Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?

Undifferentiated carcinoma of the nasopharynx (NPC) is a rare disease, which usually occurs in the Asian population. Due to its anatomic location, it is characterised by rich lymph node drainage and has a high incidence of cervical node metastasis. However, cervical nodal metastasis commonly involve...

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Main Authors: Francesca De Felice, Alessandro Vai, Anna Maria Camarda, Nicola Alessandro Iacovelli, Ester Orlandi
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/12/3297
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author Francesca De Felice
Alessandro Vai
Anna Maria Camarda
Nicola Alessandro Iacovelli
Ester Orlandi
author_facet Francesca De Felice
Alessandro Vai
Anna Maria Camarda
Nicola Alessandro Iacovelli
Ester Orlandi
author_sort Francesca De Felice
collection DOAJ
description Undifferentiated carcinoma of the nasopharynx (NPC) is a rare disease, which usually occurs in the Asian population. Due to its anatomic location, it is characterised by rich lymph node drainage and has a high incidence of cervical node metastasis. However, cervical nodal metastasis commonly involves retropharyngeal nodes and level II nodes, followed by level III nodes. In recent years, innovations in terms of systemic treatments and radiotherapy techniques have improved oncological outcome and treatment-related toxicities. Therefore, there is a growing interest in de-intensification strategies of reducing volumes and treatment-related side effects, especially in patients with NPC with N0–N1-stage disease. Proton therapy could represent a valid alternative to Intensity Modulated Radiotherapy (IMRT) in the management of NPC in this setting. With this Commentary, we aim to explore the feasibility of Intensity Modulated Proton Therapy (IMPT) in upper-neck irradiation of NPC N1-stage disease. We selected an NPC patient with N1 disease and compared the original IMRT plan with the IMPT plan in terms of dosimetric parameters. IMPT offers a minimal dosimetric advantage over IMRT in the bilateral lower-neck sparing. Clinical trials are needed to evaluate the significance of these proposed suggestions and their applicability in non-endemic areas.
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spelling doaj.art-7d378ab4bfed4b7199565737f38fa72b2023-11-23T17:13:39ZengMDPI AGJournal of Clinical Medicine2077-03832022-06-011112329710.3390/jcm11123297Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?Francesca De Felice0Alessandro Vai1Anna Maria Camarda2Nicola Alessandro Iacovelli3Ester Orlandi4Radiation Oncology, Policlinico Umberto I, Department of Radiological, Oncological and Pathological Sciences, “Sapienza” University of Rome, Viale Regina Elena 326, 00161 Rome, ItalyRadiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Strada Campeggi 53, 27100 Pavia, ItalyRadiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Strada Campeggi 53, 27100 Pavia, ItalyRadiation Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via G. Venezian 1, 20133 Milan, ItalyRadiation Oncology, Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Strada Campeggi 53, 27100 Pavia, ItalyUndifferentiated carcinoma of the nasopharynx (NPC) is a rare disease, which usually occurs in the Asian population. Due to its anatomic location, it is characterised by rich lymph node drainage and has a high incidence of cervical node metastasis. However, cervical nodal metastasis commonly involves retropharyngeal nodes and level II nodes, followed by level III nodes. In recent years, innovations in terms of systemic treatments and radiotherapy techniques have improved oncological outcome and treatment-related toxicities. Therefore, there is a growing interest in de-intensification strategies of reducing volumes and treatment-related side effects, especially in patients with NPC with N0–N1-stage disease. Proton therapy could represent a valid alternative to Intensity Modulated Radiotherapy (IMRT) in the management of NPC in this setting. With this Commentary, we aim to explore the feasibility of Intensity Modulated Proton Therapy (IMPT) in upper-neck irradiation of NPC N1-stage disease. We selected an NPC patient with N1 disease and compared the original IMRT plan with the IMPT plan in terms of dosimetric parameters. IMPT offers a minimal dosimetric advantage over IMRT in the bilateral lower-neck sparing. Clinical trials are needed to evaluate the significance of these proposed suggestions and their applicability in non-endemic areas.https://www.mdpi.com/2077-0383/11/12/3297protonphotonIMRThead neck cancernasopharyngeal carcinomaprophylactic neck irradiation
spellingShingle Francesca De Felice
Alessandro Vai
Anna Maria Camarda
Nicola Alessandro Iacovelli
Ester Orlandi
Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
Journal of Clinical Medicine
proton
photon
IMRT
head neck cancer
nasopharyngeal carcinoma
prophylactic neck irradiation
title Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
title_full Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
title_fullStr Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
title_full_unstemmed Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
title_short Lower-Neck Sparing Using Proton Therapy in Patients with Uninvolved Neck Nasopharyngeal Carcinoma: Is It Safe?
title_sort lower neck sparing using proton therapy in patients with uninvolved neck nasopharyngeal carcinoma is it safe
topic proton
photon
IMRT
head neck cancer
nasopharyngeal carcinoma
prophylactic neck irradiation
url https://www.mdpi.com/2077-0383/11/12/3297
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AT annamariacamarda lowernecksparingusingprotontherapyinpatientswithuninvolvednecknasopharyngealcarcinomaisitsafe
AT nicolaalessandroiacovelli lowernecksparingusingprotontherapyinpatientswithuninvolvednecknasopharyngealcarcinomaisitsafe
AT esterorlandi lowernecksparingusingprotontherapyinpatientswithuninvolvednecknasopharyngealcarcinomaisitsafe