Prospective study on the rapid exchange biliary system for therapeutic ERC / 中国实用内科杂志

ABSTRACT

Objective The study intends to evaluate the extent to which the rapid exchange biliary system(RX system)provides improved efficiency in comparison with conventional guide wire combinations during therapeutic endoscopic retrograde cholangiopancreatography(ERCP).Methods A prospective study was carried out in which 213 patients were randomized to undergo traditional devices(106 patients)or RX system(107 patients).The parameters were recorded in every case,including the wire loss rates,catheter/guide wire exchange times and fluoroscopy times.Results Wires accessing to the desired ductal/strictures were achieved in 97.1% of conventional devices group and 98.1% of RX system group.But in the conventional devices group,the wire loss rates(%)were significantly higher than the rates in RX system group(10.2?2.3 vs 2.4?1.2,P