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| Analysis on Related Factors of Nosocomial Infection after Ureteroscope Holmium Laser Lithotripsy in Patients with Upper Urinary Calculi |
| YANG Chao, YAO Junnan, ZHANG Shuangyang |
| Wuhan Wuchang Hospital, Hubei Wuhan 430063, China |
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Abstract Objective: To analyze the correlation between intraoperative infection, ureteroscopy and ureteral calculi in patients with intraoperative surgery, diabetes and upper urinary calculi. Methods: A total of 110 patients with upper urinary tract calculi from September 2016 to May 2018 were enrolled in our hospital. All patients underwent ureteroscopic holmium laser lithotripsy. According to whether or not nosocomial infection occurred after operation, they were divided into infected group and uninfected group. The clinical data of the patients were collected, and the risk factors of nosocomial infection after ureteroscope holmium laser lithotripsy were analyzed by Logistic regression. Results: Distribution of infection sites and pathogens: Among 24 cases of infection, urinary system infection accounted for 54.17% (13/24), digestive system accounted for 16.67% (4/24), and circulatory system infection accounted for 16.67% (4/24) ), a small number of respiratory infections 8.33% (2/24), incision infection 4.17% (1/24), 38 strains of co-cultured strains, including Escherichia coli 21.05% (8/38), Staphylococcus aureus 21.05% (8/38), the highest proportion of Enterococcus faecalis 15.79% (6/38); clinical data of the two groups: age of infection group > 60 years, length of operation > 120 min, intra-renal pressure > 30 mmHg, surgery The disinfection time of the former device was more than 10 h and the proportion of diabetic patients was higher than that of the non-infected group. The difference was statistically significant (P<0.05). There was no significant difference in the incidence and gender of the two groups (P>0.05). Multivariate regression analysis: Logistic regression analysis showed that age >60 years, duration >120 min, intra-renal pressure >30 mm Hg, preoperative instrument disinfection time <10 h, and patients with upper urinary calculi with diabetes Risk factors for nosocomial infection after ureteroscopy and holmium laser lithotripsy (P<0.05). Conclusions: Diabetes mellitus, duration of surgery >120 min, age >60 years, intrarenal pressure >30 mmHg, preoperative disinfection time <10 h, preoperative urinary tract infection are risk factors for nosocomial infection after ureteroscope holmium laser lithotripsy .
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2019, Vol. 25 
