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Prognostic Relevance of Left Atrial Dysfunction in Heart Failure With Preserved Ejection Fraction

Open access
Santos, Angela B.S., Roca, Gabriela Querejeta, Claggett, Brian, Sweitzer, Nancy K., Shah, Sanjiv J., Anand, Inder S., Fang, James C., Zile, Michael R., Pitt, Bertram, Solomon, Scott D., Shah, Amil M.·2016·Circulation: Heart Failure

Abstract

Background—: Left atrial (LA) size is an established marker of risk for adverse outcomes in heart failure with preserved ejection fraction (HFpEF). However, the independent prognostic importance of LA function in HFpEF is not known. Methods and Results—: We assessed LA function measured by speckle-tracking echocardiography in 357 patients with HFpEF enrolled in the Treatment Of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist (TOPCAT) trial who were in sinus rhythm at the time of echocardiography. Lower peak LA strain, indicating LA dysfunction, was associated with older age, higher prevalence of atrial fibrillation and left ventricular (LV) hypertrophy, worse LV and right ventricular systolic function, and worse LV diastolic function. At a mean follow-up of 31 months (interquartile range, 18–43months), 91 patients (25.5%) experienced the primary composite end point of cardiovascular death, HF hospitalization, and aborted sudden death. Lower peak LA strain was associated with a higher risk of the composite end point (hazard ratio, 0.96 per unit of reduction in strain; 95% confidence interval, 0.94–0.99; P =0.009) and of HF hospitalization alone (hazard ratio, 0.95 per unit of reduction in strain; 95% confidence interval, 0.92–0.98; P =0.003). The association of LA strain with incident HF hospitalization remained significant after adjustment for clinical confounders, but not after further adjustment for LV global longitudinal strain and the E/E′ ratio, parameters of LV systolic and diastolic function, respectively. Conclusions—: LA dysfunction in HFpEF is associated with a higher risk of HF hospitalization independent of potential clinical confounders, but not independent of LV strain and filling pressure. Impairment in LV systolic and diastolic function largely explains the association between impaired LA function and higher risk of HF hospitalization in HFpEF. Clinical Trial Registration—: URL: http://www.clinicaltrials.gov . Unique identifier: NCT00094302.

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Crossref · 10.1161/circheartfailure.115.002763

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Metadata

Authors
Santos, A. B. S., Roca, G. Q., Claggett, B., Sweitzer, N. K., Shah, S. J., Anand, I. S., Fang, J. C., Zile, M. R., Pitt, B., Solomon, S. D., & Shah, A. M.
Venue
Circulation: Heart Failure
Published
2016-04
Volume
9
Issue
4
Pages
e002763-e002763
ISSN
  • 1941-3289 (ISSN-L)
  • 1941-3297
OpenAlex
W2342191447
Cited by
326
References
45
FWCI
16.68
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Prognostic Relevance of Left Atrial Dysfunction in Heart Failure With Preserved Ejection Fraction. https://app.cochat.ai/papers/10.1161/circheartfailure.115.002763
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Santos, A. B. S., Roca, G. Q., Claggett, B., Sweitzer, N. K., Shah, S. J., Anand, I. S., Fang, J. C., Zile, M. R., Pitt, B., Solomon, S. D., & Shah, A. M. (2016). Prognostic Relevance of Left Atrial Dysfunction in Heart Failure With Preserved Ejection Fraction. Circulation: Heart Failure. https://doi.org/10.1161/circheartfailure.115.002763

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