Conference Highlights: Anesthesiology 2011

The American Society of Anesthesiologists’ annual meeting, Anesthesiology 2011, held on October 15-19 in Chicago, was a comprehensive education program in anesthesiology, focusing on transforming patient safety through science and innovation. The news items below highlight just some of the studies that emerged from the meeting. » Less Propofol Required for Obese Children » Certain Behaviors Lead to Poor Pediatric Surgical Outcomes  » Identifying Women at Risk for Cesarean Pain » Risk Factors for Labor Pain » Anesthetics & Postoperative Delirium in the Elderly  Less Propofol Required for Obese Children The Particulars: The Particulars: Information regarding the appropriate doses for many anesthetics in obese children is lacking. Anesthesiologists must decide whether a dose should be based on actual or lean body weight in a population for whom 75% of excess body weight consists of drug distribution-altering fat tissue. Propofol can cause low blood pressure, prolonged sleepiness, and decreased breathing. Data Breakdown: Researchers measured responses in 40 obese and 40 non-obese children 20 seconds after they received propofol. To bring about unconsciousness at the beginning of surgery, obese children needed 2 mg/kg of propofol. Normal weight children required 3.2 mg/kg of propofol to bring about unconsciousness. Take Home Pearl: Obese children appear to require 50% to 60% less propofol than normal weight children to initiate anesthesia at the beginning of surgical procedures. Certain Behaviors Lead to Poor Pediatric Surgical Outcomes [back to top] The Particulars: Determining the coping, distress, and anxiety behaviors of children and their parents prior to surgery can be challenging during anesthesia induction and following surgery. The Perioperative Adult Child Behavioral Interaction Scale (PACBIS) is thought to provide real-time measurements for determining...