Rare venous connection causing severe hypoxia after Fontan operation

¹ University of Tokushima, Japan

^* To whom correspondence should be addressed. E-mail: hayabuchi{at}clin.med.tokushima-u.ac.jp.

	Abstract

We described a rare case of cyanosis following the Fontan operation with right-to-left shunting at the venous level, that is, an azygos venous to pulmonary venous connection. Few cases with partial anomalous pulmonary venous connection to azygos vein have been reported; however, there have been no report describing the connection from azygos vein to pulmonary vein, which results in desaturation after Fontan operation. Multidetector-row computed tomography (MDCT) was a useful tool to depict this vascular malformation. Keywords: Fontan operation; Cyanosis; Collateral vessel