Effects of a Prophylactic Treatment with Horseradish Root and Nasturtium Herb on Urinary Tract Infections in Individuals with Chronic Neurogenic Lower Urinary Tract Dysfunction: A Retrospective Cohort Study

INTRODUCTION: Recurrent urinary tract infections (UTIs) are common in individuals with neurogenic lower urinary tract dysfunction (NLUTD) and greatly affect their quality of life. There is currently no established prophylactic measure based on evidence. We have therefore evaluated the effects of a horseradish root and nasturtium herb product on the frequency of UTIs in a retrospective cohort. METHODS: Clinical data of patients with chronic NLUTD who were receiving the phytotherapeuticum for at least 12 months were analyzed. The number of UTIs was categorized as no UTIs, sporadic UTIs (1-2/year) and recurrent UTIs (≥3/year). The change in the annual number of patient-reported symptomatic UTIs and antibiotic prescriptions was investigated. RESULTS: Data of 43 individuals (mean age 49 ± 13 years, median NLUTD duration 17.9 years) were analyzed. The proportion of individuals with recurrent UTIs decreased significantly (p < 0.0001) from 58.1% (42.1-73.0%) to 23.3% (11.8-38.6%) during phytotherapy, whereas the proportion of individuals without UTIs increased significantly (p = 0.001) from 14.0% (5.3-27.9%) to 39.5% (25.0-55.6%). In addition, there was a significant (p = 0.008) decrease in the number of antibiotic prescriptions. CONCLUSION: Prophylactic treatment with horseradish root and nasturtium herb seems to be a promising option for the prevention of UTIs.