[An immediate measurement of intravesical pressure. A natural method of a urodynamic test in children with myelodysplasia].

A comparison of bladder leak point pressure values measured during conventional filling cystometry with 8 F, and then with 4-5 F catheter was performed in 20 infants with myelodysplasia. In 12 (60%) of them, the larger catheter led to artificial findings, especially in children less than one year old. This was observed in 9 (82%) of 11 infants in this age-group. The method of impromptu bladder pressure monitoring has been introduced, in order to eliminate the risk of artificial results. It is based on testing an already spontaneously filled bladder with a fine catheter without any previous instrumentation and residual bladder emptying. The rationale of this method of urodynamic testing, based on the results of 36 investigated infants, is discussed. There is no need for special equipment, standard examination conditions close to natural conditions and time saving constitute the main advantages of this method. It can be proposed as a first step of prognostic urodynamic testing especially in the early postnatal period and in children less than two years old.