Key result
Visceral and ectopic adipose tissue deposition may increase cardiovascular risk, highlighting the need for a new obesity classification to improve risk stratification.
Why the study?
BMI-defined obesity is heterogeneous in predicting prognosis, and limited contradictory data exist on the direct effect of visceral adipose tissue on mortality, highlighting the need for a new classification to improve risk stratification.
Highlights the limitations of BMI in assessing cardiovascular risk in obesity and emphasizes the need for a new classification incorporating visceral and ectopic fat.
Large prospective studies involving several hundred thousands to several million people from the general population have shown that people with obesity have a higher overall mortality rate than people with a normal BMI. The use of BMI in predicting the prognosis of people with cardiovascular disease has led to the inverse relationship between BMI and risk of death. Obesity, determined by BMI, is very heterogeneous in determining prognosis in different groups of patients. The use of imaging techniques during the examination revealed that poor health effects are associated with the accumulation of visceral adipose tissue. New evidence also suggests that ectopic deposition of fat (in the liver, in the epicardium) may increase the risk of developing atherosclerosis and cardiovascular disease and type 2 diabetes. The number of studies examining the direct effect of visceral adipose tissue on mortality is very limited. Their results are extremely contradictory, based not on prospective observations, but on the construction of statistical models. Adipose tissue is currently considered as an endocrine and paracrine organ. Deposition of adipose tissue in the internal organs, in addition to metabolic disorders), probably leads to the formation of local adverse effects. The above data lead us to the conclusion that it is necessary to create a new classification that would improve the stratification of the risk of developing cardiovascular disease and death in people with obesity.
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Miklishanskaya et al. (2021) conducted a review in Cardiovascular disease and obesity. Obesity and visceral adipose tissue was evaluated. Visceral and ectopic adipose tissue deposition may increase cardiovascular risk, highlighting the need for a new obesity classification to improve risk stratification.
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