Patient satisfaction after biofeedback for constipation and pelvic floor dyssynergia

Symptoms of difficult defecation such as straining, feeling of incomplete evacuation after defecation, or digital facilitation are reported by 40–74 % of patients referred with chronic consti-pation to a specialised centre [1]. These symptoms defining dyschezia are frequently associated with failure to relax the pelvic floor during attempts to defecate, best described as pelvic floor dyssynergia [2]. Treatment of chronic constipation with die-tary modification and aperients is relatively inef-fective [3]. Biofeedback therapy is claimed to be successful in 18–100 % of patients referred for chronic constipation [4]. The variability in success rate may be explained by poorly defined inclusio