Partial left ventriculectomy: the 2nd International Registry Report 2000.

Area of Science:

• Cardiovascular Surgery
• Cardiac Resynchronization Therapy
• Heart Failure Management

Background:

• Partial left ventriculectomy (PLV) is a surgical procedure for heart failure, historically lacking standardized patient selection criteria.
• This lack of standardization may impact the effectiveness and outcomes of PLV.

Purpose of the Study:

• To analyze outcomes of partial left ventriculectomy (PLV) in nonischemic heart failure patients.
• To identify factors influencing event-free survival after PLV.
• To evaluate the impact of surgical experience and patient selection on PLV outcomes.

Main Methods:

• An international registry of 287 nonischemic PLV cases from 48 hospitals across 11 countries was utilized.
• Data included patient demographics, ventricular characteristics, operative details, and clinical outcomes.
• Statistical analysis was performed to identify predictors of event-free survival.

Main Results:

• Event-free survival was not affected by gender, age, ventricular dimensions, or etiology.
• Preoperative conditions like prolonged symptoms, advanced NYHA class, low fractional shortening (FS), and emergency procedures were associated with reduced event-free survival.
• Higher hospital case volume (≥5 cases) and improved patient selection (avoiding high-risk factors) correlated with significantly better outcomes, enabling risk stratification.

Conclusions:

• Avoiding specific preoperative risk factors and selecting less symptomatic patients with preserved contractility improves survival after PLV.
• Accumulated surgical experience and refined patient selection criteria are crucial for optimizing PLV outcomes.
• Further prospective studies are needed to compare PLV with alternative therapies for specific patient groups.