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Q After a first hospital admission for heart failure (HF), how do the 1 year outcomes of patients with preserved ejection fraction (EF) compare with those of patients with reduced EF?
Clinical impact ratings IM/Ambulatory care ★★★★★★★ Internal medicine ★★★★★★★ Cardiology ★★★★★☆☆
METHODS
Design:
inception cohort followed for 1 year.
Setting:
103 teaching and community hospitals in Ontario, Canada.
Patients:
880 patients (mean age 75 y, 66% women) with preserved EF (>50%) and 1570 patients (mean age 72 y, 63% men) with reduced EF (<40%). Patients were included if they had a first time hospital admission for HF (defined by Framingham study criteria) between 1 April 1999 and 31 March 2001 and documented evaluation of left ventricular EF at admission. Exclusion criteria were age ⩾105 years, transfer from another hospital, HF that developed after admission, or severe primary left sided …
Footnotes
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For correspondence: Dr P P Liu, Toronto General Hospital, Toronto, Ontario, Canada. peter.liu{at}utoronto.ca
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Sources of funding: Heart and Stroke Foundation of Ontario; Canadian Institutes of Health Research; Canadian Heart Failure Network of Exploratory Teams; Canadian Cardiovascular Outcomes Research Team.