British journal of anaesthesia
-
Many anaesthesia practitioners caring for patients with a cardiac implantable electronic device (CIED) lack the knowledge, experience, and requisite programming devices to independently manage these patients perioperatively. A recently updated ASA task force Practice Advisory presents expert opinion regarding the perioperative management of patients with CIEDs, and the Heart Rhythm Society (HRS) recently published a consensus statement on this subject in collaboration with the ASA, American Heart Association (AHA), and Society of Thoracic Surgeons (STS). The main intent of these documents is to provide recommendations that promote safe management of patients with CIEDs throughout the perioperative period and reduce the likelihood of adverse outcomes. ⋯ In emergent situations, however, or when there is no time for the requisite consultations, and in practice settings where the suggested multidisciplinary approach is simply not feasible, the anaesthesia team must still provide effective, safe perioperative management. Thus, all anaesthesiologists should become familiar with the basics of the current CIED technology and the essential tenets of perioperative CIED management. This review discusses relevant advances in CIED technology and practical perioperative management as outlined in the 2011 ASA Practice Advisory and HRS consensus statement.
-
Multicenter Study
Incidence and predictors of major perioperative adverse cardiac and cerebrovascular events in non-cardiac surgery.
Major adverse cardiac and cerebrovascular events (MACCE) represent the most common cause of serious perioperative morbidity and mortality. Our aim was to identify risk factors for MACCE in a broad surgical population with intermediate-to-high surgery-specific risk and to build and validate a model to predict the risk of MACCE. ⋯ The risk score based on seven objective and easily assessed factors can accurately predict MACCE occurrence after non-cardiac surgery in a population at intermediate-to-high surgery-specific risk.
-
Summary While complex physiological mechanisms exist to regulate and optimize tissue oxygenation under various conditions, clinical and experimental evidence indicates that anaemia, unchecked, is associated with organ injury and unfavourable outcomes. More data (especially from human studies) are needed to answer questions regarding the optimal approaches to the treatment of acute and chronic anaemia. Meantime, allogeneic blood transfusions remain the most common treatment, particularly in surgical/trauma patients and those with moderate-to-severe anaemia. ⋯ Further characterization of the mechanisms of injury is needed to appropriately balance these risks and to develop novel treatment strategies that will improve patient outcomes. Here, we present the current understanding of the physiological mechanisms of tissue oxygen delivery, utilization, adaptation, and survival in the face of anaemia and current evidence on the independent (and often, synergistic) deleterious impact of anaemia and transfusion on patient outcomes. The risks of anaemia and transfusion in the light of substantial variations in transfusion practices, increasing costs, shrinking pool of donated resources, and ambiguity about actual clinical benefits of banked allogeneic blood demand better management strategies targeted at improving patient outcomes.
-
In recent decades, a number of studies have attempted to determine whether regional anaesthesia offers convincing benefits over general anaesthesia. However, today we interpret meta-analyses more carefully, and it remains unclear whether regional anaesthesia reduces mortality. ⋯ Recent developments in technical aspects of regional anaesthesia have the potential to provide significant advantages for many patients in all age groups. Moreover, studies focusing on specific outcomes have shown benefits for regional anaesthesia used for surgery and postoperative analgesia.
-
Guidelines recommend discontinuation of clopidogrel for 7 days before a neuraxial injection, while other directives suggest that 5 days might be adequate. We examined the time course of antiplatelet activity after clopidogrel discontinuation in patients undergoing epidural injections. ⋯ These findings support the recommendation that discontinuation of clopidogrel for 5 days allows >70% of platelet function and might be adequate before a neuraxial injection is performed.