Articles: postoperative-complications.
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Curr Opin Anaesthesiol · Feb 2025
ReviewThe autonomous nervous system and the cholinergic anti-inflammatory reflex in postoperative neurocognitive disorders.
Postoperative delirium (POD) is a common and serious complication after surgery. It is associated with postoperative neurocognitive disorder (PNCD). The vagal cholinergic anti-inflammatory pathway (CAP) has been hypothesized to play a role in POD/PNCD and may be a target for interventions such as transcutaneous auricular stimulation (taVNS). We aim to review associations of heart rate variability (HRV) as an indicator of vagal function with POD and postoperative immune reaction as well as taVNS as a potential preventive intervention for POD. ⋯ Our review provides no evidence that CAP suppression is associated with POD/PNCD. Future studies should consider that high vagal tone may also mediate immunosuppression in surgical patients, yielding an increased risk for postoperative infections. Although taVNS is a promising approach to prevent POD/POCD, future studies should take these concerns into account.
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Current adult cardiac surgery guidelines recommend against the routine use of prophylactic intravenous corticosteroids during cardiopulmonary bypass (CPB) due to concerns about myocardial injury, despite their potential to reduce postoperative atrial fibrillation. Traditionally, a high dose of 1,000 mg of methylprednisolone was used to attenuate the inflammatory response associated with CPB. Our institution aligned with guideline recommendations and gradually reduced methylprednisolone dosages; thus, we reevaluated the impact on postoperative clinical outcomes. ⋯ The data indicates that a reduction or discontinuation of steroids during CPB can be performed without compromising patient outcomes. This could support a transition towards a more conservative use of steroids in adult cardiac surgery, aligning with current guidelines, and potentially reducing certain postoperative complications.
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Curr Opin Anaesthesiol · Feb 2025
ReviewPreventing, identifying and managing myocardial injury after non cardiac surgery - a narrative review.
There is mounting and convincing evidence that patients with postoperative troponin elevation, with or without any clinical symptoms, are at higher risk for both, short- and long-term morbidity and mortality. Myocardial injury after noncardiac surgery (MINS) is a relatively newly described syndrome, and the pathogenesis is not fully understood yet. MINS is now an established syndrome and multiple guidelines address potential etiologies, triggers, as well as preventive and management strategies. ⋯ MINS affects up to 20% of surgical patients, remains clinically mostly silent, but is associated with elevated morbidity and mortality. A multidisciplinary approach, that includes involvement of anesthesiologists, for the prevention, diagnosis, and treatment of MINS is recommended.
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Journal of critical care · Feb 2025
Postoperative oliguria after intermediate and high-risk surgeries in critical care, A cohort analysis.
Oliguria is commonly used as a cutoff for acute kidney injury (AKI), however, a decrease in urine output is common during surgery and may represent an adaptative response in the perioperative setting rather than a reduction in glomerular filtration rate, leading to a possible overestimation of postoperative AKI incidence. Although this dilemma has been addressed in the intraoperative scenario, the incidence and impact of oliguria in the first postoperative day represents a gap in the current literature. Our main goal is to describe the incidence, risk factors and clinical outcomes related to postoperative oliguria. ⋯ Postoperative oliguria is common after intermediate and high-risk surgical procedures and increases the risk of AKI. However, oliguria was largely unrelated with kidney disfunction measured by serum creatinine (87,6 %), raising doubts on whether diuresis overestimates AKI incidence in the postoperative setting.
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J. Cardiothorac. Vasc. Anesth. · Feb 2025
Randomized Controlled TrialThe Potential Role of Albumin in Reducing Cardiac Surgery-Associated Acute Kidney Injury: A Randomized Controlled Trial.
Cardiac surgery-associated acute kidney injury (CSA-AKI) is a common complication with high morbidity and mortality. This study was designed to determine whether adding human albumin to the cardiopulmonary bypass (CPB) priming solution reduces the incidence of CSA-AKI. ⋯ Adding albumin to the CPB priming solution did not decrease the incidence of CSA-AKI in patients with normal preoperative renal function. These findings suggest that albumin might benefit patients with impaired renal function, warranting further investigation.