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Kara M, Cetin EHO, Korkmaz A, Ozeke O, Cay S, Ozcan F, Aras D, Topaloglu S. Transient changes in QRS morphology during a narrow complex tachycardia: What is the mechanism? J Cardiovasc Electrophysiol 2022; 33:1320-1321. [PMID: 35524413 DOI: 10.1111/jce.15523] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 04/24/2022] [Accepted: 05/01/2022] [Indexed: 11/28/2022]
Abstract
The observation of electrograms and electrocardiograms recorded in sinus rhythm can offer important initial information about the mechanism of arrhythmia. Some patients may have both bundle branch aberrancy or a bystander pathway or multiple pathways, giving rise to varying degrees of QRS fusion. There is need to focus on any change in cycle length of the tachycardia and morphology of QRS during tachycardia. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Meryem Kara
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Elif Hande Ozcan Cetin
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ahmet Korkmaz
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ozcan Ozeke
- İstanbul Medipol University, Department of Cardiology, İstanbul, Turkey
| | - Serkan Cay
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Firat Ozcan
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Dursun Aras
- İstanbul Medipol University, Department of Cardiology, İstanbul, Turkey
| | - Serkan Topaloglu
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
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Tuncez A, Merovci I, Efe TH, Kara M, Deveci B, Cetin EHO, Korkmaz A, Ozeke O, Cay S, Ozcan F, Aras D, Topaloglu S. Transition from Two Wide to A Narrow QRS Complex Tachycardia: What is the mechanism of tachycardia and transition? J Cardiovasc Electrophysiol 2022; 33:1316-1319. [PMID: 35362173 DOI: 10.1111/jce.15479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
Spontaneous transition from one tachycardia to another tachycardia poses a challenge to the electrophysiologists and most likely occurs by multiple mechanisms. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Idriz Merovci
- University Clinical Center of Kosovo, Department of Cardiology, Prishtina, Kosovo, Turkey
| | - Tolga Han Efe
- University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Department of Cardiology, Ankara, Turkey
| | - Meryem Kara
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Bulent Deveci
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Elif Hande Ozcan Cetin
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ahmet Korkmaz
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ozcan Ozeke
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Serkan Cay
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Firat Ozcan
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Dursun Aras
- İstanbul Medipol University, Department of Cardiology, İstanbul, Turkey
| | - Serkan Topaloglu
- University of Health Sciences, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
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Turan T, Hidayet Ş, Tunçez A, Sertdemir AL, Deveci B, Celik IE, Kara M, Korkmaz A, Ozeke O, Cay S, Ozcan F, Aras D, Topaloglu S. An interesting response to His-synchronous ventricular stimulation: What is the mechanism of this supraventricular tachycardia?". J Cardiovasc Electrophysiol 2022; 33:1051-1054. [PMID: 35304936 DOI: 10.1111/jce.15450] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/28/2022]
Abstract
Inappropriate therapies are frequent in patients with ICDs and are associated with adverse outcomes, including increased mortality. Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common reentrant narrow complex tachycardia and a cause of inappropriate therapies in these patients. The differential diagnosis of narrow QRS complex tachycardia with ventriculoatrial (VA) dissociation or variable block to the atrium is a pivotal role to avoid inappropriate ICD implantation or then shock therapies. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Turhan Turan
- Health Sciences University, Ahi Evren Thoracic and Cardiovascular Surgery Training and Research Hospital, Trabzon, Turkey
| | - Şiho Hidayet
- Inonu University, Department of Cardiology, Malatya, Turkey
| | | | - Ahmet Lutfu Sertdemir
- Necmettin Erbakan University Meram Medical Faculty, Department of Cardiology, Konya, Turkey
| | - Bulent Deveci
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ibrahim Etem Celik
- Health Sciences University, Ankara Education and Research Hospital, Department of Cardiology; Ankara, Turkey
| | - Meryem Kara
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ahmet Korkmaz
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Ozcan Ozeke
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Serkan Cay
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Firat Ozcan
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
| | - Dursun Aras
- İstanbul Medipol University, Department of Cardiology, İstanbul, Turkey
| | - Serkan Topaloglu
- Health Sciences University, Ankara City Hospital, Department of Cardiology, Ankara, Turkey
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