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Concealed ventricular premature complexes in a population sample.

N Z Kerin, M Rubenfire, R Stoler

    The American Journal of Cardiology
    |February 15, 1986
    PubMed
    Summary
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    A study found that 23% of patients with ventricular premature complexes (VPCs) had over 30 VPCs/hour. Among these, 54% exhibited concealed VPCs, most commonly classic concealed bigeminy.

    Area of Science:

    • Cardiology
    • Electrophysiology

    Background:

    • Ventricular premature complexes (VPCs) are common arrhythmias.
    • Assessing the frequency and types of VPCs is crucial for patient management.

    Purpose of the Study:

    • To analyze the prevalence of high-frequency VPCs and concealed VPCs in a patient cohort.
    • To identify the specific patterns of concealed VPCs.

    Main Methods:

    • Analysis of Holter recordings from 150 patients with diagnosed VPCs.
    • Random sampling and detailed ECG pattern analysis for concealed VPCs.

    Main Results:

    • 35 patients (23%) exceeded 30 VPCs/hour.
    • 19 of these patients (54%) had concealed VPCs.
    • Classic concealed bigeminy (S = 2n - 1) was the most frequent type (52% of concealed VPCs).

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    Conclusions:

    • A significant subset of patients with VPCs exhibit high-frequency and concealed forms.
    • Classic concealed bigeminy is the predominant pattern observed.