Related Experiment Video

Updated: Nov 11, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

10.7K

A woman in her fifties with left bundle branch block and recurrent arrhythmias

Fredrik Eika, Johnny Vegsundvåg, Hilde Hellebust Haaland

    Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
    |March 23, 2021
    PubMed

    Insights

    Cardiac sarcoidosis, an inflammatory condition affecting the heart, can be difficult to diagnose. Early recognition of arrhythmias and cardiac dysfunction is crucial for timely intervention and improved patient outcomes.

    Area of Science:

    • Cardiology
    • Immunology
    • Pulmonology

    Background:

    • Sarcoidosis is a systemic inflammatory disease characterized by non-caseating granulomas.
    • Cardiac involvement in sarcoidosis significantly worsens prognosis due to potential damage to the heart's electrical system.
    • Diagnosing cardiac sarcoidosis presents challenges due to the limitations of current clinical criteria.

    Observation:

    • A middle-aged woman presented with chronic dry cough and atypical chest pain, initially undiagnosed for years.
    • The patient experienced recurrent arrhythmias, progressive ventricular dysfunction, and eventual heart failure.
    • A comprehensive, multidisciplinary evaluation ultimately identified cardiac sarcoidosis as the underlying cause.

    Findings:

    • Cardiac sarcoidosis can manifest subtly but should be suspected with left bundle branch block, AV-block, or supraventricular tachycardias.
    • Weakened ventricular function is a critical sign warranting further investigation for cardiac sarcoidosis.
    • Diagnostic tools include MRI, echocardiography, PET/CT scans, and endomyocardial biopsy for definitive confirmation.

    Implications:

    • Timely diagnosis and management of cardiac sarcoidosis are crucial for preventing severe cardiac complications.
    • Multidisciplinary collaboration and advanced imaging techniques improve diagnostic accuracy.
    • Understanding sarcoidosis's cardiac manifestations is vital for patient prognosis and treatment strategies.
    Abstract

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