Original Article | Published:

Clinical Science

Genetic risk factors influence nighttime blood pressure and related cardiovascular complications in patients with coronary heart disease

Hypertension Research volume 41, pages 5359 (2018) | Download Citation

Abstract

Genetic predisposition of elevated nighttime blood pressure (BP) in patients with coronary heart disease is unknown. We evaluated genetic predisposition and the relationship between elevated nighttime BP and cardiovascular complications over a median of 8.6 years of observation of hypertensive subjects with coronary atherosclerosis confirmed by coronary angiography. Genetic Risk Score (GRS19) was constructed to evaluate the additive effect of single-nucleotide polymorphisms for daytime and nighttime BP. The Receiver Operating Characteristic was used for determination of cutoff points for daytime BP (systolic BP (SBP) 133 mm Hg and diastolic BP (DBP) 77 mm Hg) and nighttime BP (SBP 122 mm Hg and DBP 73 mm Hg). The curves of cumulative incidence revealed an increased risk of major advanced cardiovascular events in subjects with elevated nighttime BP compared with those without elevated nighttime BP during the follow-up period. Subjects with normal daytime and elevated nighttime BP exhibited increased GRS19 compared with those with normal daytime and nighttime BPs (8.6±3.0 vs. 7.9±3.0, P<0.01). After adjustment for cardiovascular risk factors, GRS19 determined nighttime SBP (β 0.4, 95% confidence interval (CI) 0.3–0.5, P<0.01). Our study confirmed that elevated nighttime SBP was genetically determined and related to an increased risk of major adverse coronary events in patients with confirmed coronary atherosclerosis.

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Author information

Affiliations

  1. Department of Pharmacology, Medical University of Gdansk, Gdansk, Poland

    • Marcin Wirtwein
  2. Department of Clinical Sciences, Lund University, Malmö, Sweden

    • Olle Melander
    •  & Marketa Sjőgren
  3. Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland

    • Michal Hoffmann
    •  & Krzysztof Narkiewicz
  4. I Department of Cardiology, Medical University of Gdansk, Gdansk, Poland

    • Marcin Gruchala
    •  & Wojciech Sobiczewski

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The authors declare no conflict of interest.

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Correspondence to Marcin Wirtwein.

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DOI

https://doi.org/10.1038/hr.2017.87

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