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https://www.readbyqxmd.com/read/28939061/chemoradiotherapy-for-locally-advanced-squamous-cell-carcinoma-of-the-oropharynx-does-completion-of-systemic-therapy-affect-outcomes
#1
Michael Baine, Tim Dorius, Nathan Bennion, Morshed Alam, Lynette Smith, Weining Zhen, Apar Ganti
INTRODUCTION: Current standard of care for locally advanced squamous cell carcinoma of the oropharynx (LA-OPC) consists of concurrent chemoradiotherapy. Due to toxicities associated with this treatment, a significant portion of patients are unable to complete the systemic therapy portion of their treatment course. The impact of incomplete systemic therapy on patient outcomes remains unclear. METHODS: Demographic, treatment, and outcome data were retrospectively collected for patients with LA-OPC treated definitively with concurrent chemoradiotherapy between 2007 and 2014...
October 2017: Oral Oncology
https://www.readbyqxmd.com/read/28938850/cd73-expression-in-lymph-node-metastases-in-patients-with-head-and-neck-cancer
#2
Magis Mandapathil, Mehtap Boduc, Christoph Netzer, Christian Güldner, Marion Roessler, Ute Wallicek-Dworschak, Evelyn Jahns, Boris Stuck
INTRODUCTION: CD73 is an enzyme crucial in the metabolism of immunosuppressive adenosine. In cancer, it has various functions including tumor growth and metastases. Squamous cell carcinoma of the head and neck has an overall poor prognosis, also due to early spread of metastatic cells. MATERIALS AND METHODS: Tumor and lymph node specimens of 65 patients with HNSCC were subjected to immunohistochemical and H-score analysis of CD73 expression. Demographics, diagnoses, histopathology and subsequent outcome were analyzed...
September 22, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28936552/rational-and-simplified-nomenclature-for-buccinator-myomucosal-flaps
#3
Olindo Massarelli, Luigi Angelo Vaira, Andrea Biglio, Roberta Gobbi, Pasquale Piombino, Giacomo De Riu
BACKGROUND: Reconstruction of moderate-sized mucosal defects of the oral cavity or oropharynx represents a surgical challenge. Buccinator myomucosal flaps seem to provide "ideal reconstruction" of oral/oropharyngeal defects because they carry a thin, mobile, well-vascularized, and sensitive tissue, like that excised or lost. Nevertheless, these flaps are not immediately popular because of confusion surrounding the complex terminology used to name them. METHODS: After a retrospective study on our experience and a literature review, the authors propose a new rational and simplified nomenclature for the classification of buccinator myomucosal flaps, which clarifies the source vessel, the composition of the flap, and the type of transfer...
September 21, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28934176/positron-emission-tomographic-imaging-elucidates-the-complex-relationship-between-glucose-uptake-and-tissue-blood-flow-mechanism-in-squamous-cell-oral-cancer-patients
#4
Ping Xu, Yan Li, Shuyong Yang, Mingzhe Li, Chenjun Li
BACKGROUND Through the clinical use of positron emission tomography, we aimed to elucidate the complex relationship between glucose uptake and squamous cell oral cancer (ScOC) growth, along with its mechanism with respect to tissue blood flow (tBF). MATERIAL AND METHODS We retrospectively reviewed a total of 69 newly diagnosed ScOC patients by Fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography (PET). Maximum and mean standard uptake values (SUV↑ and SUV) were recorded to assess glucose uptake...
September 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28930178/diagnostic-value-of-endotracheal-aspirates-sonication-on-ventilator-associated-pneumonia-microbiologic-diagnosis
#5
Laia Fernández-Barat, Ana Motos, Otavio T Ranzani, Gianluigi Li Bassi, Elisabet Aguilera Xiol, Tarek Senussi, Chiara Travierso, Chiara Chiurazzi, Francesco Idone, Laura Muñoz, Jordi Vila, Miquel Ferrer, Paolo Pelosi, Francesco Blasi, Massimo Antonelli, Antoni Torres
Microorganisms are able to form biofilms within respiratory secretions. Methods to disaggregate such biofilms before utilizing standard, rapid, or high throughput diagnostic technologies may aid in pathogen detection during ventilator associated pneumonia (VAP) diagnosis. Our aim was to determine if sonication of endotracheal aspirates (ETA) would increase the sensitivity of qualitative, semi-quantitative, and quantitative bacterial cultures in an animal model of pneumonia caused by Pseudomonasaeruginosa or by methicillin resistant Staphylococcusaureus (MRSA)...
