A Study on Recovery of Dynamic Balance from Intravenous Sedation and Day Stay Anesthesia

背景：涉及重心移动的动态平衡对于评价静脉镇静和日间停留麻醉后的街道适宜性是最重要的。研究1的目的是比较丙泊酚和咪达唑仑静脉镇静后动态平衡的恢复情况。镇静结束后40min，丙泊酚组动平衡测试值明显低于咪达唑仑组。镇静结束后70min和至少30min，异丙酚组数字符号替代试验和握力试验均显著高于咪达唑仑组。综上所述，丙泊酚镇静组的动态平衡功能恢复较咪达唑仑镇静组快。这一结果可能源于精神运动功能和肌肉力量恢复过程的差异。在研究2中，受试者是在全麻(空气-氧气-七氟醚)下接受手术时间在2小时内的口腔手术患者。作为精确的动态平衡测试，对不可预测的干扰刺激的姿势控制能力测试，有意身体倾斜测试，以及使用带足部压力传感器的床单进行步行分析测试。作为简单的动态平衡测试，受试者从椅子上站起来，以最大速度前后行走3m，然后再次坐下，进行总平衡运动功能测试。全身麻醉停止后150分钟内恢复对扰动刺激的平衡控制能力、有意身体倾斜能力、正常速度行走能力。全麻停药后210min内恢复平衡运动功能。全麻停药后210分钟以上能力恢复率达80%左右。

Background : Dynamic balance involving movement of the center of gravity is most important for the evaluation of street fitness after intravenous sedation and day stay anesthesia.The purpose of study 1 was to compare the recovery of dynamic balance after intravenous sedation with propofol arid midazolam. The values of dynamic balance test in computerized dynamic posturography were significantly lower in propofol group than in midazolam group 40 min after the end of sedation. The values of digit symbol substitution test and grip strength test were significantly greater in propofol group than in midazolam group 70 min and at least 30 min after the end of sedation, respectively. In summary, recovery of dynamic balance function in propofol sedation was more rapid than that in midazolam sedation. This result may derive from the difference in the recovery process of psychomotor function and muscle strength.In study 2,the subjects were patients to be undergone oral surgery in which surgical time was within 2 hours with general anesthesia (air-oxygen-sevoflurane). As precise dynamic balance tests, postural control ability test against unpredictable perturbation stimuli, intentional body leaning test, and walking analyzing test using sheet with foot pressure sensor were performed. As simple dynamic balance test, total balance-motor function test in which subjects stand up from a chair, walk 3 m forward and back with maximum speed walking, and sit down again were performed. The recovery times of ability of balance control against perturbation stimuli, intentional body leaning, and normal speed walking were all within 150 minutes after cessation of general anesthesia. The recovery time of total balance-motor function was within 210 minutes after cessation of general anesthesia. The rate of the patients who recovered above abilities reached up to about 80% 210 minutes after cessation of general anesthesia.