Pacemaker implantation in a premature low weight newborn with critical congenital atrioventricular block.

We describe a case of a preterm newborn with congenital complete atrioventricular block (CAVB), delivered for distress by cesarean section, and undergone, at 1295 grams of weight, to permanent pacemaker implantation. The pacemaker has been inserted between the upper left rectus abdominal muscle and the posterior rectus sheath and connected by two epicardial leads on the left ventricle wall. The procedure has been successfull.

[Immature intrapericardial teratoma: a case report in a newborn].

We report the case of an intrapericardial teratoma, diagnosed at 38 weeks of gestation. Echocardiography revealed a 38 x 39 mm multicystic pedunculated mass compressing the right atrium and the right ventricle, but without symptoms, associated with severe anterior pericardial effusion. Surgical resection of the mass was performed after birth successfully.

Regression of pulmonary fistulas in congenital heart disease after redirection of hepatic venous flow to the lungs.

Although the etiology of pulmonary fistulas in congenital heart disease remains unknown, several hemodynamic factors are thought to play a role. Recently it was postulated that hepatic venous effluent might protect the pulmonary bed from development of pulmonary fistulas. However, there are no experimental data supporting this hypothesis.

A rare form of interrupted aortic arch.

We report the case of a newborn with DiGeorge syndrome and aortic atresia associated with a complex anomaly of the aortic arch, interpreted as interrupted aortic arch type C, a persistent right ventral aorta and an aberrant right innominate artery. At 8 months the child underwent Norwood palliation with interposition of an 8 mm PTFE tube between the pulmonary trunk and the descending aorta and of a 3.5 mm shunt between the junction of the right ventral aorta to the left carotid artery and the right pulmonary artery.