Related Experiment Videos
Modulation of abnormal defecation dynamics by biofeedback treatment in chronically constipated children with
1Department of Pediatrics, University of Iowa Hospitals and Clinics, Iowa City 52242.
Insights
Biofeedback training significantly improves defecation dynamics in children with chronic constipation and encopresis. This approach, combined with conventional therapy, leads to better clinical recovery and normalizes bowel function.
Area of Science:
- Pediatric Gastroenterology
- Pelvic Floor Physical Therapy
Background:
- Chronic constipation and encopresis in children often involve abnormal defecation dynamics.
- Conventional treatments may not fully resolve these complex functional bowel disorders.
Purpose of the Study:
- To evaluate the efficacy of biofeedback training as an adjunct to conventional treatment for improving outcomes in children with abnormal defecation dynamics.
- To assess both physiologic and clinical outcomes following biofeedback intervention.
Main Methods:
- A randomized controlled trial was conducted with children aged 5-16 years.
- Patients were assigned to either conventional treatment alone or conventional treatment plus biofeedback.
- Outcomes, including defecation dynamics and clinical recovery, were assessed at 7 and 12 months.
Main Results:
- Eighty-six percent of patients achieved normal defecation dynamics with biofeedback.
- Biofeedback treatment significantly increased the rates of normal defecation dynamics (77% vs. 13%) and clinical recovery (55% vs. 5%) at 7 months compared to conventional treatment alone.
- Learning normal defecation dynamics strongly correlated with clinical recovery (p < 0.01).
Conclusions:
- Biofeedback training is an effective complementary therapy for children with chronic constipation and encopresis related to abnormal defecation dynamics.
- The ability to defecate balloons was not solely dependent on external sphincter and pelvic floor muscle function.
- Biofeedback enhances conventional therapeutic regimens for these pediatric patients.
Abstract:
To determine whether outcome in chronically constipated and encopretic children with abnormal defecation dynamics could be improved with biofeedback training, we randomly assigned patients, 5 to 16 years of age, to receive conventional treatment alone (n = 19) or conventional plus biofeedback treatment (n = 22) and evaluated physiologic outcome at 7 months and clinical outcome at 7 and 12 months. Eighty-six percent of patients learned normal defecation dynamics with up to six biofeedback sessions. At 7 months, 13% of conventionally treated and 77% of biofeedback-treated patients had normal defecation dynamics (p less than 0.01); one conventionally treated (5%) and 12 biofeedback-treated patients (55%) had recovered (p less than 0.01). Learning normal defecation dynamics was correlated with clinical recovery (p less than 0.01). At 7 months, 11% of patients with normal defecation dynamics after biofeedback treatment had abnormal defecation dynamics, and 71% of the biofeedback-treated patients with normal defecation dynamics recovered. At 12 months, 16% of conventionally treated and 50% of biofeedback-treated patients had recovered (p less than 0.05). Balloon defecation did not improve significantly in those who learned normal defecation dynamics. Therefore the ability to defecate balloons is apparently not dependent on the normal function of the external and sphincter and pelvic floor muscles alone. Biofeedback treatment is complementary to a good conventional therapeutic regimen in patients with abnormal defecation dynamics.