Attention and working memory in resident anaesthetists after night duty: group and individual effects
Attention and working memory in resident anaesthetists after night duty: group and individual effects
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DOI：
10.1136/oem.2002.006197
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发表时间：
2004-02-01
影响因子：
4.9
通讯作者：
Becker, P
中科院分区：
文献类型：
--
作者：
Bartel, P;Offermeier, W;Becker, P
目的：调查单次夜间值班对一组麻醉科住院医师（注册员）注意力和工作记忆测量的影响。使用由其他研究人员确定的血液酒精浓度 (BAC) >0.05% 的等效效应参考点来强调个体缺陷。方法：有 33 名年龄在 26-42 岁之间的受试者。每周进行夜间值班。基线评估在夜间值班前的 08 月 15 日或 08 月 55 日进行，并在值班结束后的 24 至 25 小时后重复进行。调查问卷包括有关睡眠持续时间和斯坦福嗜睡量表的项目。在个人电脑上执行一组四项反应时间 (RT) 任务，难度逐渐增加，持续约 35 分钟。这些范围从简单的 RT 到包含工作记忆的逐渐复杂的 RT 任务。显着变化被认为是速度或准确性下降>15%。 结果：夜间值班前的平均睡眠时间为7.04 小时，夜间值班期间的平均睡眠时间为1.66 小时。组间比较显示前三项测试的平均反应速度显着延长。仅在两个更复杂的测试中，平均准确度才显着降低。在一项任务中，高达 30% 的受试者的反应速度下降了 15% 以上，总体上升至 52% (17/33)。大多数受试者的恶化情况呈不均匀分布，涉及四项任务中不超过一两项。就准确性而言，恶化的发生率随着任务复杂性的增加而增加。结论：结果与之前的小组分析基本一致。通过分析个人对睡眠剥夺的广泛反应，增加了一个新的维度。即使在相对良好的工作安排下，睡眠不足对居民的影响也不容忽视。
Aims: To investigate the effects of a single period of night duty on measures of attention and working memory in a group of residents ( registrars) in anaesthesiology. Emphasis was placed on individual deficits using a reference point of the equivalent effect of a blood alcohol concentration (BAC) >0.05% determined by other researchers.Methods: There were 33 subjects aged 26-42 years. Night duty was performed on a weekly basis. Baseline assessments were conducted at either 08 15 or 08 55 preceding night duty and repeated 24 25 hours later, just after the completion of duty. Questionnaires included items regarding duration of sleep and the Stanford Sleepiness Scale. A battery of four reaction time (RT) tasks of increasing difficulty, lasting approximately 35 minutes, was administered on a personal computer. These ranged from simple RT to progressively more complex RT tasks incorporating working memory. A significant change was regarded as >15% deterioration in respect of speed or accuracy.Results: The mean duration of sleep preceding night duty was 7.04 hours and 1.66 hours during the period of night duty. Intergroup comparisons revealed significant prolongation in mean response speed in the first three tests. Mean accuracy was significantly reduced only in respect of the two more complex tests. A >15% deterioration in response speed occurred in up to 30% of subjects on a single task, rising to 52% (17/33) overall. Deterioration occurred in a patchy distribution in most subjects, involving no more than one or two of the four tasks. As regards accuracy, the prevalence of deterioration increased with task complexity.Conclusions: Results are in general agreement with previous group analyses. A new dimension was added by the analysis of a broad spectrum of individual response to sleep deprivation. The effects of sleep loss in residents cannot be overlooked, even in a relatively benign work schedule.