Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing
Implantable cardioverter-defibrillators (ICDs) serve to reduce the risk of sudden death; however, ICD shocks worsen patient prognosis. Therefore, attempts have been made to terminate life-threatening arrhythmias without ICD shocks. A 71-year-old man with non-ischemic cardiomyopathy, who previously u...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Indian Pacing and Electrophysiology Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0972629222000018 |
| _version_ | 1819349636375117824 |
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| author | Hikaru Hagiwara Masaya Watanabe Rui Kamada Toshihisa Anzai |
| author_facet | Hikaru Hagiwara Masaya Watanabe Rui Kamada Toshihisa Anzai |
| author_sort | Hikaru Hagiwara |
| collection | DOAJ |
| description | Implantable cardioverter-defibrillators (ICDs) serve to reduce the risk of sudden death; however, ICD shocks worsen patient prognosis. Therefore, attempts have been made to terminate life-threatening arrhythmias without ICD shocks. A 71-year-old man with non-ischemic cardiomyopathy, who previously underwent cardiac resynchronization therapy-defibrillator (CRT-D) placement, was hospitalized for ventricular tachyarrhythmia (VT) that was refractory to traditional anti-tachycardia pacing (ATP). Endocardial and epicardial ablation failed to prevent VT recurrence. Since the CRT-D battery was exhausted, it was replaced with a Cobalt™ XT HF CRT-D (Medtronic, Minneapolis, MN, USA), and the intrinsic ATP (iATP) algorithm was employed. Although VT recurred frequently, recurrent VTs were terminated by the iATP, which created a conduction block in the circuit without VT acceleration or shock. This is the first reported case wherein an iATP algorithm was effective against VT resistant to traditional anti-tachycardia pacing. This novel ATP algorithm has the potential to terminate refractory VT without ICD shocks and provide a better prognosis. |
| first_indexed | 2024-12-24T19:03:40Z |
| format | Article |
| id | doaj.art-d0955083b89f44a39e86afecaea73e69 |
| institution | Directory Open Access Journal |
| issn | 0972-6292 |
| language | English |
| last_indexed | 2024-12-24T19:03:40Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Indian Pacing and Electrophysiology Journal |
| spelling | doaj.art-d0955083b89f44a39e86afecaea73e692022-12-21T16:43:10ZengElsevierIndian Pacing and Electrophysiology Journal0972-62922022-03-0122299102Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacingHikaru Hagiwara0Masaya Watanabe1Rui Kamada2Toshihisa Anzai3Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, JapanCorresponding author. Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, 060-8638, Japan.; Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, JapanDepartment of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, JapanDepartment of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, JapanImplantable cardioverter-defibrillators (ICDs) serve to reduce the risk of sudden death; however, ICD shocks worsen patient prognosis. Therefore, attempts have been made to terminate life-threatening arrhythmias without ICD shocks. A 71-year-old man with non-ischemic cardiomyopathy, who previously underwent cardiac resynchronization therapy-defibrillator (CRT-D) placement, was hospitalized for ventricular tachyarrhythmia (VT) that was refractory to traditional anti-tachycardia pacing (ATP). Endocardial and epicardial ablation failed to prevent VT recurrence. Since the CRT-D battery was exhausted, it was replaced with a Cobalt™ XT HF CRT-D (Medtronic, Minneapolis, MN, USA), and the intrinsic ATP (iATP) algorithm was employed. Although VT recurred frequently, recurrent VTs were terminated by the iATP, which created a conduction block in the circuit without VT acceleration or shock. This is the first reported case wherein an iATP algorithm was effective against VT resistant to traditional anti-tachycardia pacing. This novel ATP algorithm has the potential to terminate refractory VT without ICD shocks and provide a better prognosis.http://www.sciencedirect.com/science/article/pii/S0972629222000018Intrinsic anti-tachycardia pacingImplantable cardioverter-defibrillatorVentricular tachyarrhythmia |
| spellingShingle | Hikaru Hagiwara Masaya Watanabe Rui Kamada Toshihisa Anzai Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing Indian Pacing and Electrophysiology Journal Intrinsic anti-tachycardia pacing Implantable cardioverter-defibrillator Ventricular tachyarrhythmia |
| title | Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing |
| title_full | Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing |
| title_fullStr | Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing |
| title_full_unstemmed | Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing |
| title_short | Intrinsic anti-tachycardia pacing terminated ventricular tachycardia resistant to traditional anti-tachycardia pacing |
| title_sort | intrinsic anti tachycardia pacing terminated ventricular tachycardia resistant to traditional anti tachycardia pacing |
| topic | Intrinsic anti-tachycardia pacing Implantable cardioverter-defibrillator Ventricular tachyarrhythmia |
| url | http://www.sciencedirect.com/science/article/pii/S0972629222000018 |
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