Prognostic Factors in Head and Neck Cancer: A Retrospective Cohort Study of 3052 Patients in Brazil.

Objective: Evaluate the sociodemographic, clinical, and lifestyle characteristics at head and neck squamous cell carcinoma (HNSCC) diagnosis and their impact on overall survival (OS) across different anatomical sites.

Materials And Methods: A retrospective cohort study (2011-2021) at Instituto do Câncer do Estado de São Paulo, involving 3052 HNSCC patients. Survival analyses utilized the Kaplan-Meier method and Cox proportional hazard ratios with 95% confidence intervals, incorporating significant variables from univariate analysis.

Prospective Cohort Study Identifies Medical Predictors of Treatment-Related Oral Toxicities in Oral and Oropharyngeal Cancer Patients.

The dental treatment of patients with oral cavity and oropharyngeal squamous cell carcinoma (OOPSCC) may be challenging for dentists. This study aimed to characterize systemic changes in patients with OOPSCC undergoing dental treatment prior to cancer therapy, with a specific focus on laboratory assessments. The primary objectives included identifying potential adverse events, such as infections or bleeding, resulting from dental procedures.