Quantifying the severity of sarcopenia in patients with cancer of the head and neck

Existing skeletal muscle index (SMI) thresholds for sarcopenia are inconsistent, and do not reflect severity of depletion. In this study we aimed to define criterion values for moderate and severe skeletal muscle depletion based on the risk of mortality in a population of patients with head and neck...

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Published in:Clinical nutrition (Edinburgh, Scotland) Scotland), 2024-04, Vol.43 (4), p.989-1000
Main Authors: Kubrak, Catherine, Martin, Lisa, Grossberg, Aaron J., Olson, Brennan, Ottery, Faith, Findlay, Merran, Bauer, Judith D., Jha, Naresh, Scrimger, Rufus, Debenham, Brock, Chua, Neil, Walker, John, Baracos, Vickie
Format: Article
Language:English
Subjects:
Body composition
Classification
Diagnostic criteria
Diagnostic imaging
Skeletal muscle
Survival
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Summary:Existing skeletal muscle index (SMI) thresholds for sarcopenia are inconsistent, and do not reflect severity of depletion. In this study we aimed to define criterion values for moderate and severe skeletal muscle depletion based on the risk of mortality in a population of patients with head and neck cancer (HNC). Additionally, we aimed to identify clinical and demographic predictors of skeletal muscle depletion, evaluate the survival impact of skeletal muscle depletion in patients with minimal nutritional risk or good performance status, and finally, benchmarking SMI values of patients with HNC against healthy young adults. Population cohort of 1231 consecutive patients and external validation cohorts with HNC had lumbar SMI measured by cross-sectional imaging. Optimal stratification determined sex-specific thresholds for 2-levels of SMI depletion (Class I and II) based on overall survival (OS). Adjusted multivariable regression analyses (tumor site, stage, performance status, age, sex, dietary intake, weight loss) determined relationships between 2-levels of SMI depletion and OS. Mean SMI (cm2/m2) was 51.7 ± 9.9 (males) and 39.8 ± 7.1 (females). The overall and sex-specific population demonstrated an increased risk of mortality associated with decreasing SMI. Sex-specific SMI (cm2/m2) depletion thresholds for 2-levels of muscle depletion determined by optimal stratification for males and females, respectively (male: 45.2–37.5, and
ISSN:0261-5614
1532-1983
DOI:10.1016/j.clnu.2024.02.020