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Voiding pressure (VP) measurement in children revealed no significant differences between those with and without lower urinary tract obstruction. Age and sex influenced VP, particularly in enuretic children, highlighting its role alongside urinary flow in urodynamic studies.
Area of Science:
- Pediatric Urology
- Urodynamics
Background:
- Lower urinary tract obstruction (LUTO) evaluation in children is crucial.
- Voiding pressure (VP) is a key urodynamic parameter.
Purpose of the Study:
- To investigate voiding pressure (VP) in children with and without lower urinary tract obstruction.
- To analyze the relationship between VP, age, sex, and specific uropathies.
Main Methods:
- Suprapubic catheterization for VP measurement in 100 children.
- Division into groups: no LUTO (Group I) and LUTO (Group II).
- Subgroup analysis of Group I included a control group and children with enuresis, vesicoureteral reflux, and urinary tract infections.
Main Results:
- No significant difference in VP between children with and without LUTO.
- Males exhibited higher VP than females.
- A significant correlation between age and VP was observed in enuretic children.
Conclusions:
- Voiding pressure alone is insufficient for comprehensive lower urinary tract urodynamic assessment.
- VP measurements should be integrated with urinary flow rate analysis for complete evaluation.
Abstract:
A study of voiding pressure (VP) by a suprapubic catheter was performed in 100 children. The children were divided into two groups. Group I (n=96) comprised children with no evidence of clinical, radiological and endoscopic lower urinary tract obstruction. Group II (n=4) consisted of children with a lower urinary tract obstruction. 17 children of group I, judged to be free of uropathy, were considered as the control group. There was no significant difference in the VP of this group when compared with 79 children with uropathy (group IB=47 enuretic, 19 vesicoureteral reflux and 13 urinary tract infection). The VP was studied in each of these groups in relation to sex and age. Males had higher VP than females. There was a significant correlation between age and VP in enuretic children. It was concluded that the VP was only one of the parameters for investigating the urodynamics of the lower urinary tract and should always be accompanied by a measurement of urinary flow.