The timing of elective surgery could affect clinical outcome because of diurnal rhythms of patient physiology as well as surgical team performance. Waiting times for elective surgery are increasing in many countries, leading to increasing interest in undertaking elective surgery in the evening or at night. We aimed to systematically review the literature on the effect of the timing of elective (but not urgent or emergency) surgery on mortality, morbidity and other clinical outcomes.

中文翻译：

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一天中的时间对择期手术结果的影响：系统评价


由于患者生理学的昼夜节律以及手术团队的表现，择期手术的时机可能会影响临床结果。在许多国家，择期手术的等待时间正在增加，导致人们对在晚上或晚上进行择期手术的兴趣越来越大。我们旨在系统评价有关择期（但不是紧急或紧急）手术时间对死亡率、发病率和其他临床结局影响的文献。