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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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Published on: June 21, 2018

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The Cardiac Genetics Clinic: a model for multidisciplinary genomic medicine

Dominica Zentner1, Tina N Thompson2, Paul A James2

  • 1Royal Melbourne Hospital, Melbourne, VIC dominica.zentner@mh.org.au.

The Medical Journal of Australia
|September 18, 2015
PubMed

Insights

Genetic testing for cardiac conditions identified pathogenic mutations in 15.3% of patients at a specialized clinic. The Cardiac Genetics Clinic (CGC) provides crucial diagnostic and risk management services for inherited cardiac diseases.

Area of Science:

  • Cardiovascular Medicine
  • Medical Genetics
  • Clinical Diagnostics

Background:

  • Multidisciplinary Cardiac Genetics Clinics (CGC) are essential for diagnosing and managing inherited cardiac conditions.
  • Understanding patient demographics and the utility of genetic testing is crucial for service optimization.

Purpose of the Study:

  • To characterize patient profiles, clinical procedures, and genetic testing uptake at the Royal Melbourne Hospital's CGC over its initial six years.
  • To evaluate the diagnostic yield of genetic testing in a diverse cohort with inherited cardiac diseases.

Main Methods:

  • A retrospective database review of 1170 individuals attending the CGC between July 2007 and July 2013.
  • Patients were categorized by cardiac diagnosis, and data on clinic visits and genetic testing incidence were analyzed.

Main Results:

  • 32.6% of individuals (381/1170) underwent genetic testing, with pathogenic mutations identified in 47.6% of these tests.
  • The most common diagnostic categories were cardiomyopathy, aortopathy, arrhythmia disorders, and sudden cardiac death/family history.
  • A pathogenic mutation was identified in 15.3% of the total patient population.

Conclusions:

  • The CGC plays a vital role in diagnosing and managing patients with genetic cardiac conditions.
  • Clinical practice evolved from candidate gene testing to broader next-generation sequencing panels, potentially increasing mutation detection.
  • The clinic provides essential diagnostic clarity and risk management plans for individuals and families affected by inherited cardiac diseases.
Abstract

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