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Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
09:12

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery

Published on: March 27, 2018

[Dor operation and quadruple coronary artery bypass grafting combined with endarterectomy]

H Tanaka1, T Narisawa, T Mori

  • 1Department of Thoracic Cardiovascular Surgery, Fujigaoka Hospital, Showa University, Yokohama, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|September 19, 2003
PubMed

Insights

This study details a successful surgical approach for ischemic cardiomyopathy, combining left ventricular reconstruction (Dor operation) with complete coronary revascularization. The innovative technique improved cardiac function significantly without requiring blood transfusion or intraaortic balloon pumping.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Reconstruction
  • Ischemic Cardiomyopathy Treatment

Background:

  • Ischemic cardiomyopathy necessitates both left ventricle (LV) reconstruction and coronary revascularization.
  • The case involves a 58-year-old male patient with severe LV dysfunction (EF 26%).

Observation:

  • The patient underwent a Dor operation (endoventricular circular patch plasty) combined with quadruple coronary artery bypass grafting and endarterectomy.
  • Minimizing cardiac arrest time was achieved by palpating left ventricular muscle contractility under beating heart conditions.
  • A balloon was utilized to prevent insufficient postoperative LV volume.

Findings:

  • Complete coronary revascularization was achieved.
  • The surgery was performed without blood transfusion or intraaortic balloon pumping (IABP) support.
  • Excellent postoperative cardiac function was observed, with ejection fraction (EF) improving to 46%.

Implications:

  • This combined surgical strategy offers a viable option for treating ischemic cardiomyopathy.
  • The technical modifications in the Dor operation may enhance patient outcomes.
  • Minimally invasive approaches in complex cardiac surgeries can lead to excellent functional recovery.

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