Bilateral hydroureteronephrosis involves the dilatation of the renal pelvis, calyces and ureter; it develops secondary to urinary tract obstruction and leads to a build-up of back pressure in the urinary tract, and it may lead to impairment of renal function and ultimately culminate in renal failure. Although clinically silent in most cases, it can be diagnosed as an incidental finding during e...

OBJECTIVE To determine from urodynamic data what causes an increased postvoid residual urine volume (PVR) in men with bladder outlet obstruction (BOO), urethral resistance or bladder failure, and to determine how to predict bladder contractility from the PVR. PATIENTS AND METHODS We analysed retrospectively the pressure-flow studies (PFS) of 90 men with BOO. Nine patients could not void and t...

Normal bladder function depends on the complex interaction of sensory and motor pathways. Bladder dysfunction can develop as a result of several neurological conditions. It can happen in a number of ways, including diabetic cystopathy, detrusor overactivity, bladder outlet obstruction, and urge and stress urinary incontinence. Diabetic neuropathy is the most common cause of peripheral neuropath...

INTRODUCTION Most bladder stones develop in patients with bladder outlet obstruction. Intravesical stone formation after surgery outside the urinary bladder is rare. CASE PRESENTATION A 54-year-old Taiwanese woman with lower urinary tract symptoms following a hysterectomy 14 years ago presented to our hospital. The intravesical calculus had developed from non-absorbable sutures and hung on th...

Although evidence shows that urodynamic study may not improve outcomes, it can be used to evaluate men with lower urinary tract symptoms (LUTSs) which have not been adequately delineated and treated. In young men with LUTS not responding to treatment based on clinical examination, or elderly men with LUTS and incontinence, a complete urodynamic evaluation is mandatory to understand the pathophy...

Polyarteritis nodosa (PAN) of the urinary tract is rare. An unusual case of systemic PAN involving the bladder neck is described. A 27-year-old man, with known diastolic hypertension diagnosed 2 years earlier, was admitted with chronic urinary obstruction complicated by hydronephrosis. He had symptoms of myalgia and weight loss, was afebrile but had an elevated erythrocyte sedimentation rate an...

CASE REPORT. A 30 year old woman presented with acute urinary retention. She had a 3 month history of increasing difficulty passing urine. There was no history of haematuria or dysuria. An intravenous urogram revealed a large mass causing elevation of the bladder base on the right side. There was no significant ureteric obstruction, though the right ureter was slightly full (fig. 1). Ultrasound...

estimates of lower urinary tract symptoms, overactive bladder, urinary incontinence and bladder outlet obstruction. BJU Int 2011; 108: 1132–8 11 Grimes CE, Henry JA, Maraka J, Mkandawire NC, Cotton M. Costeffectiveness of surgery in lowand middle-income countries: a systematic review. World J Surg 2014; 38: 252–63 12 Gosselin RA, Thind A, Bellardinelli A. Cost/DALY Averted in a small hospital i...

Chronic urinary retention (CUR) secondary to bladder outlet obstruction (BOO) in spite of being a frequently encountered clinical problem, there are lacunae in the understanding of its patho mechanisms and management protocols in humans. International Continence Society defined CUR as “a non-painful bladder, which remains palpable or percussible after the patient has passed urine” [1]. However ...