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Tangential triangular resection: an option to treat the giant left atrium
Pablo M A Pomerantzeff1, Carlos M A Brandão, Marco A V Guedes
1From the Department of Cardiothoracic Surgery, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Innovations (Philadelphia, Pa.)
|March 23, 2012
Summary
Congenital heart defects causing severe mitral and tricuspid insufficiency led to heart failure. Surgical reduction of the enlarged left atrium significantly improved the patient's condition and heart function.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Imaging
Background:
- Congenital heart defects can lead to severe valvular insufficiency and cardiac chamber enlargement.
- Enlargement of the left atrium (LA) is a common complication of mitral and tricuspid insufficiency, potentially causing congestive heart failure.
- Surgical intervention is often necessary to address severe valvular issues and associated cardiac remodeling.
Purpose of the Study:
- To describe a surgical technique for reducing severe left atrial enlargement in a patient with congenital mitral and tricuspid insufficiency.
- To evaluate the efficacy of left atrial reduction surgery in improving cardiac function and relieving heart failure symptoms.
- To assess the long-term outcomes and recurrence rates of arrhythmias, embolism, or heart failure after the procedure.
Main Methods:
- A 21-year-old female patient with symptomatic congestive heart failure due to congenital mitral and tricuspid insufficiency and severe left atrial enlargement underwent surgical intervention.
- Transthoracic echocardiogram and magnetic resonance imaging (MRI) were used to diagnose and assess the severity of the cardiac condition.
- The surgical procedure involved a tangential triangular resection of the posterior left atrial wall, reinforced with bovine pericardium, and simultaneous mitral and tricuspid valve repair.
Main Results:
- The surgical procedure successfully reduced the enlarged left atrium by 50% as confirmed by postoperative MRI.
- The patient experienced an uneventful postoperative recovery and was discharged on the 15th postoperative day.
- Post-surgical follow-up indicated excellent evolution of the left atrial resection with a low recurrence of arrhythmias, embolism, or heart failure.
Conclusions:
- Surgical reduction of severe left atrial enlargement is a viable and effective treatment for patients with congenital valvular insufficiency and associated heart failure.
- This technique offers significant improvement in cardiac function and relief from heart failure symptoms.
- The procedure demonstrates a favorable long-term outcome with a low risk of complications, highlighting its therapeutic potential in managing complex congenital heart disease.
