Which is a better marker for assessing LUTS : Q-max or Q-ave?

Pahwa M1, Singh M1

Research Type

Clinical

Abstract Category

Male Lower Urinary Tract Symptoms (LUTS) / Voiding Dysfunction

Abstract 720
Non Discussion Abstracts
Scientific Non Discussion Abstract Session 36
Benign Prostatic Hyperplasia (BPH) Bladder Outlet Obstruction Quality of Life (QoL) Urodynamics Techniques Questionnaire
1. Sir Ganga Ram Hospital
Links

Abstract

Hypothesis / aims of study
Lower Urinary tract Symptoms (LUTS) are one of the most common symptom complex affecting elderly aged males. One of the most common methods for assessing them is International Prostate Symptom Score (IPSS) scoring and Uroflowmetry. Much emphasis is given on maximum flow rate to define various normograms and establishing bladder outlet obstruction (BOO). This study tries to compare the relevance and superiority of average flow rate as compared to maximum flow rate in predicting severity based on IPSS scoring.
Study design, materials and methods
A total of 388 patients who presented with LUTS in urology OPD were included in the final analysis. IPSS was calculated for all the patients and categorized into mild (0-7), moderate (8-19) and severe (20-35). Patients underwent uroflowmetry and voided volume, maximum flow rate and average flow rates were calculated and considered. Coefficient of correlation was calculated for maximum and average flow rate with respect to IPSS.
Results
The mean age of study population was 62.92 ±11.46 years (range 42-85). The frequencies of mild, moderate and severe symptoms according to total IPSS were 15.98% (62/388), 43.82% (170/388) and 40.20% (156/388), respectively. The mean maximum flow rate and mean average flow rate of study population were 12.92± 6.63 and 6.97±4.02, respectively.
Interpretation of results
The correlation coefficient between average flow rate and IPSS scores was 0.632 which was significantly higher (p value <0.001) in comparison to correlation coefficient between Q-max and IPSS score (r -0.603).
Concluding message
Q-average seems to be a better marker for predicting severity based on IPSS than Q-max. Normograms can be developed in the future taking into account Q-average along with Q-max.
Disclosures
Funding None Clinical Trial Yes Public Registry No RCT No Subjects Human Ethics Committee Institutional Ethics committee, Sir Ganga Ram Hospital Helsinki Yes Informed Consent Yes
27/03/2024 17:00:11