Abstract

Neurogenic lower urinary tract dysfunction (NLUTD) is common among children with myelomeningocele (MMC). If NLUTD is not appropriately managed, recurrent urinary tract infection (UTI) can persist and may affect upper urinary tract function. This study investigated the usefulness of videourodynamic study (VUDS) in the urological management of MMC. We retrospectively analyzed 57 patients with MMC who underwent VUDS and received urological treatments at the hospital, including surgeries, minimally invasive therapies, and conservative management. The baseline VUDS parameters of patients who received different treatments were evaluated, and the treatment outcomes of the different treatment subgroups were compared. There were 29 male and 28 female patients with a mean age of 24.1 ± 15.9years upon enrollment. Patients had dysuria or urinary retention (n = 42, 73.7%), urinary incontinence (n = 40, 70.2%), recurrent UTI (n = 35, 61.4%), hydronephrosis (n = 27, 47.4%), and vesicoureteral reflux (n = 26, 45.6%). VUDS revealed detrusor sphincter dyssynergia in 32 (56.1%) patients, bladder neck dysfunction in 13 (22.8%), and intrinsic sphincter deficiency in 20 (35.1%). Among them, 21 (36.8%) received surgical intervention, 17 (29.8%) minimally invasive therapy, and 19 (33.3%) conservative management. After a mean follow-up of 8.5years, the incidence rates of recurrent UTI (61.4% vs 31.6%, p = 0.001), hydronephrosis (47.4% vs 14.0%, p < 0.0001), urinary incontinence (70.2% vs 35.1%, p < 0.0001), and vesicoureteral reflux (45.6% vs 21.1%, p < 0.001) decreased. The overall global response assessment rate was 73.7%, and patients who underwent surgery had the best rate (90.5%). The predictive value of bladder compliance for treatment selection was > 20.5ml/cm H2O. VUDS can be used to comprehensively assess lower and upper urinary tract dysfunction among patients with MMC. To improve NLUTD and prevent complications, minimally invasive therapies or surgical procedures should be recommended to patients with MMC who have low bladder compliance.

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