Abstract
e23138 Background: Cachexia is a wasting syndrome that may affect HNSCC pts, contributing to their dismal prognosis. We aimed to study the frequency of cachexia in HNSCC survivors treated with CRT with curative intent. Methods: Cross-sectional study that included 120 consecutive pts from Jan/2014 to Feb/2017, over 18 y.o. and who were previously treated with definitive or adjuvant CRT for HNSCC (nasopharynx, oropharynx [OP], oral cavity [OC], hypopharynx and larynx [L]). Eligible pts were in regular follow-up for at least 2 years in the multidisciplinary team, with no evidence of disease. Medical history, body weight, height, mid-arm muscle circumference (MAMC) and muscle strength (MS, handgrip dynamometer) were measured, and laboratory tests (hemoglobin [Hb], albumin and C-reactive protein [CRP]) were obtained. Cachexia was diagnosed when there was any weight loss in the previous year, and at least 3 of the following: reduced grip muscle strength, fatigue, anorexia, low lean body mass, or laboratorial alterations (Hb < 12 g/dL, serum albumin < 3.2 g/dL or CRP > 5.0 mg/L). A subjective assessment of nutritional status was made based on the Patient-Generated Subjective Global Assessment (PG-SGA) in its short form. Results: Median age 59 y.o. (21-78), 88 male (73%). Most common primary sites were OP (42%), L (24%) and OC (19%). Median follow-up was 42 mo. (24-125). There was a predominance of locally advanced disease at diagnosis: 73% T3/T4 and 72% N+. The mean weight was 64.5 kg (±14.6) pre-CRT, 57.8 kg (±12.2) post-CRT (p 0.02) and 63 kg (±11.8) in the present evaluation (p NS). Dysphagia was a complaint in 88 pts (73%). Cachexia was diagnosed in 42 pts (35%). As expected, cachectic pts (CP) presented lower MAMC (25.1 vs. 27.2 cm, p 0.0002) and MS (24.3 vs. 29.5 kgf, p 0.004). Higher mean CRP (12.7 vs. 4.2 mg/L, p 0.0001) and lower Hb (13.1 vs.13.9 g/dL, p 0.01) were also seen in CP. The PG-SGA score was higher in CP (7.9 vs. 5.7, p 0.006). Conclusions: Cachexia was frequently diagnosed in HNSCC pts with NED after CRT in a long-term follow-up, without evident weight loss. More effective preventive and therapeutic strategies are warranted. Supported in part by FAPESP grant 2014/00172-9.
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