A 26-year-old man was evaluated for progressive shortness of breath on mild exertion. Physical examination was unremarkable. The electrocardiogram revealed left atrial (LA) enlargement. Transthoracic echocardiography (TTE) and cardiovascular magnetic resonance (CMR) demonstrated normal biventricular size and systolic function with severely dilated LA and no significant valvulopathy. A thin mobi...

Cor triatriatum dexter is a malformation resulting from lack of normal regression of the embryonic right valve of the sinus venosus. In this situation, the right atrium is divided by a membrane into two chambers. Two-dimensional echocardiography was used in the antemortem diagnosis of this rare cardiac anomaly in a neonate. Associated cardiac lesions were also documented. The patient died, and ...

The corundum-type In(2-2x)Zn(x)Sn(x)O(3) solid solution (cor-ZITO, x ≤ 0.7) was synthesized at 1000 °C under a high pressure of 70 kbar. cor-ZITO is a high-pressure polymorph of the transparent conducting oxide bixbyite-In(2-2x)Zn(x)Sn(x)O(3) (x ≤ 0.4). Analysis of the extended X-ray absorption fine structure suggests that significant face-sharing of Zn and Sn octahedra occurs, as expected for ...

A HEART comprised of atria and a single ventricle, cor triloculare biatriatum, represents an unusual congenital defect. In her atlas Abbott1 described this as the unique defect in only 13 of 1,000 malformed hearts. Fourteen other hearts in her series had some anomaly in addition to a single ventricle. To date almost 100 patients with this defect have been reported in the medical literature but ...