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DU itself is often linked to a weak detrusor muscle (impaired contractility), however this association is weak. Both UAB and DU have been associated with diminished sensitivity to bladder volumes rather than objective detrusor weakness, suggesting both symptoms (UAB) and function (DU) have a significant component of sensory dysfunction, leading ...
The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder. The detrusor muscle remains relaxed to allow the bladder to store urine , and contracts during urination to release urine.
Atrophy of the detrusor muscle (atonic bladder is an extreme form) Hydronephrosis (congestion of the kidneys) Hypertrophy of the detrusor muscle (the muscle that squeezes the bladder to empty it during urination) Diverticula (formation of pouches) in the bladder wall (which can lead to stones and infection)
problems emptying the bladder completely (Vesical tenesmus, detrusor failure) recurrent urinary tract infections; Urodynamic tests are usually performed in urology, gynecology, OB/GYN, internal medicine, and primary care offices. Urodynamics will provide the physician with the information necessary to diagnose the cause and nature of a patient ...
Weak pelvic floor muscles, intrinsic sphincter damage, or damage to the surrounding nerves and tissue can make the urethral sphincter incompetent, and subsequently it will not close fully, leading to stress urinary incontinence. In women, childbirth, obesity, and age can all be risk factors, especially by weakening the pelvic floor muscles. [6]
Weak bladder muscles, resulting in incomplete emptying of the bladder, or a blocked urethra can cause this type of incontinence. Autonomic neuropathy from diabetes or other diseases (e.g. Multiple sclerosis ) can decrease neural signals from the bladder (allowing for overfilling) and may also decrease the expulsion of urine by the detrusor ...
The detrusor is a muscular sac that stores urine and squeezes to empty. Connected to the bottom or next of the bladder, the sphincter is a circular group of muscles that automatically stays contracted to hold the urine in. It will automatically relax when the detrusor contracts to let the urine into the urethra.
During urination, the detrusor muscle contracts, the external urinary sphincter and muscles of the perineum relax, and urine flows through the urethra [13] and exits the penis or vulva through the urinary meatus. [11] The urge to pass urine stems from stretch receptors that activate when between 300 - 400 mL urine is held within the bladder. [13]