Introduction: Available short-acting intrathecal anesthetic agents (chloroprocaine and prilocaine) offer an alternative to general anesthesia for short-duration surgical procedures, especially ambulatory surgeries. Factors determining the choice of anesthesia for short-duration procedures have not been previously identified. Methods: This observational, prospective, multicenter, cohort study was conducted between July 2015 and July 2016, in 33 private or public hospitals performing ambulatory surgery. The primary objective was to determine the factors influencing the choice of anesthetic technique (spinal or general anesthesia). Secondary outcomes included efficacy of the anesthesia, time to hospital discharge, and patient satisfaction. Results: Among 592 patients enrolled, 309 received spinal anesthesia and 283 underwent general anesthesia. In both study arms, the most frequently performed surgical procedures were orthopedic and urologic (43.3% and 30.7%, respectively); 66.1% of patients were free to choose their type of anesthesia, 21.8% chose one of the techniques because they were afraid of the other, 16.8% based their choice on the expected ease of recovery, 19.2% considered their degree of anxiety/stress, and 16.9% chose the technique on the basis of its efficacy. The median times to micturition and to unassisted ambulation were significantly shorter in the general anesthesia arm compared with the Enhanced Digital Features To view enhanced digital features for this article go to https://doi.org/10.6084/ m9.figshare.11210276.

Objectives: Since pain and postoperative nausea and vomiting (PONV) are the main reasons for failed discharge after day-case surgery, assessing pain and PONV is important. The aim was to describe the perioperative pain and PONV management within selected day-case surgical procedures in France. Methods: The OPERA trial was carried out on given days between December 2013 and December 2014. Each participating centre was required to fill out 3 separate questionnaires aiming at describing (1) protocols about pain and PONV, (2) patients' characteristics and procedures, (3) analgesic and PONV practice patterns for selected procedures. Results: Over the two days of investigation in each of the 221 randomly selected healthcare institutions, 7382 patients were included, of whom 2144 patients above 12 years underwent one of 10 selected procedures. Among responding institutions, 40% [33;47] had a dedicated pain management written protocol. Combination of tramadol and paracetamol was the most commonly prescribed (78% [71;83] of centres). Oral morphine was prescribed in 59/199 (30% [23; 37]) centres, for home treatment in 25/59 (42% [30; 56]) centres. However, there was no standardised take-home analgesic and PONV strategies for selected surgical procedures at risk of moderate to severe pain. PONV management guidance after discharge was included in only 12 % of centres. Conclusion: This survey demonstrates that practice patterns for pain treatment and PONV prophylaxis after ambulatory surgery vary among French centres and are not always in line with national guidelines. Strategies to improve practices and make them more homogeneous are necessary.

The present Clinical Practice Guidelines for pediatric tonsillectomy in France should improve clinical and organizational practices to enhance patient safety. They seek to ensure optimal conditions of care for all children undergoing tonsillectomy.

Anesthesia and surgery are associated with fatigue and sleep disorders, suggestive of disturbance of the circadian rest-activity rhythm. Previous studies on circadian rhythm disturbance were focused on patients undergoing general anesthesia associated with surgery. This does not permit one to draw valid conclusions about the effects of general anesthesia per se on circadian rhythms. Our study was set up to determine the impact of a hypnotic dose of propofol on the circadian rest-activity rhythm in humans under real-life conditions. Seventeen healthy subjects scheduled to receive light propofol anesthesia for ambulatory colonoscopy were investigated. Their rest-activity rhythms were assessed using actigraphic monitoring. Diurnal rest was increased, whereas nocturnal sleep was unchanged in the days following anesthesia. Nonparametric analyses showed a decrease in the strength of coupling of the rhythm to stable environmental zeitgebers and increase of fragmentation of the rhythm after anesthesia. Light general anesthesia itself impairs synchronization of the circadian rest-activity rhythm to local time in patients by acting directly on the circadian clock.

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