Background: Anismus is a functional disorder characterized by dyssenergia and incoordination of pelvic floor muscular contractions at defecation. Despite normal propulsive power used when attempting to defecate, a hypertonic pelvic floor dysfunction results in non-relaxation or even paradoxical contraction of puborectalis muscle, resulting in failure to straiten the ano-rectal angle, hence impaired stool evacuation. This study aims at evaluating The Outcome of Injection of Botulinum Toxin Type A in Puborectalis Muscle in Patients with Anismus.
Methods: The study included 50 patient presented with symptoms of obstructed Defecation (OD) and were diagnosed as Anismus and failed conservative treatment and biofeedback training. Ultrasound-guided Botulinum Toxin Type A injections into Puborectalis Muscle were done. All patients were followed up for 6 month duration for obstructed defecation symptoms and manometric findings
Results: The current study included 50 with the mean age of 36.6±11.9 presented with Anismus for a mean duration of 6.8±2.64.
There was a statistically significant improvement at Longo score of obstructed defecation at 1,3,6 months when compared to the initial values ( p