Journal of KIST Medical College
Association between Intra-vesical Prostatic Protrusion and the Severity of Lower Urinary Tract Symptoms in Patients with Benign Prostatic Hyperplasia
By Devendra Karki, Robin Joshi, Kushal Karki and 4 others.
Abstract
Introduction
Benign prostatic hyperplasia (BPH) is a common age-related condition and an important cause of lower urinary tract symptoms (LUTS) in aging men. Although pressure–flow studies are the gold standard for diagnosing bladder outlet obstruction (BOO), their invasive nature limits routine use. Intravesical prostatic protrusion (IPP), measured by ultrasonography, is a simple noninvasive parameter that may reflect BOO severity. This study evaluated the correlation between IPP and LUTS severity using International Prostate Symptom Score (IPSS).
Methods
This cross-sectional observational study included 100 men aged ?50 years presenting with LUTS suggestive of BPH. All patients underwent IPSS assessment, Transabdominal ultrasonography measured IPP, prostate volume, and post-void residual (PVR) urine, while maximum urinary flow rate (Qmax) was assessed using uroflowmetry. IPP was categorized into Grade I (<5 mm), Grade II (5–10 mm), and Grade III (>10 mm). Correlation analyses were performed between IPP, IPSS, and surrogate markers of BOO.