September 20, 2017: Microorganisms
https://www.readbyqxmd.com/read/28928286/hpv-integration-in-hnscc-correlates-with-survival-outcomes-immune-response-signatures-and-candidate-drivers
#6
Lada A Koneva, Yanxiao Zhang, Shama Virani, Pelle B Hall, Jonathan B McHugh, Douglas B Chepeha, Gregory Wolf, Thomas E Carey, Laura S Rozek, Maureen A Sartor
The incidence of human papillomavirus (HPV)-related oropharynx cancer has steadily increased over the past two decades, and now represents a majority of oropharyngeal cancer cases. Integration of the HPV genome into the host genome is a common event during carcinogenesis that has clinically-relevant effects if the viral early genes are transcribed. Understanding the impact of HPV integration on clinical outcomes of head and neck squamous cell carcinoma (HNSCC) is critical for implementing de-escalated treatment approaches for HPV-positive HNSCC patients...
September 19, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28926591/no-evidence-for-the-presence-of-epstein-barr-virus-in-squamous-cell-carcinoma-of-the-mobile-tongue
#7
Torben Wilms, Gulfaraz Khan, Philip J Coates, Nicola Sgaramella, Robin Fåhraeus, Asma Hassani, Pretty S Philip, Lena Norberg Spaak, Luigi Califano, Giuseppe Colella, Katarina Olofsson, Christos Loizou, Renato Franco, Karin Nylander
Squamous cell carcinoma of the head and neck (SCCHN) comprises a large group of cancers in the oral cavity and nasopharyngeal area that typically arise in older males in association with alcohol/tobacco usage. Within the oral cavity, the mobile tongue is the most common site for tumour development. The incidence of tongue squamous cell carcinoma (TSCC) is increasing in younger people, which has been suggested to associate with a viral aetiology. Two common human oncogenic viruses, human papilloma virus (HPV) and Epstein-Barr virus (EBV) are known causes of certain types of SCCHN, namely the oropharynx and nasopharynx, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28916165/muc1-deficiency-exacerbates-pulmonary-fibrosis-in-a-mouse-model-of-silicosis
#8
Kosuke Kato, Marina A Zemskova, Alec D Hanss, Marianne M Kim, Sandra J Gendler, Ross Summer, Kwang Chul Kim
BACKGROUND: MUC1 (MUC in human and Muc in animals) is a membrane-tethered mucin expressed on the apical surface of lung epithelial cells. However, in the lungs of patients with interstitial lung disease, MUC1 is aberrantly expressed in hyperplastic alveolar type II epithelial (ATII) cells and alveolar macrophages (AM), and elevated levels of extracellular MUC1 are found in bronchoalveolar lavage (BAL) fluid and the serum of these patients. While pro-fibrotic effects of extracellular MUC1 have recently been described in cultured fibroblasts, the contribution of MUC1 to the pathobiology of pulmonary fibrosis is unknown...
September 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28912993/bilateral-peritonsillar-abscess-in-an-infant-an-unusual-presentation-of-sore-throat
#9
Mariana Manzoni Seerig, Letícia Chueiri, Janaina Jacques, Maria Fernanda Piccoli Cardoso de Mello, Martin Batista Coutinho da Silva, Daniel Buffon Zatt, Rosana Cristine Otero Cunha, Andre Souza de Albuquerque Maranhão
INTRODUCTION: Peritonsillar abscess is considered a suppurative complication of acute tonsillitis. It is usually unilateral and clinically evident bilateral presentation is uncommon. The condition affects mainly children older than 10 years and young adults. Herein we present a rare case of bilateral peritonsillar abscess in an infant. PRESENTATION OF CASE: A 1-year-old boy presented with a two-day history of worsening sore throat, loss of appetite, vomiting, and fever...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28906336/interobserver-consistency-of-drug-induced-sleep-endoscopy-in-diagnosing-obstructive-sleep-apnea-using-a-vote-classification-system
#10
Ahmet Altintaş, Burak Olgun, Yakup Yegin, Mustafa Çelik, Kamil Hakan Kaya, Arzu Karaman Koç, Fatma Tülin Kayhan
OBJECTIVES: To explore the interobserver consistency of drug-induced sleep endoscopy (DISE) for patients with obstructive sleep apnea syndrome (OSAS) and review the current literature. METHODS: In total, 55 patients with an apnea-hypopnea index >5, as determined by on overnight sleep study, were included in this study, 45 males and 10 females, with an average age of 46.87 ± 10.06 years old (range, 19-71). For all OSAS patients, DISE was performed by the same surgeon, which was recorded digitally...
