An 11 Year Evolution of Coronary Arterial Surgery (1967–1978)
Why the study?
Does the evolution of coronary arterial surgery techniques and management over an 11-year period improve survival and graft patency in patients undergoing myocardial revascularization?
Population
8,741 patients who underwent isolated myocardial revascularization procedures. Median age increased from 50…
Comparison
Isolated myocardial revascularization procedures… vs Isolated myocardial revascularization procedures…
Design
Cohort
Follow-up
5 years
Authors
Discussion
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Member takes
Implication
Supports evolving revascularization for higher-risk patients; extends early observations but leaves open causal effects in contemporary practice.
Structured PICO
Does the evolution of coronary arterial surgery techniques and management over an 11-year period improve survival and graft patency in patients undergoing myocardial revascularization?
P
Population
8,741 patients who underwent isolated myocardial revascularization procedures (741 from 1967-1970, and the first 1,000 patients each year from 1971-1978). Median age increased from 50 to 56 years, multiple-vessel disease increased from 44 to 89%, and left ventricular asynergy from 41 to 54%.
I
Intervention
Isolated myocardial revascularization procedures performed in later years (1971-1978) with evolving techniques including internal mammary artery grafts.
C
Comparator
Isolated myocardial revascularization procedures performed in earlier years (1967-1970).
O
Outcome
Five-year survivalhard clinical
Over an 11-year period, advancements in coronary arterial surgery techniques and management led to improved five-year survival and graft patency, despite operating on older patients with more extensive disease.
Cite This Study
Loop et al. (1979) studied this question.