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Li Y, Chen Y, Wang J, Xu J, Li R, Qiu Z, Jiang L, Shen F, Jiang S, Li B, Chu Y, He L, Pu L, Han X, Long X, Xue X, Tao J, Wu Y, Guo T, Yuan Y, Wang X, Wang J, Xu J, Zhao Y, Zhang Z, Hua W, Su Y, Tang B. Performance of Subcutaneous Implantable Cardioverter Defibrillator (S-ICD) in Chinese Population with Primary Prevention Indications: A Prospective Observational Cohort Study. Med Sci Monit 2024; 30:e942747. [PMID: 38400538 PMCID: PMC10900845 DOI: 10.12659/msm.942747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/20/2023] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND International studies have shown that use of a subcutaneous implantable cardioverter defibrillator (S-ICD) could reduce lead-related complications while maintaining adequate defibrillation performance; however, data from the Chinese population or other Asian groups are limited. MATERIAL AND METHODS SCOPE is a prospective, multicenter, observational cohort study. Two hundred patients with primary prevention indication for sudden cardiac death (SCD), who are candidates for S-ICD, will be enrolled. From the same population, another 200 patients who are candidates for transvenous implantable cardioverter defibrillator (TV-ICD) will be enrolled after being matched for age, sex, SCD high-risk etiology (ischemic cardiomyopathy, and non-ischemic cardiomyopathy, ion channel disease, and other) and atrial fibrillation in a 1: 1 ratio with enrolled S-ICD patients. All the patients will be followed for 18 months under standard of care. RESULTS The primary endpoint is proportion of patients free from inappropriate shock (IAS) at 18 months in the S-ICD group. The lower 95% confidence bound of the proportion will be compared with a performance goal of 90.3%, which was derived from the previous meta-analysis. The comparisons between S-ICD and TV-ICD on IAS, appropriate shock, and complications will be used as secondary endpoints without formal assumptions. CONCLUSIONS This is the first prospective multicenter study focusing on the long-term performance of S-ICD in a Chinese population. By comparing with the data derived from international historical studies and a matched TV-ICD group, data from SCOPE will allow for the assessment of S-ICD in the Chinese population in a contemporary real-world implantation level and programming techniques, which will help us to further modify the device implantation and programming protocol in this specific population in the future.
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Affiliation(s)
- Yaodong Li
- Department of Cardiovascular, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, PR China
| | - Yangxin Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jingfeng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jian Xu
- Department of Cardiology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, PR China
| | - Ruogu Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai, PR China
| | - Zhaohui Qiu
- Department of Cardiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Lingyun Jiang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Farong Shen
- Department of Cardiology, Zhejiang Qiushi Cardiovascular Hospital, Hangzhou, Zhejiang, PR China
| | - Shubin Jiang
- Department of Cardiology, The Fourth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, PR China
| | - Bin Li
- Department of Cardiology, Meizhou People’s Hospital, Meizhou, Guangdong, PR China
| | - Yingjie Chu
- Department of Cardiology, Henan People’s Hospital, Zhengzhou, Henan, PR China
| | - Lang He
- Department of Cardiology, Zhejiang Greentown Cardiovascular Hospital, Hangzhou, Zhejiang, PR China
| | - Lijin Pu
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, PR China
| | - Xuebin Han
- Department of Cardiology, Shanxi Province Cardiovascular Hospital, Taiyuan, Shanxi, PR China
| | - Xianping Long
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, PR China
| | - Xiaolin Xue
- Department of Cardiology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - Jianhong Tao
- Department of Cardiology, Sichuan Provincial People’s Hospital, Chengdu, Sichuan, PR China (mainland)
| | - Yongquan Wu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, PR China
| | - Tao Guo
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, Yunnan, PR China
| | - Yiqiang Yuan
- Department of Cardiology, Henan Provincial Chest Hospital, Zhengzhou, Henan, PR China
| | - Xianqing Wang
- Department of Cardiology, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, PR China
| | - Jiang Wang
- Department of Cardiology, Xinqiao Hospital, Chongqing, PR China
| | - Jing Xu
- Department of Cardiology, Tianjing Chest Hospital, Tianjin, PR China
| | - Yujie Zhao
- Department of Cardiology, Zhengzhou Cardiovascular Hospital, Zhengzhou, Henan, PR China
| | - Zhihui Zhang
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, PR China
| | - Wei Hua
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - Yangang Su
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Baopeng Tang
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, PR China
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Ghanta SN, Alotaibi B, Paydak H, Mounsey JP, Vallurupalli S, Devabhaktuni S. Inappropriate Subcutaneous Implantable Cardioverter-defibrillator Shocks-A Rare Case of Triple Counting. J Innov Card Rhythm Manag 2023; 14:5670-5674. [PMID: 38155720 PMCID: PMC10752427 DOI: 10.19102/icrm.2023.14121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/20/2023] [Indexed: 12/30/2023] Open
Abstract
Sudden cardiac death (SCD) caused by ventricular tachyarrhythmias is a significant contributor to cardiovascular deaths worldwide. Implantable cardioverter-defibrillators (ICDs) have shown efficacy in preventing and reducing mortality from SCD, but traditional transvenous ICDs have inherent challenges and drawbacks, such as lead fractures, lead-associated endocarditis, and lead failure. To address these issues, subcutaneous ICDs (S-ICDs) have been developed. S-ICDs lack pacing capacity but are a valid alternative for patients at high risk for infection or with difficult venous access. Pre-implantation screening can help prevent inappropriate device shocks. We present a case in which a patient received inappropriate S-ICD therapy, which was attributed to the triple counting of P-, R-, and T-waves in a patient with sinus rhythm. This is an unusual occurrence, and, to the best of our knowledge, there are only a limited number of case reports documenting inappropriate shocks due to the oversensing of P-waves and T-waves.
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Affiliation(s)
- Sai Nikhila Ghanta
- Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Bader Alotaibi
- Department of Medicine, Division of Cardiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Hakan Paydak
- Department of Medicine, Division of Cardiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - J. Paul Mounsey
- Department of Medicine, Division of Cardiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Srikanth Vallurupalli
- Department of Medicine, Division of Cardiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Subodh Devabhaktuni
- Department of Medicine, Division of Cardiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Sasaki S, Nishizaki K, Ishida Y, Toyama Y, Hamaura S, Tomita H. Usefulness of lead repositioning to improve subcutaneous electrocardiogram sensing in patients with arrhythmogenic right ventricular cardiomyopathy with subcutaneous implantable cardioverter-defibrillator. HeartRhythm Case Rep 2020; 6:786-790. [PMID: 33101956 PMCID: PMC7573477 DOI: 10.1016/j.hrcr.2020.07.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Shingo Sasaki
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kimitaka Nishizaki
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuji Ishida
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuichi Toyama
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shogo Hamaura
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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