Purpose
To evaluate clinical implications of residual urine
sense despites of no or little post-void residual in
men with lower urinary tract symptoms
The records were obtained from the prospectively
maintained database for first-visit men with lower
urinary tract symptom (LUTS).
• Uroflowmetry, post-void residual, prostate voume,
International Prostatic Symptom Score (IPSS), and
Overactive Bladder Symptom Score (OABSS) were
checked.
• A total of 905 patients’ records were reviewed.
• Patients with comorbidities which may affect voiding
function and those with post-void residual > 20mL
were excluded.
• Finally, 421 patients were eligible for the analysis.
Propensity scores were used to match patients in
our final cohorts, based on the range of each
characteristic.
• Propensity scores were calculated for each patient
using a multivariable logistic regression model based
on the following covariates: age, prostate volume,
voided urine, maximum flow rate (Qmax) and PVR.
Propensity score-matching reduces the impact of
treatment-selection bias when estimating causal
treatment effects using observational data
Paradoxical sense of incomplete emptying is a
frequent complaint, and is associated with storage
symptoms as well as voiding symptoms.
It might be associated with overactive bladder
in terms of hypersensitivity rather than overactivity.
Joo Yong Lee, Dae Hun Lee, Woo Jin Bang1, Yoon Soo Hah, Hyung Ho Lee,
Won Sik Ham, Young Deuk Choi, Sung Joon Hong and Kang Su Cho*
Department of Urology, Severance Hospital and Urological Science Institute, Yonsei University College of Medicine, Seoul,
and 1Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
Materials and Methods
Conclusion
Results
Results
IPSS
• There was a statistically significant difference in
IPSS between the paradoxical and control groups
(23.04±5.68 versus 13.21±5.48, respectively;
P<0.001).
OABSS
• There was a statistically significant difference in
OABSS between the paradoxical and control groups
(5.15±3.46 versus 3.81±2.60, respectively;
P=0.001).
Table 1. Comparison of IPSS/QoL and OABSS between paradoxical and
control groups
Paradoxical group Control groupP-value*
(N=114) (N=114)
IPSS
Total score 23.04±5.68 13.21±5.48 <0.001
Voiding symptom
(Q3, Q5, Q6)10.26±3.54 6.06±3.43 <0.001
Storage symptom
(Q2, Q4, Q7)8.14±3.44 5.65±2.74 <0.001
Post-micturitional symptom 4.64±0.48 1.68±1.12 <0.001
Quality of life 4.51±0.80 3.53±1.05 <0.001
OABSS
Total score 5.15±3.46 3.81±2.60 0.001
Day-time frequency 0.67±0.58 0.42±0.51 0.001
Nocturia 1.76±1.02 1.51±0.95 0.059
Urgency 2.04±1.61 1.36±1.42 0.001
Urge incontinence 0.69±1.35 0.40±1.00 0.073
*Student t-test
IPSS: International Prostate Symptom Score
OABSS: Overactive Bladder Symptom Score
Poster No. 379
