Asymptomatic left ventricular systolic dysfunction in patients with severe aortic stenosis: Characteristics and outcomes

Danielle M. Henkel, Joseph F. Malouf, Heidi M. Connolly, Hector I. Michelena, Maurice E. Sarano, Hartzell V. Schaff, Christopher G. Scott, Patricia A. Pellikka

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22 Scopus citations

Abstract

Objectives: This study sought to determine the prevalence, characteristics, and outcomes of asymptomatic left ventricular (LV) systolic dysfunction in patients with severe aortic stenosis (AS). Background: Management of asymptomatic patients with severe AS remains controversial. In these patients, LV systolic dysfunction, defined in the guidelines as ejection fraction <50%, is a Class I(C) indication for aortic valve replacement (AVR), but its prevalence is unknown. Methods: A retrospective study of adults <40 years of age with severe valvular AS (peak velocity <4 m/s, mean gradient >40 mm Hg, aortic valve area [AVA] <1 cm2, or AVA index <0.6 cm 2/m2) from 1984 to 2010 was undertaken. Patients with prior cardiac surgery, severe coronary artery disease, or greater than moderate aortic regurgitation were excluded. Results: Of 9,940 patients with severe AS, 43 (0.4%) patients had asymptomatic LV dysfunction. Age was 73 ± 14 years and 70% were male. Hypertension (78%) and LV hypertrophy (LV mass index 143 ± 36 g/m2) were characteristic. Fifty-three percent of these patients developed symptoms at 21 ± 19 months after diagnosis. During 7.5 ± 6.7-year follow-up, 5-year mortality was 48%. After multivariable adjustment, there was no survival advantage with AVR in asymptomatic, severe AS with LV dysfunction (p = 0.51). Conclusions: In severe AS, the prevalence of asymptomatic LV systolic dysfunction is 0.4%. Despite an asymptomatic clinical status, patients with severe AS and LV ejection fraction <50% have a poor prognosis, with or without AVR.

Original languageEnglish (US)
Pages (from-to)2325-2329
Number of pages5
JournalJournal of the American College of Cardiology
Volume60
Issue number22
DOIs
StatePublished - Dec 4 2012

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Keywords

  • aortic stenosis
  • echocardiography
  • heart failure
  • valve surgery
  • valves

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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