Prospective study on stereotactic body radiotherapy for small pancreatic neuroendocrine tumors: tolerance and effectiveness analysis.

INTRODUCTION: Surgery is the standard treatment for pancreatic neuroendocrine tumors (pNETs), obtaining favorable results but associating high morbidity and mortality rates. This study assesses stereotactic body radiation therapy (SBRT) as a radical approach for small (< 2 cm) nonfunctioning pNETs. MATERIALS AND METHODS: From January 2017 to June 2023, 20 patients with small pNETs underwent SBRT in an IRB-approved study. Endpoints included local control, tolerance, progression-free survival, and overall survival (OS). Diagnostic assessments comprised endoscopy, CT scans, OctreScan or PET-Dotatoc, abdominal MRI, and histological confirmatory samples. RESULTS: In a 30-month follow-up of 20 patients (median age 55.5 years), SBRT was well-tolerated with no grade > 2 toxicity. 40% showed morphological response, 55% remained stable. Metabolically, 50% achieved significant improvement. With a median OS of 41.5 months, all patients were alive without local or distant progression or need for surgical resection. CONCLUSION: SBRT is a feasible and well-tolerated approach for small neuroendocrine pancreatic tumors, demonstrating effective local control. Further investigations are vital for validation and extension of these findings.

Radioterapia paliativa pediátrica / Pediatric palliative radiotherapy

Introducción: La radioterapia es un recurso infrautilizado en los cuidados paliativos pediátricos; sin embargo, tiene utilidad para aliviar diversos síntomas al final de la vida. Pacientes y métodos: Se muestra un estudio retrospectivo de 30 pacientes pediátricos que han recibido radioterapia por motivos paliativos. El objetivo fue revisar si la radioterapia resultó efectiva. Resultados: La radioterapia fue útil para aliviar los síntomas, mostrando una respuesta global en el 85 % de los casos y presentando toxicidades leves. Las respuestas más pobres fueron en gliomas con alivio sintomático en el 56 % de los casos, mostrando toxicidades en el 89 % de los mismos. La necesidad de anestesia supuso un factor de riesgo para el desarrollo de toxicidades. Conclusiones: El uso de la radioterapia paliativa es beneficiosa y debe incluirse en el manejo multidisciplinar del niño en cuidados paliativos. (AU)

Introduction: Radiotherapy is an underutilized resource in pediatric palliative care; however, it has utility in relieving various symptoms at the end of life. Patients and methods: A retrospective study of 30 pediatric patients who received radiotherapy for palliative reasons is reported. The objective was to review whether radiotherapy was effective. Results: Radiotherapy was useful in relieving symptoms, showing an overall response in 85 % of cases and presenting mild toxicities. The poorest responses were found in gliomas, with symptomatic relief in 56 % of cases, showing toxicities in 89 % of cases. The need for anesthesia represented risk factor for the development of toxicities. Conclusions: The use of palliative radiotherapy is beneficial and should be included in the multidisciplinary management of children in palliative care. (AU)