The Role of Tumor Debulking Surgery in Improving Survival of Patients with Head and Neck Cancer: A Systematic Review.

Background/Objectives: Data on the value of tumor debulking surgery are scarce. We aimed to examine whether tumor debulking surgery followed by non-surgical treatment (cases) improves survival compared to non-surgical treatment alone (controls) in patients with head and neck cancer (HNC). Methods: We performed a systematic review of studies published in the databases PubMed, Scopus and Cochrane Central Register of Controlled Trials up to 10 December 2024. Studies evaluating tumor debulking surgery followed by non-surgical treatment and reporting survival (local recurrence, disease-free survival or overall survival) in subjects with HNC were included; case reports were excluded. We assessed the quality of observational studies with the Newcastle-Ottawa Scale. Results: Among 11 retrospective small studies, three case-control studies (one of high quality, i.e., 7/9, and two of moderate quality, i.e., 6/9 and 5/9) suggested longer survival in 72 cases with predominantly squamous cell carcinoma (SCC) than in 40 controls with predominantly SCC. However, these survival benefits cannot be attributed solely to tumor debulking surgery, as confounding by indication is the most likely explanation. In supraglottic laryngeal SCC, one study reported a local recurrence-free survival rate and overall survival of 80% and 88%, respectively, in 25 cases compared with 86% and 77%, respectively, in 24 controls. In sarcomas, local recurrence-free survival was 25%, 65% and 100% for unknown resection margins, wide local excision and radical excision, respectively. Conclusions: The heterogeneous data indicate the need for higher-quality research. It would be interesting to investigate whether an attempt to surgically debulk paranasal sinus tumors while preserving adjacent vital organs (e.g., the orbit and/or brain) should be incorporated into the treatment strategy for patients with extended paranasal sinus squamous cell carcinoma. Tumor debulking surgery did not improve survival in supraglottic laryngeal SCC or head and neck soft tissue sarcomas.