A Commentary on "Positive Psychology Interventions for Patients With Heart Disease: A Preliminary Randomized Trial".

BACKGROUND Positive psychologic characteristics have been linked to superior cardiac outcomes. OBJECTIVE Accordingly, in this exploratory study, we assessed positive psychology interventions in patients who had recently undergone a procedure to treat cardiovascular disease. METHOD Participants were randomly assigned to receive 1 of 3 different 6-week face-to-face interventions or a wait-list control condition. We assessed intervention feasibility and compared changes in psychologic outcome measures postintervention (7wk) and at follow-up (15wk) between intervention and control participants. Across the interventions, 74% of assigned sessions were completed. RESULTS When comparing outcomes between interventions and control participants (N = 55 total), there were no between-group differences post-intervention, but at follow-up intervention participants had greater improvements in happiness (β = 14.43, 95% CI: 8.66-20.2, p < 0.001), depression (β = -3.87, 95% CI: -7.72 to 0.02, p = 0.049), and hope (β = 7.12, 95% CI: 1.25-13.00, p =0.017), with moderate-large effect sizes. Efficacy of the 3 interventions was similar. CONCLUSIONS Future studies are needed to identify an optimal positive psychology intervention for cardiac patients.