Letter by Phillips Regarding Article, “Comparison of the Profiles of Postoperative Systemic Hemodynamics and Oxygen Transport in Neonates After the Hybrid or the Norwood Procedure: A Pilot Study”
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To the Editor:
I want to compliment Li et al on a very unique study1 evaluating oxygen consumption and delivery during the first 72 hours postoperatively in patients with hypoplastic left heart syndrome treated by either the Norwood procedure (n=13) or the hybrid procedure (n=6). The study design was excellent; however, it is my opinion that there are several problems with the study and the conclusions drawn by the authors.
The hybrid procedure, which is generally used by most centers, involves placement of bilateral branch pulmonary artery bands and a stent in the patent ductus arteriosus either by a transpulmonary approach2 (Columbus) or percutaneous approach3 (Giessen). The need …