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DOI: 10.1055/s-2007-1014077
Aorto-coronary Bypass Surgery in 62 Patients with Severe Left Ventricular Dysfunction - A Follow-up Study
Publikationsverlauf
1984
Publikationsdatum:
07. Mai 2008 (online)
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Summary
Long-term follow-up of 62 consecutive patients with severe left ventricular dysfunction (ejection fraction = < 0.30) and disabling angina pectoris following aorto-coronary bypass surgery was investigated. Prior to surgery all patients had angina pectoris and a history of remote myocardial infarction, 35% were in congestive heart failure (CHF). Significant stenoses in 3 major coronary vessels were present in 51 patients (82%). An average of 3.5 grafts per patient were employed. Operative mortality (30 days) rate was 4.8 % (3 patients) and 13 patients died during the following period.
The average follow-up was 37 months (range: 6 to 116 months). At follow-up, the 5-year survival probability for these patients was 70% (SD = 9%). Thirty-one patients (67%) of the 46 survivors had complete relief of angina, but signs of CHF were still evident in 17 patients (36%).
Compared to patients with ejection fractions above 0.30% (surgical mortality 1.4% and 5-year survival rate 94% (SD = 3%)) the outcome of coronary artery bypass grafting in patients with poor left ventricular function showed a significantly higher surgical mortality (P = 0.03) and impaired long-term survival (P = 0.02). However, aorto-coronary bypass grafting can be performed in patients with severe left ventricular dysfunction with reasonable relief of angina and with an acceptable surgical mortality.
Key words
Aorto-coronary bypass surgery - Left ventricular dysfunction - Long-term survival