Highlights
Family members of critically ill ICU patients described PTSD symptoms as the result of accumulating stressors across the entire illness journey, not a single traumatic incident.
Three recurring phases shaped distress: sudden illness onset and life disruption, the emotionally and physically stressful ICU environment, and the preparation for and experience of dying in the ICU.
Clinician communication, uncertainty, witnessing suffering, and the perceived “torture” of invasive treatments were central triggers for intrusive memories and persistent psychological distress.
The study supports continuous, family-centered psychosocial support throughout the ICU stay, especially during prognostic conversations and end-of-life transitions.
Study Background
Family members of ICU patients often experience severe psychological distress, including anxiety, depression, complicated grief, and post-traumatic stress disorder (PTSD). This burden is especially pronounced when a loved one requires invasive mechanical ventilation, prolonged intensive care, or dies in the ICU. Unlike many medical settings, the ICU combines high-acuity technology, uncertainty, rapid clinical change, and emotionally charged decisions, all of which can shape a relative’s memory of the event. For some families, the ICU experience becomes a lasting psychological trauma with symptoms that persist months after discharge or death.
PTSD in this context is clinically important because it can impair sleep, mood, concentration, relationships, and long-term health-related quality of life. It may also interfere with bereavement adaptation after a patient dies. Quantitative studies have documented the prevalence of family PTSD symptoms, but they cannot fully explain which moments or processes within the ICU trajectory are most traumatic. This qualitative study addresses that gap by examining how family members themselves describe the triggers of their symptoms.
Study Design
This was a qualitative thematic study conducted through in-depth, semi-structured interviews. The investigators included family members of adult ICU patients who had received invasive mechanical ventilation for at least 48 hours and who had clinically significant PTSD symptoms three months after ICU discharge or death.
Of 18 eligible relatives approached, 17 agreed to participate. Eight participants were bereaved relatives, and nine were relatives of patients alive at six months. The mean participant age was 45 years, with a range from 21 to 70 years. Interviews were lengthy and detailed, lasting a mean of 1 hour 38 minutes, with a range from 49 minutes to 2 hours 35 minutes. Thematic analysis was used to identify recurring patterns across interviews.
The study outcome was not symptom prevalence but the lived experience of ICU-related trauma: what relatives remembered, what they found most distressing, and how different events contributed to PTSD symptom formation over time.
Key Findings
Three major themes emerged.
1) Biographical trajectories and ICU admission
Relatives commonly described the patient’s deterioration as sudden, shocking, and deeply destabilizing. The ICU admission interrupted ordinary life almost immediately, often without adequate time to prepare emotionally or practically. Many participants expressed guilt, wondering whether they had missed warning signs, delayed care, or failed to advocate strongly enough. This self-blame was particularly painful when the illness developed quickly and unpredictably.
Beyond guilt, relatives described profound disruption of daily life. Work, childcare, finances, travel, and family routines were upended. The psychological impact was not limited to the ICU event itself; it was shaped by the broader personal and social context in which the event occurred. In other words, the same ICU course could feel more traumatic when it collided with pre-existing stress, limited social support, or major family obligations.
2) Navigating the ICU environment
The ICU setting itself was frequently described as frightening and alien. Participants emphasized the technical nature of the environment: alarms, monitors, tubing, ventilators, and other devices created a sense of overload and loss of control. For many relatives, the patient looked transformed, leading to distressing memories that were difficult to erase.
Relatives also spoke about altered relationships with the patient. Communication was often limited by sedation, delirium, intubation, or the patient’s fluctuating consciousness. This made it hard to know whether the patient was suffering, understanding what was happening, or able to respond. Witnessing this uncertainty was emotionally exhausting. Several participants conveyed a sense of vicarious suffering, meaning that watching the patient’s pain or dependence produced intense distress in the relative themselves.
Waiting was another major trigger. Families described long periods of anticipation between updates, procedures, and clinical decisions. During these pauses, they often imagined the worst possible outcomes. Waiting did not simply reflect time passing; it amplified helplessness, ambiguity, and hypervigilance. The result was a prolonged state of stress that could sensitize relatives to later traumatic reminders.
