Evaluation of the Differences between the Urodynamic Findings of Neurogenic and Idiopathic Subtypes of Detrusor Overactivity

Abstract

Aims: The aim of this study is to evaluate the differences between the urodynamic patterns and findings of the subtypes of detrusor overactivity(DOA). Methods: An analysis of the urodynamic data of 82 patients who presented for evaluation of symptoms of urinary frequency, urgency and/or urge incontinence was done. The diagnosis of DOA is based on urodynamic findings considering the classification of DOA by EAU. Of the 82 patients, 50 had idiopathic DOA and 32 had neurogenic DOA. The specific data included the frequency and amplitude of uninhibited contractions, complience, cystometric capacity, reflex volume, presence of uninhibited contraction that cause incontinence determined in urodynamy, sex and age. Results: There were 50 patients(28 women, 22 men) with a mean age of 45.0 ± 8.8 (ranging 20 to 65) years in idiopathic DOA group and 32 patients (10 women, 22 men) with a mean age of 39.7 ± 7.4 (ranging 22 to 61) years in neurogenic DOA group. The most frequent symptoms were urgency, urge incontinence, nocturia. There were no differences between 2 groups in frequence values of uninhibited contractions (0.77), reflex volume (0.665), and age (0.297). On the other hand, there were main differences in each group in terms of sex (p = 0.028 ), uninhibited contractions that cause incontinence (p = 0.00 ), amplitude (p = 0.00 ), cystometric capacity (p = 0.003 ), complience (0.004). Conclusion: DOA is a frequent cause of incontinence with symptoms of frequency, urgency and urge incontinence. The urodynamic findings of DOA is important to identify the subtypes of DOA.