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https://www.readbyqxmd.com/read/29149496/predictive-factors-for-osteoradionecrosis-of-the-jaws-a-retrospective-study
#1
Hans P Sathasivam, Gareth R Davies, Nicholas M Boyd
BACKGROUND: Osteoradionecrosis of the jaw (ORNJ) is a well-recognized complication of radiotherapy. The purpose of this study was to assess predictive factors for the development of ORNJ. METHODS: A retrospective study of 325 patients with head and neck squamous cell carcinoma (HNSCC) treated at one institution between January 1, 1999, and December 31, 2008, was conducted. Outcome measure was the presence/absence of ORNJ. Time to event was recorded and Cox proportional hazard regression analysis was used to determine statistically significant predictive factors...
November 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/29149224/correction-evaluation-of-acute-toxicity-and-early-clinical-outcome-in-head-and-neck-cancers-treated-with-conventional-radiotherapy-and-simultaneous-integrated-boost-arc-radiotherapy
#2
Amit Bahl, Arun S Oinam, Satinder Kaur, Roshan Verma, Arun Elangovan, Sudhir Bhandari, Jaimanti Bakshi, Naresh Panda, Sushmita Ghoshal
[This corrects the article DOI: 10.14740/wjon1049w.].
October 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147446/evaluation-of-acute-toxicity-and-early-clinical-outcome-in-head-and-neck-cancers-treated-with-conventional-radiotherapy-and-simultaneous-integrated-boost-arc-radiotherapy
#3
Amit Bahl, Arun S Oinam, Satinder Kaur, Roshan Verma, Arun Elangovan, Sudhir Bhandari, Jaimanti Bakshi, Naresh Panda, Sushmita Ghoshal
Background: Chemoradiotherapy plays an important role in management of locally advanced head and neck cancers. This retrospective analysis was done to evaluate and compare acute toxicity profiles and early clinical outcomes in patients treated with conventional and arc techniques. Methods: Fifty-five patients of head and neck cancers were evaluated. Thirty patients received conventional radiotherapy with 6 MV or cobalt 60 and 25 patients were treated with simultaneous integrated boost-volumetric modulated arc radiotherapy (SIB-VMAT) with dose prescription of 66 - 70 Gy...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147434/acute-radiation-induced-changes-in-sprague-dawley-rat-submandibular-glands-a-histomorphometric-analysis
#4
Manu Krishnan, Aatish Tennavan, Seema Saraswathy, Tarun Sekhri, Ajay Kumar Singh, Velu Nair
Background: Radiation-induced xerostomia is a distressing clinical condition that starts appearing from the initial stages of radiotherapy in head and neck cancer patients. Though submandibular glands contribute to maximum of the "resting salivary" secretions, most of the acute xerostomia experiments so far reported have been on animal parotid glands. Therefore, we assessed and quantified the histologic changes in submandibular glands of Sprague-Dawley (SD) rats using histomorphometry, 24 hours after radiation...
April 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29143328/efficacy-and-safety-of-anti-egfr-agents-administered-concurrently-with-standard-therapies-for-patients-with-head-and-neck-squamous-cell-carcinoma-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#5
REVIEW
Tian Yunhong, Lin Jie, Tian Yunming, Zhang Guoqian, Zeng Xing, Zheng Ronghui, Zhang Weijun, Yuan Yawei
Agents targeting epidermal growth factor receptor (EGFR) are used to treat head and neck squamous cell carcinoma (HNSCC); however, their efficacy and safety is poorly understood. Here we evaluated the efficacy and safety of anti-EGFR agents administered concurrently with standard therapies for HNSCC. Randomized controlled trials that evaluated addition of EGFR targeted therapy versus standard therapy alone were included. The primary outcome was overall survival (OS). Secondary outcomes were progression-free survival (PFS), overall response rate (ORR), locoregional control, and severe adverse events (SAEs, grade ≥ 3)...
