide cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5143] [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: 11/13/2022] Open
Affiliation(s)
- K Kim
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - P Yang
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - E Jang
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - H T Yu
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - T Kim
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - J Uhm
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - J Kim
- Gangnam Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - H Pak
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - M Lee
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - B Joung
- Severance Hospital, Department of Cardiology, Seoul, Korea Republic of
| | - G Y H Lip
- University of Birmingham, Department of Cardiology, Birmingham, United Kingdom
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Lee O, Kim K, Kim J, Kim YD, Pak H, Hong G, Chim CY, Uhm J, Cho I, Joung B, Yu C, Lee H, Kang W, Heo J, Jang Y. P3830Favorable neurological outcomes of left atrial appendage occlusion versus non-vitamin K antagonist oral anticoagulants after stroke in atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3830] [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: 11/14/2022] Open
Affiliation(s)
- O Lee
- Severance Hospital, Cardiology, Yongin, Korea Republic of
| | - K Kim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - J Kim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - Y D Kim
- Severance Hospital, Neurology, Seoul, Korea Republic of
| | - H Pak
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - G Hong
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - C Y Chim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - J Uhm
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - I Cho
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - B Joung
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - C Yu
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H Lee
- Sejong General Hospital, Cardiology, Seoul, Korea Republic of
| | - W Kang
- Gil Hospital, Cardiology, Incheon, Korea Republic of
| | - J Heo
- Severance Hospital, Neurology, Seoul, Korea Republic of
| | - Y Jang
- Severance Hospital, Cardiology, Seoul, Korea Republic of
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Yu HT, Kim TH, Uhm JS, Kim JY, Joung B, Lee MH, Pak HN. P1903How long the duration of atrial fibrillation is associated with poor rhythm outcome after catheter ablation? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1903] [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: 11/14/2022] Open
Affiliation(s)
- H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
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Baek YS, Yang PS, Kim TH, Uhm JS, Pak HN, Lee MH, Kwan J, Joung BY, Kim DH. P4791Different obesity paradox of ischemic stroke without and with atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4791] [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: 11/14/2022] Open
Affiliation(s)
- Y S Baek
- Inha University Hospital, cardiology, Incheon, Korea Republic of
| | - P S Yang
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - J Kwan
- Inha University Hospital, cardiology, Incheon, Korea Republic of
| | - B Y Joung
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - D H Kim
- Yonsei University College of Medicine, Seoul, Korea Republic of
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Kim IS, Yang PS, Kim TH, Uhm JS, Pak HN, Lee MH, Joung B. P2515Particulate matter air pollution and mortality in a general healthy population: a nationwide cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2515] [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: 11/14/2022] Open
Affiliation(s)
- I.-S Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - B Joung
- Yonsei University, Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
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32
