Clinical Significance Of PCNL Intraoperative Renal Pelvis Urine And Calculi Bacteria Culture For Prevention And Treatment Of Postoperative Infection

Objective To discuss the clinical significance of percutaneous nephroscopeintraoperative renal pelvis urine and calculi bacteria culture for prevention andtreatment of postoperative infection.Methods324cases of UUTC were enrolled in the study. Mid-stream urine culturewas obtained before operation continuous3days without antibiotic. Intraoperativepelvic urine culture, pre-and post-sterilized stone culture were also carried out.Results Among324patients, the stone culture showed positive (infectious stone) in91cases (28.1%). There were many kinds of bacteria, mainly including Escherichiacoli and Staphylococcus epidermidis in those infectious stones,accounting for37.4%and29.7%. The infection rates of midstream urine with infectious stones had no asignificant.difference with non-infectious stones (P>0.05).The infection of Pelviecurine in Patients with factious stones were significantly higher than those withnon-infectious stones.(p <0.05).The incidence of Positive pelvie urine culture in thesePatients with moderate or severe hydronephrosis was significantly higher than in thosewithout obvious dilatation(P<0.05).Conclusion Bacteria may constitute one of the stone nuclear elements, mainlyEscherichia coli and Staphylococcus epidermidis. Infectious stones easily result inurinary tract infection, and it was often accompanied by subclinical urinary tractinfection. Positive or negative midstream urine can not represent upper urinary tractinfections. The collections of pelvic urine and stones for culture and sensitivity are necessary, which can direct treatment of antibiotics when patients develop generalizedinfection. Therefore,it is routine to collect pelvic urine and stones for culture andsensitivity.