Metabolic risk factors in white coat hypertensives

E. Marchesi, G. Perani, F. Falaschi, C. Negro, O. Catalano, V. Ravetta, G. Finardi

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Metabolic disturbances such as hyperinsulinaemia, dislipoproteinaemia and glucose intolerance are often associated with essential hypertension and markedly affect cardiovascular morbidity in hypertensive patients. In order to shed some light on the prognostic significance of white coat hypertension (raised clinic and normal ambulatory blood pressure), we compared the metabolic profile in a group of white coat and sustained previously untreated hypertensives. We studied 84 newly detected hypertensive patients (49 men, 35 women, 47 ± 8 years, range 28-59 years). Subjects with obesity (BMI > 30), NIDDM and target organ damage were excluded. Ambulatory blood press ure monitoring was performed by SpaceLabs 90207-31. Total cholesterol and triglycerides, LDL-cholesterol, HDL-cholesterol (HDL-C) and subclasses HDL2 and HDL3 cholesterol as well as apolipoprotein A1 and B were measured in fasting plasma. Glucose and insulin were determined in fasting and postload (glucose 75 g plasma. Twenty patients (24%, 8 men and 12 women) were classified as white coat hypertensives. No differences in age, BMI and waist to hip ratio were observed between white coat and sustained hypertensive patients. Plasma glucose and lipoprotein levels were similar in the two groups. Fasting and postload insulin levels were significantly lower in white coat hypertensives (fasting insulin 7.1 ± 2.9 vs. 12 ± 8.6 μU/ml, P <0.02; insulin 120 minutes 48 ± 27 vs. 65 ± 41 μU/ml, P<0.05); glucose/insulin rate was higher in white coat than in sustained hypertensive patients (15 ± 7 vs. 11 ± 7, P = 0.03). White coat hypertensives do not share the metabolic pattern with sustained hypertensive patients and are likely to be at a lower risk for cardiovascular morbidity.

Original languageEnglish
Pages (from-to)475-479
Number of pages5
JournalJournal of Human Hypertension
Issue number7
Publication statusPublished - 1994


  • Cardiovascular risk factors
  • Metabolic risk factors
  • White coat hypertension

ASJC Scopus subject areas

  • Internal Medicine


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