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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
05:26

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction

Published on: May 28, 2019

Acute Myocardial Infarction with Severe ST Segment Elevation Treated with Percutaneous Coronary Intervention More

Michiyoshi Sone, Eiji Tamiya, Masahiro Sesoko

    The International Journal of Angiology : Official Publication of the International College of Angiology, Inc
    |June 2, 2012
    PubMed

    Insights

    Successful percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) in a patient without collateral circulation led to near-normal cardiac function and ECG findings six months post-procedure.

    Area of Science:

    • Cardiology
    • Interventional Cardiology
    • Cardiac Imaging

    Background:

    • ST-elevation myocardial infarction (STEMI) typically involves significant coronary artery occlusion.
    • Left anterior descending artery occlusions often lead to extensive myocardial damage.
    • Collateral circulation plays a crucial role in myocardial salvage during acute coronary syndromes.

    Observation:

    • A 65-year-old man presented with acute ST-elevation myocardial infarction (STEMI).
    • Cardiac catheterization revealed a completely occluded left anterior descending artery without any collateral blood supply.
    • Percutaneous coronary intervention (PCI) was successfully performed days after symptom onset.

    Findings:

    • ST elevation on electrocardiogram (ECG) resolved within 5 days following PCI.
    • No ventricular aneurysm formation was observed, which is unusual given the prolonged ST elevation.
    • Six months post-PCI, both ECG and echocardiographic assessments showed nearly normal findings, indicating preserved left ventricular function.

    Implications:

    • This case highlights the potential for excellent long-term outcomes even in severe STEMI cases with no collateral circulation.
    • Timely PCI can lead to significant recovery of myocardial function and resolution of ECG abnormalities.
    • The absence of ventricular aneurysm formation suggests robust myocardial repair mechanisms or successful reperfusion therapy in this specific scenario.

    Keywords:
    ST segment elevation myocardial infarctioninfarct sizepercutaneous coronary intervention

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