The mind-body connection in irritable bowel syndrome: A randomised controlled trial of hypnotherapy as a treatment

The clinical value of psycho-gastroenterological interventions for functional esophageal symptoms

BACKGROUND

Disorders of gut-brain interaction (DGBI) are associated with high symptom burden and poor quality of life. We evaluated the clinical value of multimodal therapy with psycho-gastroenterological interventions in patients with refractory functional symptoms.

METHODS

Of 80 DGBI patients managed over a 12-month period, 26 patients undergoing multimodal therapy (median age 60.0 years, 73.1%F) were compared to 54 patients (median age 56.0 years, 68.5%F) managed using conventional approaches. Psycho-gastroenterological multimodal therapy was individualized and included relaxation training (diaphragmatic breathing, passive muscle relaxation) and gut-direct hypnotherapy/guided imagery. All patients completed documentation of symptom frequency and severity using a 100 mm visual analog scale (VAS) and assessment of health-related quality of life (BEST score) before and following therapy. Data were analyzed to determine comparative change in symptom burden between the two cohorts.

KEY RESULTS

Baseline demographics and symptom burden were similar between the two treatment subgroups. While patients improved with both multimodal and conventional therapies, BEST score demonstrated greater improvement with multimodal therapy (p = 0.03). Physician perception of symptom burden at baseline and on follow-up did not correspond to self-reported questionnaire data. On multivariable analysis, multimodal therapy (OR 7.9, 95% CI 1.8-34.6, p = 0.006) and functional esophageal disorders (OR 17.6, 95% CI 2.6-121.1, p = 0.004) predicted >50% improvement in BEST score, while the presence of psychiatric disease was a negative predictor (OR 0.22, CI 0.05-0.94, p = 0.04).

CONCLUSIONS & INFERENCES

Psychological intervention using multimodal therapy provides clinical value to the management of functional esophageal symptoms among patients refractory to conventional therapy.

Systematic review, meta-analysis with subgroup analysis of hypnotherapy for irritable bowel syndrome, effect of intervention characteristics

BACKGROUND

Hypnotherapy has been shown to be effective at relieving global gastrointestinal symptoms (GGS) in irritable bowel syndrome (IBS). This study examines the impact of hypnotherapy delivery and participant characteristics on IBS outcomes.

METHODS

This systematic review searched CINAHL, Cochrane Library, Conference Citation Index, Embase, PubMed, PsycARTICLES, PsychINFO, Science Citation index-expanded, Social Science Citation Index. Titles and abstracts, then full-text articles were screened against inclusion criteria: trials with a concurrent comparator of hypnotherapy in adults with IBS diagnosed using Manning or ROME criteria, which provided symptom data. Included studies were extracted and assessed for bias using Cochrane Collaboration 2011 guidance. Random-effects meta-analysis was conducted with sub-group analysis to assess the impact of delivery characteristics on outcomes.

RESULTS

Twelve trials were included, 7 in the meta-analyses. Hypnotherapy reduced the risk of GGS, but this was not statistically significant, (standardised mean difference (SMD) 0.24, [-0.06, 0.54], I² 66 %). Higher frequency of sessions (≥1/week) reduced GGS (SMD 0.45 [0.23,0.67] I² 0 %), as did higher volumes of intervention (≥8 sessions with ≥6 h of contact) (SMD 0.51 [0.27,0.76] I² 0 %) and group interventions (SMD 0.45 [0.03, 0.88] I² 62 %). Only volume of intervention produced a significant effect between the subgroups.

CONCLUSION

This review suggests that high volume hypnotherapy is more beneficial than low and should be adopted for GDH. Both high frequency and group interventions are effective in reducing GGS in IBS. However, the sample size is small and more studies are needed to confirm this.