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Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
Published on: June 12, 2021
Update in the Management of Acute Coronary Syndrome Patients with Cardiogenic Shock
Jayant Bagai1, Emmanouil S Brilakis2
1Vanderbilt University Medical Center, Nashville, TN, USA.
Insights
Prompt management of cardiogenic shock in acute coronary syndrome (ACS) involves early recognition and mechanical circulatory support (MCS). Culprit-only revascularization is recommended, avoiding routine multivessel intervention.
Area of Science:
- Cardiology
- Critical Care Medicine
Background:
- Cardiogenic shock complicates 5-10% of acute coronary syndrome (ACS) cases, associated with high mortality.
- Early recognition and intervention are crucial for managing cardiogenic shock.
Purpose of the Study:
- To provide an update on the contemporary management of cardiogenic shock in ACS.
- To highlight key strategies including early recognition, mechanical circulatory support (MCS), and revascularization.
Main Methods:
- Review of current guidelines and clinical trial data.
- Emphasis on a team-based, protocol-driven approach.
Main Results:
- Culprit-only revascularization in ACS with cardiogenic shock reduces mortality and renal failure compared to multivessel PCI.
- Routine use of intra-aortic balloon pump (IABP) did not improve outcomes in the IABP-SHOCK II trial.
Conclusions:
- Optimal management includes early shock recognition, judicious use of MCS, and culprit-only revascularization.
- Team-based strategies and standardized protocols are essential for improving outcomes in cardiogenic shock patients.
Purpose Of Review:
We provide a concise update on the contemporary management of cardiogenic shock in the setting of acute coronary syndrome (ACS). Early shock recognition, optimal selection and initiation of mechanical circulatory support (MCS), early coronary revascularization, and a team-based, protocol-driven approach are the current pillars of management.
Recent Findings:
Cardiogenic shock complicates approximately 5-10% of ACS cases and continues to have high mortality. Early use of mechanical circulatory may prevent the downward spiral of shock and has significantly increased over time, supported mainly by registry data. In the CULPRIT-SHOCK trial, culprit-only revascularization was associated with a lower 30-day incidence of all-cause death or severe renal failure, compared with immediate multivessel PCI. Routine revascularization of non-infarct related artery lesion(s) during primary PCI for cardiogenic shock is, therefore, not recommended. The routine use of an intra-aortic balloon pump (IABP) was not associated with improved outcomes in the IABP-SHOCK II trial. A team-based and protocol-driven approach may further improve outcomes. Recent advances in coronary revascularization and use of MCS, implementation of shock teams and standardized protocols may improve outcomes of cardiogenic shock in ACS patients.
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