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Ann Thorac Surg 2000;70:1086-1089
© 2000 The Society of Thoracic Surgeons

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Supplement: cardiothoracic techniques & technologies

Endoscopic saphenous vein harvesting: initial experience and learning curve

^a Department of Cardiovascular Surgery, Instituto Cardiovascular de Buenos Aires, Buenos Aires, Argentina

Address reprint requests to Dr Vrancic, Department of Cardiovascular Surgery, Instituto Cardiovascular de Buenos Aires, Blanco Encalada 1543, 1428 Buenos Aires, Argentina
e-mail: don{at}lvd.com.ar

Presented at the Sixth Annual Cardiothoracic Techniques and Technologies Meeing 2000, Fort Lauderdale, FL, Jan 27–29, 2000.

Background. Saphenous vein remains an elective conduit for up to 85% of coronary bypass operations. It is obtained through one or numerous skin incisions, with a reported morbidity varying from 5% to 25%. The endoscopic vein harvesting (EVH) technique was developed to minimize this morbidity and to improve clinical outcomes. The aim of this study was to review the feasibility of this method, its learning curve, and changing results in a group without previous experience in this procedure.

Methods. Between July 1998 and October 1999, 179 patients for coronary artery bypass grafting underwent EVH (Vasoview Guidant, USA "double access" and Uniport), by two operators. Results were reported based on time of harvesting, length of conduits, technical details, and clinical outcomes, and divided into six groups of 30 consecutive patients each.

Results. Patient demographics were as follows: 86.03% were male, aged 64.3 ± 9.12 years (range, 43 to 92 years), with diabetes mellitus in 28.49%, obesity in 18.43%, and vascular disease in 11.17%. The EVH method was limited to the thigh in 77.65% of cases and extended to the leg in 22.35%. Patients received an average of 2.45 ± 0.58 incisions and obtained conduits had a mean length of 34.96 ± 9.65 cm (range, 15 to 70 cm). The number of venous bypasses per patient was 1.30 ± 0.59. Mean time of EVH was 47.24 ± 19.84 minutes (range, 15 to 120), with a length–time index of 0.85 ± 0.36. Primary success was achieved in 95.54%, with crossover to open technique in 4.46%. General morbidity was 8.9%, with hematoma in 1.11%, skin necrosis in 1.11%, infection in 6.7%, and readmission in 1.11%.

Conclusions. Endoscopic vein harvesting is a feasible and reproductible method, with a typical learning curve, acceptable morbidity, and unquestionable benefits for coronary artery bypass graft patients.

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