Biofeedback review finds mixed results for functional gut symptoms
In studies of adults and children with functional gastrointestinal disorders, heart rate variability biofeedback produced mixed symptom results. Differences in patient groups and missing comparison details limit conclusions about who might benefit.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The evidence was evenly split: 2 studies reported statistically significant symptom improvements, while 2 did not find a significant difference. This does not establish a reliable overall benefit or prove that biofeedback has no effect. Different ages and disorder subtypes make the small evidence base difficult to interpret as one treatment result.
This abstract-based account lacks comparator descriptions, symptom effect sizes and individual study durations. The review's suggestion that treatment duration matters does not establish a minimum effective course or justify a treatment prescription.
What biofeedback refers to
Heart rate variability describes variation in the timing between heartbeats; biofeedback uses information about that variation. The review examined this intervention for chronic or recurring gastrointestinal symptoms across several disorder subtypes, rather than a single diagnosis.
Timing remains a question
The authors suggest a possible role for treatment duration. The abstract does not report a direct comparison of shorter and longer courses, so its proposed timing cannot establish when symptoms reliably improve or explain the mixed findings.
The original publication
The effects of heart rate variability biofeedback on functional gastrointestinal disorders: a scoping review.
Pereira AG, Fu L, Xu W et al.
Front Physiol · 2025
- PubMed ID
- 40476217
- Record checked
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