A Novel Reverse Thermosensitive Polymer to Achieve Temporary Atraumatic Vessel Occlusion in Infra-popliteal Bypasses

作者：Mani K; Campbell A; Fitzpatrick J; Modarai B; Carrell T; Rashid H; Zayed H^*

来源：European Journal of Vascular and Endovascular Surgery, 2013, 45(1): 51-56.

DOI：10.1016/j.ejvs.2012.10.008

• Thermosensitive polymer
• Distal bypass surgery
• Critical limb ischaemia
• Vascular occlusion
• Limb salvage

Objective: The study aims to assess a novel thermosensitive polymer (LeGoo (R)) for distal vessel control during infra-popliteal (crural/pedal) bypass surgery in severe leg ischaemia. %26lt;br%26gt;Method: Retrospective analysis of all distal bypasses from October 2009 to February 2012. Technical success, patency, limb salvage and amputation-free survival rates were analysed. %26lt;br%26gt;Results: Fifty-four infra-popliteal bypasses using the polymer were performed in 46 patients. The distal anastomosis was at the anterior tibial (n = 15, 28%), posterior tibial (n = 12, 22%), peroneal (n = 8, 15%), tibio-peroneal trunk (n = 8, 15%) and dorsalis pedis arteries (n = 11, 20%). Technical success was achieved in 51/54 (94.4%; failures: two inadequate haemostasis, one un-dissolved polymer). In-hospital duplex of the distal anastomosis showed a significant stenosis in two cases (4.3%). Outflow angioplasty was performed in three cases (two distal anastomotic, one run-off vessel, 5.6%). The 1-year patency rate was 76.2% (standard error (SE) 6.7%), limb salvage rate 79.3% (SE 6.7%). Amputation-free survival was 93.5% at 30 days (SE 3.6%) and 67.5% at 1 year (SE 7.5%). %26lt;br%26gt;Conclusion: This thermosensitive polymer is a potentially safe and useful atraumatic device to achieve a bloodless distal anastomotic field in infra-popliteal bypasses. The technique avoids other potentially traumatic methods of vessel control, which may be particularly important in patients with calcified distal vessels.

• 出版日期2013-1