Comparison of the disposable bag replacement time of biliary T-tube drainage

Abstract

Objective To compare the replacement time of normal and anti-reflux disposable drainage bag for the risk of infection in patients with biliary T-tube drainage, and to explore the most suitable frequency which patients can get the most benefits.Methods Totals of 144 patients with routine T-tube drainage and the negative culture results of biliary bile were randomly divided into three groups by random number table method. Group A and group B used ordinary disposable drainage bag, while group A changed it every day and group B changed it once a week.Group C used the disposable anti-reflux drainage bag and replaced it once a week.The extraction of bile from drainage bag was used to do the bacteriological monitoring and the results were compared among the three groups.Results There was no significant difference in the bacterial culture among the three groups at the 5th day and 10th day after the drainage （χ2 =0.51, 1.64, respectively;P 〉0.05）.The replacement frequency of the three groups were statistically significant （F=1 379.17,P〈0.01）.The cost of changing drainage bag in three groups had statistically significant difference （ F =229.19, P 〈0.01 ）. Conclusions Patients with biliary T-tube, who use the ordinary disposable bags and change it weekly have similar infection rate as the anti-reflux drainage bag, what’ s more, it can reduce the costs of patients and the workload of nurses. Key words: Biliary track; T-tube drainage; Disposable drainage bag; Replacement time