Screening for, and management of, possible arrhythmogenic syndromes (channelopathies/ion channel diseases)

Jesper Hastrup Svendsen1, Peter Geelen,

  • 1Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen and The Danish National Research Foundation Centre for Cardiac Arrhythmia, Denmark. hastrup@rh.dk

Insights

European centers manage arrhythmogenic syndromes like long QT syndrome (LQTS) and Brugada syndrome (BS) using primarily non-invasive tests and genetic testing. Management focuses on first-degree relatives of affected individuals.

Area of Science:

  • Cardiology
  • Genetics
  • Electrophysiology

Background:

  • Arrhythmogenic syndromes, including LQTS, BS, CPVT, and SQTS, pose significant risks.
  • Effective management strategies are crucial for patients and their families.

Purpose of the Study:

  • To survey current management strategies for arrhythmogenic syndromes in European centers.
  • To identify trends in diagnostic and genetic testing approaches.

Main Methods:

  • Survey distributed to 44 large European centers.
  • Data collected on patient demographics, diagnostic work-up, and genetic testing.
  • Focus on management of index patients and family members.

Main Results:

  • Low incidence of new arrhythmogenic syndrome cases.
  • Predominance of non-invasive diagnostic tests.
  • High utilization of genetic testing, particularly for LQTS and CPVT.
  • Common use of EP testing in asymptomatic BS patients and relatives.
  • Focus on first-degree relatives for family screening.

Conclusions:

  • Current management of arrhythmogenic syndromes in Europe is characterized by non-invasive diagnostics and significant genetic testing.
  • Electrophysiology testing plays a role in specific Brugada syndrome scenarios.
  • Family screening primarily targets first-degree relatives.

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