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Cancer of oropharynx

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https://www.readbyqxmd.com/read/29679492/knowledge-based-automated-planning-for-oropharyngeal-cancer
#1
Aaron Babier, Justin J Boutilier, Andrea L McNiven, Timothy C Y Chan
PURPOSE: To automatically generate radiation therapy plans for oropharynx patients by com-bining knowledge-based planning (KBP) predictions with an inverse optimization (IO) pipeline. METHODS: We developed two KBP approaches, the bagging query (BQ) method and the generalized principal component analysis-based (gPCA) method, to predict achievable dose volume histograms (DVHs). These approaches generalize existing methods by predicting physically feasible organ-at-risk (OAR) and target DVHs in sites with multiple targets...
April 21, 2018: Medical Physics
https://www.readbyqxmd.com/read/29673737/epidemiological-features-of-cancers-of-the-oral-cavity-oropharynx-hypopharynx-and-larynx-cancer-in-r%C3%A3-union-island
#2
A Delagranda, G Leterme, E Chirpaz, C Ferdynus, C Fernandez, F Rubin
INTRODUCTION: This study had two objectives: firstly, to identify and compare characteristics of cancer of the oral cavity, oropharynx, hypopharynx and larynx in Réunion Island, a tropical French overseas territory in the southern hemisphere; and secondly, to discuss how incidence of these cancers is presented in the international literature. MATERIAL AND METHOD: A retrospective study included 599 patients diagnosed with cancer of the oral cavity, oropharynx, hypopharynx or larynx between 2009 and 2013 in Réunion Island...
April 16, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29670856/cdkn2a-copy-number-loss-is-an-independent-prognostic-factor-in-hpv-negative-head-and-neck-squamous-cell-carcinoma
#3
William S Chen, Ranjit S Bindra, Allen Mo, Thomas Hayman, Zain Husain, Joseph N Contessa, Stephen G Gaffney, Jeffrey P Townsend, James B Yu
Background: HPV infection is associated with high p16 expression and good prognosis in head and neck squamous cell carcinomas (HNSCCs). Analysis of CDKN2A, the gene encoding p16, may further elucidate the association between p16 expression and prognosis. We sought to determine whether CDKN2A copy number loss was associated with poor survival in HPV-negative HNSCCs. Methods: The Cancer Genome Atlas HNSCC clinical and genomic data were obtained and integrated. Patients <80 years old with a primary tumor in the oral cavity, oropharynx, hypopharynx, or larynx were included...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29629890/infective-complications-after-free-flaps-reconstruction-in-patients-affected-by-head-and-neck-cancer-our-experience-on-77-cases
#4
Giovanni Dell'Aversana Orabona, Raffaele Corvino, Fabio Maglitto, Vincenzo Abbate, Paola Bonavolontà, Antonio Romano, Giovanni Salzano, Luigi Califano
AIM: The success rates of free flaps in patients undergoing head and neck cancer (HNC) surgery are very high (95%- 97%) but the development of a surgical site infection (SSI) can put flap viability at risk. The aim of our study is to identify the risk factors for SSI in patients undergo free flaps reconstruction after head and neck cancer removal. MATERIAL OF STUDY: Seventyseven patients (44 male and 33 female) from April 2006 to April 2015 admitted at the Department of Maxillofacial Surgery of the University of Naples "Federico II" were included in this study...
2018: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29628167/clinicopathological-features-of-squamous-cell-carcinoma-of-the-oral-cavity-and-oropharynx-in-young-patients
#5
R C-P Martinez, H P Sathasivam, B Cosway, V Paleri, S Fellows, J Adams, M Kennedy, R Pearson, A Long, P Sloan, M Robinson
Our aim was to examine the clinicopathological features of squamous cell carcinoma (SCC) of the oral cavity and oropharynx in a group of young patients who were dignosed during a 15-year period (2000-2014). Patients' clinical details, risk factors, and survival were obtained from medical records. Formalin-fixed, paraffin-embedded, tissue was tested for high-risk human papillomavirus (HPV). The results were compared with those of a matching group of older patients. We identified 91 patients who were younger than 45 years old, and the 50 youngest patients were studied in detail...