November 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29142463/management-of-extramedullary-plasmacytoma-role-of-radiotherapy-and-prognostic-factor-analysis-in-55-patients
#6
Ge Wen, Weihu Wang, Yujing Zhang, Shaoqing Niu, Qiwen Li, Yexiong Li
Objective: To investigate potential prognostic factors affecting patient outcomes and to evaluate the optimal methods and effects of radiotherapy (RT) in the management of extramedullary plasmacytoma (EMP). Methods: Data from 55 patients with EMP between November 1999 and August 2015 were collected. The median age was 51 (range, 22-77) years. The median tumor size was 3.5 (range, 1.0-15.0) cm. The median applied dose was 50.0 (range, 30.0-70.0) Gy. Thirty-nine patients (70...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29135311/atm-bcl2-and-tgf%C3%AE-gene-polymorphisms-as-radiotherapy-outcome-biomarkers-in-head-and-neck-squamous-cell-carcinoma-patients
#7
Lidiane P Agostini, Elaine Stur, Fernanda M Garcia, Diego P Ventorim, Raquel S Dos Reis, Raquel S Dettogni, Eldamária V W Dos Santos, Gabriela T Peterle, Lucas L Maia, Suzanny O Mendes, Marcos B de Carvalho, Eloiza H Tajara, Flavia de Paula, Marcelo Dos Santos, Adriana M A da Silva, Iúri Drumond Louro
AIMS: Polymorphisms in cell cycle genes are considered prognostic and radiosensitivity markers in patients with head and neck squamous cell carcinoma. Therefore, we have aimed to investigate the relationship of ATM 5557G>A, ATM IVS62 + 60G>A, TP53 215G>C, BCL2-938C>A, TGFβ-509C>T, and TGFβ 29C>T with radiotherapy response. MATERIALS AND METHODS: Genotyping was performed by polymerase chain reaction followed by restriction fragment length polymorphism in 210 patients with oral cavity/oropharynx carcinoma and 101 patients with larynx tumors...
November 14, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/29134169/age-and-tumor-volume-predict-growth-of-carotid-and-vagal-body-paragangliomas
#8
Berdine L Heesterman, Lisa M H de Pont, Berit M Verbist, Andel G L van der Mey, Eleonora P M Corssmit, Frederik J Hes, Peter Paul G van Benthem, Jeroen C Jansen
Objective  Treatment for head and neck paragangliomas (HNGPL) can be more harmful than the disease. After diagnosis, an initial period of surveillance is often indicated, and surgery or radiotherapy is reserved for progressive disease. With the aim to optimize this "wait and scan" strategy, we studied growth and possible predictors. Design  A retrospective cohort study was conducted. Setting  This study was conducted at a tertiary referral center for patients with HNGPL. Methods  Tumor volume was estimated for 184 SDHD -related carotid and vagal body paragangliomas using sequential magnetic resonance imaging...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29125035/cone-beam-computed-tomography-cbct-for-adaptive-image-guided-head-and-neck-radiation-therapy
#9
Christian A Hvid, Ulrik V Elstrøm, Kenneth Jensen, Cai Grau
BACKGROUND: Adaptive (ART) and image guided radiation therapy (IGRT) can improve target coverage and reduce unnecessary irradiation of organs at risk (OAR). The purpose of this study is to report the results of using mid-course imaging and a novel workflow with cone-beam computed tomography (CBCT) surveillance of dose to OAR to trigger adaptive replanning in head and neck radiotherapy. MATERIAL AND METHODS: Impact of radiation therapist (RTT) managed match protocol and mid-course imaging was assessed in two cohorts of consecutive patients receiving RT to the head and neck region, using computed tomography (CT) and CBCT-based dose verification respectively...
November 10, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29123967/ionizing-radiation-sensitizes-tumors-to-pd-l1-immune-checkpoint-blockade-in-orthotopic-murine-head-and-neck-squamous-cell-carcinoma
#10
Ayman Oweida, Shelby Lennon, Dylan Calame, Sean Korpela, Shilpa Bhatia, Jaspreet Sharma, Caleb Graham, David Binder, Natalie Serkova, David Raben, Lynn Heasley, Eric Clambey, Raphael Nemenoff, Sana D Karam
Immunotherapy clinical trials targeting the programmed-death ligand axis (PD-1/PD-L1) show that most head and neck squamous cell carcinoma (HNSCC) patients are resistant to PD-1/PD-L1 inhibition. We investigated whether local radiation to the tumor can transform the immune landscape and render poorly immunogenic HNSCC tumors sensitive to PD-L1 inhibition. We used the first novel orthotopic model of HNSCC with genetically distinct murine cell lines. Tumors were resistant to PD-L1 checkpoint blockade, harbored minimal PD-L1 expression and tumor infiltrating lymphocytes at baseline, and were resistant to radiotherapy...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29122486/trapezius-flaps-for-reconstruction-of-head-and-neck-defects-following-oncological-resection-a-systematic-review
#11
Conor M Sugrue, Grainne Rooney, Ryan M Sugrue
OBJECTIVE: Head and neck (H&N) reconstruction after cancer resection is challenging. Myocutaneous trapezius flaps provide an alternative reconstruction for patients not suitable for microvascular free tissue transfer. METHODS: A systematic review was performed on studies involving trapezius flaps for H&N reconstruction post oncological resection between the years 1985-2015. Data extracted included patient numbers and demographics, operative technique and complications...
