A novel scale predicting postoperative delirium (POD) in patients undergoing cerebrovascular surgery

作者：Harasawa Nozomi^*; Mizuno Toshiko

来源：Archives of Gerontology and Geriatrics, 2014, 59(2): 264-271.

DOI：10.1016/j.archger.2014.05.007

• Delirium
• Prediction
• Scale
• Cerebrovascular surgery
• Elderly

Purpose: The purpose of this study was to develop and test a scale for predicting POD in patients undergoing cerebrovascular surgery. %26lt;br%26gt;Methods: The predictive scale for POD was composed of 32 items reflecting the strongest risk factors as determined by a literature review. The NEECHAM Confusion Scale determined POD onset and severity. %26lt;br%26gt;Results: Delirium developed in 38 (31.1%) of the 122 patients in our sample. Logistic regression revealed the following risk factors: dehydration, age, disturbance of consciousness, underlying illness, and anxiety or depression. The final scale was weighted by referring to odds ratios. The area under the curve was 0.844 (95% CI = 0.766-0.921). The possible total score on this scale was 20 points. A cutoff score of 11 was set for risk of POD (patients scoring over 12 were considered at higher risk). The median score was 8 (range: 4-9) in the non-delirium group and 13 (range: 9-16) in the delirium group (U = 499.0; df = 120; p %26lt; 0.001). Scale scores were moderately correlated with delirium duration (rho = 0.532; p %26lt; 0.001). %26lt;br%26gt;Conclusion: The present scale is a promising a tool for predicting POD but needs to be studied further.

• 出版日期2014-10