Abstract
Paradoxical puborectalis contraction (PPC) and increased perineal descent (IPD) are
subclasses of obstructive defecation. Often these conditions coexist, which can make
the evaluation, workup, and treatment difficult. After a thorough history and examination,
workup begins with utilization of proven diagnostic modalities such as cinedefecography
and anal manometry. Advancements in technology have increased the surgeon's diagnostic
armamentarium. Biofeedback and pelvic floor therapy have proven efficacy for both
conditions as first-line treatment. In circumstances where PPC is refractory to biofeedback
therapy, botulinum toxin injection is recommended. Historically, pelvic floor repair
has been met with suboptimal results. In IPD, surgical therapy now is directed toward
the potentially attendant abnormalities such as rectoanal intussusception and rectal
prolapse. When these associated abnormalities are not present, an ostomy should be
considered in patients with IPD as well as medically refractory PPC.
Keywords
obstructive defecation syndrome - paradoxical puborectalis contraction - descending
perineum syndrome - increased perineal descent - dyssynergic defecation - biofeedback