Mid-term morbidity and mortality of patients after arterial switch operation in infancy for transposition of the great arteries

Autor: Luisa Cabeza-Letrán, José Santos de Soto, Pilar Pérez, Antonio Álvarez Madrid, Antonio Pelaez Gonzalez, Pastora Gallego, Manuela Romero-Vazquiánez, Reza Hosseinpour, Mauro Gil Fournier, María José Rodríguez Puras
Rok vydání: 2013
Předmět:
Zdroj: Revista espanola de cardiologia (English ed.). 67(3)
ISSN: 1885-5857
Popis: Introduction and objectives The arterial switch operation is currently the preferred surgical approach for complete transposition of the great arteries. We sought to determine the mid-term results of this intervention. Methods A single-institution retrospective review of clinical records of all consecutive patients who underwent the arterial switch surgery between 1985 and 2010. Results Overall, the operation was performed on 155 patients (68% boys) at a median age of 13 days: 64% with an intact septum, 46% with a ventricular septal defect, and 4.5% with associated aortic arch anomaly. The usual coronary pattern was found in 63%. Palliative surgery was performed prior to arterial switch in 6.5%. In all, 137 perioperative survivors were followed for a median of 6 years. Late mortality was 2.9%, of which 50% was due to coronary complications. Eighteen percent required surgical and/or percutaneous reintervention: 95.6% for right-sided obstruction and 4.3% for aortic regurgitation. At last follow-up, 92% had functional class I symptoms and 95% were free of arrhythmias. The left ventricular ejection fraction was greater than 55% in 95%, 28% had neoaortic regurgitation (78% mild regurgitation), and 31% had right ventricular outflow tract obstruction with a mean gradient according to echocardiography greater than 25 mmHg. Conclusions Mid-term survival of patients after arterial switch operation is excellent and their functional status is good. However, a few patients have residual lesions and a need for further intervention during follow-up, mostly for right-sided obstructions. Late mortality was uncommon and was related to coronary complications. Neoaortic root dilation and regurgitation are not major issues in early adulthood, but the long-term course of these lesions is still unknown.
Databáze: OpenAIRE