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A Case Report of Genetic Cascade Screening in Dilated Cardiomyopathy: A Perspective for Preventive Cardiology

Zeinab Barati1,2,3, Dariush Farhoud4,5, Uwe Nixdorff6

  • 1Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.

Iranian Journal of Public Health
|November 1, 2022
PubMed

Insights

Next-generation sequencing (NGS) confirmed dilated cardiomyopathy (DCM) in a patient with borderline clinical findings. This genetic analysis aids in diagnosing and preventing inherited heart muscle disorders.

Area of Science:

  • Cardiology
  • Genetics
  • Molecular Biology

Background:

  • Dilated cardiomyopathy (DCM) is a common inherited heart muscle disorder, with genetic factors implicated in approximately 50% of cases.
  • Accurate diagnosis of DCM can be challenging, particularly in borderline clinical presentations.

Observation:

  • A case study of a 42-year-old woman with suspected DCM at Farhud Genetic Clinic, Tehran, Iran.
  • Whole-exome sequencing (WES) was employed to identify genetic variations.
  • Detected genetic variations in genes crucial for cardiac muscle structure (e.g., Titin, Obscurin, MYH6, LAMA4) and ion channels (e.g., CAVNA1C, SCN1B, SCN5A).

Findings:

  • Molecular analysis, including WES, confirmed the diagnosis of DCM.
  • NGS proved effective in the genetic diagnosis of a borderline DCM case.
  • Identified specific gene variations associated with DCM in the patient.

Implications:

  • Highlights the diagnostic utility of NGS and high-throughput sequencing in challenging DCM cases.
  • Supports the role of genetic testing in personalized medicine for DCM, enabling risk stratification and preventative strategies.
  • Demonstrates how genetic insights can guide diagnosis, treatment, and prevention of inherited cardiomyopathies.

Keywords:
CardiomyopathiesMolecular targeted therapyNext-generation sequencingPersonalized medicine

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