Background The traditional fear that every case of acute appendicitis will eventually
perforate has led to the generally accepted emergency appendicectomy with minimized …

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

Background: The National Anesthesia Clinical Outcomes Registry collects demographic and
outcome data from anesthesia cases, with the goal of improving safety and quality across …

BACKGROUND: Surgical care is delivered around the clock. Elective cases within the
Veterans Affairs health system starting after 4 pm appear to have an elevated risk of …

Although perioperative cardiopulmonary arrests are uncom-mon, their morbidity and
mortality have not been studied thoroughly. Because these events may differ from cardiac …

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 …

Acute appendicitis (AA) develops in a progressive and irreversible manner, even if the
clinical course of AA can be temporarily modified by intentional medications. Reliable and …

Background Laparoscopic cholecystectomies can be performed at night in high-volume
acute care hospitals. We hypothesized that nonelective nighttime laparoscopic …

Background The urgency of laparoscopic cholecystectomy for acute cholecystitis is under
debate. We hypothesized that nighttime cholecystectomy is associated with decreased …

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 …