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Related Experiment Videos

ST-T segment changes in patients with essential hypertension.

J Turk

    Cor Et Vasa
    |January 1, 1982
    PubMed
    Summary

    In essential hypertension (EH), ischaemic ST-T segment changes are primarily caused by coronary artery disease (CAD), not left ventricular hypertrophy (LVH). This finding holds true whether or not LVH is present.

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    Area of Science:

    • Cardiology
    • Internal Medicine
    • Hypertension Research

    Background:

    • Essential hypertension (EH) can manifest electrocardiogram (ECG) changes.
    • Ischaemic ST-T segment alterations are a concern in patients with EH.
    • The role of left ventricular hypertrophy (LVH) in these ECG changes is unclear.

    Purpose of the Study:

    • To investigate the underlying cause of ischaemic ST-T segment changes in patients with essential hypertension.
    • To determine the association between ST-T segment changes, coronary artery disease (CAD), and left ventricular hypertrophy (LVH) in EH.

    Main Methods:

    • Comparison of ECG findings with coronary arteriograms and autopsy results.
    • Stratification of patients into two groups: those without LVH (Group A, n=75) and those with LVH (Group B, n=50).
    • Statistical analysis to assess the significance of the association between ST-T changes and CAD.

    Main Results:

    • In Group A (no LVH), 39 of 75 patients had pathologic ST-T changes, all associated with CAD.
    • In Group B (with LVH), 20 of 50 patients had pathologic ST-T changes, with 16 linked to CAD.
    • A significant association between pathologic ST-T segments and CAD was observed in both groups.

    Conclusions:

    • Ischaemic ST-T segment changes in essential hypertension are predominantly attributable to underlying coronary artery disease (CAD).
    • The presence or absence of left ventricular hypertrophy (LVH) does not alter the primary role of CAD in causing these ECG abnormalities.
    • Clinical evaluation of EH patients with ST-T changes should prioritize the assessment for coronary artery disease.

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