April 5, 2018: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29617493/pectoralis-major-myocutaneous-flap-in-head-and-neck-surgery-reconstructions-critical-analysis
#6
Marcelo Benedito Menezes, Kassem Samir Saleh, Marianne Yumi Nakai, Lucas Porto Maurity Dias, Norberto Kodi Kavabata, Antônio José Gonçalves
OBJECTIVE: to evaluate the results of the use of the pectoralis major flap in the reconstruction of head and neck surgeries. METHODS: we conducted a retrospective study with data bank analysis and review of medical records of patients with head and neck cancer operated at the Discipline of Head and Neck Surgery, Surgery Department, São Paulo Holy Home of Mercy, using the pectoralis major flap for reconstruction, in a period of 16 years. We analyzed age, gender, primary site of neoplasia, clinical staging, preoperative radiotherapy (RT) and complications, classified as major and minor...
March 29, 2018: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/29603576/incidence-of-head-and-neck-cancer-in-children-a-danish-nationwide-study-from-1978-to-2014
#7
Christian Grønhøj, Lisa Hjalgrim, Kathrine K Jakobsen, Birgitte Charabi, Christian Mirian, Gunnar H Laier, Katalin Kiss, Catherine Rechnitzer, Jeppe Friborg, Christian von Buchwald, Thomas Hjuler
BACKGROUND: Pediatric head and neck malignancies are rare and only a few descriptive epidemiological studies have been published. Using unique nationwide registries, we report age-specific incidence rates of head and neck cancer (HNC) among children during four decades. METHODS: Data were obtained from the Danish Cancer Registry. We included children aged 0-14 years diagnosed between January 1, 1978 and December 31, 2014 with extra-orbital, nonskin and nonbone HNC...
March 30, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29602454/optimise-the-microbial-flora-with-milk-and-yoghurt-to-prevent-disease
#8
James A Morris
Pathogenic bacteria, which are temporary or permanent members of our microbial flora, cause or contribute to a wide range of human disease at all ages. Conditions include Alzheimer's disease, atherosclerosis, diabetes mellitus, obesity, cancer, autoimmunity and psychosis, amongst others. The mechanism of damage is inflammation which can be chronic or acute. An optimal microbial flora includes a wide range of pathogenic bacteria in low dose. This allows specific immunity to be developed and maintained with minimal inflammatory damage...
May 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29594229/radiomic-analysis-in-prediction-of-human-papilloma-virus-status
#9
Kaixian Yu, Youyi Zhang, Yang Yu, Chao Huang, Rongjie Liu, Tengfei Li, Liuqing Yang, Jeffrey S Morris, Veerabhadran Baladandayuthapani, Hongtu Zhu
Human Papilloma Virus (HPV) has been associated with oropharyngeal cancer prognosis. Traditionally the HPV status is tested through invasive lab test. Recently, the rapid development of statistical image analysis techniques has enabled precise quantitative analysis of medical images. The quantitative analysis of Computed Tomography (CT) provides a non-invasive way to assess HPV status for oropharynx cancer patients. We designed a statistical radiomics approach analyzing CT images to predict HPV status. Various radiomics features were extracted from CT scans, and analyzed using statistical feature selection and prediction methods...
December 2017: Clinical and Translational Radiation Oncology
https://www.readbyqxmd.com/read/29594214/sdf-1-cxcr4-expression-in-head-and-neck-cancer-and-outcome-after-postoperative-radiochemotherapy
#10
Chiara De-Colle, David Mönnich, Stefan Welz, Simon Boeke, Bence Sipos, Falko Fend, Paul-Stefan Mauz, Inge Tinhofer, Volker Budach, Jehad Abu Jawad, Martin Stuschke, Panagiotis Balermpas, Claus Rödel, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Christine Bayer, Claus Belka, Steffi Pigorsch, Stephanie E Combs, Fabian Lohaus, Annett Linge, Mechthild Krause, Michael Baumann, Daniel Zips, Apostolos Menegakis
Introduction: Outcome after postoperative radiochemotherapy (RT-CT) for patients with advanced head and neck squamous cell carcinomas (HNSCC) remains unsatisfactory, especially among those with HPV negative tumours. Therefore, new biomarkers are needed to further define subgroups for individualised therapeutic approaches. Preclinical and first clinical observations showed that the chemokine receptor CXCR4 and its ligand SDF-1 (CXCL12) play an important role in tumour cell proliferation, survival, cancer progression, metastasis and treatment resistance...
