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The association between neck adiposity and long-term outcome.
Sigal Tal1,2, Ilya Litovchik2,3, Miriam M Klar1,2
1Department of Radiology, Assaf Harofeh Medical Center, Zerifin, Israel.
Plos One
|April 24, 2019
Summary
Neck fat volume, a novel obesity index, is linked to increased long-term cardiovascular mortality risk. This readily available measure may aid in stratifying patient outcomes for cardiovascular disease.
Area of Science:
- Cardiology
- Radiology
- Public Health
Background:
- Obesity indices like BMI and waist circumference correlate with poor cardiovascular outcomes.
- Neck circumference has been previously linked to central adiposity.
Purpose of the Study:
- To investigate the association between neck fat volume (NFV) and long-term cardiovascular outcomes.
- To assess the utility of the NFV/height ratio (NHR) as a predictor of all-cause mortality.
Main Methods:
- Retrospective analysis of 302 patients undergoing CT angiography for suspected cerebrovascular accident.
- Neck fat volume (NFV) assessed via 3D reconstructions and normalized to height (NHR).
- Univariate and multivariate analyses used to determine associations with all-cause mortality.
Main Results:
- The median NHR was 492.53cm2. Median follow-up was 41.2 months, with 13.2% all-cause mortality.
- Multivariate analysis revealed an independent association between the upper quartile of NHR and all-cause mortality (HR=2.279, p=.011).
- NHR demonstrated a significant correlation with poor long-term outcomes.
Conclusions:
- The NFV/height ratio (NHR) is a readily available anthropometric index associated with increased long-term mortality.
- NHR may serve as a valuable risk-stratifying tool for cardiovascular disease.
- Further validation in larger studies is recommended.
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