Resumo

BOLIO-CERDAN, Alejandro et al. Cor triatriatum a rare congenital cardiac malformation of diagnostic difficulty. Bol. Med. Hosp. Infant. Mex. [online]. 2007, vol.64, n.1, pp.29-34. ISSN 1665-1146.

Introduction. We define cor triatriatum sinistrum as an anomalous fibromuscular membrane in the left atrium which divides it into 2 cavities with variable degrees of obstruction. Material and methods. In this retrospective, longitudinal and descriptive study we show a series of ten patients treated at the Hospital Infantil de Mexico in a 26 year-experience diagnosed by echocardiography. Results. No additional studies were necessary. Median age was 16.9 months; sex distribution was 1:1, registering mortality in 2 patients (20%). Long-term follow-up in 8 remaining patients had a mean of 46.8 months. Echocardiography is diagnostic and identifies associated congenital cardiac anomalies; right atriotomy approach provides excellent exposure and allows resection of the obstructive membrane. It also allows resolution of associated defects and is the preferential approach. Conclusion. This is the largest pediatric series reported to date in our country.

Palavras-chave : Cor triatriatum; left auricular membrane; congenital cardiac disease.

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