STUDIES OF URODINAMICS

X: A Clinical Value of Uroflowmetry Simultaneous with Sphincter Electromyography

Abstract

Uroflowmetry in combination with sphincter electromyography (UFM-EMG) was performed following cystometry simultaneously with electromyography (CMG-EMG) on 149 patients with various lower urinary tract disorders. UFM-EMG was compared to CMG-EMG as a means of diagnosing detrusor-sphincter-dyssynergia. Of 85 patients etimated to be with synergia in CMG-EMG, 82 were also diagnosed as synergia in UFM-EMG. However, among 16 patients estimated to be with dyssynergia in CMG-CMG, 8 were diagnosed as dyssynergia and another 8 as synergia in UFM-EMG.
Furthermore, among 48 patients equivocal by CMG-EMG, 35 were finally diagnosed as synergia and 7 as dyssynergia in UFM-EMG. Only 6 patients remained without final diagnosis by UFM-EMG. We consider that, those who were etimated to be with synergia by CMG-EMG may not need further examination, byt those estimated to be with dyssynergia or equivocal by CMG-EMG require another check up using UFM-EMG. Eighteen patients (12.1%) were finally diagnosed as dyssynergia using UFM-EMG.
All patients examined were classified into four groups according to cystometrogram patterns namely upper moter neuron lesion (UMNL), complete lower moter neuron lesion (LMNL), incomplete LMNL, and normal. The highest incidence of dyssynergia was observed in complete LMNL (35.7%) followed by UMNL (15.8%), incomplete LMNL (12.3%), and normal (3.9%).