Effectiveness of cognitive behavioural therapy administered by videoconference for posttraumatic stress disorder.

Telehealth, or health care via videoconferencing, constitutes a clinical option that makes it possible to treat patients remotely. A growing number of studies have demonstrated that telehealth is a feasible and effective method for diagnostic interviews and psychiatric consultations. However, few studies have assessed the effectiveness of psychotherapy given by videoconference. This study examines the effectiveness of cognitive behavioural therapy (CBT) administered by videoconference for posttraumatic stress disorder (PTSD). Forty-eight participants with PTSD were recruited for the study: 16 in the videoconferencing condition and 32 in a control face-to-face condition. Each participant received CBT for 16 to 25 weeks and completed various questionnaires before and after treatment. The results show a significant decline in the frequency and severity of posttraumatic symptoms after treatment in both conditions. A clinical improvement in overall functioning was also observed. No significant difference was observed in the effectiveness of the two therapeutic conditions. The examination of effect sizes supports these results. A number of clinical implications and certain avenues for future research are discussed.