Low power ablation for left coronary cusp ventricular tachycardia—Efficacy and long-term outcome

Autor: Ajith Ananthakrishna Pillai, Balachander Jayaraman, Kabilan S. Jagadheesan, Raja J. Selvaraj, Santhosh Satheesh
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Male
medicine.medical_treatment
NCC
non coronary cusp
PVCs
premature ventricular complexes
RVOT
Right ventricular outflow tract
030204 cardiovascular system & hematology
Ablation
Ventricular tachycardia
Electrocardiography
0302 clinical medicine
RBBB
right bundle branch block
VT
ventricular tachycardia
030212 general & internal medicine
Premature ventricular beats
LVOT
Left ventricular outflow tract
Equipment Design
Middle Aged
LBBB
left bundle branch block
Treatment Outcome
Cardiology
Catheter Ablation
cardiovascular system
Female
Cardiology and Cardiovascular Medicine
Adult
medicine.medical_specialty
Idiopathic ventricular tachycardia
LMCA
left main coronary artery
Adolescent
RD1-811
RCC
right coronary cusp
03 medical and health sciences
Young Adult
Heart Conduction System
Internal medicine
medicine
Humans
Diseases of the circulatory (Cardiovascular) system
Left coronary cusp
cardiovascular diseases
RF
radiofrequency
Retrospective Studies
business.industry
medicine.disease
Aortic cusp
LCC
left coronary cusp
Coronary ostium
RC666-701
Tachycardia
Ventricular
Surgery
Cardiac Electrophysiology
business
Follow-Up Studies
Zdroj: Indian Heart Journal, Vol 70, Iss, Pp S384-S388 (2018)
Indian Heart Journal
ISSN: 0019-4832
Popis: Background: The left coronary cusp is an uncommon but well-known site for the ablation of idiopathic ventricular tachycardia (VT). Proximity to the left coronary ostium makes ablation of this arrhythmia challenging. Different power settings have been described by various operators. Our objective was to describe the outcomes with low power ablation. Methods: Once mapping confirmed origin from the left coronary cusp, ablation was performed if the best site was situated at least 5 mm from the left coronary ostium. Ablation was started at 15 W and, if successful, was stopped after 30 s. When required, higher powers were used up to 30 W. Results: Ten patients with VT or premature ventricular beats mapped to the left coronary cusp were included in the study. No ablation was performed in one patient because of proximity to the left coronary ostium. Successful ablation was performed in eight of the other nine patients with a mean power of 18.1 ± 5.3 W and duration of 42.2 ± 13.5 s. There were no complications. All the eight patients remained free of recurrence at 16.8 ± 16.5 months of follow-up. Conclusions: VT can be ablated from the left coronary cusp close to the left coronary ostium. Ablation with low power is effective in achieving immediate success which is also durable with time while avoiding complications. Keywords: Ventricular tachycardia, Aortic cusp, Ablation, Left coronary cusp, Idiopathic ventricular tachycardia
Databáze: OpenAIRE
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