title: The authors reply.
authors.affiliation: Surgical Critical Care Services, MedStar Washington Hospital Center, Washington, DC; MedStar Heart Institute and Advanced Heart Failure Service, MedStar Washington Hospital Center, Washington, DC, and Cardiac Transplantation, Children's National Medical Center, Washington, DC.
authors.forename: Alexandra K
authors.initials: AK
authors.lastname: Pratt
authors.forename: Nimesh S
authors.initials: NS
authors.lastname: Shah
authors.forename: Steven W
authors.initials: SW
authors.lastname: Boyce
mesh_terms: D006353:Heart-Assist Devices; D006801:Humans; D007362:Intensive Care Units