id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-301424-nt35k3eg	Ad, Niv	Cardiac Surgery in North America and COVID-19: Regional Variability in Burden and Impact	2020-07-02		.txt	text/plain	2106	108	48	The present study aims to report the regional variations of North American adult cardiac surgical case volume and case mix through the first wave of the COVID-19 pandemic. Understanding the impact of COVID-19 on 183 cardiac surgical volumes and the potential regional and institutional differences in crisis 184 management may provide guidance on post-pandemic hospital operating capacity required to 185 treat deferred cases. The present study aims to report the collective North American adult cardiac surgical 189 experience with COVID-19 through the evaluation of changes in cardiac surgical case volume, 190 case mix and outcomes, as stratified by hospitals with high and low burden of hospitalized 191 patients with COVID-19. Institutions with high COVID-19 burden had significant decline in total case volume, 338 with change in case mix, that did not meet statistical significance, largely providing urgent or 339 emergent care for procedures, such as CABG, ECMO and heart transplantations, rather than 340 valvular and aortic surgical cases.	./cache/cord-301424-nt35k3eg.txt	./txt/cord-301424-nt35k3eg.txt