Prehypertension in dyslipidemic individuals; relationship to metabolic parameters and intima-media thickness
David Karasek1, Helena Vaverkova, Milan Halenka
1Department of Internal Medicine III - Nephrology, Rheumatology and Endocrinology, University Hospital Olomouc, Czech Republic. david.karasek@fnol.cz
Insights
Prehypertension and hypertension are more common in individuals with dyslipidemia, particularly hypertriglyceridemia. These conditions are linked to increased intima-media thickness, indicating higher cardiovascular risk.
Area of Science:
- Cardiology
- Endocrinology
- Metabolic Syndrome
Background:
- Prehypertension, like hypertension, is a risk factor for cardiovascular disease.
- Dyslipidemia is a common metabolic disorder associated with increased cardiovascular risk.
Purpose of the Study:
- To determine the prevalence of prehypertension and hypertension across different dyslipidemic phenotypes.
- To examine the relationship between blood pressure and other atherosclerotic risk factors.
- To assess the atherogenic impact of prehypertension using carotid intima-media thickness (IMT).
Main Methods:
- 667 asymptomatic subjects were categorized into four dyslipidemic phenotypes based on apolipoprotein B (apoB) and triglycerides (TG) levels.
- Dyslipidemic Phenotype 1 (DLP1) with normal apoB/TG served as the control group.
- Measurements included blood pressure, lipid profiles, and carotid IMT.
Main Results:
- Prehypertension and hypertension were significantly more prevalent in all dyslipidemic groups compared to the normolipidemic control group.
- Blood pressure correlated with age, lipids, BMI, and waist circumference, with specific correlations for SBP and DBP with other metabolic markers.
- Intima-media thickness (IMT) was elevated in prehypertensive and hypertensive subjects across all dyslipidemic phenotypes.
Conclusions:
- Dyslipidemia is associated with a higher prevalence of prehypertension and hypertension.
- Hypertriglyceridemic individuals exhibited the highest combined prevalence of prehypertension and hypertension.
- Elevated IMT in prehypertensive and hypertensive individuals underscores their increased cardiovascular risk.
Introduction:
Like hypertension, prehypertension is associated with cardiovascular disease.
Aims:
The aim of this study was to evaluate: a) the prevalence of prehypertension/hypertension in individuals with various dyslipidemic phenotypes; b) the relation between blood pressure (BP) and other risk factors for atherosclerosis; c) atherogenic potential of prehypertension by the assessment of intima-media thickness of the arteria carotis communis (IMT).
Methods:
667 clinically asymptomatic subjects were divided into four dyslipidemic phenotypes (DLP) according to apolipoprotein B (apoB) and triglycerides (TG): DLP1 (n=198, normo-apoB/normo-TG), DLP2 (n=179, normo-apoB/hyper-TG), DLP3 (n=87, hyper-apoB/normo-TG), DLP4 (n=203, hyper-apoB/hyper-TG). DLP1 served as a control group.
Results:
There was significantly higher prevalence of prehypertension and hypertension in subjects with dyslipidemia (DLP2 43.0%, 41.3%; DLP3 42.5%, 29.9%; DLP4 42.4%, 47.8%) than in normolipidemic individuals (DLP1 32.8%, 20.2%). Systolic and diastolic blood pressure (SBP + DBP) correlated with age, total cholesterol, TG, non-HDL-cholesterol, body mass index and waist circumference; SBP additionally with C-peptide, fasting glycemia; DBP additionally with apoB, homeostasis model assessment (HOMA) and plasminogen activator inhibitor-1. The IMT of hypertensive and of prehypertensive subjects was higher than that of subjects with normal BP in all DLPs.
Conclusions:
The prevalence of prehypertension was higher in all dyslipidemic patients. The common prevalence of prehypertension/hypertension was highest in the hypertriglyceridemic subjects. Prehypertensive and hypertensive patients had higher IMT than normotensive individuals in all DLPs.
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