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Eur J Cardiothorac Surg 1999;16:S58-S60
© 1999 Elsevier Science NL

Minimally invasive saphenous vein harvesting: is there an improvement of the results with the endoscopic approach?

Heartcenter Ludwigshafen, Clinic for Cardiac Surgery, Bremserstrasse 73, 67063 Ludwigshafen, Germany

^* Corresponding author. Tel.: +49-621-503-4050; fax: +49-621-503-4060 (Email: frank.isgro{at}t-online.de).

Objectives: In the postoperative course after conventional open removal of the greater saphenous vein, wound healing disturbances are common and often painful. Therefore the primary goal of this investigation was to prove the safety and practicability of this new less invasive technique for saphenous vein harvesting and the effect on complications and morbidity. Methods: The study comprised 103 coronary artery bypass grafting (CABG) patients with an endoscopic approach to harvest the saphenous vein (MIVH). We used the VasoView II system developed by Origin, and compared the intraoperative procedure time and the clinical results with 105 equivalent patients in which a conventional open technique was used. Results: In 101 patients endoscopic vein harvesting was successful; a conversion into open technique was necessary in two patients. On average 2.6 vein segments could be harvested in the endogroup versus 2.9 segments in the opengroup. The mean procedure time was 13.2 min per segment in the endogroup compared to 12.2 min per segment in the opengroup. Relevant hematoma were found in 29 patients (27.6%) of the opengroup, whereas only nine patients (8.7%) of the endogroup revealed severe hematoma. Infection was apparent in nine patients (8.5%) after conventional vein harvesting. Two infections were found after endoscopic intervention. Conclusions: Endoscopic saphenous vein harvesting as part of a less invasive concept in cardiac surgery is a safe and after the learning curve, fast alternative to harvest the saphenous graft. The cosmetic result is excellent and the complication rate seems to be lower. It must be noted however, that the cost effectiveness of the method has to be proved and that further histological and functional studies are needed in order to check the intimal structure of the vein.

Key Words: Endoscopic vein harvesting • Coronary artery bypass grafting

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