The investigators attend to conduct a prospective randomized study to assess safety and efficacy of trigonal-involved vs. trigonal-sparing botox injection technique, quality of life measurement and post-injection anticholinergics use efficacy. Assessing safety by identification of side effects like constipation, urine retention....etc. efficacy is measured using Over Active Bladder Symptoms Score(OABSS) and urodynamics measures after 6 months follow up.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
efficacy of Botox injections of the bladder treating OAB using Over active bladder Symptoms score (OABSS).OABSS total score is 15.more score means more symptoms.it is divided into:1-5 &6-10&11-15 means mild &moderate&sever symptoms respectively.
Timeframe: 3 months