Quality control for cardiac surgery in the Veterans Administration

Area of Science:

• Cardiovascular Surgery
• Health Services Research
• Medical Quality Improvement

Background:

• Cardiac surgical procedures have seen significant growth over time.
• Monitoring operative mortality is crucial for assessing surgical quality and patient outcomes.

Purpose of the Study:

• To analyze trends in cardiac surgical procedure volume and 30-day mortality across Veterans Administration (VA) medical centers.
• To compare VA data with state-level health statistics for cardiac surgery outcomes.

Main Methods:

• Retrospective review of cardiac surgical data from 72 VA medical centers (1975-1984).
• Analysis of procedure volumes and operative mortality rates for various cardiac operations.
• Comparison of VA data with New York State Department of Health data (1979-1983).

Main Results:

• Cardiopulmonary bypass operations doubled, with a decrease in operative mortality from 8.3% to 4.7%.
• Mortality for isolated valve replacement and aortocoronary bypass procedures also declined.
• VA hospitals showed higher mortality for aortic valve procedures compared to New York State data.

Conclusions:

• Significant improvements in cardiac surgery outcomes were observed over the 10-year period.
• Patient disease severity and surgical factors like myocardial protection and technique remain key contributors to mortality.
• Standardized risk factor identification is needed for meaningful inter-institutional comparisons and performance standards in cardiac surgery.