Key result
Microaxial flow pump used for infarct-related cardiogenic shock malfunctions unexpectedly, requiring device replacement.
Case Report (n=1)
This case highlights the dynamic nature of cardiogenic shock and the need for a problem-focused approach to manage unexpected microaxial flow pump malfunctions.
May warrant vigilance for microaxial pump malfunction in cardiogenic shock; leaves open device reliability questions for prospective study.
BACKGROUND: Infarct-related cardiogenic shock (CS) is a serious complication. The implementation of the Society for Cardiovascular Angiography and Interventions (SCAI) shock classification system facilitates the timely identification and intervention in CS. CASE SUMMARY: A patient presenting with anterior ST-segment elevation myocardial infarction arrived at the catheterization laboratory in SCAI stage B, with rapid progression to stage E. Acute bedside echocardiography revealed an ejection fraction of 10%. The patient was stabilized with norepinephrine and a microaxial flow pump. The device malfunctioned, resulting in replacement. DISCUSSION: SCAI stages need frequent reassessment to guide appropriate interventions. The microaxial flow pump was selected owing to its less invasive nature and its ability to provide left ventricular support. The decision to implant a mechanical circulatory support device is complex and must be made swiftly in response to the patient's clinical condition.
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Holle et al. (2025) conducted a case report in Infarct-related cardiogenic shock (n=1). Microaxial flow pump was evaluated. A microaxial flow pump used to stabilize a patient with infarct-related cardiogenic shock and an ejection fraction of 10% experienced an unexpected malfunction requiring device replacement.
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