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Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
Surgical management for acute coronary insufficiency with three year's follow-up
Insights
Early coronary artery bypass grafting using saphenous vein grafts for acute coronary insufficiency significantly improves patient outcomes. This surgical intervention demonstrates a low mortality and myocardial infarction rate within three years post-operation.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Surgery
Background:
- Acute coronary insufficiency, defined as unstable angina with ECG changes, presents a critical cardiac event.
- Prompt intervention is crucial for patients experiencing severe coronary insufficiency.
- Saphenous vein grafting is a common surgical revascularization technique.
Purpose of the Study:
- To evaluate the efficacy and safety of early coronary artery bypass grafting (CABG) using saphenous vein grafts in patients with acute coronary insufficiency.
- To assess the long-term outcomes, including mortality and myocardial infarction rates, following this intervention.
Main Methods:
- Forty-five consecutive patients diagnosed with acute coronary insufficiency underwent saphenous vein CABG within 48 hours of symptom onset.
- Patients were monitored for a 3-year follow-up period.
- Outcomes assessed included operative mortality, long-term mortality, and myocardial infarction events.
Main Results:
- The operative mortality rate was 8.8%.
- The 3-year cumulative mortality rate was 11%, with one late death due to myocardial infarction.
- The 3-year myocardial infarction rate was 4%, with one nonfatal event occurring early postoperatively.
- The majority of surviving patients (38/40) were in Class I clinical status at follow-up.
Conclusions:
- Early coronary artery bypass grafting with saphenous vein grafts is a safe and effective treatment for acute coronary insufficiency.
- This surgical approach leads to favorable long-term clinical outcomes and a low incidence of major adverse cardiac events.
- Urgent surgical revascularization should be considered for patients with unstable angina and ECG abnormalities.
Abstract:
In this report, acute coronary sufficiency is defined as unstable angina requiring narcotics for relief and an unstable electrocardiogram with or without transient mild enzyme elevations. Forty-five consecutive patients with this syndrome underwent coronary artery grafting with the saphenous vein within 48 hours of the onset of symptoms. They were followed for 3 years. There was an 8.8 per cent operative mortality rate. One long-term survivor sustained a fatal myocardial infarction 18 months postoperatively. One nonfatal myocardial infarction occurred 6 weeks postoperatively. Therefore, the 3 year cumulative mortality rate was 11 per cent and the 3 year myocardial infarction rate was 4 per cent. Thirty-eight patients are in Class I clinical status, 1 is in Class II, and 1 is in Class III.
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