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Kim D, Yang PS, Kim TH, Jang E, Yu HT, Uhm JS, Kim JY, Pak HN, Lee MH, Joung B, Lip G. 2181What is the ideal blood pressure threshold and target for the management of high blood pressure in patients with atrial fibrillation? Nationwide cohort data covering the entire korean population. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2181] [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: 11/14/2022] Open
Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - P S Yang
- Bundang CHA General Hospital, Seongnam, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - G Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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33
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Kim IS, Yang PS, Kim TH, Uhm JS, Pak HN, Lee MH, Joung B. 113Particulate matter air pollution and incident atrial fibrillation in a general healthy population: a nationwide cohort study. Europace 2018. [DOI: 10.1093/europace/euy015.035] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- I S Kim
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - B Joung
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
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Kim D, Yang PS, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Sung JH, Pak HN, Lee MH, Joung B, Lip GYH. P1195Current and future incidence and prevalence of atrial fibrillation in korea. Europace 2018. [DOI: 10.1093/europace/euy015.677] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J H Sung
- Bundang CHA General Hospital, Seongnam, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - GYH Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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35
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Yang PS, Kim TH, Uhm JS, Joung B, Kim MH, Pak HN. P1185Serum uric acid concentration and risk of atrial fibrillation: a Mendelian randomization analysis in Asian population. Europace 2018. [DOI: 10.1093/europace/euy015.669] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- P S Yang
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
| | - B Joung
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
| | - M H Kim
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University Health System, cardiology, Seoul, Korea Republic of
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36
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Yu HT, Yang PS, Kim TH, Uhm JS, Kim JY, Joung B, Lee MH, Pak HN. 524Poor rhythm outcome of catheter ablation for early onset atrial fibrillation in women: mechanistic insight. Europace 2018. [DOI: 10.1093/europace/euy015.291] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
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37
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Kim D, Yang PS, Jang E, Yu HT, Kim TH, Uhm JS, Kim JY, Pak HN, Lee MH, Sung JH, Joung B, Lip GYH. P1196Increasing trends in hospital-care burden of atrial fibrillation in korea, 2006 through 2015: implications for healthcare planning. Europace 2018. [DOI: 10.1093/europace/euy015.678] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J H Sung
- Bundang CHA General Hospital, Seongnam, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - GYH Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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Kim IS, Kim HJ, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. P385Non-vitamin k antagonist oral anticoagulants in high risk-subgroups with atrial fibrillation: systematic review and meta-analysis. Europace 2018. [DOI: 10.1093/europace/euy015.196] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- I-S Kim
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - H J Kim
- Korea University, Department of Preventive Medicine, Institute for Evidence-based Medicine, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - B Joung
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University , Department of Internal Medicine, Cardiology Division, Seoul, Korea Republic of
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Lim B, Hwang M, Song JS, Ryu AJ, Joung B, Shim EB, Ryu H, Pak HN. 1008Effectiveness of atrial fibrillation rotor ablation is dependent on conduction velocity: an in-silico 3-dimensional modeling study. Europace 2018. [DOI: 10.1093/europace/euy015.557] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- B Lim
