Analysis Of Risk Factors Of Severe Infection Complication After Flexible Ureteroscope Operation

The purpose of this article is to summarize the treatment experiences of nephrolith flexible ureteroscope and analyze the risk factors for SIRS (Systemic Inflammatory Response Syndrome) after operation as well as propose prevention measures. The method is to retrospectively analyze clinical patients (altogether 60 cases) receiving flexible ureteroscope for nephrolith from June 2014 to September 2015. This research divides the patients into two groups according to whether there are SIRS possibilities after operation and analyzes risk factors for SIRS after operation with single factor analysis and multi-factor regression analysis. Results: Among the 60 patients (36 male patients, 24 female patients), there are three patients appearing SIRS syndromes after operation with a probability of 5.0%. It is shown from single factor analysis that there are obvious differences between the two groups in bilateral operation(P=0.033), chronic renal insufficiency (P=0.017), kidney anatomy malformation (P=0.033), recent fever history due to calculus (P<0.001), lateral urinary calculus operation history (P=0.010), positive urine culture before and during operation(P<0. 001), infection indication during operation(P<0.001), magnesium ammonium phosphate calculus(P<0.001). And factors such as the age, gender, BMI, operation time, calculus size, diabetes history, solitary kidney patients, creatinine level before operation, placement of double J tubes before operation, placement of flexible ureteroscope sheath all have no obvious relevance with SIRS occurrence after operation (P>0.05). It has been further proved from multi-factor regression analysis that not placing double J tube (P=0.021), recent fever history due to calculus (P<0.001) and infection indications during operations are risk factors for SIRS after flexible ureteroscope operation. Conclusion: Not placing double J tube, recent fever history due to calculus and infection indication after operation increase the risk of SIRS occurrence after flexible ureteroscope operation. Doctors should pay attention to inquire relevant disease history, use antibiotics at early stage as well as control infection source, perfect preoperative examination to prevent occurrence of septicopyemia.