Hypertension and obesity are very common and complex cardiovascular (CV) risk factors. Our aim was to provide a comprehensive assessment of associations between visceral fat depots and vascular or cardiac complications of hypertension.
Methods:
All the consecutive patients (age: 45–80 years old) scheduled for elective coronary angiography in the Department of Cardiology were screened, and 400 patients were included into the study group. All the patients had a comprehensive clinical assessment focused on hypertension and obesity, risk factors, fat depots, and several hypertension-related vascular or cardiac complications.
Results:
The study group (n = 400; F/M: 140/260; age: 61 ± 7 years) included patients with hypertension (n = 354; 88.5%) and normal blood pressure (n = 46; 11.5%) and individuals with obesity (n = 192; 48%), diabetes (n = 139; 35%), metabolic syndrome (n = 240; 60%), and coronary artery disease (n = 286; 71%). Patients with higher degrees of hypertension (grade 3 vs. 2 vs. 1) showed increased body mass index (BMI) and waist circumference and ultrasound indexes of perivascular, epicardial, and abdominal visceral fat with no differences in age, waist–hip ratio, and subcutaneous fat. Both visceral fat depots: perivascular fat (carotid extra-media thickness) and abdominal visceral fat (intra-abdominal thickness) assessed as single measures and ratios were significantly increased in hypertensive patients with high versus low global CV risk in a hypertension-focused risk model (differences more pronounced in patients ≤60 years old). Visceral fat parameters were not independent, but rather additive to general obesity (BMI), except for visceral abdominal fat depot.
Conclusions:
Visceral abdominal and perivascular fat depots assessed as ultrasound indexes are associated with complications of hypertension and CV risk indicators, especially in patients with a mild-to-moderate hypertension and in younger patients.
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