Uroflowmetry in female voiding disturbances.

Area of Science:

• Urogynecology
• Urodynamics
• Female Lower Urinary Tract Dysfunction

Background:

• Clinical validity of uroflowmetry in women is limited by the absence of absolute normal values.
• Two methods, a specific flow/residual urine threshold (method A) and the Liverpool Nomogram (method B), have been proposed to diagnose voiding difficulties in women.
• This study aims to compare these two methods and evaluate the overall diagnostic utility of uroflowmetry in female voiding disturbances.

Purpose of the Study:

• To compare the diagnostic accuracy of two uroflowmetry analysis methods (method A and method B) in women with voiding difficulties.
• To assess the overall validity and clinical utility of uroflowmetry as a diagnostic tool in urogynaecology.

Main Methods:

• A cohort of 348 women underwent comprehensive urogynaecologic evaluation.
• Evaluable uroflowmetry results from 229 (method A) and 224 (method B) women were analyzed.
• Uroflowmetry findings were compared against pressure/flow study results using defined cut-offs and correlated with clinical variables.

Main Results:

• Both method A (OR 3.7) and method B (OR 2.8) showed significant association with voiding difficulties.
• A strong agreement was observed between the two uroflowmetry analysis methods.
• Uroflowmetry demonstrated a specificity greater than 70% and a sensitivity ranging from 50% to 100% depending on the chosen cut-offs.

Conclusions:

• Uroflowmetry exhibits good specificity and a high negative predictive value in diagnosing female voiding disturbances.
• The test possesses sufficient diagnostic capacity to be recommended as an initial diagnostic step for urogynaecologic patients.
• Either method A or method B can be reliably employed for analyzing uroflowmetry results in women.