September 12, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28904526/a-case-of-a-very-elongated-styloid-process
#11
YaLi Liu, Huaian Yang, Xiangguo Cui
Eagle syndrome is characterized by recurrent pain in the oropharynx and face due to an elongated styloid process or calcified stylohyoid ligament. In this article, we experienced a case of an elongated styloid process which is very rare in size and detailed treatment process. The patient was a 53-year-old Chinese woman with a chief complaint of frequent episodes of radiating pain in left preauricular region for 2 years. An intraoral approach was chosen to shorten part of her styloid process, and the chief complaint disappeared immediately after the operation...
2017: Clinical Medicine Insights. Ear, Nose and Throat
https://www.readbyqxmd.com/read/28900158/dynamic-oropharyngeal-and-faecal-microbiota-during-treatment-in-infants-hospitalized-for-bronchiolitis-compared-with-age-matched-healthy-subjects
#12
Qian Hu, Wenkui Dai, Qian Zhou, Dan Fu, Yuejie Zheng, Wenjian Wang, Yanhong Liu, Qin Yang, Dongling Dai, Sixi Liu, Guosheng Liu, Shuaicheng Li, Feiqiu Wen
Bronchiolitis is one of the most severe diseases affecting infants worldwide. An imbalanced oropharynx (OP) microbiota has been reported in infants hospitalized with bronchiolitis; however, the microbiota dynamics in the OP and faeces during therapy remain unexplored. In total, 27 infants who were hospitalized with bronchiolitis were selected for this study, and sampling was conducted before therapy and after clinical recovery. We also recruited 22 age-matched healthy infants for this study. The faecal and OP microbiota diversity in the patients was lower than that in the healthy children...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28895886/immunopathogenesis-of-hpv-associated-cancers-and-prospects-for-immunotherapy
#13
REVIEW
Sigrun Smola
Human papillomavirus (HPV) infection is a causative factor for various cancers of the anogenital region and oropharynx, and is supposed to play an important cofactor role for skin carcinogenesis. Evasion from immunosurveillance favors viral persistence. However, there is evidence that the mere presence of oncogenic HPV is not sufficient for malignant progression and that additional tumor-promoting steps are required. Recent studies have demonstrated that HPV-transformed cells actively promote chronic stromal inflammation and conspire with cells in the local microenvironment to promote carcinogenesis...
September 12, 2017: Viruses
https://www.readbyqxmd.com/read/28894823/the-benefit-of-adjuvant-radiation-in-surgically-treated-t1-2-n1-oropharyngeal-squamous-cell-carcinoma
#14
Marcus M Monroe, Luke O Buchmann, Jason P Hunt, Ying J Hitchcock, Shane Lloyd, Mia Hashibe
IMPORTANCE: The benefit of adjuvant radiation in surgically treated T1-2N1 oropharyngeal cancer without adverse pathologic features remains unclear. OBJECTIVES: To compare population-level survival outcomes in surgically-treated T1-2N1 oropharyngeal squamous cell carcinoma (OPSCC) with and without the use of adjuvant radiation. STUDY DESIGN: Retrospective population-based study using the Surveillance, Epidemiology, and End Results (SEER) registry data from 1998-2011...
April 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28892599/occult-syphilitic-chancres-in-the-rectum-and-oropharynx
#15
Jason J Ong, Janet M Towns, Marcus Y Chen, Christopher K Fairley
No abstract text is available yet for this article.
