title: The value of leak pressure and bladder compliance in the urodynamic evaluation of meningomyelocele patients.
abstract: A total of 61 patients with myelodysplasia underwent water cystometry and electromyography of the external sphincter. Of these patients 27 underwent video fluorourodynamics as a part of preoperative evaluation or instead of a voiding cystometrogram. Renal quantitative scintillation camera studies detected 7 patients with mild upper tract deterioration, even when other tests failed to do so. A total of 31 patients had upper tract deterioration as detected by excretory urography, ultrasound and/or renal scan studies, and were designated as group 1, while 30 had normal upper tracts and were designated as group 2. Bladder compliance in group 1 was significantly lower than that in group 2 (4.5 versus 11.3 ml./cm. water, p = 0.001). Leak pressure in group 1 was significantly higher than in group 2 (42.3 versus 26.1 cm. water, p = 0.019). In summary, patients with evidence of upper tract deterioration had lower bladder compliance and higher leak pressure than patients with normal kidneys.
authors.affiliation: Department of Urology, Tulane University School of Medicine, New Orleans, Louisiana.
authors.forename: G M
authors.initials: GM
authors.lastname: Ghoniem
authors.forename: M B
authors.initials: MB
authors.lastname: Roach
authors.forename: V H
authors.initials: VH
authors.lastname: Lewis
authors.forename: E P
authors.initials: EP
authors.lastname: Harmon
mesh_terms: D002648:Child; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008591:Meningomyelocele / Q000503:physiopathology*; D011312:Pressure; D001743:Urinary Bladder / Q000503:physiopathology*; D001750:Urinary Bladder, Neurogenic / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D014563:Urodynamics / Q000502:physiology*