Correlation between Overactive Bladder Syndrome and Severity of Coronary Artery Disease in Postmenopausal Women

To analyse the correlation of overactive bladder (OAB) and severity of coronary artery disease (CAD) by using Gensini score in postmenopausal women.

Observational correlation study design.

Haseki Training and Research Hospital, Istanbul, Turkey, from January 2016 to January 2018.

Female patients in postmenopausal status, who had undergone coronary angiography due to CAD in tertiary academic care centre cardiology unit, were enrolled in the study. The Gensini score of each patient was calculated by two different cardiologists and the average score was taken. All participants filled the OAB-V8 questionnaire (Validated Turkish form). The participants were separated into two groups according to the severity OAB symptoms. Patients with OAB-V8 score ≥8, were included into OAB Group and patients with OAB-V8 score <8, were enrolled into group 2 Non-OAB Group. Two groups were compared according to patients' demographic characteristics, Gensini scores, OAB-V8 scores, blood test outcomes, urinary system ultrasound, and uroflowmetry findings.

One hundred and two patients with OAB ≥8 score and 71 patients with OAB <8 score were compared. The median BMI was 28.7 (27.3-32.7) kg/m2 in OAB group and 27.5 (27.0-31.1) kg/m2 in non-OAB group (p=0.150). Additionally, OAB-V8 score and Gensini score were significantly higher in OAB group, compared to non-OAB group (25.0 (15.0-28.3) vs 4.0 (3.0-5.0), p<0.001 and 32.5 (27.8-42.7) vs. 10.0 (10.0-12.0), p<0.001, respectively). In blood chemistry, LDL level was the only marker found significantly different between groups and was significantly higher in patients with OAB (120.0 (90.0-148.5) mg/dl vs 97.0 (70.0-125.0) mg/dl, p<0.001). Multivariate regression analysis revealed that Gensini score ≥ 20 was an independent risk factor for presence of OAB. Additionally, LDL level ≥100 m/dl was the only other predictive factor for presence of OAB (2.8 times).

The frequency of OAB significantly correlated to severe CAD in postmenopausal women. Moreover, as an additional finding, postmenopausal women with higher LDL levels faced OAB syndrome more frequently. Key Words: Atherosclerosis, Coronary artery disease, Gensini score, Menopause, OAB-V8 form, Overactive bladder.