Interesting case of narrow QRS tachycardia with atrioventricular dissociation

Interesting case of narrow QRS tachycardia with atrioventricular dissociation

A 30-year-old man with no structural heart disease has been evaluated for paroxysmal palpitation with documented regular narrow QRS tachycardia that has not responded to intravenous adenosine. Surface electrocardiogram has not shown any pre-excitation. He has been taken for an electrophysiology stud...

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Main Authors: Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Ajitkumar Valaparambil
Format: Article
Language:English
Published: Saudi Heart Association 2018-07-01
Series:Journal of the Saudi Heart Association
Online Access:http://www.sciencedirect.com/science/article/pii/S1016731518300605
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spelling doaj-e47816649435474c886a55886245fd532020-11-25T01:58:46ZengSaudi Heart AssociationJournal of the Saudi Heart Association1016-73152018-07-01303294296Interesting case of narrow QRS tachycardia with atrioventricular dissociationKrishna Kumar Mohanan Nair0Narayanan Namboodiri1Hiren Kevadiya2Ajitkumar Valaparambil3Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695011, Kerala, India; Corresponding author at: Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Medical College Junction, Thiruvananthapuram 695011, Kerala, India.Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695011, Kerala, IndiaDepartment of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695011, Kerala, IndiaDepartment of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695011, Kerala, IndiaA 30-year-old man with no structural heart disease has been evaluated for paroxysmal palpitation with documented regular narrow QRS tachycardia that has not responded to intravenous adenosine. Surface electrocardiogram has not shown any pre-excitation. He has been taken for an electrophysiology study after informed consent. Diagnostic catheters were placed at the coronary sinus, His bundle region, and right ventricle. During catheter manipulation a regular narrow QRS tachycardia with incomplete right bundle branch block morphology and normal QRS axis similar to the clinical tachycardia got induced. No other tachycardia was induced. What is the mechanism of tachycardia? Keywords: Incomplete right bundle branch block, Narrow QRS tachycardia, Upper septal ventricular tachycardiahttp://www.sciencedirect.com/science/article/pii/S1016731518300605
collection DOAJ
language English
format Article
sources DOAJ
author Krishna Kumar Mohanan Nair
Narayanan Namboodiri
Hiren Kevadiya
Ajitkumar Valaparambil
spellingShingle Krishna Kumar Mohanan Nair
Narayanan Namboodiri
Hiren Kevadiya
Ajitkumar Valaparambil
Interesting case of narrow QRS tachycardia with atrioventricular dissociation
Journal of the Saudi Heart Association
author_facet Krishna Kumar Mohanan Nair
Narayanan Namboodiri
Hiren Kevadiya
Ajitkumar Valaparambil
author_sort Krishna Kumar Mohanan Nair
title Interesting case of narrow QRS tachycardia with atrioventricular dissociation
title_short Interesting case of narrow QRS tachycardia with atrioventricular dissociation
title_full Interesting case of narrow QRS tachycardia with atrioventricular dissociation
title_fullStr Interesting case of narrow QRS tachycardia with atrioventricular dissociation
title_full_unstemmed Interesting case of narrow QRS tachycardia with atrioventricular dissociation
title_sort interesting case of narrow qrs tachycardia with atrioventricular dissociation
publisher Saudi Heart Association
series Journal of the Saudi Heart Association
issn 1016-7315
publishDate 2018-07-01
description A 30-year-old man with no structural heart disease has been evaluated for paroxysmal palpitation with documented regular narrow QRS tachycardia that has not responded to intravenous adenosine. Surface electrocardiogram has not shown any pre-excitation. He has been taken for an electrophysiology study after informed consent. Diagnostic catheters were placed at the coronary sinus, His bundle region, and right ventricle. During catheter manipulation a regular narrow QRS tachycardia with incomplete right bundle branch block morphology and normal QRS axis similar to the clinical tachycardia got induced. No other tachycardia was induced. What is the mechanism of tachycardia? Keywords: Incomplete right bundle branch block, Narrow QRS tachycardia, Upper septal ventricular tachycardia
url http://www.sciencedirect.com/science/article/pii/S1016731518300605
work_keys_str_mv AT krishnakumarmohanannair interestingcaseofnarrowqrstachycardiawithatrioventriculardissociation
AT narayanannamboodiri interestingcaseofnarrowqrstachycardiawithatrioventriculardissociation
AT hirenkevadiya interestingcaseofnarrowqrstachycardiawithatrioventriculardissociation
AT ajitkumarvalaparambil interestingcaseofnarrowqrstachycardiawithatrioventriculardissociation
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