» Articles » PMID: 36835809

Sepsis-Associated Delirium: A Narrative Review

Abstract

Delirium is characterized by an acutely altered mental status accompanied by reductions in cognitive function and attention. Delirium in septic patients, termed sepsis-associated delirium (SAD), differs in several specific aspects from the other types of delirium that are typically encountered in intensive care units. Since sepsis and delirium are both closely associated with increased morbidity and mortality, it is important to not only prevent but also promptly diagnose and treat SAD. We herein reviewed the etiology, pathogenesis, risk factors, prevention, diagnosis, treatment, and prognosis of SAD, including coronavirus disease 2019 (COVID-19)-related delirium. Delirium by itself not only worsens long-term prognosis, but it is also regarded as an important factor affecting the outcome of post-intensive care syndrome. In COVID-19 patients, the difficulties associated with adequately implementing the ABCDEF bundle (Assess, prevent, and manage pain; Both spontaneous awakening and breathing trials: Choice of analgesia and sedation; Delirium assess, prevent, and manage; Early mobility and exercise; Family engagement/empowerment) and the need for social isolation are issues that require the development of conventional care for SAD.

Citing Articles

Frailty as an independent risk factor for sepsis-associated delirium: a cohort study of 11,740 older adult ICU patients.

Zheng G, Yan J, Li W, Chen Z Aging Clin Exp Res. 2025; 37(1):52.

PMID: 40011361 PMC: 11865144. DOI: 10.1007/s40520-025-02956-2.


Barriers to nurse-led delirium management in intensive care units: an integrative systematic review using COM-B model.

Almoliky M, Alkubati S, Saleh K, Alsaqri S, Al-Ahdal S, Albani G BMC Nurs. 2025; 24(1):96.

PMID: 39871327 PMC: 11770948. DOI: 10.1186/s12912-025-02704-x.


Norepinephrine titration in patients with sepsis-induced encephalopathy: cerebral pulsatility index compared to mean arterial pressure guided protocol: randomized controlled trial.

Salem M, Abosabaa M, Abd El Ghafar M, Ei-Gendy H, Alsherif S BMC Anesthesiol. 2025; 25(1):5.

PMID: 39755598 PMC: 11699758. DOI: 10.1186/s12871-024-02814-0.


Reinforcement learning model for optimizing dexmedetomidine dosing to prevent delirium in critically ill patients.

Lee H, Chung S, Hyeon D, Yang H, Lee H, Ryu H NPJ Digit Med. 2024; 7(1):325.

PMID: 39557970 PMC: 11574043. DOI: 10.1038/s41746-024-01335-x.


Nebulized Lipopolysaccharide Causes Delayed Cortical Neuroinflammation in a Murine Model of Acute Lung Injury.

Ritter K, Rissel R, Renz M, Ziebart A, Schafer M, Kamuf J Int J Mol Sci. 2024; 25(18).

PMID: 39337602 PMC: 11432715. DOI: 10.3390/ijms251810117.


References
1.
Spronk P, Riekerk B, Hofhuis J, Rommes J . Occurrence of delirium is severely underestimated in the ICU during daily care. Intensive Care Med. 2009; 35(7):1276-80. PMC: 2698979. DOI: 10.1007/s00134-009-1466-8. View

2.
Shao S, Lai C, Chen Y, Chen Y, Hung M, Liao S . Prevalence, incidence and mortality of delirium in patients with COVID-19: a systematic review and meta-analysis. Age Ageing. 2021; 50(5):1445-1453. PMC: 8247209. DOI: 10.1093/ageing/afab103. View

3.
Zaal I, Devlin J, Peelen L, Slooter A . A systematic review of risk factors for delirium in the ICU. Crit Care Med. 2014; 43(1):40-7. DOI: 10.1097/CCM.0000000000000625. View

4.
Gibb K, Seeley A, Quinn T, Siddiqi N, Shenkin S, Rockwood K . The consistent burden in published estimates of delirium occurrence in medical inpatients over four decades: a systematic review and meta-analysis study. Age Ageing. 2020; 49(3):352-360. PMC: 7187871. DOI: 10.1093/ageing/afaa040. View

5.
Bieber E, Philbrick K, Shapiro J, Karnatovskaia L . Psychiatry's role in the prevention of post-intensive care mental health impairment: stakeholder survey. BMC Psychiatry. 2022; 22(1):198. PMC: 8933991. DOI: 10.1186/s12888-022-03855-w. View