Abstract
To analyze sequential changes of diabetic cystopathy based on urodynamic data in patients with diabetes mellitus. Participants included male diabetes patients who underwent a pressure flow study at Nagoya University Graduate School of Medicine, Nagoya, Japan, from April 2005 to October 2016. Patients with a previous history of lower urinary tract dysfunction were excluded. Bladder dysfunction was categorized into four urodynamic patterns: (i) normal; (ii) detrusor overactivity with normal detrusor contractility; (iii) detrusor hyperreflexia/impaired contractility; and (iv) detrusor underactivity. The urodynamic patterns were evaluated according to the presence of diabetic retinopathy and nephropathy, which was correlated to diabetes mellitus duration. Furthermore, the association of clinical factors with voiding function, as well as sensory function, was investigated. A total of 57 patients were enrolled. Detrusor overactivity with normal detrusor contractility patterns was seen only in cases with neither diabetic retinopathy nor diabetic nephropathy, whereas the prevalence of detrusor hyperreflexia/impaired contractility pattern was highest in cases with diabetic retinopathy. Detrusor underactivity pattern was found with the highest frequency in cases with both diabetic retinopathy and diabetic nephropathy. On multivariate analysis, the existence of diabetic retinopathy was only significantly correlated with bladder contractility index. Furthermore, multivariate analysis showed that first desire volume and maximum cystometric capacity were significantly positively correlated with post-void residual urine volume, and also negatively correlated with voiding efficiency independent of bladder contractility index. Diabetes patients have diverse progressive bladder dysfunction according to the diabetes stage. An optimal screening program is necessary to detect and manage diabetic cystopathy at an early stage.
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More From: International journal of urology : official journal of the Japanese Urological Association
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