Language

English

Publication Date

7-15-2024

Journal

American Journal of Hypertension

DOI

10.1093/ajh/hpae035

PMID

38554284

PMCID

PMC11247134

PubMedCentral® Posted Date

5-30-2024

PubMedCentral® Full Text Version

Post-print

Abstract

Background: Nighttime blood pressure (BP) has greater prognostic importance for cardiovascular disease (CVD) than daytime BP, but less is known about nighttime and daytime BP associations with measures of subclinical CVD.

Methods: Among 897 Systolic Blood Pressure Intervention Trial Study (SPRINT) participants with 24-hour ambulatory BP monitoring obtained near the 27-month study visit, 849 (95%) had N-terminal pro-B-type natriuretic peptide (NT-proBNP) and high-sensitivity cardiac troponin T (hs-cTnT) measured at the 24-month study visit. Multivariable linear regression analyses were performed to evaluate the associations of nighttime and daytime BP with cardiac biomarker levels.

Results: The mean age was 69 ± 12 years, 28% were African American, and mean nighttime and daytime SBP were 121 ± 16 mm Hg and 132 ± 14 mm Hg, respectively. In multivariable models, compared with the lowest tertile of nighttime systolic BP, the highest tertile was associated with 48% higher NT-proBNP levels (adjusted geometric mean ratio [GMR] = 1.48, 95% CI: 1.22, 1.79), and 19% higher hs-cTnT levels (adjusted GMR = 1.19, 95% CI: 1.07, 1.32). In contrast, the highest vs. lowest tertile of daytime systolic BP was not associated with NT-proBNP (adjusted GMR = 1.09, 95% CI: 0.88, 1.34), but was associated with 16% higher hs-cTnT levels (adjusted GMR = 1.16, 95% CI: 1.04, 1.30). Similar results were observed using diastolic BP.

Conclusions: In SPRINT, both higher nighttime and daytime BP were independently associated with higher hs-cTnT levels, but only higher nighttime BP was associated with higher NT-proBNP levels.

Keywords

Humans, Blood Pressure Monitoring, Ambulatory, Male, Female, Aged, Natriuretic Peptide, Brain, Troponin T, Middle Aged, Blood Pressure, Circadian Rhythm, Peptide Fragments, Biomarkers, Hypertension, Time Factors, Aged, 80 and over, Cardiovascular Diseases, ambulatory blood pressure, blood pressure, hypertension, natriuretic peptide, nocturnal hypertension, SPRINT, troponin

Published Open-Access

yes

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