Self-Measured Home Orthostatic Hypo- and Hypertension-Prevalence and Associations With Atherosclerosis and Arterial

F Frey1, P Af Geijerstam2, F Iredahl2,3

  • 1Department of Internal Medicine and Department of Health, Medicine and Caring Sciences, Linkoping University, Norrköping, Sweden.

PubMed

Insights

Self-measured home orthostatic hypotension and hypertension are linked to atherosclerosis markers. Home orthostatic hypotension also relates to arterial stiffness, highlighting the importance of monitoring blood pressure at home.

Area of Science:

  • Cardiology
  • Vascular Biology
  • Public Health

Background:

  • In-office orthostatic blood pressure (BP) dysregulation is a known cardiovascular risk predictor.
  • The prevalence and atherosclerotic associations of home-measured orthostatic BP reactions are not well-established in large populations.

Purpose of the Study:

  • To investigate the prevalence of home orthostatic hypotension (home OH) and home orthostatic hypertension (home OHT).
  • To examine the association of home OH and home OHT with markers of atherosclerosis, including carotid plaques, pulse wave velocity (PWV), and coronary artery calcium score (CACS).

Main Methods:

  • Cross-sectional analysis of 4556 participants from the Swedish CArdioPulmonary bioImage Study (SCAPIS).
  • Home BP measurements included two standing BP readings using an Omron M10-IT device.
  • Home OH defined as systolic BP drop ≥20 mmHg or diastolic BP drop ≥10 mmHg upon standing. Home OHT defined as systolic BP increase ≥20 mmHg upon standing.

Main Results:

  • 6.4% of participants had home OH (n=293) and 3.1% had home OHT (n=139).
  • Participants with home OH or home OHT showed higher prevalence of carotid plaques compared to those with normal reactions (65.5% and 64.7% vs. 55.3%).
  • Home OH was associated with higher PWV (9.2±1.4 vs. 8.9±1.3 m/s) and increased likelihood of CACS ≥100 (17.4% vs. 11.6%). No significant associations were found for home OHT with PWV or CACS.

Conclusions:

  • Self-measured home orthostatic hypotension and hypertension are associated with subclinical atherosclerosis.
  • Home orthostatic hypotension specifically is linked to arterial stiffness, suggesting its clinical relevance beyond simple BP drops.
Abstract

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