Background The association between night/after-hours surgery and patients' mortality is
unclear. Methods The protocol of this systematic review was registered in PROSPERO …

Circadian rhythms are internal regulatory processes controlled by molecular clocks present
in essentially every mammalian organ that temporally regulate major physiological …

Background Surgery at night (incision time 17: 00 to 07: 00 hours) may lead to increased
postoperative mortality and morbidity. Mechanisms explaining this association remain …

Organ allocation for transplantation aims to balance the principles of justice and medical
utility to optimally utilize a scarce resource. To address practical considerations, the United …

Abstract Background The United States spends $12 billion each year on∼ 332,000 total hip
arthroplasty (THA) procedures with the postoperative period accounting for∼ 40% of costs …

Background: Multilevel spinal decompressions and fusions often require long anesthetic
and operative times, which may result in airway edema and prolonged postoperative …

Background Type A acute aortic dissection (TAAAD) represents a surgical emergency
requiring intervention regardless of time of day. Whether such a “evening effect” exists …

Background There is growing concern over the effect of starting non-emergent cardiac
surgery later in the day on clinical outcomes and resource utilization. Our objective was to …

Background: Due to the need for medical optimization and congested operating room
schedules, surgical repair is often performed at night. Studies have shown that work done at …

Background Previous studies in the field of organ transplantation have shown a possible
association between nighttime surgery and adverse outcomes. We aim to determine the …