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Case report of heterotaxy syndrome with sinus node dysfunction and left ventricular hypertrabeculation: clinical and
María Gabriela Matta1, Prithviraj Dhonde1, Edward Dababneh1
1Department of Cardiology, Division of Specialist Medical Services, Gold Coast Hospital and Health Services, Southport, QLD 4215, Australia Department of Cardiology Division of Specialist Medical Services Gold Coast Hospital and Health Services Southport Australia.
Insights
A woman with complex heart conditions, including left atrial isomerism and sinus node dysfunction, received a specialized pacemaker. Genetic testing revealed a novel chromosome 17 duplication, potentially linked to her cardiac abnormalities.
Area of Science:
- Cardiology
- Genetics
- Congenital Heart Disease
Background:
- Left atrial isomerism is a complex congenital heart defect.
- Sinus node dysfunction and left ventricular hypertrabeculation are significant cardiac conditions.
- Heterotaxy and conduction disorders can have familial patterns.
Abstract:
We present the case of a 41-year-old woman with left atrial isomerism, severe sinus node dysfunction, and left ventricular hypertrabeculation, who required implantation of a dual-chamber implantable cardioverter-defibrillator with left bundle branch area pacing. Her family history revealed multiple cases of heterotaxy and conduction disorders. Genetic testing identified a heterozygous interstitial duplication on chromosome 17q23.2 involving the MED13 gene, whose clinical significance has not yet been determined.
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