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Urodynamic testing or urodynamics is a study that assesses how the bladder and urethra are performing their job of storing and releasing urine. Urodynamic tests can help explain symptoms such as: incontinence [1] frequent urination; sudden, strong urges to urinate but nothing comes out; problems starting a urine stream; painful urination
Urodynamic studies are an important component of the evaluation for neurogenic bladder. Urodynamics refers to the measurement of the pressure-volume relationship in the bladder. The bladder usually stores urine at low pressure and urination can be completed without a dramatic pressure rise.
JAMA Pediatrics is a monthly peer-reviewed medical journal published by the American Medical Association. [1] It covers all aspects of pediatrics.The journal was established in 1911 as the American Journal of Diseases of Children and renamed in 1994 to Archives of Pediatrics & Adolescent Medicine, before obtaining its current title in 2013.
Bladder sphincter dyssynergia (also known as detrusor sphincter dyssynergia (DSD) (the ICS standard terminology agreed 1998) [1] and neurogenic detrusor overactivity (NDO)) is a consequence of a neurological pathology such as spinal injury [2] or multiple sclerosis [3] which disrupts central nervous system regulation of the micturition (urination) reflex resulting in dyscoordination of the ...
Urodynamics – various techniques measure pressure in the bladder and the flow of urine. People are often asked to keep a diary for a day or more, up to a week, to record the pattern of voiding, noting times and the amounts of urine produced.
A voiding cystogram is a functional study where contrast "dye" is injected through a catheter into the bladder. Under x-ray the radiologist asks the patient to void (usually young children) and will watch the contrast exiting the body on the x-ray monitor. This examines the child's bladder and lower urinary tract.
Some studies have led to hypotheses that children with enuresis have altered hemodynamics during sleep (in terms of measurements of blood pressure and heart rate), sleep-disordered breathing, and altered hypothalamus function leading to a lack of bladder control during sleep.
The Valsalva maneuver is used to aid in the diagnosis of intrinsic sphincteric deficiency (ISD) in urodynamic tests. Valsalva leak point pressure is the minimum vesicular pressure associated with urine leakage.