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https://www.readbyqxmd.com/read/27920642/recurrent-complete-pharyngo-oesophageal-stricture-treated-by-multidisciplinary-anterograde-retrograde-endoscopic-dilation
#1
Paulo Castro Soares, Salim Bouayed, Pavel Dulguerov, Jean-Louis Frossard
Complete pharyngo-oesophageal stricture (PES) after radiotherapy for head and neck cancer is a relatively rare and difficult complication to manage. Historically this condition has been treated surgically, but endoscopic approaches are now available. We present a 61-year-old man with an epidermoid carcinoma of the supraglottic stage and a micro-invasive epidermoid carcinoma of the oropharynx treated surgically and subsequently by adjuvant radiotherapy. Eight months after the end of the radiotherapy, a complete PES was diagnosed and treated with a combined anterograde-retrograde endoscopic dilation (CARD)...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920611/products-based-on-olive-oil-betaine-and-xylitol-in-the-post-radiotherapy-xerostomia
#2
Margarita Martín, Alicia Marín, Mario López, Olga Liñán, Felipe Alvarenga, David Büchser, Laura Cerezo
AIM: The objective of this study was determining if the use of products based in olive oil, betaine and xylitol are efficacious to decrease the impact of the dry mouth in the quality of life of the patients with xerostomia due to radiotherapy treatment. BACKGROUND: Following therapeutic irradiation of the head and neck, patients with profound xerostomia have complaints associated with oral dryness, speech, and taste. There is no strong evidence that any topical therapy is effective for relieving the symptom of dry mouth...
January 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/27919621/a-comparative-study-of-standard-intensity-modulated-radiotherapy-and-rapidarc-planning-techniques-for-ipsilateral-and-bilateral-head-and-neck-irradiation
#3
Jennifer Pursley, Antonio L Damato, Maria A Czerminska, Danielle N Margalit, David J Sher, Roy B Tishler
The purpose of this study was to investigate class solutions using RapidArc volumetric-modulated arc therapy (VMAT) planning for ipsilateral and bilateral head and neck (H&N) irradiation, and to compare dosimetric results with intensity-modulated radiotherapy (IMRT) plans. A total of 14 patients who received ipsilateral and 10 patients who received bilateral head and neck irradiation were retrospectively replanned with several volumetric-modulated arc therapy techniques. For ipsilateral neck irradiation, the volumetric-modulated arc therapy techniques included two 360° arcs, two 360° arcs with avoidance sectors around the contralateral parotid, two 260° or 270° arcs, and two 210° arcs...
December 2, 2016: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/27919336/tissue-reactions-to-ionizing-radiation-oral-mucosa
#4
Sylvia Gruber, Wolfgang Dörr
Radiotherapy is one of the most effective treatment strategies for solid malignancies, including head-and-neck tumors (HNT). Oral mucositis is the most frequent, often dose-limiting early adverse event of radio(chemo)therapy for HNT. The oral mucosal response is - like that of typical turnover tissues - based on radiation-induced impairment of epithelial proliferation and cell production, in face of ongoing physiological cell differentiation and cell loss, consequently resulting in hypoplasia and eventually mucosal ulceration...
October 2016: Mutation Research
https://www.readbyqxmd.com/read/27918781/the-role-of-adjuvant-chemotherapy-in-surgically-managed-p16-positive-oropharyngeal-squamous-cell-carcinoma
#5
S Andrew Skillington, Dorina Kallogjeri, James S Lewis, Jay F Piccirillo
Importance: Human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) has a favorable prognosis, and p16 immunohistochemistry is a surrogate marker of high-risk HPV infection and strong prognosticator. Given this favorable prognosis, treatment de-escalation for p16-positive OPSCC is now being considered with the goal of decreasing treatment-associated morbidity without compromising tumor control. The role of adjuvant chemotherapy in this setting is becoming increasingly unclear...
