Urinary flow patterns in infants with distal hypospadias.

Objective: To investigate preoperative urinary flow patterns in hypospadic infants and compare them to those from normal infant boys.

Patients And Methods: Twenty-one boys (median age 14.0, range 12.

Urinary flow patterns in premature males.

Purpose: We sought to assess urinary flow patterns in premature males using ultrasound flow probes.

Materials And Methods: Specifically customized ultrasound flow probes connected to a flowmeter were mounted on the penis of 29 premature males (median gestational age 31.3 weeks).

Urinary flow patterns in first year of life.

Purpose: We studied the natural development of urinary flow and lower urinary tract function in healthy male infants.

Materials And Methods: Custom-made ultrasound flow probes connected to a flowmeter were mounted on the penis in 20 infants who previously had been assessed in the immediate postnatal period. Median subject age was 10.

Urinary flow patterns of healthy newborn males.

Purpose: We assessed urinary flow patterns in newborn males using ultrasound flow probes.

Materials And Methods: Specifically customized ultrasound flow probes connected to a flowmeter were mounted on the penis of 30 newborn males. Flow data together with signals from a silent diaper alarm were sampled to a personal computer, and the flow curves were assessed with regard to configuration, maximum flow rate and voided volume.