- Yonsei University , Seoul, Korea Republic of
| | - M Hwang
- Yonsei University , Seoul, Korea Republic of
| | - J S Song
- Yonsei University , Seoul, Korea Republic of
| | - A J Ryu
- Kangwon National University Hospital, Chuncheon, Korea Republic of
| | - B Joung
- Yonsei University , Seoul, Korea Republic of
| | - E B Shim
- Kangwon National University Hospital, Chuncheon, Korea Republic of
| | - H Ryu
- NVIDIA, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University , Seoul, Korea Republic of
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Yu HT, Shin DG, Shim J, Nam GB, Yoo WW, Lee JH, Kim TH, Uhm JS, Joung B, Lee MH, Kim YH, Pak HN. P358Efficacy and safety of unilateral groin puncture with single trans-septal catheter ablation for paroxysmal atrial fibrillation: A multi-center prospective randomized study. Europace 2018. [DOI: 10.1093/europace/euy015.169] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - D G Shin
- GangNeung Asan Hospital, GangNeung, Korea Republic of
| | - J Shim
- Korea University Cardiovascular Center, Seoul, Korea Republic of
| | - G B Nam
- Asan Medical Center, Seoul, Korea Republic of
| | - W W Yoo
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J H Lee
- Asan Medical Center, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - Y H Kim
- Korea University Cardiovascular Center, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
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Yu HT, Yang PS, Hwang J, Ryu S, Jang E, Kim TH, Uhm JS, Sung JH, Kim JY, Pak HN, Lee MH, Joung B, Lip GYH. P378Influence of reimbursement of non-vitamin K antagonist oral anticoagulants on overall prescription rates of oral anticoagulation: A nationwide study using the Korean National Health Insurance Data. Europace 2018. [DOI: 10.1093/europace/euy015.189] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - P S Yang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J Hwang
- Daegu University, Department of Computer Science and Statistics, Gyeongsan, Korea Republic of
| | - S Ryu
- Daegu University, Department of Computer Science and Statistics, Gyeongsan, Korea Republic of
| | - E Jang
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - J H Sung
- CHA University, Seongnam, Korea Republic of
| | - J Y Kim
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Seoul, Korea Republic of
| | - GYH Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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Lim YM, Yang PS, Jang ES, Yu HT, Kim TH, Uhm JS, Sung JH, Kim JY, Pak HN, Lee MH, Joung B, Lip GYH. 1009Body mass index variability and long-term risk of new-onset atrial fibrillation in the general population: a korean nationwide cohort study. Europace 2018. [DOI: 10.1093/europace/euy015.558] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y M Lim
- SAM medical center, Anyang, Korea Republic of
| | - P S Yang
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - E S Jang
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - H T Yu
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - T H Kim
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - J H Sung
- CHA University, Seongnam, Korea Republic of
| | - J Y Kim
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - H N Pak
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - M H Lee
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - B Joung
- Yonsei Cardiovascular Center, Seoul, Korea Republic of
| | - GYH Lip
- University of Birmingham, Birmingham, United Kingdom
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Phillips K, Santoso T, Sanders P, Alison J, Chan JLK, Pak H, Chandavimol M, Ghamdi MAL, Stein K, Shanker A, Omar R. Percutaneous Left Atrial Appendage Closure with the WATCHMAN Device: 12 Month Outcomes from the WASP Asia-Pacific Registry. