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Long-Term Survival After Minimal Invasive Direct Coronary Artery Bypass (MIDCAB) Surgery in Patients With Low

Hagen Gorki1, Nirav C Patel, Lognathen Balacumaraswami

  • 1From the Department of Cardiothoracic Surgery, Lenox Hill Hospital New York, New York, NY USA.

Innovations (Philadelphia, Pa.)
|March 23, 2012
PubMed

Insights

Minimal Invasive Direct Coronary Artery Bypass (MIDCAB) surgery offers valuable long-term survival for high-risk patients with reduced ejection fraction. This approach provides targeted revascularization, showing promising results even in complex cases.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery Outcomes
  • Minimally Invasive Cardiac Procedures

Background:

  • Patients with ejection fraction ≤30% represent a high-risk group for coronary artery bypass surgery.
  • Long-term survival data for minimally invasive direct coronary artery bypass (MIDCAB) in this specific population is limited.
  • Reoperative MIDCAB presents unique challenges and requires careful evaluation of outcomes.

Purpose of the Study:

  • To investigate the long-term survival rates following MIDCAB surgery in patients with severely reduced ejection fraction (≤30%).
  • To analyze survival outcomes for both primary and reoperative MIDCAB procedures in this high-risk cohort.
  • To identify factors influencing long-term survival after MIDCAB in patients with impaired left ventricular function.

Main Methods:

  • A retrospective study of 73 primary MIDCAB and 89 reoperative MIDCAB patients.
  • Evaluation of preoperative risk factors, operative details, and early postoperative complications.
  • Long-term survival follow-up extending up to 10 years postoperatively.

Main Results:

  • MIDCAB demonstrated excellent short-term results despite the high-risk patient profile.
  • Five-year survival was 62.5% for primary MIDCAB and 43.2% for reoperative MIDCAB; 10-year survival was 36.9% and 29.5%, respectively.
  • Functionally complete revascularization was significantly associated with better long-term survival, especially in primary MIDCAB.

Conclusions:

  • MIDCAB is a viable option for targeted revascularization in high-risk patients with low ejection fraction.
  • The procedure offers a valuable therapeutic strategy for both primary and reoperative cases in this challenging patient group.
  • Achieving complete revascularization is crucial for optimizing long-term survival outcomes in MIDCAB surgery.
Abstract

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