Twenty-Four–Hour Central (Aortic) Systolic Blood Pressure: Reference Values and Dipping Patterns in Untreated Individuals

Author:

Weber Thomas1ORCID,Protogerou Athanase D.2,Agharazii Mohsen3,Argyris Antonis2ORCID,Aoun Bahous Sola4,Banegas Jose R.5ORCID,Binder Ronald K.1,Blacher Jacques6,Araujo Brandao Andréa7,Cruz Juan J.5,Danninger Kathrin1,Giannatasio Cristina8,Graciani Auxiliadora5,Hametner Bernhard9ORCID,Jankowski Piotr10ORCID,Li Yan11,Maloberti Alessandro8ORCID,Mayer Christopher C.912,McDonnell Barry J.13ORCID,McEniery Carmel M.1,Antonio Mota Gomes Marco14ORCID,Machado Gomes Annelise14ORCID,Lorenza Muiesan Maria15ORCID,Nemcsik Janos16,Paini Anna15,Rodilla Enrique17,Schutte Aletta E.181920,Sfikakis Petros P.2,Terentes-Printzios Dimitrios21ORCID,Vallée Alexandre6,Vlachopoulos Charalambos122ORCID,Ware Lisa23,Wilkinson Ian12,Zweiker Robert1,Sharman James E.1ORCID,Wassertheurer Siegfried9,

Affiliation:

1. Cardiology Department, Klinikum Wels-Grieskirchen, Austria (T.W., R.K.B., K.D.).

2. Cardiovascular Prevention and Research Unit, Clinic-Laboratory of Pathophysiology and First Department of Propeadeutic Internal Medicine, Laiko Hospital, Medical School, National and Kapodistrian University of Athens, Greece (A.D.P., A.A., P.P.S.).

3. Centre de Recherche Du CHU de Québec, Université Laval, Canada (M.A.).

4. Lebanese American University School of Medicine, Byblos, Lebanon (S.A.B.).

5. Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ and CIBER in Epidemiology and Public Health, Spain (J.R.B., J.J.C., A.G.).

6. AP-HP Centre-Université de Paris, Hôpital Hôtel-Dieu, Centre de diagnostic et de thérapeutique, France (J.B., A.V.).

7. State University of Rio de Janeiro, Brazil (A.A.B.).

8. School of Medicine and Surgery, Milano-Bicocca University and Cardiology 4, ASST GOM Niguarda, Milan, Italy (C.G., A.M.).

9. Austrian Institute of Technology, Vienna, Austria (B.H., C.C.M., S.W.).

10. Institute of Cardiology, Jagellonian University, Krakow, Poland (P.J.).

11. Centre for Vascular Evaluations, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (Y.L.).

12. Experimental Medicine and Immunotherapeutics, Addenbrooke’s Hospital, University of Cambridge, United Kingdom (C.M.M., I.W.).

13. Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, United Kingdom (B.J.M.).

14. Centro Universitario CESMAC, Alagoas, Brazil (M.A.M.G., A.M.G.).

15. Department of Clinical and Experimental Sciences, Centro per la Prevenzione e Cura dell’ipertensione Arteriosa, University of Brescia and ASST Spedali Civili, Italy (M.L.M., A.P.).

16. Department of Family Medicine, Semmelweis University, Budapest, Hungary (J.N.).

17. Universidad Cardenal Herrera-CEU, CEU Universities, Hospital de Sagunto, Valencia, Spain (E.R.).

18. School of Population Health, University of New South Wales, Sydney, Australia (A.E.S.).

19. The George Institute for Global Health, Sydney, Australia (A.E.S.).

20. Hypertension in Africa Research Team, SAMRC Unit for Hypertension and Cardiovascular Disease, North-West University, South Africa (A.E.S.).

21. First Department of Cardiology, Hippokration General Hospital, National and Kapodistrian University of Athens, Greece (D.T.-P., C.V.).

22. SAMRC/Wits Developmental Pathways for Health Research Unit, South Africa (L.W.).

23. DSI-NRF Centre of Excellence in Human Development, University of the Witwatersrand, South Africa (L.W.).

Abstract

Central (aortic) systolic blood pressure (cSBP) is the pressure seen by the heart, the brain, and the kidneys. If properly measured, cSBP is closer associated with hypertension-mediated organ damage and prognosis, as compared with brachial SBP (bSBP). We investigated 24-hour profiles of bSBP and cSBP, measured simultaneously using Mobilograph devices, in 2423 untreated adults (1275 women; age, 18–94 years), free from overt cardiovascular disease, aiming to develop reference values and to analyze daytime-nighttime variability. Central SBP was assessed, using brachial waveforms, calibrated with mean arterial pressure (MAP)/diastolic BP (cSBP MAP/DBPcal ), or bSBP/diastolic blood pressure (cSBP SBP/DBPcal ), and a validated transfer function, resulting in 144 509 valid brachial and 130 804 valid central measurements. Averaged 24-hour, daytime, and nighttime brachial BP across all individuals was 124/79, 126/81, and 116/72 mm Hg, respectively. Averaged 24-hour, daytime, and nighttime values for cSBP MAP/DBPcal were 128, 128, and 125 mm Hg and 115, 117, and 107 mm Hg for cSBP SBP/DBPcal , respectively. We pragmatically propose as upper normal limit for 24-hour cSBP MAP/DBPcal 135 mm Hg and for 24-hour cSBP SBP/DBPcal 120 mm Hg. bSBP dipping (nighttime-daytime/daytime SBP) was −10.6 % in young participants and decreased with increasing age. Central SBP SBP/DBPcal dipping was less pronounced (−8.7% in young participants). In contrast, cSBP MAP/DBPcal dipping was completely absent in the youngest age group and less pronounced in all other participants. These data may serve for comparison in various diseases and have potential implications for refining hypertension diagnosis and management. The different dipping behavior of bSBP versus cSBP requires further investigation.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Internal Medicine

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