First Prize: A Novel Device to Prevent Stone Fragment Migration During Percutaneous Lithotripsy

Autor:	Margaret S. Pearle, Jeffrey A. Cadeddu, Heather Beardsley, Jodi Antonelli, Monica S C Morgan, Stephen Faddegon, Justin Friedlander, Jeffrey Gahan
Rok vydání:	2014
Předmět:	Percutaneous business.industry Urology medicine.medical_treatment Human bladder Lithotripsy medicine.disease Maximum diameter Nephrostomy medicine Bladder stones Kidney surgery business Percutaneous nephrolithotomy Nuclear medicine
Zdroj:	Journal of Endourology. 28:1395-1398
ISSN:	1557-900X 0892-7790
DOI:	10.1089/end.2014.0231
Popis:	Purpose: We developed a novel device to capture stones in vivo in an enclosed bag (PercSac) to prevent dispersion of stone fragments during percutaneous nephrolithotomy (PCNL) or cystolitholapaxy. We report on our initial feasibility trials of the PercSac device. Materials and Methods: PercSac consists of a specially designed polyethylene bag that is fitted over the shaft of a rigid nephroscope. The bag is used to first entrap the target stone, then tighten around it to allow fragmentation within the bag. Matched pairs of 10 canine bladder stones (2.5 cm maximum diameter) were fragmented in a human bladder model using the CyberWand™ (Olympus America, Inc.), and the procedure was assessed for markers of efficiency and effectiveness. Results: Median time to entrap the stone within the PercSac was 67 seconds (range 51–185 sec). Median time for stone fragmentation was significantly shorter with the PercSac than without (182.0 sec [range 108–221] vs 296.5 sec [range 226–398], P=0.004). Overall, howeve...
Databáze:	OpenAIRE
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