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Cor Triatriatum

A rare congenital anomaly in which the left atrium is divided into two chambers by a fibromuscular membrane.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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What is Cor Triatriatum?

Cor triatriatum is a rare congenital heart defect in which the left atrium (cor triatriatum sinistrum) — or less commonly the right atrium (cor triatriatum dexter) — is divided into two chambers by a fibromuscular membrane. It accounts for about 0.1–0.4% of all congenital heart disease.

In the left atrium there is a narrow opening between the proximal chamber receiving the pulmonary veins and the distal chamber connecting to the mitral valve. The size of the opening determines the severity of disease; small openings lead to pulmonary venous hypertension, right heart failure and significant symptoms.

Diagnosis is made by transthoracic echocardiography; cardiac MRI and CT provide additional information. Treatment is surgical, with excision of the membrane. The postoperative prognosis is generally excellent.

Symptoms

Dyspnea from pulmonary venous obstruction
Fatigue that worsens with exertion
Hemoptysis
Recurrent pulmonary infections
Growth failure in infants
Atrial fibrillation in adults
Signs of right heart failure

Risk Factors

Family history of congenital heart disease
Chromosomal anomalies
Associated ASD or VSD
Maternal viral infections
Teratogen exposure
Maternal diabetes
Cardiac developmental disorders

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Unexplained dyspnea and exercise intolerance
  • Recurrent pulmonary infections
  • Hemoptysis
  • Growth failure in an infant
  • Suspicious echocardiographic findings
  • Development of atrial fibrillation

Treatment Methods

01
Surgical membrane excision (definitive treatment)
02
Repair of associated ASD/VSD
03
Relief of pulmonary venous obstruction
04
Diuretic therapy for right heart failure
05
Anticoagulation for atrial fibrillation
06
Regular cardiology follow-up
07
Endocarditis prophylaxis

Which Department to Visit?

You can visit our Kardiyoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.