High Flow Infravesical Obstruction in Men: Symptomatology, Urodynamics and the Results of Surgery

Abstract
High flow infravesical obstruction in male patients with severe prostatism is defined by a maximum flow rate > 15 ml/s and a vesical pressure > 100 cm water at maximum flow rate. During a 9-mo. period urodynamic screening of 225 patients with prostatism revealed high flow infravesical obstruction in 16 (7%). Transurethral surgery of the prostate or bladder neck was performed in 11 of the patients, with good results observed in symptomatology as well as in maximum flow rate. A urodynamic screening program is suggested to establish the diagnosis so that these patients can benefit from surgical treatment.

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