Risk factors to develop autonomic dysreflexia during urodynamic examinations in patients with spinal cord injury.

AIMS: The risk factors for developing autonomic dysreflexia (AD) during urodynamic (UD) examination in patients with spinal cord injury (SCI) above Th6 still remain unclear. The main goal of our study is to investigate the risk factors that could be associated with AD in these particular patients. DESIGN: Cross sectional survey. SUBJECT AND METHODS: The study was carried out in 83 patients with SCI above Th6 who were submitted to our center for a UD examination. AD was defined as a rise in systolic blood pressure above 15 mm Hg with a pulse rate below 60 beats per minute. RESULTS: The prevalence rate of AD among our patients was 54%. Univariate analysis of our study showed the following risk factors: patient's age, SCI completeness, traumatic etiology, indwelling catheter, presence of chills or sweating, anticholinergic treatment, maximum detrusor voiding pressure, detrusor pressure at maximum flow rate, detrusor external sphincter dyssynergia, and bladder outlet obstruction. Using multivariate logistic regression, we found that there are only two independent risk factors: patient's age equal to or above 45 years of age (OR = 10.995) and maximum detrusor voiding pressure equal to or above 31 cm H2 O (OR = 3.879). CONCLUSIONS: According to our results, the patient's age and maximum detrusor voiding pressure should be considered at the time of performing a UD examination in order to prevent the sudden onset of AD in patients with SCI above Th6. Neurourol. Urodynam. 36:171-175, 2017. © 2015 Wiley Periodicals, Inc.

Post Pelvic Radiotherapy Affectation of the Lower Urinary Tract Peripheral Innervation in Men.

INTRODUCTION: The periurethral electromyography (EMGs) alterations in men who underwent pelvic radiotherapy (RT), either isolated or combined with surgery, have not been frequently described in the literature. OBJECTIVE: The study aimed to compare the EMG's data in men undergoing RT versus the non-irradiated control group. MATERIAL AND METHODS: The study included 61 consecutive males, who had undergone RT (27 of them had been operated) and 99 control consecutive patients who underwent a retrospective assessment. The EMGs were performed using a concentric electrode needle perineally, localizing the sphincter by visual and auditory signal (electromyograph MMS Solar Active). RESULTS: 14.8% denervation, 62.9% reinnervation, 14.9% denervation + reinnervation and 7.4% EMG normal. The age (p < 0.001) and neurogenic bladder data (p < 0.001) are risk factors. The smaller the prostate size (obtained by rectal examination) post-RT, the more the chance for an abnormal EMG (p < 0.001). The fact of having had received RT (p < 0.001) is the only risk factor. CONCLUSION: RT produces lesions over the pudendal nerve, showing denervation even in late periods. The surgery did not behave as a risk factor.

[Usefulness of urodynamics in the treatment of mixed urinary incontinence in women with suburethral slings]. / Utilidad de la urodinámica en el tratamiento de la incontinencia urinaria femenina mixta con slings suburetrales.

OBJECTIVE: The urodynamic results in suburethral slings (SS), are contradictory. We evaluate a series on patients with stress urinary incontinence (associated or not with bladder hyperactivity) that underwent suburethral slings (SS) operations. METHODS: 42 women (age 62±12 years) with urinary incontinence underwent suburethral slings (86% TOT, 12% TVT, 2% others), 36% of them with simultaneous pelvic organ prolapse correction. Medical history and a pre and postsurgery urodynamic studies (according to ICS instructions, except when specified) were performed. RESULTS: After surgery, the improvement of urinary incontinence was lower in patients with previous detrusor hyperactivity (DH) than without DH (60% vs 81 %), and the bladder capacity (BC) was lower (123±36 ml) in patients with previous mixed urinary incontinence (MUI) versus no MUI (241±83 ml) (p=0.004). The decrease of BC was higher with previous MUI (184±92 ml vs 123±36 ml) versus no MUI (240±91 ml vs 237±78 ml), and the DH was more frequent in previous MUI and DH. There was a significant decrease of maximum flow rate (Qmax) (p=0.000) (although without clinical manifestation), and post void residual urine (p=0.007). We demonstrated a significant increase (p=0.001) of mean urethral resistance (URA): 12±9 cm H2O versus 15±12 cm H2O (without reaching obstruction range), and an improvement of detrusor contractility (W80-20): (3±4 W/m2; vs 6±17 W/m2;). CONCLUSION: We demonstrated worst results in MUI in patients with urinary incontinence undergoing SS. The urodynamic study gives a better prognosis reliability in the treatment of female urinary incontinence with SS.