Comparison between Natural Filling Cystometry and Conventional Retrograde Filling Cystometry

Abstract

Objective: To compare the personally developed natural filling cystometry (NFC) and conventional retrograde filling cystometry (RFC) Method: NFC and RFC were performed on 15 patients with stroke. Results: Patients were classified into three groups according to their usual lower urinary tract symptom. Four patients without urinary symptom did not show any detrusor overactivity or detrusor underactivity during NFC or RFC. Of the nine patients with urinary frequency or urgency, five (55.6%) showed detrusor overactivity during NFC and two (22.2%) during RFC. Two patients with straining showed .detrusor underactivity during both tests. Conclusion: There was no significant difference of cystometric findings between NFC and RFC in case of patients without urinary symptom or with detrusor underactivity, but those patients with urinary symptom that is suspected of detrusor overactivity showed a more frequent detrusor overactivity during NFC than RFC. Therefore, NFC is thought to be a useful tool in evaluating the neurogenic bladder of stroke patients suspected of detrusor overactivity since it can detect detrusor overactivity which were less detectable in RFC.