August 2017: Clinical and Translational Radiation Oncology
https://www.readbyqxmd.com/read/29593938/oropharynx-hpv-status-and-its-relation-to-hiv-infection
#11
Leonora Maciel de Souza Vianna, Fabiana Pirani Carneiro, Rivadavio Amorim, Eliete Neves da Silva Guerra, Florêncio Figueiredo Cavalcanti Neto, Valdenize Tiziani, Andrea Barretto Motoyama, Anamélia Lorenzetti Bocca
Background: The number of oropharyngeal lesions caused by HPV (Human papillomavirus) has been increasing worldwide in the past years. In spite of the clinical relevance of HPV infection in the anogenital tract of HIV-positive patients, the relevance of oropharynx HPV infection in these patients is not clear. The aim of the present study was to detect HPV infection, and clinical and cytological changes in the oropharynx of HIV-positive patients. Methods: Samples collected from the oropharynx of 100 HIV-positive patients were subjected to hybrid capture (HC), conventional and liquid-based cytology...
2018: PeerJ
https://www.readbyqxmd.com/read/29590186/jmjd1a-h3k9me1-h3k9me2-and-adm-expression-as-prognostic-markers-in-oral-and-oropharyngeal-squamous-cell-carcinoma
#12
Lucas de Lima Maia, Gabriela Tonini Peterle, Marcelo Dos Santos, Leonardo Oliveira Trivilin, Suzanny Oliveira Mendes, Mayara Mota de Oliveira, Joaquim Gasparini Dos Santos, Elaine Stur, Lidiane Pignaton Agostini, Cinthia Vidal Monteiro da Silva Couto, Juliana Dalbó, Aricia Leone Evangelista Monteiro de Assis, Anderson Barros Archanjo, Ana Maria Da Cunha Mercante, Rossana Veronica Mendoza Lopez, Fábio Daumas Nunes, Marcos Brasilino de Carvalho, Eloiza Helena Tajara, Iúri Drumond Louro, Adriana Madeira Álvares-da-Silva
AIMS: Jumonji Domain-Containing 1A (JMJD1A) protein promotes demethylation of histones, especially at lysin-9 of di-methylated histone H3 (H3K9me2) or mono-methylated (H3K9me1). Increased levels of H3 histone methylation at lysin-9 (H3K9) is related to tumor suppressor gene silencing. JMJD1A gene target Adrenomeduline (ADM) has shown to promote cell growth and tumorigenesis. JMJD1A and ADM expression, as well as H3K9 methylation level have been related with development risk and prognosis of several tumor types...
2018: PloS One
https://www.readbyqxmd.com/read/29573279/fdg-pet-metabolic-tumor-parameters-for-the-reirradiation-of-recurrent-head-and-neck-cancer
#13
Maria A Velez, Darlene Veruttipong, Pin-Chieh Wang, Elliot Abemayor, Maie St John, Mindi TenNapel, Allen M Chen
OBJECTIVE: The utility of fluorodeoxyglucose positron emission tomography (FDG-PET) imaging to predict outcome has been well-established for patients undergoing definitive radiation in the initial management of head and neck cancer. However, the usefulness of this modality in the recurrent setting remains uncertain. We sought to evaluate the prognostic value of metabolic tumor parameters measured on FDG-PET in patients treated by reirradiation for recurrent head and neck cancer. METHODS: Thirty-four tumors occurring in 29 patients were reirradiated and were evaluable...
March 24, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29559870/the-submental-island-flap-is-a-viable-reconstructive-option-for-a-variety-of-head-and-neck-ablative-defects
#14
Blair M Barton, Charles A Riley, Jason D Pou, Christian P Hasney, Brian A Moore
Background: The submental island flap (SIF) is a pedicled flap based upon the submental artery and vein. Its utility in reconstruction following ablative head and neck procedures has been applied to various subsites including skin, lip, buccal mucosa, retromolar trigone, parotidectomy defects, and tongue. We review our experience using the SIF for reconstruction following tumor ablation. Methods: This prospective case series with medical record review includes consecutive patients undergoing SIF reconstruction following ablative surgery for malignancy at a single tertiary care facility between November 2014 and November 2016...
2018: Ochsner Journal
https://www.readbyqxmd.com/read/29542051/quantifying-anatomic-deformations-during-laryngoscopy
#15
Xiaotian Wu, Joseph A Paydarfar, Ryan J Halter
For a variety of head and neck cancers, specifically those of the oropharynx, larynx, and hypopharynx, minimally invasive trans-oral approaches have been developed to reduce perioperative and long-term morbidity. However, in trans-oral surgical approaches anatomical deformation due to instrumentation, specifically placement of laryngoscopes and retractors, present a significant challenge for surgeons relying on preoperative imaging to resect tumors to negative margins. Quantifying the deformation due to instrumentation is needed in order to develop predictive models of operative deformation...
