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Changing axis deviation during acute myocardial infarction

Salvatore Patanè, Filippo Marte

    International Journal of Cardiology
    |January 16, 2009
    PubMed

    Insights

    This study reports a rare case of changing axis deviation during acute myocardial infarction in an elderly man. The findings highlight a transient left posterior hemiblock pattern associated with significant coronary artery obstruction.

    Area of Science:

    • Cardiology
    • Electrocardiography
    • Myocardial Infarction

    Background:

    • Changing axis deviation is an uncommon finding during acute myocardial infarction.
    • Atrial fibrillation is frequently associated with axis deviation during myocardial infarction.
    • Left posterior hemiblock is a rare electrocardiographic finding.

    Observation:

    • A 70-year-old Italian man presented with acute myocardial infarction.
    • The patient exhibited transient right axis deviation with a left posterior hemiblock pattern.

    Findings:

    • The observed axis deviation was linked to significant right coronary artery obstruction.
    • Collateral circulation between the left coronary system and the posterior descending artery was implicated.

    Implications:

    • This case underscores the importance of recognizing rare electrocardiographic patterns in acute myocardial infarction.
    • Understanding axis deviation changes can aid in diagnosing coronary artery obstruction and assessing collateral flow.
    • Further research into the mechanisms of transient hemiblocks during myocardial infarction is warranted.

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