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Cardiac surgery in octogenarians: does age alone influence outcomes?
W Michael Johnson1, J Michael Smith, Scott E Woods
1Department of Surgery, Good Samaritan Hospital, Cincinnati, OH 45220, USA.
Archives of Surgery (Chicago, Ill. : 1960)
|November 23, 2005
Summary
Octogenarians undergoing cardiac surgery face higher risks of death, longer hospital stays, and more complications. Age significantly impacts outcomes even after accounting for other health factors.
Area of Science:
- Cardiovascular Surgery
- Geriatric Medicine
- Health Outcomes Research
Background:
- Cardiac surgery is increasingly performed on elderly patients.
- Understanding age-specific outcomes is crucial for surgical risk assessment.
Purpose of the Study:
- To analyze outcome differences in octogenarians versus younger patients undergoing coronary artery bypass grafting or valve surgery.
- To isolate the effect of age alone on morbidity and mortality in cardiac surgery patients.
Main Methods:
- Eight-year prospective cohort study involving 7726 patients undergoing coronary artery bypass grafting or valve surgery.
- Data on 225 variables were collected, with 16 potential confounding factors controlled for in multivariate analysis.
- Key outcomes included mortality, length of stay, and various complication rates.
Main Results:
- Octogenarians (522 patients) had higher rates of mortality (RR, 1.72), longer hospital stays (RR, 1.03), more neurologic complications (RR, 1.51), and increased need for reoperation due to bleeding (RR, 1.49).
- Octogenarians presented with more comorbidities, including higher New York Heart Association functional classification and hypertension.
- Despite controlling for confounders, age remained a significant predictor of adverse outcomes.
Conclusions:
- Age alone is a significant factor influencing outcomes after cardiac bypass or valve surgery.
- Octogenarians have a higher risk of mortality and complications compared to younger patients, even after adjusting for comorbidities.