Postoperative Delirium in Adult Patients After Elective Craniotomy Under General Anaesthesia

2017-03-23 22:23:22 | BioPortfolio


Postoperative delirium may result in many adverse complications. At present little is known about postoperative delirium in patients after crniotomy because they may manifest similar symptoms to definitely delirium for some structural brain disease. Objective of this study is to find out incidence and risk factors of postoperative delirium in patients after elective craniotomy and also the relationship of postoperative delirium with clinical outcome.


The study is a prospective single-center cohort study. Consecutive adult patients admitted to the ICU after elective craniotomy is enrolled. Richmond Agitation Sedation Scale (RASS) is used to assess level of consciousness of patients; if conditions met "RASS≥-3", the Confusion Assessment Method for the Intensive Care Unit will proceed to evaluate delirium signs in patients. Delirium is assessed every 12-hour shift within 3 days during the patient's ICU stay and ended when discharged from ICU or dead, time started at 9am and 9pm. On the third day after operation when most patients have been transferred to general ward, delirium was assessed only at 9am for follow-up studies. Patients is divided into two groups via assessment of CAM-ICU: delirium groups and non-delirium groups. Factors potentially related to postoperative delirium are collected and categorized as preoperative, intraoperative and postoperative in chronological order. Univariate analyses between delirium groups and non-delirium groups is performed. The stepwise backward logistic regression is carried out to identify the independent predictors of delirium. Patients will be followed up until hospital discharge, death or 90 days after the enrollment. Clinical outcome such as days on the mechanical ventilator, endotracheal extubation time, need for re-intubation and tracheotomy, unexpected reoperation within 72 h after surgery, length of stay in the ICU , hospital costs and mortality will be registered.

Study Design


Intensive Care


ICU, Beijing Tiantan Hospital, Capital Medical University




Capital Medical University

Results (where available)

View Results


Published on BioPortfolio: 2017-03-23T22:23:22-0400

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