Cited by 69Obstructive Sleep Apnea ResearchHormonal Regulation and HypertensionSodium Intake and Health

Increased Dietary Sodium Is Related to Severity of Obstructive Sleep Apnea in Patients With Resistant Hypertension and Hyperaldosteronism

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Pimenta, Eduardo, Stowasser, Michael, Gordon, Richard D., Harding, Susan M., Batlouni, Michel, Zhang, Bin, Oparil, Suzanne, Calhoun, David A.·2013·Chest

Abstract

Background Obstructive sleep apnea (OSA) is a strong and independent risk factor for the development of hypertension, particularly resistant hypertension, and cardiovascular diseases. Patients with resistant hypertension have a high prevalence of OSA in association with elevated aldosterone levels, high salt intake, and salt-sensitive BP. The objective of this study was to determine whether dietary salt and aldosterone are associated with severity of OSA in patients with resistant hypertension.Methods Ninety-seven patients with resistant hypertension were prospectively evaluated by overnight polysomnography and 24-h urinary sodium and aldosterone levels while maintaining their usual diet. Hyperaldosteronism was defined as a plasma renin activity of < 1 ng/mL/h and urinary aldosterone level of ≥ 12 μg/24 h.Results Overall, patients' mean clinic BP was 156.3 ± 22.4/88.9 ± 13.3 mm Hg while taking an average of 4.3 ± 1.1 antihypertensive medications. Prevalence of OSA was 77.3%. Twenty-eight (28.9%) patients had hyperaldosteronism. Urinary sodium level was an independent predictor of severity of OSA only in patients with hyperaldosteronism.Conclusions The findings suggest that dietary salt is related to the severity of OSA in patients with resistant hypertension and hyperaldosteronism. The results support dietary salt restriction as a treatment strategy for reduction of OSA severity in these patients.

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Authors
Pimenta, E., Stowasser, M., Gordon, R. D., Harding, S. M., Batlouni, M., Zhang, B., Oparil, S., & Calhoun, D. A.
Affiliations
  • The University of Queensland (AU)
  • Instituto Dante Pazzanese de Cardiologia (BR)
  • Cincinnati Children's Hospital Medical Center (US)
  • University of Alabama at Birmingham (US)
Corresponding author
Calhoun, David A.
Venue
Chest
Publisher
Elsevier BV
Published
2013-04
Volume
143
Issue
4
Pages
978-983
ISSN
0012-3692 (ISSN-L)
OpenAlex
W1968354848
Cited by
69
References
44
Citations by year
2026: 3 · 2025: 2 · 2024: 2 · 2023: 9 · 2022: 6 · 2021: 3 · 2020: 4 · 2019: 4 · 2018: 3 · 2017: 5 · 2016: 6 · 2015: 3 · 2014: 10 · 2013: 9
FWCI
6.48
Type
journal article
Language
en
Open access
Locations
  • CHEST Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5ul1rr025777-04)
  • National Heart, Lung, and Blood Institute (HL-075614, R01HL075614, P50HL077100)
  • National Center for Research Resources (UL1-RR-025777, 5UL1 RR025777-04)
Topics
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
Keywords
obstructive sleep apnea, resistant hypertension, hyperaldosteronism, dietary sodium, salt intake, urinary aldosterone, urinary sodium, OSA severity, salt-sensitive hypertension, dietary salt restriction, plasma renin activity
MeSH terms
Aldosterone, Blood Pressure, Cross-Sectional Studies, Female, Humans, Hyperaldosteronism, Hypertension, Male, Middle Aged, Prospective Studies, Severity of Illness Index, Sodium, Sodium, Dietary, Comorbidity, Prevalence, Polysomnography, Sleep Apnea, Obstructive

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