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Transcutaneous Sacral Electrical Stimulation for Chronic Functional Constipation.

Fareed Iqbal¹, Gregory P Thomas, Emile Tan

¹1 St Mark's Hospital & Academic Institute, Sir Alan Parks' Physiology Unit, Harrow, United Kingdom 2 Department of Surgery and Cancer, Imperial College London, South Kensington Campus, United Kingdom 3 Department of Surgery, Chelsea and Westminster Hospital, Fulham Road, London, United Kingdom.

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Summary

This summary is machine-generated.

Transcutaneous sacral stimulation did not significantly improve chronic constipation symptoms in this pilot study. Further research with intermittent stimulation is needed to confirm efficacy.

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Area of Science:

Gastroenterology
Neurology
Medical Devices

Background:

Transcutaneous sacral nerve stimulation (tSNS) is recognized for improving fecal incontinence.
Its efficacy for chronic constipation is less documented.

Purpose of the Study:

To evaluate the effectiveness of transcutaneous electrical stimulation over sacral nerve roots for chronic constipation.
To assess changes in constipation symptom severity and quality of life.

Main Methods:

A pilot study involving 20 patients diagnosed with chronic functional constipation (Rome III criteria).
Participants self-administered tSNS at home for 4 weeks, 12 hours daily.
Assessments included validated questionnaires (PAC-SYM, PAC-QOL, Cleveland) and a 1-week bowel diary.

Main Results:

80% of patients completed the trial; 31% reported a clinically meaningful improvement in constipation symptoms.
No statistically significant changes were observed in PAC-SYM, PAC-QOL, or Cleveland scores.
A majority of patients (68%) required concurrent laxative use during the intervention.

Conclusions:

Short-term, continuous transcutaneous sacral stimulation appears ineffective for chronic constipation.
Larger, well-powered studies employing intermittent stimulation regimens are necessary.
The study's small sample size limits definitive conclusions.