• Family practice · Aug 2024

    Point-of-care ultrasound to assess left ventricular ejection fraction in heart failure in unselected patients in primary care: a systematic review.

    • Perrine Allimant, Lucas Guillo, Thomas Fierling, Andry Rabiaza, and Isabelle Cibois-Honnorat.
    • Department of General Medicine, University of Aix-Marseille, Marseille, France.
    • Fam Pract. 2024 Aug 20.

    BackgroundHeart failure (HF) is the most frequent cardiovascular pathology in primary care. Echocardiography is the gold standard for diagnosis, follow-up, and prognosis of HF. Point-of-care ultrasound (POCUS) is of growing interest in daily practice.AimThis study aimed to systematically review the literature to evaluate left ventricular ejection fraction (LVEF) assessment of unselected patients in primary care by non-expert physicians with cardiac POCUS (cPOCUS).MethodsWe searched in Medline, Embase, and Pubmed up to January 2024 for interventional and non-interventional studies assessing LVEF with cPOCUS in unselected patients with suspected or diagnosed HF in hospital or outpatient settings, performed by non-expert physicians.ResultsForty-two studies were included, involving 6598 patients, of whom 60.2% were outpatients. LVEF was assessed by 351 non-expert physicians after an initial ultrasound training course. The LVEF was mainly assessed by visual estimation (90.2%). The most frequent views were parasternal long/short axis, and apical 4-chamber. The median time of cPOCUS was 8 minutes. A strong agreement was found (κ = 0.72 [0.63; 0.83]) compared to experts when using different types of ultrasound devices (hand-held and standard), and agreement was excellent (κ = 0.84 [0.71; 0.89]) with the same device. Training course combined a median of 4.5 hours for theory and 25 cPOCUS for practice.ConclusionThe use of cPOCUS by non-expert physicians after a short training course appears to be an accurate complementary tool for LVEF assessment in daily practice. Its diffusion in primary care could optimize patient management, without replacing specialist assessment.© The Author(s) 2024. Published by Oxford University Press. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.

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