Cardiac surgery in geriatric patients.

Area of Science:

• Cardiovascular Surgery
• Geriatric Medicine
• Outcomes Research

Background:

• Cardiac surgery in elderly patients (65+) presents unique challenges.
• Previous data on outcomes for this demographic undergoing cardiopulmonary bypass were limited.

Purpose of the Study:

• To evaluate the safety and efficacy of elective cardiac operations in patients aged 65 years and older.
• To identify factors influencing operative mortality in this population.

Main Methods:

• Retrospective analysis of 157 patients aged 65+ undergoing elective cardiac surgery with cardiopulmonary bypass between 1960 and 1976.
• Procedures included valve replacement, coronary artery surgery, or both.
• Data on preoperative conditions, operative details, complications, and mortality were collected.

Main Results:

• Overall operative mortality was 19.7%.
• Mortality rates varied by procedure: 22.6% for valve replacement, 19.1% for coronary artery surgery, and 5.8% for combined procedures.
• A significant correlation was found between operative mortality and preoperative heart size.
• Mortality decreased significantly in the last 3 years of the study (9.6%).
• Major causes of death included myocardial infarction, pulmonary complications, infections, and renal failure.

Conclusions:

• Elective cardiac operations can be performed with acceptable mortality rates in patients over 65.
• Improvements in surgical techniques and perioperative care have led to reduced mortality.
• Preoperative heart size is a significant predictor of operative risk.