• Szu-Han Wang, Jiun-Yi Wang, Ping-Yi Lin, Kuo-Hua Lin, Chih-Jan Ko, Chia-En Hsieh, Hui-Chuan Lin, and Yao-Li Chen.
• Organ Transplant Center, Changhua Christian Hospital, Changhua, Taiwan.
• Plos One. 2014 Jan 1;9(5):e96676.

BackgroundDelirium is one of the main causes of increased length of intensive care unit (ICU) stay among patients who have undergone living donor liver transplantation (LDLT). We aimed to evaluate risk factors for delirium after LDLT as well as to investigate whether delirium impacts the length of ICU and hospital stay.MethodsSeventy-eight patients who underwent LDLT during the period January 2010 to December 2012 at a single medical center were enrolled. The Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) scale was used to diagnose delirium. Preoperative, postoperative, and hematologic factors were included as potential risk factors for developing delirium.ResultsDuring the study period, delirium was diagnosed in 37 (47.4%) patients after LDLT. The mean onset of symptoms occurred 7.0±5.5 days after surgery and the mean duration of symptoms was 5.0±2.6 days. The length of stay in the ICU for patients with delirium (39.8±28.1 days) was significantly longer than that for patients without delirium (29.3±19.0 days) (p<0.05). Risk factors associated with delirium included history of alcohol abuse [odds ratio (OR) = 6.40, 95% confidence interval (CI): 1.85-22.06], preoperative hepatic encephalopathy (OR = 4.45, 95% CI: 1.36-14.51), APACHE II score ≥16 (OR = 1.73, 95% CI: 1.71-2.56), and duration of endotracheal intubation ≥5 days (OR = 1.81, 95% CI: 1.52-2.23).ConclusionsHistory of alcohol abuse, preoperative hepatic encephalopathy, APACHE II scores ≥16 and endotracheal intubation ≥5 days were predictive of developing delirium in the ICU following liver transplantation surgery and were associated with increased length of ICU and hospital stay.

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