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Right ventricular isolation procedures for nonischemic ventricular tachycardia.
The Journal of Thoracic and Cardiovascular Surgery
|August 1, 1985
Summary
Surgical isolation of the right ventricular free wall effectively controls refractory nonischemic ventricular tachycardia. However, this procedure can lead to progressive right ventricular dilatation, necessitating careful consideration of its application.
Area of Science:
- Cardiology
- Cardiac Surgery
- Electrophysiology
Background:
- Nonischemic ventricular tachycardia often originates in the right ventricular free wall and is difficult to treat with medication.
- Previous surgical ablation techniques have had limited success due to multifocal or polymorphic arrhythmias.
Observation:
- Localized and total surgical isolation of the right ventricular free wall were performed in four patients between 1979 and 1982.
- Follow-up ranged from 2 to 5 years, showing uniform success in controlling tachyarrhythmias.
Findings:
- Surgical isolation of the right ventricular free wall successfully controlled refractory nonischemic ventricular tachycardia in all reported cases.
- Serial echocardiography revealed progressive right ventricular dilatation following total isolation procedures.
Implications:
- Surgical isolation techniques offer a viable option for managing medically refractory right ventricular tachycardia.
- The risk of progressive right ventricular dilatation requires further investigation into prevention and management strategies.