December 1, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27918737/influence-of-bethanechol-on-salivary-parameters-in-irradiated-patients
#6
C Carrara-Cotomacio, L Campos, A Simões, G Chagas-Jaguar, E-M Crosato, F Abreu-Alves
BACKGROUND: Some studies have shown evidence that the prophylactic use of bethanechol chloride (BC) may be useful in preventing the incidence and/or severity of xerostomia (XT). However, the indication of BC in irradiated patients with XT needs to be better characterized. The study aimed to evaluate the influence of BC on XT, salivary flow rate, and salivary composition in patients previously submitted to head and neck radiotherapy. MATERIAL AND METHODS: Forty five irradiated patients complaining of XT used 50 mg/day of BC for 3 months, and the salivary parameters were evaluated in 4 Phases (Before BC therapy, after one month of BC, 2 months of BC, and 3 months of BC)...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27918595/impact-of-sonic-hedgehog-pathway-expression-on-outcome-in-hpv-negative-head-and-neck-carcinoma-patients-after-surgery-and-adjuvant-radiotherapy
#7
Elisabeth Enzenhofer, Thomas Parzefall, Georg Haymerle, Sven Schneider, Lorenz Kadletz, Gregor Heiduschka, Johannes Pammer, Felicitas Oberndorfer, Fritz Wrba, Benjamin Loader, Matthäus Christoph Grasl, Christos Perisanidis, Boban M Erovic
INTRODUCTION: HPV positive patients suffering from head and neck cancer benefit from intensified radiotherapy when applied as a primary as well as an adjuvant treatment strategy. However, HPV negative patients treated with surgery and adjuvant radiotherapy lack validated prognostic biomarkers. It is therefore important to define prognostic biomarkers in this particular patient population. Especially, ´high-risk groups´ need to be defined in order to adapt treatment protocols. Since dysregulation of the sonic hedgehog pathway plays an important role in carcinogenesis, we aimed to assess whether members of the sonic hedgehog-signaling pathway may act as prognostic factors in patients with HPV negative head and neck squamous cell carcinoma...
2016: PloS One
https://www.readbyqxmd.com/read/27916399/fat-grafting-is-a-feasible-technique-for-the-sequelae-of-head-and-neck-cancer-treatment
#8
J Gutiérrez Santamaría, J Masiá Gridilla, J Pamias Romero, J Giralt López-de-Sagredo, M S Bescós Atín
OBJECTIVE: The fatty tissue regenerative properties have already been used to correct secondary scars (mastectomy, HIV lipodystrophy), resulting in improved elasticity and tissue quality. However there has been limited experience in treating the sequela of head and neck cancer treatment using fat tissue grafting. The objective of this study was to perform a preliminary evaluation of the injection of autologous fat (IAF) technique, for the sequelae treatment in head and neck cancer patients...
November 1, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27909635/secondary-neuroendocrine-carcinoma-following-high-dose-radiotherapy-for-head-and-neck-cancer-report-of-two-cases
#9
Amandeep S Taggar, Roderick Simpson, Desiree Hao, Marc Webster, Moosa Khalil, John Lysack, David Skarsgard
Patients treated with radiation have an increased risk of developing second cancers, of which carcinomas, sarcomas, and hematological malignancies have most commonly been reported. Neuroendocrine carcinomas (NEC) are rarely reported in patients previously treated with radiation. Two patients, who had successfully undergone chemoradiotherapy for head and neck cancers at our institution, developed secondary NEC within the radiation field more than five years after the treatment. Both patients underwent curative-intent treatment of secondary malignancies, one with chemotherapy, radiation and surgery (Case 1) and the other with chemotherapy and surgery (Case 2)...
