Long-Term Outcomes in Critical Care Survivorship

Survivors of critical illness frequently confront a range of enduring challenges spanning physical, cognitive and psychological domains. Physical sequelae include persistent muscle weakness, impaired exercise tolerance and chronic pain, often compounded by neuromuscular deconditioning acquired during prolonged mechanical ventilation. Cognitive deficits may encompass memory impairment, attention‐deficit and executive dysfunction that interfere with daily activities and return to work. A substantial proportion of survivors experience anxiety, depression and post‐traumatic stress disorder, which can persist for years and contribute to diminished quality of life. Socio‐economic consequences arise from prolonged dependence on home care or rehabilitation services, increased healthcare utilisation and reduced employment, imposing burdens on patients, families and health systems. Longitudinal analyses indicate that mortality rates remain elevated for five years following intensive care discharge, particularly among older adults and those with greater acute illness severity. Recognition of these interrelated outcomes has prompted integrated follow‐up programmes, encompassing early mobilisation, multidisciplinary rehabilitation and psychological support, aimed at mitigating long‐term morbidity and improving reintegration into community and work life.

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Long-Term Outcomes in Critical Care Survivorship publication trend

The graph below shows the total number of articles in long-term outcomes in critical care survivorship across all publications each year (not limited to Nature Index journals).

Technical terms

Post-intensive care syndrome (PICS): A constellation of new or worsening physical, cognitive and mental health impairments following critical illness.

ICU-acquired weakness: Generalised muscle weakness that develops after prolonged critical care admission, often associated with neuromuscular dysfunction.

Quality-adjusted life year (QALY): A composite measure of survival duration and health‐related quality of life used to assess the value of healthcare interventions.

Post-traumatic stress disorder (PTSD): A psychiatric condition characterised by intrusive memories, avoidance behaviours and hyperarousal following exposure to a traumatic event.

References

1. Post‐intensive care syndrome: its pathophysiology, prevention, and future directions. Acute Medicine & Surgery (2019).
2. An exploration of social and economic outcome and associated health-related quality of life after critical illness in general intensive care unit survivors: a 12-month follow-up study. Critical Care (2013).
3. Long-term outcomes and healthcare utilization following critical illness – a population-based study. Critical Care (2016).
4. Prevalence of post-traumatic stress disorder symptoms in adult critical care survivors: a systematic review and meta-analysis. Critical Care (2019).
5. Screening for posttraumatic stress disorder in ARDS survivors: validation of the Impact of Event Scale-6 (IES-6). Critical Care (2019).