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[Coronary malperfusion of left main trunk due to localized dissection of the ascending aorta]

Shinji Masuyama1, T Komiya, N Tamura

  • 1Department of Cardiovascular Surgery, Kurashiki Central Hospital, Kurashiki, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|June 15, 2007
PubMed

Insights

Local aortic dissection can cause myocardial infarction. Surgical repair of left main trunk dissection, using pericardium or perfusion catheters, successfully treated two patients with acute type A aortic dissection and coronary malperfusion.

Area of Science:

  • Cardiovascular Surgery
  • Aortic Diseases
  • Interventional Cardiology

Background:

  • Acute type A aortic dissection is a rare but life-threatening condition.
  • Coronary malperfusion is a serious complication of aortic dissection, potentially leading to myocardial infarction.
  • Left main trunk dissection, specifically, poses a significant surgical challenge.

Observation:

  • Two cases of acute myocardial infarction were presented.
  • Both patients had left main trunk dissection secondary to local aortic root dissection.
  • One dissection was spontaneous, the other traumatic.

Findings:

  • Successful surgical repair of left main trunk dissection was achieved in both cases.
  • Techniques included pericardial graft repair and coronary artery bypass grafting with a perfusion catheter.
  • These interventions restored coronary perfusion and treated the acute myocardial infarction.

Implications:

  • Local aortic dissection, though rare, requires prompt recognition and management.
  • Surgical strategies for left main trunk involvement in aortic dissection can be effective.
  • Successful treatment of coronary malperfusion in aortic dissection is crucial for patient survival and outcomes.

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