Plexus between internal mammary graft and pulmonary vasculature after minimally invasive coronary surgery

Y Liu1, H Noveck, A E Moreyra

  • 1Department of Medicine, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, New Brunswick 08903-0019, USA.

Insights

Minimally invasive coronary artery bypass grafting can lead to rare complications. A patient developed a fistula between the internal mammary artery graft and pulmonary vasculature after surgery.

Area of Science:

  • Cardiovascular Surgery
  • Minimally Invasive Cardiac Surgery
  • Coronary Artery Bypass Grafting

Background:

  • Minimally invasive direct coronary artery bypass grafting (MIDCAB) is an alternative surgical approach.
  • The internal mammary artery is frequently used as a graft conduit in coronary artery bypass surgery.

Observation:

  • A patient experienced a nonfatal anterior myocardial infarction one day post-MIDCAB surgery.
  • Follow-up coronary arteriography revealed an unusual complication two months after the procedure.

Findings:

  • A fistulous connection was identified between the left internal mammary artery graft and the left pulmonary vasculature.
  • This specific complication has not been previously documented in the literature following minimally invasive coronary surgery.

Implications:

  • Highlights a rare but serious potential complication of MIDCAB using internal mammary artery grafts.
  • Suggests the need for vigilance and potentially further investigation into graft-pulmonary vascular interactions in minimally invasive cardiac procedures.