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Association of Left Atrial Structure and Function With Heart Failure in Older Adults.

TitleAssociation of Left Atrial Structure and Function With Heart Failure in Older Adults.
Publication TypeJournal Article
Year of Publication2022
AuthorsInciardi RM, Claggett B, Minamisawa M, Shin S-H, Selvaraj S, Gonçalves A, Wang W, Kitzman D, Matsushita K, Prasad NG, Su J, Skali H, Shah AM, Chen LYee, Solomon SD
JournalJ Am Coll Cardiol
Date Published2022 04 26
KeywordsAged, Aged, 80 and over, Biomarkers, Female, Heart Atria, Heart Diseases, Heart Failure, Humans, Male, Natriuretic Peptide, Brain, Peptide Fragments, Stroke Volume, Ventricular Function, Left

BACKGROUND: Limited data exist to characterize novel measures of left atrial (LA) structure and function in older adults without prevalent heart failure (HF).

OBJECTIVES: The aim was to assess reference range of LA measures, their associations with N-terminal pro-B-type natriuretic-peptide (NT-proBNP) and the related risk for incident HF or death.

METHODS: We analyzed LA structure (LA maximal [LAViMax] and minimal volume indexed by body surface area) and function (LA emptying fraction, LA reservoir, conduit, and contraction strain) in 4,901 participants from the ARIC (Atherosclerosis Risk In Communities) study (mean age 75 ± 5 years, 40% male, and 19% Black) without prevalent HF. We assessed sex-specific 10th and 90th percentile ARIC-based reference limits in 301 participants free of prevalent cardiovascular disease, and related LA measures to NT-proBNP and incident HF or death (median follow-up of 5.5 years) in the whole ARIC cohort.

RESULTS: Approximately 20% of the overall population had LA abnormalities according to the ARIC-based reference limit. Each LA measure was associated with NT-proBNP and, except for LAViMax, with incident HF or death after multivariable adjustment (including left ventricular function and NT-proBNP). Results were consistent in participants with normal LAViMax (P for interaction > 0.05). LA measures were prognostic for both incident HF with preserved ejection fraction or death and incident HF with reduced ejection fraction or death. When added to HF risk factors and NT-proBNP (baseline C-statistics = 0.74) all LA measures, except for LAViMax, significantly enhanced the prognostic accuracy.

CONCLUSIONS: Novel measures of LA structure and function, but not standard assessment by LAViMax, are associated with increased risk of incident HF or death regardless of measures of left ventricular function and NT-proBNP.

Alternate JournalJ Am Coll Cardiol
PubMed ID35450571
Grant ListHHSN268201700001I / HL / NHLBI NIH HHS / United States
HHSN268201700002I / HL / NHLBI NIH HHS / United States
HHSN268201700003I / HL / NHLBI NIH HHS / United States
HHSN268201700004I / HL / NHLBI NIH HHS / United States
HHSN268201700005I / HL / NHLBI NIH HHS / United States
R01 HL141288 / HL / NHLBI NIH HHS / United States
R01 HL126637 / HL / NHLBI NIH HHS / United States
K24 HL155813 / HL / NHLBI NIH HHS / United States