Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region

Abstract Background Ablation of idiopathic ventricular arrhythmias (VAs) in the cardiac crux region is one of the challenging procedures due to the complex anatomical structure where the four chambers of the heart are offset. Although this region is complex, the contiguous cardiac structures allow f...

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Main Authors: Pichmanil Khmao, Chun Hwang, Hui-Nam Pak
Format: Article
Language:English
Published: BMC 2021-09-01
Series:International Journal of Arrhythmia
Subjects:
Online Access:https://doi.org/10.1186/s42444-021-00045-9
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author Pichmanil Khmao
Chun Hwang
Hui-Nam Pak
author_facet Pichmanil Khmao
Chun Hwang
Hui-Nam Pak
author_sort Pichmanil Khmao
collection DOAJ
description Abstract Background Ablation of idiopathic ventricular arrhythmias (VAs) in the cardiac crux region is one of the challenging procedures due to the complex anatomical structure where the four chambers of the heart are offset. Although this region is complex, the contiguous cardiac structures allow for the ablation of arrhythmias from adjacent sites. Case presentation We present different anatomical approaches in radiofrequency ablation and the ECG characteristics from a case series of VAs originated from the basal inferior ventricular septum, the corresponding endocardial aspect of the basal cardiac crux region. Conclusions Ablation of VAs originated from the basal cardiac crux region requires detailed mapping in the proximal coronary venous system and the adjacent structures including the RV, RA, and LV. In addition to the characteristic ECG of basal crux VAs, our three cases present an abrupt precordial transition in V2 with R wave amplitude greater than in V1 and V3.
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spelling doaj.art-eadb0d8293f246b58e0b76ac1bd58a232022-12-21T18:57:34ZengBMCInternational Journal of Arrhythmia2466-11712021-09-012211510.1186/s42444-021-00045-9Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux regionPichmanil Khmao0Chun Hwang1Hui-Nam Pak2Yonsei University Health SystemDepartment of Cardiology, Revere HealthYonsei University Health SystemAbstract Background Ablation of idiopathic ventricular arrhythmias (VAs) in the cardiac crux region is one of the challenging procedures due to the complex anatomical structure where the four chambers of the heart are offset. Although this region is complex, the contiguous cardiac structures allow for the ablation of arrhythmias from adjacent sites. Case presentation We present different anatomical approaches in radiofrequency ablation and the ECG characteristics from a case series of VAs originated from the basal inferior ventricular septum, the corresponding endocardial aspect of the basal cardiac crux region. Conclusions Ablation of VAs originated from the basal cardiac crux region requires detailed mapping in the proximal coronary venous system and the adjacent structures including the RV, RA, and LV. In addition to the characteristic ECG of basal crux VAs, our three cases present an abrupt precordial transition in V2 with R wave amplitude greater than in V1 and V3.https://doi.org/10.1186/s42444-021-00045-9Cardiac crux regionIdiopathic ventricular arrhythmiasRadiofrequency ablation
spellingShingle Pichmanil Khmao
Chun Hwang
Hui-Nam Pak
Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
International Journal of Arrhythmia
Cardiac crux region
Idiopathic ventricular arrhythmias
Radiofrequency ablation
title Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
title_full Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
title_fullStr Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
title_full_unstemmed Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
title_short Ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
title_sort ablation of idiopathic ventricular arrhythmias originating from basal cardiac crux region
topic Cardiac crux region
Idiopathic ventricular arrhythmias
Radiofrequency ablation
url https://doi.org/10.1186/s42444-021-00045-9
work_keys_str_mv AT pichmanilkhmao ablationofidiopathicventriculararrhythmiasoriginatingfrombasalcardiaccruxregion
AT chunhwang ablationofidiopathicventriculararrhythmiasoriginatingfrombasalcardiaccruxregion
AT huinampak ablationofidiopathicventriculararrhythmiasoriginatingfrombasalcardiaccruxregion