Overactive bladder is a condition where the urinary bladder is unable to perform its usual function of storage of urine efficiently. Consequently, the patient suffers from symptoms like increased urgency to pass urine and at an increased frequency. The patient may have to get up frequently at night to void the bladder. He/ she may also experience episodes of incontinence, which could interfere with his/her social life. Patients with urinary incontinence are said to be suffering from overactive bladder "wet" and patients without urinary incontinence are said to be suffering from overactive bladder "dry."
Overactive bladder becomes more common with increasing age. It often occurs due to increased muscle activity of the bladder, which could be a consequence of partial bladder obstruction, as in the case of prostate enlargement. The inner lining of the bladder could also play a role in bladder overactivity through the release of certain substances like prostaglandins, which stimulate the nerves and result in urgency.
AdvertisementPeople with diabetes are at a risk of developing overactive bladder. Diabetes affects nerves; thus if nerves supplying to the bladder are affected, there could be an error in signals going to the bladder, resulting in urgency and voiding at the wrong time. This is one of the mechanisms suggested for the occurrence of overactive bladder in diabetes.
A study was carried out to study the prevalence of overactive bladder in patients with type 2 diabetes. The patients were administered a questionnaire to find out if they suffered from symptoms of overactive bladder.
Out of the total 1359 included in the study, 22.5% reported to be suffering from overactive bladder; 11.7% of these with overactive bladder dry and 10.8% with overactive bladder wet. Overactive bladder and overactive bladder wet were 2.4 and 4.2 times more common in patients with diabetes of more than 10 years duration, and of age more than 50 years. Men and older aged individuals were more likely to suffer from overactive bladder, whereas older individuals and people with a broader waist were more likely to suffer from incontinence due to the overactive bladder.
The above study reiterates that overactive bladder is common in people suffering from diabetes especially over a long duration; hence diabetics should be routinely screened for the presence of overactive bladder to ensure early treatment and prevent complications.
1. Liu R et al. Prevalence of Overactive Bladder and Associated Risk Factors in 1359 Patients With Type 2 Diabetes. Urology 2011; 78 (5): 1040-1045.
2. Yoshida M et al. The Forefront for Novel Therapeutic Agents Based on the Pathophysiology of Lower Urinary Tract Dysfunction: Pathophysiology and Pharmacotherapy of Overactive Bladder. J Pharmacol Sci 2010; 112: 128 - 134.
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