October 25, 2016: Curēus
https://www.readbyqxmd.com/read/27906459/integrative-genomic-analysis-identifies-ancestry-related-expression-quantitative-trait-loci-on-dna-polymerase-%C3%AE-and-supports-the-association-of-genetic-ancestry-with-survival-disparities-in-head-and-neck-squamous-cell-carcinoma
#10
Meganathan P Ramakodi, Karthik Devarajan, Elizabeth Blackman, Denise Gibbs, Danièle Luce, Jacqueline Deloumeaux, Suzy Duflo, Jeffrey C Liu, Ranee Mehra, Rob J Kulathinal, Camille C Ragin
BACKGROUND: African Americans with head and neck squamous cell carcinoma (HNSCC) have a lower survival rate than whites. This study investigated the functional importance of ancestry-informative single-nucleotide polymorphisms (SNPs) in HNSCC and also examined the effect of functionally important genetic elements on racial disparities in HNSCC survival. METHODS: Ancestry-informative SNPs, RNA sequencing, methylation, and copy number variation data for 316 oral cavity and laryngeal cancer patients were analyzed across 178 DNA repair genes...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27905164/correlative-study-of-dose-to-thyroid-and-incidence-of-subsequent-dysfunction-after-head-and-neck-radiation
#11
Stella Ling, Aashish D Bhatt, Nicole V Brown, Phuong Nguyen, Jennifer A Sipos, Arnab Chakravarti, Yi Rong
BACKGROUND: Thyroid dysfunction is common after radiotherapy (RT) for patients with head and neck cancers. We attempted to discover RT dose parameters that correspond with RT-induced thyroid dysfunction. METHODS: Records of 102 patients who received RT from 2008 to 2010 were reviewed with respect to thyroid function. Abnormalities were grouped in 2 ways: (1) none, transient, or permanent; and (2) overt or subclinical. RESULTS: At median follow-up of 33...
December 1, 2016: Head & Neck
https://www.readbyqxmd.com/read/27903972/gdf15-contributes-to-radioresistance-and-cancer-stemness-of-head-and-neck-cancer-by-regulating-cellular-reactive-oxygen-species-via-a-smad-associated-signaling-pathway
#12
Yan-Liang Li, Joseph T Chang, Li-Yu Lee, Kang-Hsing Fan, Ya-Ching Lu, Yi-Chen Li, Chang-Hsu Chiang, Guo-Rung You, Hsin-Ying Chen, Ann-Joy Cheng
Radiotherapy is an integral part for the treatment of head and neck cancer (HNC), while radioresistance is a major cause leads to treatment failure. GDF15, a member of the TGF-β superfamily, is hypothesized to participate in various types of homeostasis. However, the potential role of this molecule in regulation of radiosensitivity remains unclear. In this study, we demonstrated that GDF15 contributed to radioresistance of HNC, as determined by both gain- and lost-of-functional experiments. These results were achieved by the induction of mitochondrial membrane potential and suppression of intracellular reactive oxygen species (ROS)...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900036/management-of-pediatric-head-and-neck-rhabdomyosarcoma-a-case-series-of-36-patients
#13
Joanna Radzikowska, Wojciech Kukwa, Andrzej Kukwa, Anna M Czarnecka, Maciej Kawecki, Fei Lian, Cezary Szczylik, Antoni Krzeski
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in the pediatric population. In 35% of cases, RMS develops in the head and neck (H&N) region, and only combined therapy is recognized as a curative treatment. However, recent advances in skull base and reconstructive surgery, along with microsurgery and endoscopic surgery, have strengthened the role of surgery as an important part of RMS treatment. In the present study, 36 pediatric RMS cases (24 males and 12 females) were analyzed after surgical treatment...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899959/rna-interference-in-head-and-neck-oncology
#14
Agnieszka Sobecka, Wojciech Barczak, Wiktoria Maria Suchorska
Head and neck squamous cell carcinoma (HNSCC) is the sixth leading cause of cancer worldwide. The treatment of choice in case of head and neck cancer is surgery, followed by chemo- or/and radiotherapy. A potentially effective instrument to improve the outcome of numerous diseases, including viral infections, diabetes and cancer, is RNA interference (RNAi). It has been demonstrated that small interfering RNA and microRNA molecules are strongly involved in the regulation of various different pathological processes in cancer development...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898196/mucosal-melanoma-of-the-upper-airways-tract-mucosal-melanoma-a-systematic-review-with-meta-analyses-of-treatment
#15
REVIEW
David Jarrom, Vinidh Paleri, Cyrus Kerawala, Thomas Roques, Shreerang Bhide, Laurence Newman, Stuart C Winter
BACKGROUND: Mucosal melanoma of the upper aerodigestive tract (MM-UADT) occurs in a complex anatomic region. It represents a small number of tumors of the head and neck and a small number of melanoma cases. METHODS: Search strategies initially identified 600, 11 of which were included in this study. RESULTS: All studies involved surgery and radiotherapy. None were randomized, and all were assessed as having a high risk of selection and performance bias...