3) Dying and death in the ICU
The end-of-life phase was especially emotionally charged. Some relatives described the period of preparation for death as both necessary and painful, particularly when clinicians explained that treatment was no longer effective. Conversations about limits of care were often experienced as emotionally difficult but also crucial in helping families understand what was happening. When communication was compassionate and clear, it could reduce confusion; when it was rushed or ambiguous, it could intensify distress.
Participants also focused on their interactions with medical devices during the dying process. For some, the machinery symbolized hope and rescue; for others, it symbolized prolonged suffering. The visual and auditory presence of life-sustaining devices at the end of life could become part of the traumatic memory. The exact moment of death was often described as emotionally overwhelming, with grief, shock, relief, and guilt occurring simultaneously.
Importantly, the study suggests that PTSD symptoms were rarely linked to a single dramatic event. Instead, they appeared to emerge from the cumulative effect of many stressors across the illness trajectory: the sudden onset, the ICU atmosphere, repeated uncertainty, poor or incomplete understanding of the patient’s condition, and the emotional intensity of death or survival with severe disability.
Expert Commentary
This study is valuable because it moves beyond prevalence estimates and asks a more clinically useful question: what exactly in the ICU experience becomes traumatic for families? The answer is not limited to code events, mechanical ventilation, or death alone. Trauma appears to be distributed across time and reinforced by repetition, ambiguity, and emotional isolation.
Several findings align with current understanding of family-centered critical care. First, relatives need timely, honest, and empathetic communication that is repeated over time rather than delivered as a one-time update. Second, they need preparation for transitions, especially when prognosis worsens or death becomes likely. Third, the ICU team should recognize that family distress is often cumulative and may be intensified by guilt, prior caregiving burden, and household disruption.
From a practical standpoint, this work supports interventions that are longitudinal rather than event-based. Examples include structured family meetings, consistent messaging from the care team, explanation of the purpose of ICU devices, attention to delirium and sedation-related changes in patient appearance, and support from psychology, social work, chaplaincy, or palliative care when appropriate. Family information leaflets and survivorship/bereavement follow-up may also help.
The study has limitations typical of qualitative research. The sample was small and drawn from relatives who already had clinically significant PTSD symptoms, so the findings may over-represent the experiences of the most distressed families. The setting, culture, and organization of ICU care may also affect generalizability. Nevertheless, the depth of the interviews provides a rich account of how trauma develops in context, which is exactly the kind of insight that quantitative surveys often miss.
Clinical Implications
For ICU clinicians, the main message is that family distress begins early and can accumulate at every step of the trajectory. Trauma-informed ICU care should therefore include:
• early acknowledgment of uncertainty and emotional strain
• repeated, jargon-free communication about the patient’s condition and devices
• explicit preparation for major turning points, including deterioration and end-of-life decisions
• active attention to guilt, self-blame, and helplessness in relatives
• access to palliative care, psychology, or bereavement support when needed
These measures may not eliminate PTSD risk, but they can reduce preventable distress and improve the family’s experience of critical illness.
Conclusion
This qualitative study shows that family PTSD symptoms after ICU exposure are usually shaped by multiple interconnected triggers rather than a single traumatic moment. Sudden illness onset, the intimidating ICU environment, prolonged uncertainty, and emotionally intense end-of-life experiences all contribute to the psychological burden. The findings reinforce the need for continuous, family-centered support throughout the ICU stay, with especially careful communication during transitions and end-of-life care.
Funding and ClinicalTrials.gov
Funding details were not specified in the provided study summary. ClinicalTrials.gov registration was not reported, which is not unexpected for a qualitative thematic study.
References
1. Kentish-Barnes N, Denise T, Renet A, Reignier J, Souppart V, Etain B, Pochard F, Azoulay E. “It was torture for him, and it was torture for us to see him like that”: understanding multiple ICU-related triggers of family PTSD symptoms-a qualitative thematic study. Intensive Care Med. 2026 Jun 10. doi: 10.1007/s00134-026-08504-4. Epub ahead of print. PMID: 42268369.
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