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Case of a Middle-Aged Woman with Sick Sinus Syndrome and Cor Triatriatum Dexter

Jun Wang1, Yongqin Wang1, Changqing Zhong1

  • 1Department of Cardiovascular Medicine, Hunan Provincial People's Hospital (Hunan Normal University First Affiliated Hospital), Changsha, Hunan, People's Republic of China.

Brazilian Journal of Cardiovascular Surgery
|August 7, 2025
PubMed

Insights

This case study highlights a rare cardiac anomaly, cor triatriatum dexter, in a 51-year-old woman presenting with bradycardia and neurological symptoms. The condition required a double-chamber pacemaker implantation.

Area of Science:

  • Cardiology
  • Congenital Heart Disease
  • Cardiac Electrophysiology

Background:

  • Cor triatriatum dexter is a rare congenital heart anomaly characterized by an intra-atrial septum dividing the left atrium.
  • Sick sinus syndrome is a dysfunction of the heart's natural pacemaker, leading to abnormal heart rhythms.

Observation:

  • A 51-year-old woman presented with bradycardia, dizziness, amaurosis, and right limb numbness.
  • Diagnostic imaging revealed cor triatriatum dexter, enlarged left atrium and ventricle, absent inferior vena cava, and polysplenia syndrome.

Findings:

  • The patient exhibited a complex cardiovascular presentation with multiple congenital abnormalities.
  • Cor triatriatum dexter was confirmed as the primary cardiac anomaly, coexisting with sick sinus syndrome.

Implications:

  • Surgical intervention, including double-chamber pacemaker implantation, was recommended for symptom management.
  • This case underscores the importance of comprehensive diagnostic evaluation for complex congenital heart disease and associated syndromes.

Keywords:
BradycardiaCor TriatriatumHeart Atria.Heterotaxy SyndromeInferior Vena CavaSick Sinus Syndrome

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