PMID- 28495595 OWN - NLM STAT- MEDLINE DCOM- 20180326 LR - 20180326 IS - 1873-5169 (Electronic) IS - 0196-9781 (Linking) VI - 93 DP - 2017 Jul TI - Low plasma leptin level at admission predicts delirium in critically ill patients: A prospective cohort study. PG - 27-32 LID - S0196-9781(17)30193-6 [pii] LID - 10.1016/j.peptides.2017.05.002 [doi] AB - The pathophysiology of delirium remains poorly understood. Low leptin level has been associated with features leading to delirium such as dysregulated immune functions and loss of neuroprotective effects. The purpose of the present study was to investigate the relationship between plasma leptin level at intensive care unit (ICU) entry and subsequent occurrence of delirium in critically ill patients. This single-center prospective cohort study in China allocated 336 critically ill patients admitted to ICU between 05/2015 and 05/2016 into a delirium group (n=102) and non-delirium group (n=234) based on whether delirium occurred during their stay at the ICU. Patients were examined at least twice daily and delirium was diagnosed using the Confusion Assessment Method for the ICU (CAM-ICU). Blood samples were obtained after ICU entry. Plasma leptin concentrations were measured by ELISA. Delirium occurred in 30.4% (102/336) of patients. Patients who developed delirium showed significantly lower leptin level at ICU entry than those who did not (6.1+/-3.2 vs. 9.2+/-5.9ng/mL; P<0.001). Low plasma leptin level at ICU entry was independently associated with subsequent occurrence of delirium (OR, 0.865; 95%CI, 0.802-0.934; P<0.001). Other independent risk factors for delirium included increasing age (OR, 1.050; 95%CI, 1.020-1.080; P=0.001) and Acute Physiology and Chronic Health Evaluation-II (APACHE-II) score (OR, 1.148; 95%CI, 1.092-1.208; P<0.001). Patients who developed delirium had a prolonged duration of ICU stay and higher mortality. Low plasma leptin level at ICU entry was associated with the occurrence of delirium in critically ill patients. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Li, Guicheng AU - Li G AD - Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China; Department of Critical Care Medicine, The First People's Hospital of Chenzhou, Luo Jia Jin Street 102, Chenzhou, Hunan 423000, China. FAU - Lei, Xiaobao AU - Lei X AD - Department of Critical Care Medicine, The First People's Hospital of Chenzhou, Luo Jia Jin Street 102, Chenzhou, Hunan 423000, China. FAU - Ai, Chenmu AU - Ai C AD - Department of Critical Care Medicine, The First People's Hospital of Chenzhou, Luo Jia Jin Street 102, Chenzhou, Hunan 423000, China. FAU - Li, Tao AU - Li T AD - Institute of Translational Medicine, University of Nanhua, Luo Jia Jin Street 102, Chenzhou, Hunan 423000, China. FAU - Chen, Zhongqing AU - Chen Z AD - Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China. Electronic address: zhongqingchen2008@163.com. LA - eng PT - Journal Article PT - Observational Study DEP - 20170508 PL - United States TA - Peptides JT - Peptides JID - 8008690 RN - 0 (Biomarkers) RN - 0 (Leptin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers/blood MH - China MH - Cohort Studies MH - Critical Illness MH - Delirium/blood/*diagnosis/mortality MH - Female MH - Humans MH - Incidence MH - Intensive Care Units MH - Length of Stay MH - Leptin/*blood MH - Male MH - Middle Aged MH - Prospective Studies MH - Risk Factors OTO - NOTNLM OT - Critically ill OT - Delirium OT - Intensive care OT - Leptin EDAT- 2017/05/13 06:00 MHDA- 2018/03/27 06:00 CRDT- 2017/05/13 06:00 PHST- 2017/02/21 00:00 [received] PHST- 2017/05/05 00:00 [revised] PHST- 2017/05/05 00:00 [accepted] PHST- 2017/05/13 06:00 [pubmed] PHST- 2018/03/27 06:00 [medline] PHST- 2017/05/13 06:00 [entrez] AID - S0196-9781(17)30193-6 [pii] AID - 10.1016/j.peptides.2017.05.002 [doi] PST - ppublish SO - Peptides. 2017 Jul;93:27-32. doi: 10.1016/j.peptides.2017.05.002. Epub 2017 May 8.