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Goirigolzarri Artaza J, Gallego Delgado M, Jaimes Castellanos C, Cavero Gibanel M, Pastrana Ledesma M, Alonso Pulpon L, Gonzalez Mirelis J, Al Ansi RZ, Sokolovic S, Cerin G, Szychta W, Popa BA, Botezatu D, Benea D, Manganiello S, Corlan A, Jabour A, Igual Munoz B, Osaca Asensi J, Andres La Huerta A, Maceira Gonzalez A, Estornell Erill J, Cano Perez O, Sancho-Tello M, Alonso Fernandez P, Sepulveda Sanchez P, Montero Argudo A, Palombo C, Morizzo C, Baluci M, Kozakova M, Panajotu A, Karady J, Szeplaki G, Horvath T, Tarnoki D, Jermendy A, Geller L, Merkely B, Maurovich-Horvat P, Moustafa S, Mookadam F, Youssef M, Zuhairy H, Connelly M, Prieur T, Alvarez N, Ashikhmin Y, Drapkina O, Boutsikou M, Demerouti E, Leontiadis E, Petrou E, Karatasakis G, Kozakova M, Morizzo C, Bianchi V, Marchi B, Federico G, Palombo C, Chatzistamatiou E, Moustakas G, Memo G, Konstantinidis D, Mpampatzeva Vagena I, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Goto M, Uejima T, Itatani K, Pedrizzetti G, Mada R, Daraban A, Duchenne J, Voigt J, Chiu DYY, Green D, Johnstone L, Sinha S, Kalra P, Abidin N, Sikora-Frac M, Zaborska B, Maciejewski P, Bednarz B, Budaj A, Nemes A, Sasi V, Gavaller H, Kalapos A, Domsik P, Katona A, Szucsborus T, Ungi T, Forster T, Ungi I, Pluchinotta F, Arcidiacono C, Saracino A, Carminati M, Bussadori C, Dahlslett T, Karlsen S, Grenne B, Sjoli B, Bendz B, Skulstad H, Smiseth O, Edvardsen T, Brunvand H, Vereckei A, Szelenyi Z, Szenasi G, Santoro C, Galderisi M, Niglio T, Santoro M, Stabile E, Rapacciuolo A, Spinelli L, De Simone G, Esposito G, Trimarco B, Hubert S, Jacquier A, Fromonot J, Resseguier C, Tessier A, Guieu R, Renard S, Haentjiens J, Lavoute C, Habib G, Menting ME, Koopman L, Mcghie J, Rebel B, Gnanam D, Helbing W, Van Den Bosch A, Roos-Hesselink J, Shiino K, Yamada A, Sugimoto K, Takada K, Takakuwa Y, Miyagi M, Iwase M, Ozaki Y, Hayashi T, Itatani K, Inuzuka R, Shindo T, Hirata Y, Shimizu N, Miyaji K, Henri C, Dulgheru R, Magne J, Kou S, Davin L, Nchimi A, Oury C, Pierard L, Lancellotti P, Kovalyova O, Honchar O, Tengku W, Ketaren A, Mingo Santos S, Monivas Palomero V, Restrepo Cordoba A, Rodriguez Gonzalez E, Goirigolzarri Artaza J, Sayago Silva I, Garcia Lunar I, Mitroi C, Cavero Gibanel M, Segovia Cubero J, Ryu S, Park J, Kim S, Choi J, Goh C, Byun Y, Choi J, Westholm C, Johnson J, Jernberg T, Winter R, Rio P, Moura Branco L, Galrinho A, Pinto Teixeira P, Viveiros Monteiro A, Portugal G, Pereira-Da-Silva T, Afonso Nogueira M, Abreu J, Cruz Ferreira R, Mazzone A, Botto N, Paradossi U, Chabane A, Francini M, Cerone E, Baroni M, Maffei S, Berti S, Ghattas A, Shantsila E, Griffiths H, Lip G, Galli E, Guirette Y, Daudin M, Auffret V, Mabo P, Donal E, Fabiani I, Conte L, Scatena C, Barletta V, Pratali S, De Martino A, Bortolotti U, Naccarato A, Di Bello V, Falanga G, Alati E, Di Giannuario G, Zito C, Cusma' Piccione M, Carerj S, Oreto G, Dattilo G, Alfieri O, La Canna G, Generati G, Bandera F, Pellegrino M, Alfonzetti E, Labate V, Guazzi M, Cengiz B, Sahin ST, Yurdakul S, Kahraman S, Bozkurt A, Aytekin S, Borges IP, Peixoto E, Peixoto R, Peixoto R, Marcolla V, Venkateshvaran A, Sola S, Dash PK, Thapa P, Manouras A, Winter R, Brodin L, Govind SC, Mizariene V, Verseckaite R, Bieseviciene M, Karaliute R, Jonkaitiene R, Vaskelyte J, Arzanauskiene R, Janenaite J, Jurkevicius R, Rosner S, Orban M, Nadjiri J, Lesevic H, Hadamitzky M, Sonne C, Manganaro R, Carerj S, Cusma-Piccione M, Caprino A, Boretti I, Todaro M, Falanga G, Oreto L, D'angelo M, Zito C, Le Tourneau T, Cueff C, Richardson M, Hossein-Foucher C, Fayad G, Roussel J, Trochu J, Vincentelli A, Cavalli G, Muraru D, Miglioranza M, Addetia K, Veronesi F, Cucchini U, Mihaila S, Tadic M, Lang R, Badano L, Polizzi V, Pino P, Luzi G, Bellavia D, Fiorilli R, Chialastri C, Madeo A, Malouf J, Buffa V, Musumeci F, Gripari P, Tamborini G, Bottari V, Maffessanti F, Carminati C, Muratori M, Vignati C, Bartorelli A, Alamanni F, Pepi M, Polymeros S, Dimopoulos A, Spargias K, Karatasakis G, Athanasopoulos G, Pavlides G, Dagres N, Vavouranakis E, Stefanadis C, Cokkinos D, Pradel S, Mohty D, Magne J, Darodes N, Lavergne D, Damy T, Beaufort C, Aboyans V, Jaccard A, Mzoughi K, Zairi I, Jabeur M, Ben Moussa F, Ben Chaabene A, Kamoun S, Mrabet K, Fennira S, Zargouni A, Kraiem S, Jovanova S, Arnaudova-Dezjulovic F, Correia CE, Cruz I, Marques N, Fernandes M, Bento D, Moreira D, Lopes L, Azevedo O, Keramida K, Kouris N, Kostopoulos V, Psarrou G, Giannaris V, Olympios C, Marketou M, Parthenakis F, Kalyva N, Pontikoglou C, Maragkoudakis S, Zacharis E, Patrianakos A, Roufas