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Routine use of corticosteroids to prevent inflammation response in cardiac surgery
Tim Nebelsiek1, Andres Beiras-Fernandez, Erich Kilger
1Department for Anaesthesiology, Ludwig-Maximilians-University Munich, Germany.
Insights
Corticosteroids may favorably alter the inflammatory cytokine profile after cardiac surgery. However, their clinical benefit on postoperative outcomes remains controversial, despite decades of research and use.
Area of Science:
- Cardiology
- Immunology
- Pharmacology
Background:
- Cardiac surgery, particularly with cardiopulmonary bypass, triggers a severe systemic inflammatory response.
- This response involves complement activation, coagulation, fibrinolysis, and kallikrein cascades, leading to cytokine release and potential organ dysfunction.
- Postoperative morbidity is linked to this inflammatory storm.
Purpose of the Study:
- To review the use, efficacy, and outcomes of corticosteroids in cardiac surgery.
- To discuss different types, dosage regimens, and potential side effects of perioperative corticosteroids.
- To examine the impact of corticosteroids on postoperative complications and clinical outcomes.
Main Methods:
- Review of existing literature on corticosteroid use in cardiac surgery.
- Analysis of clinical trials investigating the effects of glucocorticoids on inflammatory markers and clinical outcomes.
- Discussion of relevant patents and immunomodulatory strategies.
Main Results:
- Glucocorticoids may favorably modulate pro-inflammatory cytokine profiles.
- Evidence linking these cytokine changes to improved clinical outcomes in cardiac surgery remains inconclusive.
- Clinical trials have not consistently demonstrated a reduction in major postoperative complications like myocardial infarction or pulmonary issues.
Conclusions:
- The role of corticosteroids in attenuating the inflammatory response and improving clinical outcomes after cardiac surgery is still debated.
- Further research is needed to clarify the definitive benefits and optimal use of corticosteroids in this patient population.
- Alternative strategies and devices are being explored to manage perioperative inflammation.
Abstract:
Cardiac surgery, especially if it involves cardiopulmonary bypass, is associated with a severe systemic inflammatory response. It is characterized by complement activation and initiation of coagulation, fibrinolysis and kallikrein cascades. Consecutive activation of immunoregulatory cells results in an extensive release of pro- and anti-inflammatory cytokines. This inflammatory storm is related to organ dysfunction or failure and correlates with postoperative morbidity. In order to attenuate this deleterious inflammatory response in the perioperative period alternative surgical techniques, novel extracorporeal circulation devices and immunomodulatory pharmacological strategies are in focus of contemporary research. Since decades corticosteroids have been used and studied in patients undergoing cardiac surgery. Although it could be shown that glucocorticoids seem to change the pro-inflammatory cytokine profile in a favourable manner, it still remains controversial if this effect translates into a better clinical outcome. Several clinical trials have proclaimed an association between this inflammatory response and the incidence of major complications i.e, myocardial infarction and pulmonary complications, but until now they have failed to show conclusive results. This article describes the different types and recommended dose schemes of corticosteroids in the perioperative period of cardiac surgery along with the discussion of few patents. It will comment on potential side effects and review the effect on the postoperative outcome.
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