Effects of an online information tool on post-traumatic stress disorder in relatives of intensive care unit patients: a multicenter double-blind, randomized, placebo-controlled trial (ICU-Families-Study).

Hoffmann, Magdalena; Jeitziner, Marie-Madlen; Riedl, Regina; Mueller, Gerhard; Peer, Andreas; Bachlechner, Adelbert; Heindl, Patrik; Burgsteiner, Harald; Schefold, Joerg C; von Lewinski, Dirk; Eller, Philipp; Pieber, Thomas; Sendlhofer, Gerald; Amrein, Karin (2023). Effects of an online information tool on post-traumatic stress disorder in relatives of intensive care unit patients: a multicenter double-blind, randomized, placebo-controlled trial (ICU-Families-Study). Intensive care medicine, 49(11), pp. 1317-1326. Springer 10.1007/s00134-023-07215-4

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PURPOSE

Intensive care unit (ICU) hospitalization is challenging for the family members of the patients. Most family members report some level of anxiety and depression, sometimes even resulting in post-traumatic stress disorder (PTSD). An association has been reported between lack of information and PTSD. This study had three aims: to quantify the psychological burden of family members of critically ill patients, to explore whether a website with specific information could reduce PTSD symptoms, and to ascertain whether a website with information about intensive care would be used.

METHOD

A multicenter double-blind, randomized, placebo-controlled trial was carried out in Austria and Switzerland.

RESULTS

In total, 89 members of families of critically ill patients (mean age 47.3 ± 12.9 years, female n = 59, 66.3%) were included in the study. 46 relatives were allocated to the intervention website and 43 to the control website. Baseline Impact of Event Scale (IES) score was 27.5 ± 12.7. Overall, 50% showed clinically relevant PTSD symptoms at baseline. Mean IES score for the primary endpoint (~ 30 days after inclusion, T1) was 24 ± 15.8 (intervention 23.9 ± 17.9 vs. control 24.1 ± 13.5, p = 0.892). Hospital Anxiety and Depression Scale (HADS - Deutsch (D)) score at T1 was 12.2 ± 6.1 (min. 3, max. 31) and did not differ between groups. Use of the website differed between the groups (intervention min. 1, max. 14 vs. min. 1, max. 3; total 1386 "clicks" on the website, intervention 1021 vs. control 365). Recruitment was prematurely stopped in February 2020 due to coronavirus disease 2019 (COVID-19).

CONCLUSION

Family members of critically ill patients often have significant PTSD symptoms and online information on critical illness did not result in reduced PTSD symptoms.

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5 Citations in Web of Science ®
6 Citations in Scopus

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