Catheter Ablation of Ischemic Ventricular Tachycardia Originating from an Inferobasal Right Ventricular Scar Using Substrate Mapping: A Case Report
View Full Paper
Ask AI
Bookmark
Share
Key result
Substrate mapping-guided radiofrequency catheter ablation of an inferobasal right ventricular scar successfully eliminated hemodynamically unstable ischemic ventricular tachycardia, with the patient remaining free of ICD shocks at 4 months.
Population
1 58-year-old male with ischemic cardiomyopathy, LV systolic dysfunction, prior primary-prevention…
Design
Case_report
Follow-up
4 months
Authors
Discussion
Loading...
Member takes
Implication
May support RV substrate mapping in refractory ischemic VT after LV failure; leaves open validation in larger cohorts.
Study Design
Type
Case Report (n=1)
Multicenter
No
Structured PICO
P
Population
A 58-year-old male with ischemic cardiomyopathy, left ventricular systolic dysfunction, and recurrent ventricular tachycardia despite antiarrhythmic therapy, followed for 4 months post-ablation.
I
Intervention
Radiofrequency catheter ablation using a substrate mapping approach targeting isolated late ventricular potentials (ILPs) in the endocardial surface of the left ventricle and inferobasal right ventricle.
O
Outcome
Elimination of ventricular tachycardia inducibility and freedom from ICD discharges
This case demonstrates that ischemic ventricular tachycardia can originate from the right ventricular endocardium and can be successfully treated using a substrate mapping approach when left ventricular ablation fails.
Limitations
- Single case report limits generalizability.
- ECG criteria for differentiating right ventricular from left ventricular origin of ventricular tachycardia are imperfect.
Cite This Study
Sohinki et al. (2018) conducted a case report in Ischemic Ventricular Tachycardia (n=1). Radiofrequency catheter ablation using substrate mapping was evaluated on Elimination of inducible ventricular tachycardia and freedom from ICD shocks. Substrate mapping-guided radiofrequency catheter ablation of an inferobasal right ventricular scar successfully eliminated hemodynamically unstable ischemic ventricular tachycardia, with the patient remaining free of ICD shocks at 4 months.
Topics
View Full Paper
Ask AI
Bookmark
Share