The studies highlighted problems with recruitment and compliance .
CONCLUSIONS : There was insufficient evidence on the efficacy of psychological therapies in NUD .
OBJECTIVES : We conducted a systematic review to determine the effectiveness of psychological interventions including psychodrama , cognitive behavioral therapy , relaxation therapy , guided imagery , or hypnosis in the improvement of  dyspepsia symptoms in patients with nonulcer dyspepsia ( NUD ) .
CONTROLLED TRIAL OF HYPNOTHERAPY IN THE TREATMENT OF SEVERE REFRACTORY IRRITABLE-BOWEL SYNDROME
30 patients with severe refractory irritable-bowel syndrome were r and omly allocated to treatment with either hypnotherapy or psychotherapy and placebo . The psychotherapy patients showed a small but significant improvement in abdominal pain , abdominal distension , and general well-being but not in bowel habit . The hypnotherapy patients showed a dramatic improvement in all features , the difference between the two groups being highly significant . In the hypnotherapy group no relapses were recorded during the 3-month follow-up period , and no substitution symptoms were observed
The studies highlighted problems with recruitment and compliance .
CONCLUSIONS : There was insufficient evidence on the efficacy of psychological therapies in NUD .
OBJECTIVES : We conducted a systematic review to determine the effectiveness of psychological interventions including psychodrama , cognitive behavioral therapy , relaxation therapy , guided imagery , or hypnosis in the improvement of  dyspepsia symptoms in patients with nonulcer dyspepsia ( NUD ) .