Faculty Collaboration Database

Electrocardiographic left atrial abnormality and risk of heart failure. J Electrocardiol 2024;82:7-10

Date

11/23/2023

Pubmed ID

37992497

DOI

10.1016/j.jelectrocard.2023.11.006

Scopus ID

2-s2.0-85177827720 (requires institutional sign-in at Scopus site)

Abstract

INTRODUCTION: The association and the racial differences of the electrocardiographic markers of left atrial abnormality (ECG-LAA) with heart failure (HF) are unclear.

METHODS: We examined the cross-sectional association of ECG-LAA, defined as deep terminal negativity of P wave in V1 (DTNPV1) with HF in 8460 participants (51.5% women, 60.3 ± 13.5 age and 49.8% Whites) from the US Third National Health and Nutrition Examination Survey. We excluded participants without P-wave in their ECG or with ECG findings that interfere with measurements of P-wave. DTNPV1 was automatically measured from ECGs processed at a central lab. Values of DTNPV1 ≥ 100 μV were considered abnormal. Past medical history of HF was identified through health interviews. Multivariable logistic regression analysis was used to examine the associations of DTNPV1 with HF.

RESULTS: Abnormal DTNPV1 was detected in 3.2% (n = 271) of the participants. HF was significantly more common in individuals with abnormal, compared to those with normal, DTNPV1 (14.7% vs. 4.8%, respectively; p-value <0.001). In a model adjusted for socio-demographics and cardiovascular risk factors, ECG-LAA was associated with 98% increased odds of HF (OR (95% CI): 1.98 (1.30-3.01), p < 0.001). This association was stronger in non-White (vs. White) participants (OR (95% CI): 3.14 (1.82-5.43) vs. 1.01 (0.51-1.97), respectively; interaction p-value =0.01), but consistent in subgroups stratified by age and sex.

CONCLUSIONS: ECG-LAA, defined as abnormal DTNPV1, is associated with an increased risk of HF, underscoring the role of atrial disease in developing HF. Racial differences in this association exist, possibly suggesting considering ECG-LAA in personalized assessments of HF risk.

Author List

Li S, Ahmad MI, Li Y, Soliman EZ

Author

Muhammad Imtiaz Ahmad MBBS Assistant Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Arrhythmias, Cardiac
Cross-Sectional Studies
Electrocardiography
Female
Heart Diseases
Heart Failure
Humans
Male
Middle Aged
Nutrition Surveys
Risk Factors