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Clinical characteristics of isolated clinic hypertension

Ernest Vinyoles1, Angela Felip, Enriqueta Pujol

  • 1La Mina Primary Care Center, Catalan Health Institute, Barcelona, Spain. 23561evb@comb.es

Journal of Hypertension
|February 28, 2008
PubMed

Insights

Isolated clinic hypertension (ICH) affects 15-29% of patients, with specific 24-hour criteria being preferred. Physicians show low accuracy in predicting ICH, highlighting a need for improved diagnostic methods.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Clinical Diagnostics

Background:

  • Isolated clinic hypertension (ICH) is a condition where blood pressure is elevated in a clinical setting but normal during ambulatory monitoring.
  • Understanding the characteristics of ICH patients and the diagnostic capabilities of physicians is crucial for accurate hypertension management.

Purpose of the Study:

  • To compare the clinical features of patients with isolated clinic hypertension (ICH) against other hypertensive individuals.
  • To assess the accuracy of physicians in predicting a diagnosis of ICH.

Main Methods:

  • A multicenter, cross-sectional study involving 6176 hypertensive patients not on medication.
  • Ambulatory blood pressure monitoring (ABPM) was used, with suspected ICH prompting ABPM in 2611 cases.
  • ICH was defined using various clinical and ambulatory blood pressure thresholds (ICH1, ICH2, ICH3).

Main Results:

  • The prevalence of ICH varied from 15.5% to 29.2% based on the criteria used.
  • ICH patients were more likely to be female, older, non-smokers, obese, and non-dippers compared to other hypertensive individuals.
  • Physician prediction sensitivity and specificity for ICH ranged from 48.7% to 52.9% and 59.7% to 60.4%, respectively.

Conclusions:

  • The prevalence of ICH ranges from 15% to 29%, with 24-hour criteria recommended for diagnosis due to reduced bias.
  • Physicians demonstrate a low capacity for accurately predicting isolated clinic hypertension.
Abstract

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