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Human Internal Mammary Artery IMA Transplantation and Stenting: A Human Model to Study the Development of In-Stent Restenosis
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Human Internal Mammary Artery IMA Transplantation and Stenting: A Human Model to Study the Development of In-Stent Restenosis

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Is the COMPASS pointing towards clinical equipoise for the right internal mammary artery?

Pradeep Narayan1

  • 1Department of Cardiac Surgery, Rabindranath Tagore International Institute of Cardiac Sciences, Narayana Health, 124, EM Bypass, Mukundapur, Kolkata, 700099 India.

Indian Journal of Thoracic and Cardiovascular Surgery
|June 22, 2023
PubMed

Insights

The right internal mammary artery (RIMA) shows a high failure rate, challenging its use in coronary artery bypass grafting (CABG). Further research is needed to evaluate RIMA

Area of Science:

  • Cardiovascular Surgery
  • Vascular Grafting

Background:

  • The right internal mammary artery (RIMA) is often considered a secondary graft choice in coronary artery bypass grafting (CABG).
  • Recent cardiovascular guidelines recommend RIMA use with a Class IIa indication.

Purpose of the Study:

  • To critically evaluate the efficacy and long-term patency of the RIMA as a coronary artery bypass graft conduit.

Main Methods:

  • Analysis of data from the COMPASS-CABG sub-study.
  • Assessment of graft failure rates associated with RIMA use.

Main Results:

  • The COMPASS-CABG sub-study revealed a significantly high graft failure rate for the RIMA.
  • This finding contrasts with previous recommendations for RIMA utilization.

Conclusions:

  • The high failure rate observed necessitates a re-evaluation of the RIMA's role in CABG.
  • Further scientific investigation and clinical studies are required to determine the optimal use of RIMA as a conduit.

Keywords:
Arterial graftsCABGCOMPASSRight internal mammary artery

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