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July 1, 1987Clinical CardiologyOpen Access

Coronary artery bypass surgery in patients over age 70 years: Report from the milwaukee cardiovascular data registry

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Why the study?

What are the operative mortality and long-term survival outcomes for patients over age 70 undergoing coronary artery bypass surgery?

Population

674 coronary bypass patients ≥ 70 years with both catheterization and operative data entered into the…

Design

Cohort

Follow-up

up to 7 years

Authors

GDGerald DorrosPDPauline DaleyJAJ Assa

Discussion

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Overview

Risk stratification by CAD extent and LV wall motion informs decisions in patients ≥70 years; leaves open applicability to contemporary practice.

Key Points

  • To analyze operative mortality and morbidity in patients aged ≥ 70 years undergoing coronary artery bypass surgery.
  • Analyzed data from 674 patients aged ≥ 70 years who underwent surgery between 1972 and 1985 from a cardiovascular registry.
  • Evaluated operative mortality, morbidity, and impact of coronary artery disease and wall motion abnormalities on outcomes.
  • Complications and long-term survival rates were assessed.
  • Overall operative mortality was 7.4%, with 5.2% for single-, 8.9% for double-, and 7.0% for triple-vessel disease.
  • Survival at 7 years was 64.6%, significantly affected by wall motion abnormalities (normal 73% vs. abnormal 56%).
  • Patients with triple-vessel disease had a 78% survival rate at 7 years compared to 91% for single-vessel disease (p<0.05).

Structured PICO

What are the operative mortality and long-term survival outcomes for patients over age 70 undergoing coronary artery bypass surgery?

P
Population
674 coronary bypass patients ≥ 70 years (70% male, mean age 73 years) with both catheterization and operative data entered into the Milwaukee Cardiovascular Data Registry.
I
Intervention
Coronary artery bypass surgery (mean of 3.4 grafts placed)
O
Outcome
30-day operative mortality and operative morbidityhard clinical

Coronary bypass surgery in patients over 70 years carries a significant operative mortality related to left ventricular wall motion abnormalities, but survivors have a relatively good long-term outlook.

Cite This Study

Dorros et al. (1987) studied this question.

synapsesocial.com/papers/6a70e3198031ec7bb1dca607https://doi.org/10.1002/clc.4960100703
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Coronary arteriography and coronary artery bypass surgery: morbidity and mortality in patients ages 65 years or older. A report from the Coronary Artery Surgery Study.1983 · 294 citations
  2. 2Coronary Artery Disease1973 · 74 citations
  3. 3Surgery using cardiopulmonary bypass in the elderly.1978 · 69 citations
  4. 4The Association of Smoking with Cardiomyopathy1984 · 64 citations