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Bedtime hypertension treatment improves cardiovascular risk reduction: the Hygia Chronotherapy Trial

Open access
Hermida, Ramón C, Crespo, Juan J, Domínguez-Sardiña, Manuel, Otero, Alfonso, Moyá, Ana, Ríos, María T, Sineiro, Elvira, Castiñeira, María C, Callejas, Pedro A, Pousa, Lorenzo, Salgado, José L, Durán, Carmen, Sánchez, Juan J, Fernández, José R, Mojón, Artemio, Ayala, Diana E, for the Hygia Project Investigators·2020·European Heart Journal

Abstract

Aims: The Hygia Chronotherapy Trial, conducted within the clinical primary care setting, was designed to test whether bedtime in comparison to usual upon awakening hypertension therapy exerts better cardiovascular disease (CVD) risk reduction. Methods and results: In this multicentre, controlled, prospective endpoint trial, 19 084 hypertensive patients (10 614 men/8470 women, 60.5 ± 13.7 years of age) were assigned (1:1) to ingest the entire daily dose of ≥1 hypertension medications at bedtime (n = 9552) or all of them upon awakening (n = 9532). At inclusion and at every scheduled clinic visit (at least annually) throughout follow-up, ambulatory blood pressure (ABP) monitoring was performed for 48 h. During the 6.3-year median patient follow-up, 1752 participants experienced the primary CVD outcome (CVD death, myocardial infarction, coronary revascularization, heart failure, or stroke). Patients of the bedtime, compared with the upon-waking, treatment-time regimen showed significantly lower hazard ratio—adjusted for significant influential characteristics of age, sex, type 2 diabetes, chronic kidney disease, smoking, HDL cholesterol, asleep systolic blood pressure (BP) mean, sleep-time relative systolic BP decline, and previous CVD event—of the primary CVD outcome [0.55 (95% CI 0.50–0.61), P < 0.001] and each of its single components (P < 0.001 in all cases), i.e. CVD death [0.44 (0.34–0.56)], myocardial infarction [0.66 (0.52–0.84)], coronary revascularization [0.60 (0.47–0.75)], heart failure [0.58 (0.49–0.70)], and stroke [0.51 (0.41–0.63)]. Conclusion: Routine ingestion by hypertensive patients of ≥1 prescribed BP-lowering medications at bedtime, as opposed to upon waking, results in improved ABP control (significantly enhanced decrease in asleep BP and increased sleep-time relative BP decline, i.e. BP dipping) and, most importantly, markedly diminished occurrence of major CVD events. Trial registration: ClinicalTrials.gov, number NCT00741585.

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Metadata

Authors
Hermida, R. C., Crespo, J. J., Domínguez-Sardiña, M., Otero, A., Moyá, A., Ríos, M. T., Sineiro, E., Castiñeira, M. C., Callejas, P. A., Pousa, L., Salgado, J. L., Durán, C., Sánchez, J. J., Fernández, J. R., Mojón, A., Ayala, D. E., & for the Hygia Project Investigators
Venue
European Heart Journal
Published
2019-10-22
Volume
41
Issue
48
Pages
4565-4576
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W2982141734
Cited by
467
References
7
FWCI
40.26
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Bedtime hypertension treatment improves cardiovascular risk reduction: the Hygia Chronotherapy Trial. https://app.cochat.ai/papers/10.1093/eurheartj/ehz754
The paper
Hermida, R. C., Crespo, J. J., Domínguez-Sardiña, M., Otero, A., Moyá, A., Ríos, M. T., Sineiro, E., Castiñeira, M. C., Callejas, P. A., Pousa, L., Salgado, J. L., Durán, C., Sánchez, J. J., Fernández, J. R., Mojón, A., Ayala, D. E., & for the Hygia Project Investigators. (2020). Bedtime hypertension treatment improves cardiovascular risk reduction: the Hygia Chronotherapy Trial. European Heart Journal. https://doi.org/10.1093/eurheartj/ehz754

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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