The American Society of Anesthesiologists (ASA) Physical Status Classification System has been in use continuously since 1961. The purpose of the system is to assess and communicate a patient’s preanesthesia medical comorbidities. The classification system in conjunction with other factors...

This practice guideline addresses perioperative pain management using local and regional anesthesia for cardiothoracic, mastectomy, and abdominal surgery in adults and children. For adults, the American Society of Anesthesiologists (Schaumburg, Illinois) Task Force on Perioperative Pain Management strongly recommends fascial...

The purpose of this guideline is to assist WHO Member States and their partners in developing and implementing balanced national controlled medicines policies to ensure their accessibility, availability and affordability for medical and scientific uses and to minimize the risk...

The International Standards for a Safe Practice of Anesthesia were developed on behalf of the World Federation of Societies of Anaesthesiologists (WFSA), a non-profit organization representing anesthesiologists in 150 countries, and the World Health Organization (WHO). The recommendations have been...

Background: Surgery-related adverse events are among the most common adverse events in-hospital. However, no comprehensive,multidisciplinary perioperative guidelines exist at the Europeanlevel. Theaimof this study is to describe the process and results in achieving European multidisciplinary consensus on perioperative patient safety...

This supplemental material has been provided by the authors to give readers additional information about their work.

Importance Platelet transfusion is a frequent procedure with benefits and risks. Objective To provide recommendations in adult and pediatric populations in whom platelet transfusions are commonly performed. Evidence Review Grading of Recommendations Assessment Development and Evaluation (GRADE) methodology was applied...

The healthcare sector contributed 5.2% of global greenhouse gas emissions in 2019, up from 4.9% in 2018.1,2 These emissions are from a variety of sources. Data from England suggest that inhaled anaesthetic agents contribute to 2% of the total emissions...

The Earth’s mean surface temperature is already approximately 1.1°C higher than pre-industrial levels. Exceeding a mean 1.5°C rise by 2050 will make global adaptation to the consequences of climate change less possible. To protect public health, anaesthesia providers need to...

Medical/surgical care has become increasingly complex as both the number and severity of comorbidities have multiplied over the years. At the same time, there have been significant advances in the practice of anesthesiology owing to developments in the education and...

Patients with pre-existing DNR orders or other advance directives regarding treatment limitations receive care from anesthesiologists during surgical and diagnostic procedures. Such directives may create professional and ethical challenges and cause additional responsibilities for the anesthesiologist. Advance directives arise in...

Revised Edition 2024

As part of its mandate to promote high-quality research, the Canadian Anesthesiologists' Society recognizes the need to ensure appropriate moral and ethical behaviour on the part of investigators who conduct clinical research with human subjects in Canada