October 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29119677/minimal-mask-immobilization-with-optical-surface-guidance-for-head-and-neck-radiotherapy
#12
Bo Zhao, Genevieve Maquilan, Steve Jiang, David L Schwartz
PURPOSE: Full face and neck thermoplastic masks provide standard-of-care immobilization for patients receiving H&N IMRT. However, these masks are uncomfortable and increase skin dose. The purpose of this pilot trial was to investigate the feasibility and setup accuracy of minimal face and neck mask immobilization with optical surface guidance. METHODS: Twenty patients enrolled onto this IRB-approved protocol. Patients were immobilized with masks securing only forehead and chin...
November 9, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29115716/long-term-results-in-children-with-head-and-neck-rhabdomyosarcoma-a-report-from-the-italian-soft-tissue-sarcoma-committee
#13
Maria Carmen Affinita, Andrea Ferrari, Giuseppe Maria Milano, Giovanni Scarzello, Francesco De Leonardis, Luca Coccoli, Roberta Pericoli, Eleonora Basso, Ilaria Zanetti, Angela Scagnellato, Gianni Bisogno
BACKGROUND: Rhabdomyosarcoma (RMS) occurring at nonparameningeal head and neck (NPM-HN) sites carries a better prognosis than parameningeal RMS and some other sites. We analyzed the treatments administered and results obtained in patients with localized NPM-HN RMS, included in the protocols coordinated by the Italian Soft Tissue Sarcoma Committee (STSC), in an effort to identify prognostic factors that could facilitate the tailoring of treatment. METHODS: Sixty-six patients up to 18 years of age with previously untreated, localized NPM-HN RMS were prospectively registered in three consecutive protocols: RMS79, RMS88, and RMS96...
November 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29114887/cough-strength-and-expiratory-force-in-aspirating-and-nonaspirating-postradiation-head-and-neck-cancer-survivors
#14
Katherine A Hutcheson, Martha P Barrow, Carla L Warneke, Yiqun Wang, George Eapen, Stephen Y Lai, Denise A Barringer, Emily K Plowman, Jan S Lewin
OBJECTIVE: Expiratory functions that clear aspiration from the airway are compromised in patients with neurogenic dysphagia for whom cough and expiratory force may be impaired by the primary disease process. The relationship between expiratory function, cough, and aspiration is less clear in head and neck cancer (HNC) survivors for whom the disease process does not directly impact the lower respiratory system. Our objective was to compare mechanisms of airway clearance (expiratory force and cough) with aspiration status in postradiated HNC survivors...
November 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29111172/nutritional-counseling-with-or-without-systematic-use-of-oral-nutritional-supplements-in-head-and-neck-cancer-patients-undergoing-radiotherapy
#15
Emanuele Cereda, Silvia Cappello, Sara Colombo, Catherine Klersy, Ilaria Imarisio, Annalisa Turri, Marilisa Caraccia, Valeria Borioli, Teresa Monaco, Marco Benazzo, Paolo Pedrazzoli, Franco Corbella, Riccardo Caccialanza
BACKGROUND: To evaluate the benefit of oral nutritional supplements (ONS) in addition to nutritional counseling in head and neck cancer (HNC) patients undergoing radiotherapy (RT). METHODS: In a single-center, randomized, pragmatic, parallel-group controlled trial (ClinicalTrials.gov: NCT02055833; February 2014-August 2016), 159 newly diagnosed HNC patients suitable for to RT regardless of previous surgery and induction chemotherapy were randomly assigned to nutritional counseling in combination with ONS (N = 78) or without ONS (N = 81) from the start of RT and continuing for up to 3 months after its end...