November 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/27898191/reirradiation-with-intensity-modulated-radiotherapy-for-locally-recurrent-t3-to-t4-nasopharyngeal-carcinoma
#16
Oscar S H Chan, Henry C K Sze, Michael C H Lee, Lucy L K Chan, Amy T Y Chang, Sarah W M Lee, Wai Man Hung, Anne W M Lee, Wai Tong Ng
BACKGROUND: The purpose of this study was to assess the efficacy and toxicities of reirradiation using intensity-modulated radiotherapy (IMRT) in patients with locally advanced recurrent nasopharyngeal carcinoma (NPC). METHODS: Thirty-eight patients with consecutive rT3 to rT4 NPC treated between 2005 and 2013 were retrospectively analyzed. RESULTS: The 3-year overall survival (OS), progression-free survival (PFS), and local control rate were 47...
November 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/27897441/effects-of-molsidomine-on-retinopathy-and-oxidative-stress-induced-by-radiotheraphy-in-rat-eyes
#17
Murat Atabey Özer, Nihat Polat, Serkan Özen, Hakan Parlakpınar, Kemal Ekici, Alaaddin Polat, Nigar Vardı, Kevser Tanbek, Azibe Yildiz
PURPOSE: To determine the role of Molsidomine in preventing radiation-induced retinopathy after head and neck region irradiation of rats with a single radiation dose of 15 Gy. MATERIALS AND METHODS: Male Wistar albino rats were randomly grouped into five as follows: (1) control group rats, which were applied through an intraperitoneal (i.p.) vehicle without radiotherapy (RT); (2) RT group rats received a single dose of 15 Gy irradiation and after daily 0.1 ml vehicle i...
November 29, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27897274/modelling-tumour-volume-variations-in-head-and-neck-cancer-magnetic-resonance-imaging-contribution-for-patients-undergoing-induction-chemotherapy
#18
N Dinapoli, T Tartaglione, F Bussu, R Autorino, F Miccichè, M Sciandra, E Visconti, C Colosimo, G Paludetti, V Valentini
Primary tumour volume evaluation has predictive value for estimating survival outcomes. Using volumetric data acquired by MRI in patients undergoing induction chemotherapy (IC) these outcomes were estimated before the radiotherapy course in head and neck cancer (HNC) patients. MRI performed before and after IC in 36 locally advanced HNC patients were analysed to measure primary tumour volume. The two volumes were correlated using the linear-log ratio (LLR) between the volume in the first MRI and the volume in the second...
November 29, 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/27895920/pd1-pd-l1-inhibition-as-a-potential-radiosensitizer-in-head-and-neck-squamous-cell-carcinoma-a-case-report
#19
Misako Nagasaka, Mark Zaki, Harold Kim, S Naweed Raza, George Yoo, Ho-Sheng Lin, Ammar Sukari
BACKGROUND: Immunotherapy targeting the checkpoint PD1 (programmed cell death protein 1) or PDL1 (programmed death ligand 1) has led to advances in the treatment of melanoma and non-small cell lung cancer (NSCLC). The use of such therapies has also been introduced into the treatment of other malignancies, including head and neck cancer. The combined effects of checkpoint inhibitors and anti-PD1(L1) antibodies and radiation therapy have not yet been sufficiently investigated. CASE PRESENTATION: We report a case of locally relapsed non-resectable oral cavity squamous cell carcinoma, with excellent local control after pembrolizumab (MK3475) followed by radiotherapy...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27891443/a-randomized-prospective-study-of-concurrent-chemo-radiotherapy-vs-accelerated-hyperfractionation-in-advanced-cancer-of-head-and-neck
#20
Himanshu Mishra, Ritusha Mishra, Uday Prataap Shahi, Abhijit Mandal
INTRODUCTION: Locally advanced unresectable squamous cell carcinoma of head and neck has poor locoregional control when treated with conventionally fractionated Radiation Therapy (RT) alone. However, Concurrent Chemo-Radiotherapy (CRT) and altered fractionated RT schedules like Accelerated Hyperfractionation (AHF) are two different treatment strategies that have shown to be associated with better efficacy as compared to conventional RT alone in such cases. AIM: Aim of the study was to compare these two treatment strategies i...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
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