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Is diabetes mellitus associated with clinical outcomes in aging males treated with transurethral resection of prostate for bladder outlet obstruction: implications from Taiwan Nationwide Population-Based Cohort Study

Authors Lin YH, Hou CP, Chen TH, Juang HH, Chang PL, Yang PS, Lin YS, Chen CL, Tsui KH

Received 31 October 2016

Accepted for publication 14 February 2017

Published 16 March 2017 Volume 2017:12 Pages 535—541


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Prof. Dr. Zhi-Ying Wu

Yu-Hsiang Lin,1–3,* Chen-Pang Hou,1,2,* Tien-Hsing Chen,2,4 Horng-Heng Juang,5 Phei-Lang Chang,1,2 Pei-Shan Yang,1,2 Yu-Sheng Lin,2,6 Chien-Lun Chen,1,2 Ke-Hung Tsui1,2

1Department of Urology, Chang Gung Memorial Hospital – Linkou, 2School of Medicine, 3Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, 4Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, 5Department of Anatomy, School of Medicine, Chang Gung University, Kwei-shan, Tao-Yuan, 6Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan, Republic of China

*These authors contributed equally to this work

Purpose: We assessed the lower urinary tract symptoms (LUTSs) and clinical outcomes between diabetes mellitus (DM) patients and non-diabetic (non-DM) patients receiving transurethral resection of prostate (TUR-P).
Methods: This analysis was a retrospective cohort study using 13 years (2000–2012) of claims data from Taiwan’s National Health Insurance Research Database (NHIRD). A total of 4,887 patients who had persistent LUTSs and underwent TUR-P for prostate enlargement (benign prostate enlargement [BPE]) were enrolled and divided into two groups: DM and non-DM groups. The patients’ characteristics, postoperative clinical outcomes, and the medication records after TUR-P were compared. Chi-square test was used for categorical variables and independent samples t-test for continuous variables. Multivariable logistic regression analysis was used to compare the risk of postoperative outcomes. Finally, we estimated the medication-free survival rate after TUR-P using Kaplan–Meier method and compared it between study groups using log-rank test.
Results: DM group patients had a higher prevalence of comorbidities. Postoperatively, the DM group had lower rates of urinary tract infection (UTI; odds ratio [OR], 0.78; P=0.009) and higher rates of urinary retention requiring catheterization (OR, 1.35; P=0.01) within 1 month after TUR-P. A higher proportion of patients with DM took anti-muscarinics (OR, 1.23; P=0.032) within the first 3 months and α-blockers (OR, 1.18; P=0.049) during 3–12 months after receiving TUR-P. Overall, the DM group patients had a worse postoperative medication-free survival compared to that of non-DM group patients (95% confidence interval [95% CI], 1.14; P=0.005).
Conclusion: DM patients require higher rates of continuing medication after TUR-P, especially anti-muscarinics in 3 months postoperatively and alpha-blocker after 3 months postoperatively. DM patients also had higher incidence of urine retention after surgery. DM patients had relatively poor treatment outcomes compared to DM-free patients.

Keywords: benign prostate hyperplasia, infection, overactive bladder, prostatectomy, urinary tract infection, lower urinary tract symptoms

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