Anorectal disorders are common in general practice and the incidence of chronic anal fissure is 2.5 cases per 1000 persons in the Netherlands. A chronic anal fissure (CAF) refers to a longitudinal... Show moreAnorectal disorders are common in general practice and the incidence of chronic anal fissure is 2.5 cases per 1000 persons in the Netherlands. A chronic anal fissure (CAF) refers to a longitudinal ulcer or tear in the squamous epithelium, generally located in the posterior midline with symptoms present for longer than 4-6 weeks or recurrent fissures. The classical symptom is pain during defecation, which may persist for hours, and has a significant impact on quality of life.Although some debate exists on the pathogenesis of CAF, it is assumed that pain causes an increased anal sphincter tone leading to ischemia which inhibits fissure healing, generating a vicious circle of pain and constipation.Pelvic floor dysfunction e.g., dyssynergia and/or increased pelvic floor muscle tone may also be an underlying cause and part of the pathophysiology and a reason for unresponsiveness to treatment.A digital rectal examination including examination of the pelvic floor muscles and a comprehensive evaluation of the pelvis and surrounding structures is important to determine the underlying cause of pain and pelvic floor dysfunction.According to current guidelines, the initial conservative management is comprised of fibre intake and/or use of laxatives, toilet behaviour, lifestyle advice, sitz baths, and ointments.In the Pelvic floor Anal Fissure (PAF) study, we demonstrated that pelvic floor physical therapy yields a significant and clinical benefit in the time course and should be advocated as adjuvant conservative treatment in patients with CAF. Show less
Background: A chronic anal fissure is a common, painful condition with great impact on daily life. The exact pathogenesis has not been fully elucidated and treatment varies. A large percentage of... Show moreBackground: A chronic anal fissure is a common, painful condition with great impact on daily life. The exact pathogenesis has not been fully elucidated and treatment varies. A large percentage of patients experience pelvic floor dysfunction (dyssynergia and increased pelvic floor muscle tone). The aim of our study was to investigate the effect of pelvic floor physical therapy in patients with chronic anal fissure. Methods: Between December 2018 and July 2021, at the Proctos Clinic in the Netherlands, patients with chronic anal fissure and pelvic floor dysfunction were randomly assigned to an intervention group, receiving 8 weeks of pelvic floor physical therapy including electromyographic biofeedback or assigned to a control group receiving postponed pelvic floor physical therapy. The primary outcome was muscle tone at rest during electromyographic registration of the pelvic floor before and after pelvic floor physical therapy. Secondary outcomes contained healing of the fissure, pain ratings, improvement of pelvic floor function, and complaint reduction measured with a proctology-specific patient-reported outcome measurement. Endpoints were measured at 8- and 20-week follow-up. Results: One hundred forty patients were included in the study, 68 men (48.6%) and 72 women (51.4%) with a mean age of 44.5 +/- 11.1 (range 19-79) years. Mean resting electromyographic values of the pelvic floor in the intervention group significantly improved from pre- to post-treatment (p < 0.001) and relative to controls (mean estimated difference between groups - 1.88 mu V; 95% CI, - 2.49 to - 1.27 (p < 0.001) at first follow-up and remained significant from baseline at 20-week follow-up (p < 0.001). The intervention group performed better compared to the control group on all secondary outcomes, i.e., healing of the fissure (55.7% of the patients vs 21.4% in control, pain ratings (p < 0.001), diminished dyssynergia (p < 0.001), complaint reduction (p < 0.001), and decrease of pelvic floor muscle tone (p < 0.05) at first follow-up. Conclusions: The findings of this study provide strong evidence that pelvic floor physical therapy is effective in patients with chronic anal fissure and pelvic floor dysfunction and supports its recommendation as adjuvant treatment besides regular conservative treatment. Show less
