ArticleBrazilian oral research2026
Prognostic factors in pediatric head and neck rhabdomyosarcoma: a 30-year retrospective study in Brazil.
Article in Brazilian oral research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study aimed to evaluate the survival outcomes of pediatric patients with head and neck (HN) rhabdomyosarcoma (RMS) treated at a reference center in Brazil, comparing them with those of patients with non-head and neck (NHN) RMS. Additionally, it sought to identify the clinical-pathological variables, histological subtypes, and antineoplastic therapy regimens that significantly influence patient prognosis. The study included RMS patients treated between 1990 and 2022. Statistical analyses comprised t-tests, chi-square tests, Kaplan-Meier survival analysis, and Cox regression for overall survival (OS), disease-free survival (DFS), and event-free survival (EFS). A total of 64 patients (60.9% male) were included, with head and neck tumors being the most common presentation. Prognostic factors associated with OS included age ≥ 10 years, intermediate-risk classification, tumor relapse, and surgery. DFS was significantly influenced by age ≥10 years and high-risk classification, while EFS was associated with lesion size, histological subtype, and radiotherapy. In conclusion, anatomical site was not a significant prognostic factor. Age and risk classification significantly influenced OS and DFS, while histological subtype emerged as an independent factor for EFS. This study, conducted at a reference center in Latin America with a 30-year history of care, provides clinically relevant insights by identifying specific prognostic factors for RMS in Brazilian pediatric patients. These findings enable comparisons with international data and contribute to planning health interventions.
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