{"paper_id":"42f6c74e-c055-4dac-9db2-17db29dec54d","body_text":"Abstract\nBackground\nThe FloShield Air System® is a new device for laparoscopic surgery that utilizes a continuous dry CO2 gas flow over the scope to defog the lens and protect it from condensation, debris and smoke. We set out to compare the performance and efficiency of the device in terms of operative lens vision quality (OLVQ) with the reference technique (water + povidone-iodine (PVI) solution) during gynecologic laparoscopic surgery.\nMaterials and methods\nWe conducted a single-center randomized prospective study between March and June 2016 (Trials Database Registration NCT02702531) including 53 patients undergoing gynecologic laparoscopic surgery with water + PVI solution and 51 patients who underwent surgical procedures with the FloShield Air System.\nThe primary outcome measure was the number of laparoscope removals during surgery. Secondary outcome measures were the time to clean, assessment of the quality of vision, the correlation between the laparoscopic surgical complexity and outcomes, and cost effectiveness.\nResults\nOverall, the mean patient age was 43.2 years (range 22–86) and body mass index 24.8 (range 16.8–42.7). The mean number of endoscope removals during surgery was 7.0 (range 0–37) in the water + PVI solution arm and 2.8 (range 0–12) in the FloShield Air System® arm. The number of removals was significantly lower in the FloShield arm (p < 0.001). No difference in time to clean, quality of vision, level of laparoscopic procedure complexity, or cost was observed between the groups.\nConslusions\nThe FloShield Air System® resulted in fewer laparoscopic lens removals than the water + PVI solution solution, but that there was no difference in quality of vision, cleaning time or cost, especially for the more complex surgery.\nSimilar content being viewed by others\nReferences\nChung RS, Rowland DY, Li P, Diaz J (1999) A meta-analysis of randomized controlled trials of laparoscopic versus conventional appendectomy. Am J Surg 177(3):250–256\nKarthikesalingam A, Markar SR, Holt PJE, Praseedom RK (2010) Meta-analysis of randomized controlled trials comparing laparoscopic with open mesh repair of recurrent inguinal hernia. Br J Surg 97(1):4–11\nCanis M, Mage G, Wattiez A et al (1994) The role of laparoscopic surgery in gynecologic oncology. 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Surg Endosc 6(4):197–198\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEthics declarations\nDisclosures\nDrs Bendifallah, Salakos, Naoura, Aristizabal, Furet, Zilberman and Prs Ballester, and Darai have no conflicts of interest or financial ties to disclose.\nElectronic supplementary material\nBelow is the link to the electronic supplementary material.\nRights and permissions\nAbout this article\nCite this article\nBendifallah, S., Salakos, E., Naoura, I. et al. Prospective, randomized comparison of the use of FloShield Air System® versus the reference technique (water + povidone-iodine solution) during gynecologic endoscopic surgery to evaluate the operative lens vision quality. Surg Endosc 32, 1593–1599 (2018). https://doi.org/10.1007/s00464-017-5642-6\nReceived:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/s00464-017-5642-6","source_license":"CC0","license_restricted":false}