Fecal incontinence (FI) is a chronic and debilitating condition that carries a significant health, economic, and social burden. A variety of treatment modalities for FI are available.
Definitions and EtiologyFI is the symptom of involuntary loss of feces which includes (a) solid feces; (2) liquid feces; (3) passive FI defined as soiling without sensation or warning or difficulty wiping clean; and (4) coital FI. Additionally, flatal incontinence is defined as the involuntary loss of flatus; and fecal urgency is a sudden compelling, difficult to defer desire to defecate. 1 The primary factors necessary for fecal continence are an enteric content that is substantially firm and bulky, a passively distensible reservoir which is capable of evacuation, and an effective barrier to outflow. Therefore, changes in the quantity or quality of stool presented to the sphincter, the inability of the rectum to accommodate stool, damage to the anal sphincter mechanism, or an impaired sensation can result in FI. 2 As a result, common etiologies of FI include diarrhea, decreased rectal compliance (i.e., ulcerative proctitis and radiation proctitis), anal sphincter damage (i.e., trauma, obstetrical injury, and surgery), decreased perception of rectal sensation (i.e., spinal cord injury, multiple sclerosis, and diabetes mellitus), and overflow incontinence secondary to fecal retention and impaction. Other contributing factors may include psychosis with willful soiling, medication effects (i.e., laxatives, anticholinergics, antidepressants, and caffeine), and food intolerance (lactose, fructose, and sorbitol). It is also important to note that FI is often multifactorial and, thus, multiple conditions may be contributing to patients' symptoms.
EpidemiologyAccurate reporting of the incidence and prevalence of FI is challenging due to variations in the definitions of FI and the populations studied. Ng et al recently completed a systematic review on the prevalence of and factors associated with FI among community-dwelling adults. Across all 38 studies included in the review, the median prevalence of FI was 7.7%; however, this prevalence ranged from 2.0 to 20.7%. This wide range is reflective of the substantial heterogeneity of diagnostic criteria, population characteristics, and study design between the included studies. In this review, FI equally affected men (median, 8.1%; range, 2.3-16.1%) and women (median, 8.9%; range, 2.0-20.7%)
AbstractFecal incontinence (FI) is a chronic and debilitating condition that carries a significant health, economic, and social burden. FI has a considerable psychosocial and financial impact on patients and their families. A variety of treatment modalities are available for FI including behavioral and dietary modifications, pharmacotherapy, pelvic floor physical therapy, bulking agents, anal sphincteroplasty, sacral nerve stimulation, artificial sphincters, magnetic sphincters, posterior anal sling, and colostomy.