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https://www.readbyqxmd.com/read/28444831/analysis-of-modulation-factor-to-shorten-the-delivery-time-in-helical-tomotherapy
#1
Hidetoshi Shimizu, Koji Sasaki, Hiroyuki Tachibana, Natsuo Tomita, Chiyoko Makita, Kuniyasu Nakashima, Kazushi Yokoi, Takashi Kubota, Manabu Yoshimoto, Tohru Iwata, Takeshi Kodaira
A low modulation factor (MF) maintaining a good dose distribution contributes to the shortening of the delivery time and efficiency of the treatment plan in helical tomotherapy. The purpose of this study was to reduce the delivery time using initial values and the upper limit values of MF. First, patients with head and neck cancer (293 cases) or prostate cancer (181 cases) treated between June 2011 and July 2015 were included in the analysis of MF values. The initial MF value (MFinitial ) was defined as the average MFactual value, and the upper limit of the MF value (MFUL ) was defined according the following equation: MFUL = 2 × standard deviation of MFactual value + the average MFactual Next, a treatment plan was designed for patients with head and neck cancer (62 cases) and prostate cancer (13 cases) treated between December 2015 and June 2016...
April 26, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28444429/hypopharyngeal-and-upper-esophageal-ulceration-after-cervical-spine-radiotherapy-concurrent-with-crizotinib
#2
Marcus H Zimmermann, Gabriele Beckmann, Pius Jung, Michael Flentje
Herein, the authors describe the case of a 31-year-old female patient with primary metastatic adenocarcinoma of the lung referred for radiation therapy of newly diagnosed intramedullary spinal cord metastasis at C4/5 and an adjacent osteolytic lesion. Radiotherapy of the cervical spine level C3 to C5, including the whole vertebra, was performed with 30 Gy in 10 fractions. The patient's systemic therapy with crizotinib 250 mg twice daily was continued. After 8 fractions of radiation the patient developed increasing dysphagia...
April 25, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28425188/effects-of-age-and-viscosity-on-food-transport-and-breathing-swallowing-coordination-during-eating-of-two-phase-food-in-nursing-home-residents
#3
Tsuyoshi Yamada, Koichiro Matsuo, Masayuki Izawa, Shizuru Yamada, Yuji Masuda, Tadashi Ogasawara
AIM: When eating food that contains both liquid and solid phases, the liquid component frequently enters the hypopharynx before swallowing and can increase the risk of aspiration. Thus, we examined whether the initial viscosity of mixed consistency food could alter pre-swallow food transport and breathing-swallowing coordination in older adults. METHODS: Fiberoptic endoscopy was recorded while 18 healthy young adults and 19 older adults ate 5 g of steamed rice combined with 3 mL of blue-dye water...
April 20, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28419557/usefulness-of-the-valsalva-maneuver-without-a-mouthpiece-to-observe-the-hypopharynx-using-transoral-endoscopy
#4
Yasushi Yamasaki, Ryu Ishihara, Kenta Hamada
Transoral endoscopy with narrow band imaging is useful for early detection of pharyngeal cancer.(1) The postcricoid area and the posterior wall of the hypopharynx, however, are still difficult to observe because they're anatomically closed.(2) Although the Valsalva maneuver with transnasal endoscopy has been reportedly useful for opening the closed area,(3) it is difficult with transoral endoscopy. This article is protected by copyright. All rights reserved.
April 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28417663/is-neck-dissection-associated-with-an-increased-risk-of-postoperative-stroke
#5
John D Cramer, Urjeet A Patel, Matthew B Maas, Sandeep Samant, Stephanie Shintani Smith
Objective Prior studies have reported widely disparate rates of postoperative stroke, with conflicting analyses of whether neck dissection is an independent risk factor. Study Design Cohort study. Setting American College of Surgeons National Surgical Quality Improvement Program from 2005 to 2013. Subjects and Methods We compared the 30-day rate of postoperative stroke between patients undergoing complete or modified radical neck dissection and a control cohort composed of those undergoing resections in the oral cavity, oropharynx, larynx, or hypopharynx without neck dissection...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28416345/laryngeal-function-preserving-operation-for-t4a-laryngeal-cancer-with-vocal-cord-paralysis-a-case-report
#6
Yukinori Asada, Koreyuki Kurosawa, Ko Matsumoto, Takahiro Goto, Kengo Katoh, Takayuki Imai, Shigeru Saijo, Kazuto Matsuura
For locally advanced laryngeal cancers, the standard treatment of choice is chemoradiotherapy if organ function needs to be conserved. Surgical treatment with larynx preservation is conducted only for limited cases. For locally advanced laryngeal cancers such as those with vocal cord fixation and/or cricoid cartilage destruction, there is no apparent standardized organ-preserving surgery keeping the essential laryngeal functions, viz. the airway, deglutition and articulation, uncompromized. Recently, our surgical team saw a patient with T4a advanced laryngeal cancer with vocal cord fixation who aspired to maintain his laryngeal function...
April 14, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28413789/role-of-neoadjuvant-chemotherapy-in-advanced-carcinoma-of-the-hypopharynx-and-larynx
#7
Poonam Joshi, Amit Joshi, Vanita Norohna, Pankaj Chaturvedi, Vijay Patil, Jai Prakash Agarwal, Shashikant Juvekar, Kumar Prabhash
BACKGROUND: To assess the response rate and impact of neoadjuvant chemotherapy (NACT) in advanced carcinoma of the hypopharynx and larynx. MATERIALS AND METHODS: This is a retrospective case series of 80 patients with locally advanced laryngopharynx carcinoma who received NACT from April 2010 to October 2011 at our tertiary care center. The patients received NACT either for achieving resectability or for organ preservation. RESULTS: Majority of the patients (60%) had T4 a disease...
