Background: During COVID-19 pandemic, visitations have been prohibited in most French ICUs. We aimed to assess psychological effects, for reference persons (RPs), of experiencing remote-only communication with both caregivers and the patient during COVID-19 pandemic.Methods: All RPs of patients referred to ICU for COVID-19 were included. HADS, IES-R, and satisfaction were evaluated at admission, discharge/death and 3 months. At 3 months, an interview with a psychologist provided a qualitative description of RPs’ psychological distress.Results: Eighty-eight RPs were interviewed at patient admission and discharge, and 33 accepted the 3rd month-interview. Prevalence of anxiety and depression symptoms was 65% and 32% respectively at patient admission and 27% and 24% at discharge/death, with a significant decrease between ICU admission and discharge/death (23 [16;31] versus 16 [9;21] points, p<0.01). At 3 months, lower HADS decrease was associated with patient death/continued hospitalization, and/or sleeping disorders in RPs (p<0.01). Despite visit prohibition, 99% RPs felt the patient was safe (9 [7;10]/10 points, Likert-type scale). They also felt confident with caregivers, therapeutic decisions (10 [9;10]/10 points) and satisfied with the manner/frequency information was provided (10 [9;10]/10 points). All RPs stressed the specific-type of “responsibility” associated with being an RP in a remote-only context. The 3 salient themes turned out to be dichotomous variables: positive (9 RPs, 27%) vs. negative (24 RPs, 73%) subjective experience; wide (11 RPs, 33%) vs. narrow (22 RPs, 67%) information diffusion strategies: only a third chose to transmit the information to many relatives. Only 10 RPs (30%) related the situation to a prior traumatic experience.Conclusion: In a distressing situation, remote-only communication allowed RPs to remain involved in decision processes and maintain contact with patient and caregivers.Trial registration: NCT04385121. Registered 12 May 2020. https://clinicaltrials.gov/