gradient between 20 and 50 mm mercury. Four had poor results; 2 were late postoperative deaths, 3 and 6 mo postoperatively; 1 has heart block with atrioventricular bundle rhythm, and 1 patient has a residual shunt and outflow tract gradient. All
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.