Surgical treatment of cor triatriatum: report of four cases
Nagata, M.; Ishii, K.; Onitsuka, T.; Yonezawa, T.; Kuwahara, M.; Nakamura, H.; Shibata, K.; Koga, Y.; Nakachi, T.; Hayakawa, K.
Kyobu Geka. Japanese Journal of Thoracic Surgery 43(10): 793-798
1990
ISSN/ISBN: 0021-5252 PMID: 2214436 Document Number: 350099
Four cases of cor triatriatum are reported. Cases 1 and 2 had IIA, case 3 had IA, and case 4 had IIIB 1 type of cor triatriatum according to Lucas-Schmidt classification. Cases 1 and 2 were diagnosed by echocardiography preoperatively. They were not performed cineangiocardiography because of pulmonary congestion. Case 3 had type IA so called classical type, which is hemodynamically identical to mitral stenosis and supravalvular stenosing ring. The clinical features are depend on the size of the communication between accessory chamber and true left atrium. As case 4, he had been diagnosed of simple atrial septal defect preoperatively, careful echocardiographic examination was essential for accurate diagnosis. In case 2 with hypoplastic left heart, secondary surgical repair is considered to be desirable followed by balloon dilatation of two atrial septal defects communicated to accessory chamber and to true left atrium. Thus, we expect development of hypoplastic left ventricle.