Assessment and Clinical Implications of Visceral Obesity
Definition and Pathophysiology
- The American College of Endocrinology and the American Association of Clinical Endocrinologists define Adiposity‑Based Chronic Disease (ABCD) as a neurohormonal‑driven dysregulation of energy balance that produces abnormal mass, distribution, and function of adipose tissue. 1
- The American Heart Association notes that visceral adipose tissue (VAT) accumulation represents the high‑risk phenotype for cardiometabolic complications and is distinct from subcutaneous adipose tissue (SAT). 3
Metabolic and Cardiovascular Risk Associated with VAT
- Excess VAT is independently correlated with insulin resistance, atherogenic dyslipidemia, type 2 diabetes, and cardiovascular disease, regardless of total body fat. 3
- Android (abdominal) obesity carries a significantly higher risk of cardiometabolic events compared with gynoid (lower‑body) obesity. 3
- The American College of Endocrinology/AACE emphasizes that BMI alone does not reflect adipose distribution or health impact; waist circumference and waist‑hip ratio are essential additional measurements. 1, 3
Endocrine Disorders Producing Central Fat Redistribution
- Cushing syndrome manifests with central obesity and characteristic fat redistribution. 1
- Hypothyroidism can lead to generalized weight gain and possible myxedema. 1
- Polycystic ovary syndrome is associated with an android pattern of fat distribution in women. 3
Recommended Clinical Evaluation of Visceral Obesity
- Measurement of waist circumference and calculation of waist‑hip ratio should be performed to assess visceral adiposity. 3
- Patients with visceral obesity should be screened for hypertension, diabetes, and dyslipidemia, the most common complications of this condition. 1, 2
- Differentiating visceral from subcutaneous fat distribution is essential for accurate risk stratification. 3
- The American College of Endocrinology/AACE recommends routine cardiometabolic risk factor screening in individuals identified with visceral obesity. 1