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[Serum digitoxin levels in pacemaker patients].

H Nobis, H Pollak, G Kalinowski

    Wiener Klinische Wochenschrift
    |December 7, 1984
    PubMed
    Summary
    This summary is machine-generated.

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    Diagnosing digitalis toxicity in pacemaker patients is challenging. Measuring serum digitoxin concentration, alongside compliance, weight, and dose, aids in predicting therapeutic or toxic ranges.

    Area of Science:

    • Cardiology
    • Clinical Pharmacology

    Context:

    • Pacemaker patients, often elderly, present challenges in diagnosing digitalis toxicity using traditional ECG and clinical signs.
    • Digitalis therapy is common in this demographic, necessitating reliable methods for monitoring drug levels.

    Purpose:

    • To determine serum digitoxin concentrations in pacemaker patients.
    • To correlate these concentrations with clinical, ECG, and chemical findings.
    • To assess the predictability of subtherapeutic, therapeutic, and toxic serum digitoxin ranges using multivariate analyses.

    Summary:

    • Serum digitoxin concentrations were measured in 200 pacemaker patients.
    • Correlations with compliance, potassium, weight, and digitoxin dose were poor, and no correlation was found with ECG or clinical findings.

    Related Experiment Videos

  • Multivariate analysis predicted serum digitoxin ranges with up to 79% probability using compliance, body weight, and digitoxin dose.

    • Impact:

    • Findings suggest that traditional diagnostic methods for digitalis toxicity are unreliable in pacemaker patients.
    • Regular monitoring of serum digitoxin concentrations is recommended.
    • Indications for digitalis therapy in this population require careful review.