Abstract:Objective: To analyze the incidence and risk factors of urethral stricture after transurethral prostate plasmatomy (PKRP). Methods: 541 patients with PKRP admitted to our hospital from January 2015 to March 2019 were selected as the research objects, followed up for 6 months to analyze the occurrence of postoperative urethral stricture. According to whether or not urethral stricture was complicated, they were divided into two groups: urethral stricture group and urethral normal group. Compared the perioperative information of the two groups, the factors with statistical significance were analyzed by logistic regression analysis. Pearson correlation was used to analyze the relationship between the independent risk factors and the maximum flow rate in patients with PKRP posterior urethral stricture. Results: Among 541 patients who received PKRP, 532 cases were followed up, with a follow-up rate of 98.34%; 31 cases of urethral stricture, with a incidence of 5.83%; by multiple factor Logistic regression analysis, preoperative urethral infection, intraoperative urethral dilatation and plastic surgery, continuous traction time, operation time and postoperative catheter retention time were independent risk factors of urethral stricture after PKRP (P<0.05); According to Pearson correlation analysis, the duration of traction, operation time and indwelling catheter time were negatively correlated with the maximum urinary flow rate (r-3.642, - 2.985, - 5.478, P 0.016, 0.025, 0.000, respectively); According to ROC curve analysis, the AUC of urethral stricture in PKRP patients with preoperative urethral infection or intraoperative urethral dilatation was 0.915, which was significantly higher than that of single index (P<0.05). Conclusion: The urethral stricture after PKRP is not uncommon. It is related to preoperative urethral infection, intraoperative urethral dilatation, continuous traction time, operation time and postoperative indwelling catheter time. The analysis of risk factors of urethral stricture after PKRP is helpful to predict the occurrence of urethral stricture, which is worthy of clinical attention.
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