Positive bladder cooling test in neurologically normal young children.
The bladder cooling test, which consists of rapid infusion of 0 to 8C saline into the bladder with simultaneous pressure measurement, was performed in 50 neurologically intact infants and children 6 months to 13 years old. The patients were referred for urodynamic investigation because of various disorders of the lower urinary tract. A positive bladder cooling test was defined as a sustained reflex detrusor contraction of about the same magnitude as the micturition contraction. The test was positive during the first 4 years of life but typically negative in children older than 5 years. These findings indicate that a positive bladder cooling test is an infant reflex response that, with the maturation of the central nervous system, becomes suppressed by descending signals from higher centers.
Geirsson
G
G
Department of Surgery, Sahlgrenska Hospital, Göteborg, Sweden.
Lindström
S
S
Fall
M
M
Gladh
G
G
Hermansson
G
G
Hjälmås
K
K
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003080:Cold Temperature; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008365:Manometry; D009130:Muscle, Smooth / Q000503:physiopathology*; D012965:Sodium Chloride; D001743:Urinary Bladder / Q000503:physiopathology*; D001745:Urinary Bladder Diseases / Q000503:physiopathology*; D014563:Urodynamics
D012965:Sodium Chloride