Professionally perceived effectiveness of psychosocial interventions for existential suffering of terminally ill cancer patients

Background: Although integrated care for existential suffering is an essential part of palliative care, little is known about its concept and efficacy as perceived by professionals. A questionnaire survey was carried out to 1) explore the underlying structure of psychosocial interventions recommended by specialists, 2) identify the professionally perceived effectiveness of each intervention for specific existential distress, and 3) examine the effects of specialty on their recommendations. Methods: A questionnaire with three scenarios representing terminally ill cancer patients with uncertainty-related anxiety, guilt feelings, and dependency-related meaninglessness was mailed to 701 Japanese psychiatrists, 118 psychologists, and 372 palliative care nurses. Results: A total of 456 responses were obtained (response rate = 38%). Recommended psychosocial interventions were classified into six subcategories: ’a supportive-expressive approach,fl’providing comfortable environments,fl’meaning-centered approach,fl’being,fl’education and coping skills training,fland ’a religious approach.flA ’supportive-expressive approachflwas consistently recommended in all vignettes. On the other hand, ’providing comfortable environmentsflwas most recommended for patients with uncertainty-related anxiety, and a ’meaning-centered approachfland ’beingflwere most recommended for patients feeling dependency-related meaninglessness. Psychiatrists estimated the effectiveness of psychopharmacological treatment significantly higher than psychologists and nurses, while nurses evaluated efficacy of all other interventions significantly higher than psychiatrists and psychologists. Conclusions: Experts evaluated a variety of clinical interventions as effective in palliating existential suffering, although the perceived levels of efficacy of each intervention differed according to the nature of suffering and their specialties. To effectively alleviate existential suffering in terminally ill cancer patients, an integrated care by an interdisciplinary team is necessary.