patients: mechanical ventilation duration ≥ 5 d; Sequential Organ Failure Assessment Score (max. SOFA Score ≥ 10); Cognition (MoCA ≥ 15); Posttraumatic Stress disorder is confirmed (PDS-5 [2016] Score ≥ 20 (20-item Posttraumatic Diagnostic Scale for DSM-5)); male and female patients aged 18-85 years; life expectance ≥6 months at T0; informed consent of the patient is present; sufficient knowledge of the German language in word and writing GPs: providing family doctor services for >2 years within the German statutory health care system, holding a certificate for "Basic Psychosomatic Care" (Bundesärztekammer 2001), alternatively, GP has to be a family doctor within the German statutory health care system for >10 years with adequate psychological, psychosomatic or psychiatric qualification; informed consent of the GP is present