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Management of asymptomatic aortic stenosis in patients undergoing coronary artery bypass grafting

Kazunori Yoshida1, Masahiko Matsumoto, Takaaki Sugita

  • 1Department of Cardiovascular Surgery, Tenri Hospital, Nara, Japan.

Circulation Journal : Official Journal of the Japanese Circulation Society
|February 27, 2003
PubMed

Insights

For patients with moderate aortic stenosis needing coronary artery bypass grafting (CABG), aortic valve replacement (AVR) is recommended for those under 70 with rapid stenosis progression. Older patients without rapid progression may only need CABG.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery Outcomes
  • Aortic Stenosis Management

Background:

  • Coronary artery bypass grafting (CABG) is a common procedure for coronary artery disease.
  • Aortic stenosis (AS) often coexists with coronary artery disease, necessitating careful treatment decisions.
  • The optimal surgical strategy for patients with moderate AS undergoing CABG remains debated.

Purpose of the Study:

  • To compare outcomes of combined CABG/aortic valve replacement (AVR) versus CABG alone in patients with moderate AS.
  • To identify indications for AVR at the time of CABG in this patient population.

Main Methods:

  • Retrospective analysis of 41 patients with moderate AS undergoing CABG between 1988 and 2001.
  • Patients undergoing CABG alone were stratified into rapid (deltaP >/=10 mmHg/year) and slow progression groups based on echocardiography.
  • Survival and event-free rates were analyzed.

Main Results:

  • Combined CABG/AVR was performed in 26 patients; CABG alone in 15.
  • For CABG-alone patients, 5-year survival was 92% and 10-year survival was 74%. Event-free rates were 65% (5-year) and 50% (10-year).
  • Younger patients (<70 years) in the rapid progression group had a higher risk of re-operation.

Conclusions:

  • Patients younger than 70 with risk factors for rapid AS progression benefit from combined CABG/AVR.
  • Older patients (>70 years) without rapid progression risk factors may be suitable for CABG alone.
  • Individualized surgical decision-making is crucial for patients with moderate AS undergoing CABG.

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