March 14, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29530457/patient-characteristics-and-costs-in-recurrent-or-refractory-head-and-neck-cancer-retrospective-analysis-of-a-community-oncology-database
#16
Maxine D Fisher, Ancilla W Fernandes, Temitope O Olufade, Paul J Miller, Mark S Walker, Moon Fenton
PURPOSE: The goal of this study was to describe patient characteristics, health resource utilization (HRU), and costs associated with treating recurrent or refractory head and neck cancer (HNC) among patients with disease progression in the community oncology setting. METHODS: This retrospective observational study was conducted by using data from the Vector Oncology Data Warehouse. Patients had been diagnosed with locally advanced or metastatic (stage III-IVc) HNC between January 1, 2007, and October 1, 2015...
March 9, 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29516934/patterns-of-tobacco-use-in-patients-with-upper-aero-digestive-tract-cancers-a-hospital-based-study
#17
Amal Chandra Kataki, Jagannath Dev Sharma, Manigreeva Krishnatreya, Nizara Baishya, Manoj Kalita
Background: Tobacco use is a major risk factor for increasing the burden of upper aero digestive tract (UADT) cancer in the population of Northeast India. Objective: The objective of this study was to investigate the pattern of tobacco use in different UADT cancer. Materials and Methods: This was a retrospective study of electronically recorded data of the Hospital Cancer Registry for the period of May 2014 to December 2014. The UADT cancers were evaluated for gender and age-group distribution, their relative proportion, and association with tobacco use and tobacco-associated risk in males to develop UADT cancers...
January 2018: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29496048/evaluating-oropharyngeal-carcinoma-with-transcervical-ultrasound-ct-and-mri
#18
Farhoud Faraji, Stephanie F Coquia, Meghan B Wenderoth, Ericka S Padilla, Dana Blitz, M Robert DeJong, Nafi Aygun, Ulrike M Hamper, Carole Fakhry
OBJECTIVE: To compare transcervical ultrasonography (US) to standard cross-sectional imaging for the visualization of human papillomavirus-related oropharyngeal cancer (HPV-OPC). MATERIALS AND METHODS: Patients with HPV-OPC and available standard imaging (CT and/or MRI) were identified in clinic and prospectively enrolled. US was performed to visualize the oropharynx and lymph nodes. Tumor characteristics across imaging modalities were evaluated (CT versus MRI, and US versus standard imaging (SI))...
March 2018: Oral Oncology
https://www.readbyqxmd.com/read/29496037/pitfalls-of-post-treatment-pet-after-de-intensified-chemoradiotherapy-for-hpv-associated-oropharynx-cancer-secondary-analysis-of-a-phase-2-trial
#19
Kyle Wang, Terence Z Wong, Robert J Amdur, William M Mendenhall, Nathan C Sheets, Rebecca Green, Brian D Thorp, Samip N Patel, Trevor G Hackman, Adam M Zanation, Mark C Weissler, Bhishamjit S Chera
OBJECTIVES: We evaluated patterns of nodal response and positive predictive value (PPV) of 3 month post-treatment PET in patients with HPV-associated oropharyngeal cancer treated on a multi-institutional de-intensification trial. MATERIALS AND METHODS: Eligibility criteria included: (1) T0-3, N0-2c, M0, (2) HPV+/p16+ oropharyngeal squamous cell carcinoma, and (3) ≤10 pack-years smoking or ≤30 pack-years and abstinent ≥5 years. Patients received 60 Gy radiation alone (T0-2, N0-1) or with concurrent weekly cisplatin 30 mg/m2 and surveillance PET three months post-radiation...
March 2018: Oral Oncology
https://www.readbyqxmd.com/read/29493423/immune-cell-infiltration-in-head-and-neck-squamous-cell-carcinoma-and-patient-outcome-a-retrospective-study
#20
Karolin Schneider, Etienne Marbaix, Caroline Bouzin, Marc Hamoir, Pierre Mahy, Vanesa Bol, Vincent Grégoire
BACKGROUND: Human papillomavirus (HPV) prevalence in oropharynx squamous cell carcinoma (OPSCC) is on the rise. HPV-linked OPSCCs represent a distinct clinical entity with a better treatment response and patient survival compared to tumors not linked to HPV. An emerging role in treatment response has been attributed to immune cell infiltration in human tumors. In this study, we investigated immune cell infiltration in human SCC of the head and neck region and its relation to overall survival after treatment with surgery (with or without radiotherapy) or concomitant chemo (or cetuximab)-radiotherapy...
March 1, 2018: Acta Oncologica
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