PMID: 9169362Jan 1, 1997Paper

Port-access bilateral internal mammary artery grafting for left main coronary artery disease: canine feasibility study

Journal of Cardiac Surgery
W S PetersB A Reitz

Abstract

To extend the applications of minimal access cardiac surgery, an endovascular cardiopulmonary bypass (CPB) system that allows cardioplegia delivery and cardiac venting was used to perform bilateral internal mammary artery (IMA) bypass grafting in six dogs. The left IMA (LIMA) was taken down thoracoscopically from three left lateral chest ports, followed by the right IMA (RIMA) from the right side. One left-sided port was extended medially 5 cm with or without rib resection, to expose the pericardium. Both IMAs were divided and exteriorized through the left anterior mediastinotomy. Flow and pedicle length were satisfactory in all cases. Femoral-femoral bypass was used and the heart arrested with antegrade delivery of cardioplegic solution via the central lumen of a balloon catheter inflated to occlude the ascending aorta. All anastomoses were made through the mediastinotomy under direct vision. In five studies the RIMA was attached to the left anterior descending artery (LAD) and the LIMA to the circumflex, and in one study the RIMA was tunneled through the transverse sinus to the circumflex and the LIMA was anastomosed to the LAD. All animals were weaned from CPB in sinus rhythm without inotropes. CPB duration was 108 +/- 27 mi...Continue Reading

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Citations

Jun 1, 1997·The Annals of Thoracic Surgery·W S PetersT A Burdon
Feb 24, 2001·Journal of the American College of Cardiology·J P IoannidisC E Anagnostopoulos
Oct 20, 1999·Journal of Cardiothoracic and Vascular Anesthesia·J CoddensH Vanermen
Mar 1, 1997·Perfusion·J M ToomasianJ H Stevens

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