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We conducted a one-year prospective follow-up study of relatives bereaved after an ICU death. The primary outcome was the prevalence of Prolonged Grief Disorder (PGD) at 12\u00a0months. Secondary analyses explored the association between grief severity and early posttraumatic stress symptoms. Among 25 bereaved relatives, 5 (20%) met criteria for probable PGD at 12\u00a0months. Grief severity at 1\u00a0year was strongly associated with posttraumatic stress symptom severity measured three months after the loss. These findings highlight the close relationship between traumatic stress and prolonged grief and provide a descriptive illustration of an ICU\u2013psychiatry liaison model implemented under crisis conditions.<\/jats:p>","DOI":"10.1177\/00302228261418452","type":"journal-article","created":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T13:30:11Z","timestamp":1770211811000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Prolonged Grief Disorder Among Relatives of Deceased Patients in Intensive Care Unit During the French COVID-19 Lockdown: Results From the OLAF Study"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-2118-0906","authenticated-orcid":false,"given":"Valentin","family":"Raymond","sequence":"first","affiliation":[{"name":"Toulouse University Hospital"},{"name":"Universit\u00e9 de Toulouse"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Camille","family":"A\u00eftout","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guillaume","family":"Ducos","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"},{"name":"INSERM - Universit\u00e9 de Toulouse: \u201cTrajectoires d\u2019innovations en sant\u00e9: enjeux bio\u00e9thiques et soci\u00e9taux\u201d"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexis","family":"Coullomb","sequence":"additional","affiliation":[{"name":"University of Toulouse, CNRS, UMR 5070, INSERM U1301, EFS, ENVT, Institut RESTORE, Toulouse, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fabrice","family":"Ferr\u00e9","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B\u00e9atrice","family":"Riu-Poulenc","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thierry","family":"Seguin","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Le\u00efla","family":"Boukhatem","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Geeraerts","sequence":"additional","affiliation":[{"name":"Universit\u00e9 de Toulouse"},{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincent","family":"Minville","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olivier","family":"Fourcade","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fanny","family":"Vardon","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christophe","family":"Arbus","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"},{"name":"Universit\u00e9 de Toulouse"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philippe","family":"Birmes","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"},{"name":"Universit\u00e9 de Toulouse"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stein","family":"Silva","sequence":"additional","affiliation":[{"name":"Universit\u00e9 de Toulouse"},{"name":"Toulouse University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juliette","family":"Salles","sequence":"additional","affiliation":[{"name":"Toulouse University Hospital"},{"name":"Universit\u00e9 de Toulouse"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,2,4]]},"reference":[{"key":"e_1_3_8_2_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0161645"},{"key":"e_1_3_8_3_1","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.200409-1295OC"},{"key":"e_1_3_8_4_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2022.2017"},{"key":"e_1_3_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eurpsy.2004.06.033"},{"key":"e_1_3_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/jts.22059"},{"key":"e_1_3_8_7_1","doi-asserted-by":"publisher","DOI":"10.1176\/appi.ajp.158.9.1480"},{"key":"e_1_3_8_8_1","doi-asserted-by":"crossref","unstructured":"Chams N. 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