September 2017: Australian Family Physician
https://www.readbyqxmd.com/read/28886357/a-retrospective-volume-matched-analysis-of-the-submental-artery-island-pedicled-flap-as-compared-to-the-forearm-free-flap-is-it-a-good-alternative-choice-for-the-reconstruction-of-defects-of-the-oral-cavity-and-oropharynx
#16
Nawaf Aslam-Pervez, Steven J Caldroney, Amal Isaiah, Joshua E Lubek
PURPOSE: The submental artery island pedicled flap (SMIF) is an underused alternative for reconstruction of head and neck defects after tumor ablation. The purpose of this study was to perform a comparative evaluation of reconstructive outcomes based on surgical site and ablative defect volume in patients who underwent reconstruction with the SMIF versus the forearm free flap (FFF). MATERIALS AND METHODS: A retrospective cohort study of all patients with oral cavity and oropharyngeal defects reconstructed with the SMIF and a cohort of patients with similar volume defects reconstructed with the FFF were compared for oncologic safety and viability of equivalent reconstructive outcomes...
August 12, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28885213/presentation-of-a-variation-of-the-chorioallantoic-membrane-set-up-as-a-potential-model-for-individual-therapy-for-squamous-cell-carcinoma-of-the-oropharynx
#17
P Kauffmann, M Troeltzsch, R Cordesmeyer, P I Heidekrueger, H Schliephake, M Canis, H A Wolff, M Rave-Fraenk, P Stroebel, A Kehrer, L Prantl, T Aung
The chorioallantoic membrane of fertilized chicken eggs in an early phase of breeding presents an approved test situation for the growth and treatment of human cancer cells.These models work due to the inoculation of cells into the membrane that stays within the egg shell during the time of investigation. In this study a modification of this model is presented. Samples of native tumors, rather than cell lines, are transplanted into the membrane and the body of the egg is taken out of the shell and placed in a plastic bowl...
September 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28881101/nasal-high-frequency-oscillatory-ventilation-impairs-heated-humidification-a-neonatal-bench-study
#18
Tim L Ullrich, Christoph Czernik, Christoph Bührer, Gerd Schmalisch, Hendrik S Fischer
OBJECTIVE: Nasal high-frequency oscillatory ventilation (nHFOV) is a novel mode of non-invasive ventilation used in neonates. However, upper airway obstructions due to viscous secretions have been described as specific adverse effects. We hypothesized that high-frequency oscillations reduce air humidity in the oropharynx, resulting in upper airway desiccation. Therefore, we aimed to investigate the effects of nHFOV ventilatory settings on oropharyngeal gas conditions. METHODS: NHFOV or nasal continuous positive airway pressure (nCPAP) was applied, along with heated humidification, to a previously established neonatal bench model that simulates oropharyngeal gas conditions during spontaneous breathing through an open mouth...
September 7, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28880679/application-of-nanocarrier-based-drug-delivery-system-in-treatment-of-oral-cancer
#19
Abhishek K Sah, Amber Vyas, Preeti K Suresh, Bina Gidwani
Oral cancer includes cancer of lips, oral cavity and oropharynx. Oral cancer is the sixth most life-threatening disease affecting 65% of population. The delivery of cytotoxic chemotherapeutic anticancer drugs is a challenging task due to unfavorable properties. Both synthetic chemotherapeutic agents and herbal constituents are used in treatment of oral cancer. The purpose of present article is to overcome the limitations through concept of nanotechnology and conjugation approach. Also, it will provide better therapeutic effect and sustain long life of healthy and recovered cells...
September 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28877231/functional-characterization-of-t-cells-from-palatine-tonsils-in-patients-with-chronic-tonsillitis
#20
Katharina Geißler, Robby Markwart, Robert Pascal Requardt, Cynthia Weigel, Katja Schubert, André Scherag, Ignacio Rubio, Orlando Guntinas-Lichius
The palatine tonsils, localized in the oropharynx, are easily accessible secondary lymphoid tissue in humans. Inflammation of the palatine tonsils, local and chronic in case of chronic tonsillitis (CT) or acute in the presence of a peritonsillar abscess (PTA), ranks among the most common diseases in otolaryngology. However, the functionality of tonsillar immune cells, notably T-cells, in the context of these immune pathologies is poorly understood. We have examined the functional status of human tonsillar T-cells in CT and compared it to the acute inflammatory setting of a PTA...
2017: PloS One
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