Isolated bladder neck obstruction of undetermined etiology (primary) in adult male: recognition and management.

Varying degrees of isolated bladder neck obstruction of undetermined etiology were identified with micturitional vesicourethral static pressure profiles. Our experience with the urodynamic studies in 15 patients suggests that isolated bladder neck obstruction is a real entity in young adult males. Our experience also suggests that pharmacologic success with alpha-adrenergic blockade of the dosage tolerated by the patients is inconsistent. Successful clinical results achieved with appropriate bladder neck surgery could be confirmed with uroflowmetry and detailed urodynamic studies during postoperative period.