Gina Sado , Katrin Kemp Gudmundsdottir , Carl Bonander , Mattias Ekström , Johan Engdahl , Emma Svennberg
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引用次数: 0
Abstract
Background
Atrial fibrillation (AF) screening should be considered in elderly patients with high risk of stroke, which include individuals with hypertension. The biomarker N-terminal prohormone of brain natriuretic peptide (NT-proBNP) can predict incident AF and is increased in hypertensive individuals. The aim of this study is to investigate the incidence of screening-detected AF in elderly individuals in relation to NT-proBNP and hypertension.
Methods
STROKESTOP II is a randomized controlled trial in which 75/76-years-old individuals were invited to a screening study for AF using NT-proBNP as a discriminator of high risk. In this sub-study, a prior hypertension diagnosis was self-reported by participants and measured blood pressure was stratified into hypertension-grades. Individuals with both increased blood pressure (≥140 mmHg) and NT-proBNP ≥ 125 ng/L were defined as a high-risk group. The lowest risk-group was defined as normotensive participants with NT-proBNP < 125 ng/L.
Results
NT-proBNP increased gradually for every hypertension-grade above hypertension-grade 1 compared to normotensive participants. Screening-detected AF was most common in normotensive participants with increased NT-proBNP (n = 90/1922, 4.7 %), followed by patients with both NT-proBNP > 125 ng/l and SBP ≥ 140 mmHg, (AF = 65/1741, 3.7 %) compared to the low-risk group (AF = 2/1444, 0.1 %), p < 0.001.
Conclusion
NT-proBNP is elevated in elderly patients with hypertension and increases with grades of hypertensive disease. NT-proBNP is a strong predictor of AF regardless of high blood pressure, and the risk for screening-detected AF is very low in participants with normal blood pressure and low NT-proBNP. A combination of blood pressure and NT-proBNP could identify suitable participants for AF screening.
期刊介绍：
IJC Heart & Vasculature is an online-only, open-access journal dedicated to publishing original articles and reviews (also Editorials and Letters to the Editor) which report on structural and functional cardiovascular pathology, with an emphasis on imaging and disease pathophysiology. Articles must be authentic, educational, clinically relevant, and original in their content and scientific approach. IJC Heart & Vasculature requires the highest standards of scientific integrity in order to promote reliable, reproducible and verifiable research findings. All authors are advised to consult the Principles of Ethical Publishing in the International Journal of Cardiology before submitting a manuscript. Submission of a manuscript to this journal gives the publisher the right to publish that paper if it is accepted. Manuscripts may be edited to improve clarity and expression.
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