Abstract
The aim of this study was to determine the optimal timing of pulmonary artery band (PAB) placement in neonates with single ventricle physiology, unrestricted pulmonary blood flow, and no systemic outflow tract obstruction. Retrospective chart review of all patients who underwent isolated PAB for single ventricle physiology between January 2005 and December 2014 was carried out. The influence of age at the time of PAB on operative mortality, the need for reoperation to adjust the PAB, the preparedness of the pulmonary vascular bed prior to the second-stage bidirectional cavopulmonary shunt (BCPS), and the outcomes following BCPS were studied. The study cohort included 54 subjects (34 males). The median age at the time of PAB was 18 days. The overall mortality following PAB was 4 % (2/54). Reoperation for PAB adjustment was 7 % (4/54). Younger age at the time of PAB was not associated with mortality or increased risk of reoperation. There was a mild positive correlation between the age at PAB and the mean pulmonary artery pressure prior to BCPS. There was also a weak positive correlation between the age at PAB and the duration of ventilation following BCPS. Age at the time of PAB did not influence pulmonary vascular resistance (PVR) prior to BCPS or the mortality and hospital stay following BCPS. PAB can be done safely and effectively soon after birth in neonates with single ventricle physiology, increased pulmonary blood flow, and no potential or actual systemic outflow tract obstruction. It may not be necessary to wait for a few weeks after birth for the neonatal PVR to fall before placing a PAB.
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Ramakrishnan, K., Alfares, F.A., Hammond-Jack, K. et al. Optimal Timing of Pulmonary Banding for Newborns with Single Ventricle Physiology and Unrestricted Pulmonary Blood Flow. Pediatr Cardiol 37, 606–609 (2016). https://doi.org/10.1007/s00246-015-1321-3
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DOI: https://doi.org/10.1007/s00246-015-1321-3