Abstract
Objective To evaluate the reliability of Montreal Cognitive Assessment (MoCA) for assessment of postoperative cognitive dysfunction (POCD) in elderly patients undergoing spinal surgery by comparing it with Mini-Mental State Examination (MMSE).Methods Sixty-three elderly patients with POCD (POCD group) and another 63 elderly patients with mental health after operation during the corresponding period (control group),of both sexes,aged 65-75 yr,undergoing spinal surgery under general anesthesia,were studied.POCD was assessed using MoCA and MMSE.The time for completion of assessment for the two methods was recorded,and the sensitivity and specificity were calculated.Results There was no significant difference in the time for completion of assessment between MoCA and MMSE (P ＞ 0.05).The sensitivity and specificity of MoCA in assessing POCD were 90％ and 84％,respectively,and of MMSE were 30％ and 97％,respectively.Compared with MMSE,the sensitivity of MoCA in assessing POCD was significantly increased,while the specificity of MoCA in assessing POCD was decreased (P ＜ 0.05 or 0.01).Conclusion MoCA can be applied for assessment of POCD in elderly patients undergoing spinal surgery. Key words: Aged; Cognitive disorders; Montreal cognitive assessment; Mini-mental state examination
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