Impact of preoperative risk factors on outcomes after Norwood palliation for hypoplastic left heart syndrome.

Background: Infants with hypoplastic left heart syndrome (HLHS) are susceptible to pre-Norwood comorbidities (PCs) and complications. This study aimed to describe the effect of PCs on timing and survival of Norwood palliation (NP).

Methods: A single-center, retrospective review of infants with HLHS who underwent initial NP between 2003 and 2010 was performed.

Neonatal midaortic syndrome and renal artery atresia presenting as malignant hypertension.

We report a case of congenital midaortic syndrome with bilateral renal artery atresia in a premature female neonate born by way of caesarean section secondary to acute onset of decreased fetal movement and polyhydramnios. The infant required cardiopulmonary resuscitation at birth, and initial echocardiogram exhibited normal intracardiac anatomy and mildly depressed left-ventricular systolic function. Within 24 h, the neonate developed severe systemic arterial hypertension and acute renal failure.