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Surgical treatment of cor triatriatum
Insights
Surgical correction of cor triatriatum in pediatric patients effectively resolves obstructive left atrial membranes. This intervention leads to positive long-term outcomes, with most patients experiencing significant recovery and improved heart function.
Area of Science:
- Cardiology
- Pediatric Cardiac Surgery
- Congenital Heart Disease
Background:
- Cor triatriatum is a rare congenital heart defect characterized by a membrane dividing the left atrium.
- This anomaly can lead to symptoms of congestive heart failure and pulmonary hypertension in affected individuals.
- Accurate diagnosis and timely surgical intervention are crucial for improving patient outcomes.
Purpose of the Study:
- To evaluate the efficacy and outcomes of surgical correction for cor triatriatum in pediatric patients.
- To assess the diagnostic utility of cardiac cineangiography in identifying the left atrial membrane.
- To analyze the surgical approach and long-term results following membrane excision.
Main Methods:
- Retrospective analysis of six pediatric patients diagnosed with cor triatriatum.
- Surgical correction performed using a right atrial-transseptal approach for membrane excision and atrial septal repair.
- Preoperative assessment included roentgenography and cardiac cineangiography; postoperative follow-up assessed patient status.
Main Results:
- Cardiac cineangiography accurately diagnosed cor triatriatum in all patients, revealing a stenotic opening in the left atrial membrane.
- Surgical correction via the right atrial-transseptal approach allowed for complete membrane excision and successful repair.
- Five out of six patients survived and remained well at an average follow-up of 48 months; one patient experienced early postoperative mortality.
Conclusions:
- Surgical correction of cor triatriatum using a right atrial-transseptal approach is an effective treatment for pediatric patients.
- The procedure provides adequate exposure for complete resection of the obstructing membrane and repair of associated defects.
- This surgical strategy offers favorable long-term outcomes for the majority of patients with cor triatriatum.
Abstract:
Six patients with cor triatriatum underwent surgical correction. They ranged for 1.5 to 93 months old (mean, 22 months). Congestive heart failure was present in 3 patients. Cardiomegaly and increased pulmonary vascularity were evident roentgenographically in all patients. Cardiac cineangiography demonstrated the subdividing left atrial membrane in 5 patients and suggested the correct diagnosis by revealing an abnormal configuration of the left atrium in the other patient. The opening in the anomalous left atrial membrane was stenotic in every instance. The proximal left atrial chamber communicated with the right atrium through an atrial septal defect in 5 patients and with the systemic venous circuit through a persistent left superior vena cava in the other patient, in whom the atrial septum was intact. A right atrial-transseptal approach provided ample exposure for complete excision of the obstructing membrane and repair of the atrial septum in all patients. One patient died of low cardiac output during the early postoperative period. The other 5 are alive and well at an average of 48 months after operation.