October 27, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29110510/%C3%AE-irradiation-from-radiotherapy-improves-the-virulence-potential-of-candida-tropicalis
#16
Eliane M da Silva, Brenda Kischkel, Cristiane S Shinobu-Mesquita, Patrícia S Bonfim-Mendonça, Elaine Sb Mansano, Marcos A da Silva, Jéssica F Barbosa, Adriana Fiorini, Luzmarina Hernandes, Marcia C Furlaneto, Terezinha Ie Svidzinski
AIM: To evaluate if radiation used in radiotherapy can cause changes in the virulence potential of Candida tropicalis ATCC 750. MATERIALS & METHODS: C. tropicalis was exposed in vitro to identical dose and scheme of irradiation would be used in patients with head and neck cancer. Some virulence parameters were analyzed before and after irradiation. RESULTS: Colony morphologies were irreversibly affected by irradiation. Increase in growth rate, filamentation, adhesion on cell lines and phagocytosis process were also observed...
November 7, 2017: Future Microbiology
https://www.readbyqxmd.com/read/29105949/a-model-for-predicting-the-dose-to-the-parotid-glands-based-on-their-relative-overlapping-with-planning-target-volumes-during-helical-radiotherapy
#17
Cheryl H Millunchick, Heming Zhen, Gage Redler, Yixiang Liao, Julius V Turian
The sparing of the parotid glands in the treatment of head and neck cancers is of clinical relevance as high doses to the salivary glands may result in xerostomia. Xerostomia is a major cause of decreased quality of life for head and neck patients. This paper explores the relationship between the overlap of the target volumes and their expansions with the parotid glands for helical delivery plans and their ability to be spared. Various overlapping volumes were examined, and an overlap with a high statistical relevance was found...
November 6, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29103743/elderly-patients-affected-by-head-and-neck-squamous-cell-carcinoma-unfit-for-standard-curative-treatment-is-de-intensified-hypofractionated-radiotherapy-a-feasible-strategy
#18
Pierluigi Bonomo, Isacco Desideri, Mauro Loi, Monica Lo Russo, Emanuela Olmetto, Virginia Maragna, Giulio Francolini, Camilla Delli Paoli, Roberta Grassi, Donato Pezzulla, Daniela Greto, Icro Meattini, Lorenzo Livi
OBJECTIVES: The aim of our work was to report on the clinical outcome of a moderately hyprofractionated radiotherapy regimen in elderly patients affected by head and neck squamous cell carcinoma (HNSCC). MATERIAL AND METHODS: HNSCC aged ≥65 deemed unsuitable for curatively-intended concurrent chemo-radiotherapy or high-dose radiotherapy by clinical judgement were further evaluated with the Geriatric 8 (G8) questionnaire and Charlson comorbidity index (CCI). In case of a G8 score ≤14, a de-intensified radiation schedule of 40 Gy delivered in 16 fractions was prescribed...
November 2017: Oral Oncology
https://www.readbyqxmd.com/read/29103739/long-term-treatment-outcomes-and-prognosis-of-mucosal-melanoma-of-the-head-and-neck-161-cases-from-a-single-institution
#19
Shiran Sun, Xiaodong Huang, Li Gao, Ye Zhang, Jingwei Luo, Shiping Zhang, Kai Wang, Yuan Qu, Runye Wu, Qingfeng Liu, Jianping Xiao, Guozhen Xu, Junlin Yi
OBJECTIVES: This study aimed to evaluate the clinical features, treatment outcomes and prognostic factors of mucosal melanoma of the head and neck (MMHN) in patients who were treated at our institution. MATERIALS AND METHODS: Between Jan. 1981 and Oct. 2015, 161 patients with non-metastatic MMHN were treated at our institution. The patients' clinical characteristics, treatment modalities, outcomes, prognostic factors, and failure patterns were retrospectively analysed...
November 2017: Oral Oncology
https://www.readbyqxmd.com/read/29103566/osteoradionecrosis-a-review-of-pathophysiology-prevention-and-pharmacologic-management-using-pentoxifylline-%C3%AE-tocopherol-and-clodronate
#20
REVIEW
Jose Antonio Rivero, Omar Shamji, Antonia Kolokythas
A significant complication of radiotherapy to the head and neck for cancer treatment is osteoradionecrosis (ORN) of the jaws. The management of ORN can be complex and often requires a multimodality approach. Nonsurgical treatments with or without adjunct measures and surgical interventions have all been employed on the basis of staging of the disease process. New theories on the pathophysiology of ORN have led to the identification of novel treatment modalities, including pharmacologic management using pentoxifylline, tocopherol, and clodronate (together referred to as "Pentoclo")...
November 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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