Preliminary results from a prospective study of laparoscopic aortobifemoral bypass using a clampless and sutureless aortic anastomotic technique

B Segers, D Horn, J Lemaitre, A Roman, E Stevens, V Van Den Broeck, P Hizette, T Bosschaerts
European Journal of Vascular and Endovascular Surgery 2014, 48 (4): 400-6

OBJECTIVE: This prospective study describes the feasibility and safety of a new clampless and sutureless aortic anastomotic technique used during retroperitoneal laparoscopic aortobifemoral bypass in extensive aortoiliac occlusive lesions. This is a case series of a previously published technique, demonstrating wider applicability of the technique.

MATERIALS AND METHODS: Twelve patients underwent a clampless and sutureless laparoscopic bypass for TASC D aortoiliac occlusive lesions using the EndoVascular REtroperitoneoScopic Technique (EVREST). Dissection of the retroperitoneal space and the infrarenal aorta was performed laparoscopically. A bifurcated graft was inserted into the retroperitoneal space. The main body of the graft was connected on the left side of the aorta by an intra- and extra-aortic covered stent-graft. An aortic clamp was used temporarily on four patients because of excessive bleeding when the connector was deployed. The femoral anastomoses were performed by classic open surgery. Initial technical success, complications, and bypass patency were assessed.

RESULTS: Median follow-up was 9.3 months. Median operative time was 265 minutes. Median duration of aorto-prosthetic connection was 60 seconds. Thirty-day postoperative mortality was 0%. No major postoperative complications were observed. All grafts were patent at the end of follow-up and there was no early or late disruption of the proximal assembly.

CONCLUSIONS: EVREST greatly facilitates laparoscopic aortic surgery in occlusive disease with no need for suture or clamping of the aorta. This technique performed in a single center on 12 patients, seems to be feasible and safe. It offers the advantages of laparoscopy and those of endovascular surgery, especially in the challenging conditions encountered during aortic laparoscopic surgery. Early experience supports procedural and initial postprocedural safety and demonstrates proof-of-concept for EVREST.

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