Letters Section Editor: Jody W. Zylke, MD, Senior Editor.
Author Affiliations: Heartlink ECMO Center, Glenfield Hospital, Leicester, England (Dr Peek) (Giles.firstname.lastname@example.org); and Intensive Care National Audit & Research Centre, London, England (Dr Rowan).
In Reply: The SwiFT (Swine Flu Triage) Study collected only a minimal set of daily critical care data for the 1756 H1N1 cases in 193 hospitals (predominantly those sufficient to calculate a Sequential Organ Failure Assessment score), given the pandemic context. More detailed additional data, however, were collected on a much smaller number of cases (n = 80) referred to 1 of the 4 ECMO centers. Therefore, as Dr Haeck and colleagues point out, information on respiratory values during treatment in non–ECMO-referred patients with H1N1 was not available.
Peek GJ, Rowan KM. ECMO Centers and Mortality From Influenza A(H1N1)—Reply. JAMA. 2012;307(5):454-455. doi:10.1001/jama.2012.58