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Analysis of consistency among the results of preoperative midstream urine culture, renal pelvis urine culture and renal stone culture in patients undergoing percutaneous nephrolithotomy and their relationship with postoperative infection / 中国医师进修杂志
Chinese Journal of Postgraduates of Medicine ; (36): 225-229, 2019.
Article in Chinese | WPRIM | ID: wpr-744096
ABSTRACT
Objective To evaluate the consistency among the results of preoperative midstream urine culture (PMUC), renal pelvis urine culture (RPUC) and renal stone (RSC) culture in patients undergoing percutaneous nephrolithotomy (PNL) and their relationship with postoperative infection. Methods This was a multicenter prospective study. From September 2014 to November 2017, 115 patients undergoing standard channel PNL or microchannel PNL in the First Affiliated Hospital of Soochow University and Yancheng Hospital of Traditional Chinese Medicine were selected. The PMUC, RPUC and RSC were detected. Samples for RPUC and RSC were obtained during PNL. The clinical data, stone configuration, stone burden and results of cultures were recorded. Results In the 115 patients, PMUC positive was in 4 cases (3.5%), RPUC positive was in 17 cases (14.8%), and RSC positive was in 16 cases (13.9% ); both RPUC and RSC positive were in 7 cases (6.1% ), among whom consistent pathogenic bacterium was in 6 cases, and inconsistent pathogenic bacterium was in 1 case; all the 3 cultures were positive in 1 case, but the types of pathogenic bacterium of PMUC were totally different with RPUC and RSC. At least one positive of the 3 cultures was in 29 cases (25.2% ). The types of pathogenic bacterium of PMUC were multidrug susceptible Escherichia coli and Staphylococcus aureus , and the types of pathogenic bacterium of RPUC and RSC were multidrug resistant pathogens and/or fungus. The consistency of pathogenic bacterium between PMUC and RPUC, RSC was very low; while the consistency of pathogenic bacterium between RPUC and RSC was very high (6/7). Postoperative infection occurred in 8 of 115 patients (7.0% , 5 cases of infective fever and 3 cases of urinary sepsis). In the 8 patients, PMUC was negative, PRUC positive in 4 cases, RSC positive in 7 cases, and both PRUC and RSC positive were in 3 cases. Conclusions PMUC can not accurately reflect the true situation of upper urinary tract renal calculi and pyelo-urine pathogenic bacterium. In patients with PNL postoperative infectious complications, the result of PMUC is often negative, but the results of RPUC and RSC are mostly positive. RPUC and RSC are helpful to detecting pathogenic bacterium in time, guiding the application of sensitive antibiotics, preventing and treating PNL postoperative infection.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Controlled clinical trial / Observational study Language: Chinese Journal: Chinese Journal of Postgraduates of Medicine Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Controlled clinical trial / Observational study Language: Chinese Journal: Chinese Journal of Postgraduates of Medicine Year: 2019 Type: Article