Cleveland Clinic journal of medicine
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Guidelines on perioperative management of patients undergoing noncardiac surgery recommend the use of prophylactic perioperative beta-blockers in high-risk patients who are not already taking them, and their continuance in patients on chronic beta-blockade prior to surgery. These recommendations were challenged recently by results of the Perioperative Ischemic Evaluation (POISE), a large randomized trial of extended-release metoprolol succinate started immediately before noncardiac surgery in patients at high risk for atherosclerotic disease. While metoprolol significantly reduced myocardial infarctions relative to placebo in POISE, it also was associated with significant excesses of both stroke and mortality. ⋯ P. J. Devereaux (co-principal investigator of POISE).
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Most surgical patients who require hospitalization are at high risk for venous thromboembolism (VTE) and should receive VTE prophylaxis, usually including pharmacologic prophylaxis. Nevertheless, rates of appropriate perioperative thromboprophylaxis remain stubbornly low, though an expansion in quality-improvement efforts has led to widespread hospital implementation of prophylaxis strategies in recent years. This article reviews important principles and recent developments in perioperative VTE prophylaxis, with a focus on key recommendations and changes in the 2008 update of the American College Chest Physicians' (ACCP) evidence-based guidelines on antithrombotic therapy.
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Obstructive sleep apnea (OSA) is associated with increased risks of cardiovascular disease and stroke and with elevated rates of postoperative complications (including cardiac ischemia and respiratory failure) in surgical patients. Additionally, the prevalence of OSA is higher in surgical patients than in the general population. Screening for OSA prior to surgery is recommended to identify patients at risk for postoperative complications. The presence of moderate or severe OSA calls for modified strategies of perioperative anesthesia, pain management, and postoperative monitoring to reduce the chance of OSA-associated complications.
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Anesthesiologists are the primary users of preoperative medical consultations (consults), but the information in consults is often of limited usefulness to anesthesiologists and the rest of the surgical and perioperative team. The purpose of a consult is not to "clear" a patient for surgery but rather to optimize a patient's underlying disease states before they are compounded by the insult of surgery. Too often consults provide advice on subjects that are in the realm of expertise of the anesthesiologist--such as the type of anesthesia to administer or what intraoperative monitoring to use--and thus risk being ignored. Consults should instead provide specific data about the patient that are pertinent to the surgery, as well as guidance on preoperative and postoperative disease management.
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Three directors of dedicated preoperative assessment clinics share their experience in setting up and running their programs. Standardizing and centralizing all or part of the preoperative evaluation process--obtaining patient records; the history and physical examination; the surgical, anesthesiology, and nursing assessments; ordering tests; and documentation and billing--increases efficiency. The savings achieved from minimizing redundancy, avoiding surgery delays and cancellations, and improved reimbursement coding offset the increased costs of setting up and running the clinic.