This study aimed to compare ultrasonography and uroflowmetry index in recognition of bladder outlet obstruction due to benign prostatic hyperplasia. In this descriptive cross sectional study (diagnosis), 250 patients with lower urinary tract symptoms due to benign prostatic hyperplasia referred to the urology clinic of Razi Hospital in Rasht, will be enrolled. Patients with a history of surgery for prostate and urinary tract will be excluded.
Patients' information including age, irritation and obstructive symptoms of bladder (dysuria, urinary frequency, daily, urgency of urination, nocturia, straining to urinate, incomplete emptying of the bladder, reducing the pressure and urine diameter, delay in starting the urine, intermittency), urinary incontinence and acute urinary retention in the form of a standard questionnaire (International Prostate Symptom Score (IPSS)) will be recorded.
All patients will undergo ultrasonography and uroflowmetery in term of diagnosis of bladder outlet obstruction. Prostate volume; urinary residue; detrusor thickness and median lobes will be measured will be measured by transabdoinal ultrasonography. Patients will place in three ranges in terms of maximum urinary flow rate (Qmax): Qmax of less than 10 ml per second (symptomatic bladder outlet obstruction), Qmax of less than 10 ml per second and greater than 15 ml per second (equivocal), Qmax greater than 15 ml per second (normal).