PET/CT follow-up may confer survival benefit in head and neck cancer
Source: www.cancertherapyadvisor.com Author: Andrea S. Blevins Primeau, PhD, MBA Annual follow-up with 18FDG-PET/CT can improve survival, as compared to conventional follow-up, in patients with head and neck cancer, according to study results published in JAMA Network Open. Researchers found that this survival benefit was driven by patients with advanced disease and those with oropharyngeal tumors. This study included 782 patients with head and neck squamous cell carcinoma (HNSCC) who were treated with curative intent during 2006-2019. Their median age was 61 (range, 32-95) years, and 82.1% of patients were men. The most common tumor site was the oropharynx (35.3%), followed by the larynx (24.8%), oral cavity (21.6%), and hypopharynx (15.5%). Most patients had stage IV disease (55.2%), followed by stage I (17.8%), stage III (15.5%), and stage II (11.3%). Exactly half of patients underwent surgery, and half received radiotherapy. The patients underwent 18FDG-PET/CT follow-up (n=497) or conventional follow-up (n=285). In both groups, follow-up included clinical examination every 2 months for the first year, every 3 months during year 2, and every 4 months during year 3, as well as imaging at 12 months, 24 months, and 36 months. Imaging consisted of chest CT in the conventional group and 18FDG-PET/CT in the other group. Over 3 years of follow-up, 111 relapses occurred, of which 62 (55.9%) were detected by 18FDG-PET/CT in patients who were asymptomatic. The subclinical recurrence detection rate was 12.4% with 18FDG-PET/CT. Of all subclinical recurrences, 18FDG-PET/CT revealed 58.1% at the 12-month follow-up, 30.6% at 24 months, and 11.3% [...]