January 2017: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28413676/expression-patterns-of-cd168-correlate-with-the-stage-and-grade-of-squamous-cell-carcinoma-of-head-and-neck
#8
Korinna Jöhrens, Ioannis Anagnostopoulos, Steffen Dommerich, Jan Dirk Raguse, Agnieszka J Szczepek, Frederick Klauschen, Katharina Stölzel
The receptor for hyaluronan-mediated motility CD168 is associated with the processes of oncogenesis and metastasis. The objective of the present study was to determine the possible association between the expression and distribution of CD168 and the tumor stage of head-and-neck squamous cell carcinoma (SCC). Formalin-fixed and paraffin-embedded tumor samples obtained from 100 patients during primary resection of SCC from the oral cavity, oropharynx, hypopharynx or larynx were included in the present study. The patients were divided into two risk groups: Low risk, representing the early stage of completely resected SCCs with good-to-moderate differentiation, and the high-risk group, representing the advanced stage SCCs with positive resection margins, vascular invasion or locoregional metastasis...
April 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28413147/branchial-cleft-cyst-an-unusual-site-for-the-cervical-metastasis-of-nasopharyngeal-carcinoma
#9
Yu-Chang Liao, Mohamad Adel, Li-Yu Lee, Kai-Ping Chang
OBJECTIVE: Cancers found in the resected branchial cleft cyst are rare clinically but usually impose substantive diagnostic and treatment challenges for clinicians. METHODS: A 31-year-old man presented with a lateral neck mass that was suspected to be an inflammatory branchial cleft cyst. After excision, the pathologic specimen revealed a benign cystic appearance with a focus of undifferentiated carcinoma. Serologic tests for Epstein-Barr virus were negative. A positron emission tomography scan and upper aerodigestive tract endoscopies were negative for any other suspicious lesion...
April 13, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28413075/abrasion-and-blunt-tissue-trauma-study-of-a-novel-flexible-robotic-system-in-the-porcine-model
#10
Michael Z Lerner, Michael Tricoli, Marshall Strome
OBJECTIVES: The objective of this study was to determine if a flexible robotic system caused increased tissue reaction when accessing the oropharynx and hypopharynx compared to intubation controls in only 2 scenarios: high speed tissue impact and multiple unit insertions and retractions. The data obtained were submitted as part of the entirety of information submitted for FDA approval. METHODS: This study consisted of 5 groups of Yorkshire pigs (2 animals per group)...
April 11, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28409743/pet-neck-a-multicentre-randomised-phase-iii-non-inferiority-trial-comparing-a-positron-emission-tomography-computerised-tomography-guided-watch-and-wait-policy-with-planned-neck-dissection-in-the-management-of-locally-advanced-n2-n3-nodal-metastases-in-patients
#11
Hisham Mehanna, Chris C McConkey, Joy K Rahman, Wai-Lup Wong, Alison F Smith, Chris Nutting, Andrew Gj Hartley, Peter Hall, Claire Hulme, Dharmesh K Patel, Sandra Ventorin von Zeidler, Max Robinson, Bal Sanghera, Lydia Fresco, Janet A Dunn
BACKGROUND: Planned neck dissection (ND) after radical chemoradiotherapy (CRT) for locally advanced nodal metastases in patients with head and neck squamous cell carcinoma (HNSCC) remains controversial. Thirty per cent of ND specimens show histological evidence of tumour. Consequently, a significant proportion of clinicians still practise planned ND. Fludeoxyglucose positron emission tomography (PET)-computerised tomography (CT) scanning demonstrated high negative predictive values for persistent nodal disease, providing a possible alternative paradigm to ND...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28407983/predictors-affecting-quality-of-life-in-patients-with-upper-aerodigestive-tract-cancers-a-case-control-study-from-india
#12
Bhawna Gupta, Narinder Kumar, Newell W Johnson
OBJECTIVE: The aim of this study was to measure quality of life (QOL) in patients with upper aerodigestive tract (UADT) cancer in comparison with hospital-based controls. We also assessed the impact of various clinical predictors at time of diagnosis of disease/cancer on QOL in these patients. STUDY DESIGN: A case-control study was conducted (N = 480) with 240 UADT cancer cases and 240 controls matched by gender and age (≥5 years) from 2 different hospitals in Pune, India...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28387372/computational-fluid-dynamics-simulation-of-the-upper-airway-response-to-large-incisor-retraction-in-adult-class-i-bimaxillary-protrusion-patients
#13
Zhe Zheng, Hong Liu, Qi Xu, Wei Wu, Liling Du, Hong Chen, Yiwen Zhang, Dongxu Liu
The changes of the upper airway after large retraction of the incisors in adult class I bimaxillary protrusion patients were assessed mainly focused on the anatomic variation and ignored the functional changes. This study aimed to investigate the changes of the upper airway in adult class I bimaxillary protrusion patients after extraction treatment using the functional images based on computational fluid dynamics (CFD). CFD was implemented after 3D reconstruction based on the CBCT of 30 patients who have completed extraction treatment...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28382126/primary-concurrent-chemoradiation-in-head-and-neck-cancers-with-weekly-cisplatin-chemotherapy-analysis-of-compliance-toxicity-and-survival
#14
Muhammad Shahid Iqbal, Cheng Chaw, Josef Kovarik, Shahzeena Aslam, Aaron Jackson, John Kelly, Werner Dobrowsky, Charles Kelly
Introduction Concurrent chemoradiation is the standard of care in inoperable locally advanced squamous cell head and neck cancers. The most widely accepted schedule of concomitant cisplatin is 100mg/m(2) given on a 3 weekly basis but the optimal regime is unknown. