Sunday, October 31, 2021

The association of pretreatment low skeletal muscle mass with chemotherapy dose‐limiting toxicity in patients with head and neck cancer undergoing primary chemoradiotherapy with high‐dose cisplatin

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Abstract

Background

Low skeletal muscle mass (SMM) is an adverse prognostic factor for chemotherapy dose-limiting toxicity (CDLT). In patients with locally advanced head and neck squamous cell carcinoma (HNSCC) undergoing chemoradiotherapy (CRT), low SMM is a predictor for CDLT. We aimed to validate these findings.

Methods

Consecutive LA-HNSCC patients treated with primary CRT with high-dose cisplatin were retrospectively included. SMM was measured on pre-treatment CT-imaging. A cumulative cisplatin dose below 200 mg/m2 was defined as CDLT.

Results

One hundred and fifty three patients were included; 37 (24.2%) experienced CDLT, and 84 had low SMM (54.9%). Patients with low SMM experienced more CDLT than patients with normal SMM (35.7% vs. 10.1%, p < 0.01). Low SMM (OR 3.99 [95% CI 1.56–10.23], p = 0.01) and an eGFR of 60–70 ml/min (OR 5.40 [95% CI 1.57–18.65], p < 0.01) were predictors for CDLT.

Conclusion

Pre-treatment low SMM is associated with CDLT in LA-HNSCC patients treated with primary CRT. Routine SMM assessment may allow for CDLT risk assessment and treatment optimization.

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