K, Papadaki H, Vardas P, Dominguez Rodriguez F, Monivas Palomero V, Mingo Santos S, Arribas Rivero B, Cuenca Parra S, Zegri Reiriz I, Vazquez Lopez-Ibor J, Garcia-Pavia P, Szulik M, Streb W, Wozniak A, Lenarczyk R, Sliwinska A, Kalarus Z, Kukulski T, Nemes A, Domsik P, Kalapos A, Forster T, Serra W, Lumetti F, Mozzani F, Del Sante G, Ariani A, Corros C, Colunga S, Garcia-Campos A, Diaz E, Martin M, Rodriguez-Suarez M, Leon V, Fidalgo A, Moris C, De La Hera J, Kylmala MM, Rosengard-Barlund M, Groop PH, Lommi J, Bruin De- Bon H, Bilt Van Der I, Wilde A, Brink Van Den R, Teske A, Rinkel G, Bouma B, Teixeira R, Monteiro R, Garcia J, Silva A, Graca M, Baptista R, Ribeiro M, Cardim N, Goncalves L, Duszanska A, Skoczylas I, Kukulski T, Polonski L, Kalarus Z, Choi JH, Park J, Ahn J, Lee J, Ryu S, Ahn J, Kim D, Lee H, Przewlocka-Kosmala M, Mlynarczyk J, Rojek A, Mysiak A, Kosmala W, Pellissier A, Larochelle E, Krsticevic L, Baron E, Le V, Roy A, Deragon A, Cote M, Garcia D, Tournoux F, Yiangou K, Azina C, Yiangou A, Zitti M, Ioannides M, Ricci F, Dipace G, Aquilani R, Radico F, Cicchitti V, Bianco F, Miniero E, Petrini F, De Caterina R, Gallina S, Jardim Prista Monteiro R, Teixeira R, Garcia J, Baptista R, Ribeiro M, Cardim N, Goncalves L, Chung H, Kim J, Joung B, Uhm J, Pak H, Lee M, Lee K, Ragab A, Abdelwahab A, Yazeed Y, El Naggar W, Spahiu K, Spahiu E, Doko A, Liesting C, Brugts J, Kofflard M, Kitzen J, Boersma E, Levin MD, Coppola C, Piscopo G, Rea D, Maurea C, Caronna A, Capasso I, Maurea N, Azevedo O, Tadeu I, Lourenco M, Portugues J, Pereira V, Lourenco A, Nesukay E, Kovalenko V, Cherniuk S, Danylenko O, Nemes A, Domsik P, Kalapos A, Lengyel C, Varkonyi T, Orosz A, Forster T, Castro M, Abecasis J, Dores H, Madeira S, Horta E, Ribeiras R, Canada M, Andrade M, Mendes M, Morosin M, Piazza R, Leonelli V, Leiballi E, Pecoraro R, Cinello M, Dell' Angela L, Cassin M, Sinagra G, Nicolosi G, Wierzbowska-Drabik K, Hamala P, Kasprzak J, O'driscoll J, Rossato C, Gargallo-Fernandez P, Araco M, Sharma S, Sharma R, Jakus N, Baricevic Z, Ljubas Macek J, Skoric B, Skorak I, Velagic V, Separovic Hanzevacki J, Milicic D, Cikes M, Deljanin Ilic M, Ilic S, Kocic G, Pavlovic R, Stoickov V, Ilic V, Nikolic L, Generati G, Bandera F, Pellegrino M, Alfonzetti E, Labate V, Guazzi M, Labate V, Bandera F, Generati G, Pellegrino M, Donghi V, Alfonzetti E, Guazzi M, Zakarkaite D, Kramena R, Aidietiene S, Janusauskas V, Rucinskas K, Samalavicius R, Norkiene I, Speciali G, Aidietis A, Kemaloglu Oz T, Ozpamuk Karadeniz F, Akyuz S, Unal Dayi S, Esen Zencirci A, Atasoy I, Osken A, Eren M, Fazendas PR, Caldeira D, Stuart B, Cruz I, Rocha Lopes L, Almeida AR, Sousa P, Joao I, Cotrim C, Pereira H, Fazendas PR, Caldeira D, Stuart B, Cruz I, Rocha Lopes L, Almeida AR, Joao I, Cotrim C, Pereira H, Sinem Cakal S, Elif Eroglu E, Baydar O, Beytullah Cakal B, Mehmet Vefik Yazicioglu M, Mustafa Bulut M, Cihan Dundar C, Kursat Tigen K, Birol Ozkan B, Ali Metin Esen A, Yagasaki H, Kawasaki M, Tanaka R, Minatoguchi S, Houle H, Warita S, Ono K, Noda T, Watanabe S, Minatoguchi S, Cho EJ, Park SJ, Lim HJ, Chang SA, Lee SC, Park SW, Cho EJ, Park SJ, Lim HJ, Chang SA, Lee SC, Park SW, Mornos C, Cozma D, Ionac A, Mornos A, Popescu I, Ionescu G, Pescariu S, Melzer L, Faeh-Gunz A, Seifert B, Attenhofer Jost CH, Storve S, Haugen B, Dalen H, Grue J, Samstad S, Torp H, Ferrarotti L, Maggi E, Piccinino C, Sola D, Pastore F, Marino P, Ranjbar S, Karvandi M, Hassantash S, Karvandi M, Ranjbar S, Tierens S, Remory I, Bala G, Gillis K, Hernot S, Droogmans S, Cosyns B, Lahoutte T, Tran N, Poelaert J, Al-Mallah M, Alsaileek A, Nour K, Celeng C, Horvath T, Kolossvary M, Karolyi M, Panajotu A, Kitslaar P, Merkely B, Maurovich Horvat P, Aguiar Rosa S, Ramos R, Marques H, Portugal G, Pereira Da Silva T, Rio P, Afonso Nogueira M, Viveiros Monteiro A, Figueiredo L, Cruz Ferreira R. Poster session 6. Eur Heart J Cardiovasc Imaging 2014; 15:ii235-ii264. [PMCID: PMC4453635 DOI: 10.1093/ehjci/jeu271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
