Delirium may occur in a high percentage of elderly surgical patients.5 This should give rise to caution for similar potential in the sedated geriatric patient.

• 由于老年手术病人精神错乱发生比例高，因此镇静的老年患者可能导致精神错乱，需小心。远距离手术和在手术室手术一样的需要麻醉剂。