The value of intravesical prostatic protrusion in evaluation of bladder outlet obstruction from benign prostatic enlargement in Nigeria

Abstract

Objective: To determine the significance of intravesical prostatic protrusion in evaluation of bladder outlet obstruction from benign prostatic enlargement in Jos, Nigeria.
Patients and Method: A hospital based cross-sectional prospective study that included patients who presented to the Urology clinic of Jos University Teaching Hospital, Jos, Nigeria with clinical features of BPE. Each had IPSS, Qmax, IPP, PV, PVR and PSA measured. IPP was measured through transabdominal ultrasound scan along mid sagittal view in millimetre using a curvilinear probe 3.5 MHz. IPP was divided into three grades (grade I: <5 mm; grade II: 5–10 mm; grade III: >10 mm). Statistical analysis was done using SPSS® version 20 (SPSS, IBM, Chicago, IL, USA). Appropriate test statistics were used with p-value < 0.05 considered as significant.
Results: Eighty-seven patients aged 40–86 years were enrolled in the study. The means of age, IPSS, IPSS-v, IPSS-s, Qmax, IPP, PV, PVR and PSA – were 64.6 ± 10.2 years, 16.7 ± 7.6, 9.8 ± 3.5, 6.9 ± 3.3, 8.2 ± 3.8 ml/s, 12.9 ± 7.0 mm, 70.1 ± 50.3 mls, 78.3 ± 69.3 mls and 7.2 ± 1.9 ng/ml respectively. IPP correlated positively with IPSS (r = 0.808, p = 0.000), IPSS-S (r = 0.799, p = 0.000), IPSS-V (r = 0.717, p = 0.000), and PVR (r = 0.306, p = 0.004) but negatively with Qmax (r =−0.519, p = 0.000).
Conclusion: The IPP correlates significantly with IPSS, Qmax and PVR. Therefore, it is a valuable parameter – for evaluation of patients with BOO due to BPE.