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Feechan A, Jermakow AM, Ivancevic A, Godfrey D, Pak H, Panstruga R, Dry IB. Host cell entry of powdery mildew is correlated with endosomal transport of antagonistically acting VvPEN1 and VvMLO to the papilla. Mol Plant Microbe Interact 2013; 26:1138-50. [PMID: 23819806 DOI: 10.1094/mpmi-04-13-0091-r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Challenge by a nonadapted powdery mildew fungal pathogen leads to the formation of a local cell-wall apposition (papilla) beneath the point of attempted penetration. Several plasma membrane (PM) proteins with opposing roles in powdery mildew infection, including Arabidopsis thaliana PENETRATION1 (PEN1) and barley (Hordeum vulgare) MILDEW RESISTANCE LOCUS O (MLO), are localized to the site of powdery mildew attack. PEN1 contributes to penetration resistance to nonadapted powdery mildews, whereas MLO is a susceptibility factor required by adapted powdery mildew pathogens for host cell entry. Our previous studies have demonstrated that the vesicle and endosomal trafficking inhibitors, brefeldin A and wortmannin, have opposite effects on the penetration rates of adapted and nonadapted powdery mildews on grapevine. These findings prompted us to study the pathogen-induced intracellular trafficking of grapevine variants of MLO and PEN1. We first identified grapevine (Vitis vinifera) VvPEN1 and VvMLO orthologs that rescue Arabidopsis Atpen1 and Atmlo2 mlo6 mlo12 null mutants, respectively. By using endomembrane trafficking inhibitors in combination with fluorescence microscopy, we demonstrate that VvMLO3/VvMLO4 and VvPEN1 are co-trafficked together from the PM to the site of powdery mildew challenge. This focal accumulation of VvMLO3/VvMLO4 and VvPEN1 to the site of attack seems to be required for their opposing functions during powdery mildew attack, because their subcellular localization is correlated with the outcome of attempted powdery mildew penetration.
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Trindade-Filho A, Mendes C, Ferreira S, Oliveira S, Vasconcelos A, Maia F, Pak H, Paula K. DNA obtained from decomposed corpses cartilage: A comparison with skeleton muscle source. Forensic Science International: Genetics Supplement Series 2008. [DOI: 10.1016/j.fsigss.2007.10.210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pak HN, Kim JS, Shin SY, Lee HS, Choi JI, Lim HE, Hwang C, Kim YH. Is Empirical Four Pulmonary Vein Isolation Necessary for Focally Triggered Paroxysmal Atrial Fibrillation? Comparison of Selective Pulmonary Vein Isolation Versus Empirical Four Pulmonary Vein Isolation. J Atr Fibrillation 2008; 1:99. [PMID: 28496581 PMCID: PMC4955819 DOI: 10.4022/jafib.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2008] [Revised: 07/11/2008] [Accepted: 07/14/2008] [Indexed: 06/07/2023]
Affiliation(s)
- H N Pak
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - J S Kim
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - S Y Shin
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - H S Lee
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - J I Choi
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - H E Lim
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - C Hwang
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
| | - Y H Kim
- Andrea Corrado and Antonio Raviele "Dell'Angelo" Hospital of Mestre, Venezia, Italy
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Oliveira S, Trindade-Filho A, Mendes C, Paula K, Maia F, Pak H, Dalton G. Power of exclusion of 18 autossomic STR loci in a Brazilian Middle–West region population sample. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.ics.2005.09.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pak H, Teixeira F, Punjabi S, Nicholson M, Van Rij A. Small bowel obstruction in a young woman. Gut 2005; 54:927, 1050. [PMID: 15951535 PMCID: PMC1774627 DOI: 10.1136/gut.2004.058032] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
- H Pak
- Department of Surgery, Dunedin Public Hospital, New Zealand
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Nikzat H, Pak H, Fuse T, Hu Y, Ogyu K, Kobayashi N, Hasatani M. Characteristics of Pulverized Coal Burner Using a High-Oxygen Partial Pressure. Chem Eng Res Des 2004. [DOI: 10.1205/026387604772803106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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