[Impact of surgical treatment of benign prostatic hyperplasia on nocturia]

The aim of this study was the evaluation of effect of surgical treatment of benign prostatic hyperplasia with the methods of transurethral resection of the prostate and open prostatectomy to nocturia. Research material was based on 80 patients of whom 40 patients were treated with method of open prostatectomy and other 40 patients with method of transurethral resection of prostate gland for benign prostatic hyperplasia. All patients were in age group under 80 years old (approximate age in the group A 70.23 with variation interval of 21, and in the group B 69.37 with variation interval of 22), with value of IPSS>19 points, quantity of residual urine higher than 150 ml, the weight of benign prostatic gland hyperplasia tissue over 30 grams for method of prostate transurethral resection and over 80 grams for method of open prostatectomy. In all patients, and on two occasions, IPSS value was determined, and then again in postoperative period in intervals of 4, 8 and 12 weeks. Arithmetic mean of IPSS preoperatively in group A was 32.050 points and in group B 31.750 points. During the postoperative checkups in intervals from 4, 8 and 12 weeks, arithmetic mean of IPSS in group A was 5.400, 3.475 and 1.850 points, and in group B 11.425, 9.550 and 9.025 points. This study includes the arithmetic mean of the answers given on question about number of nocturia in preoperative period, as well as during all postoperative controls. Obtained results of this study were shown with descriptive statistics (arithmetic mean and standard deviation) and Student t-test for testing the difference of total IPSS arithmetic means and preoperational values in 4, 8 and 12 week checkup and arithmetic mean of the answers on questions on number of nocturia isolated forthe groups A and B; and also testing of difference of arithmetic means of total IPSS and arithmetic means of answers given on questions about number of nocturia preoperatively and during all post operational checkups between the groups A and B. It can be concluded that after mentioned surgical operations significant reduction of the lower urinary tract symptoms quantified by IPSS occurred. Surgical treatment of BPH had more pronounced effect on the urination symptoms in relation to filling symptoms, and nocturia was one of the most obstinate filling symptoms.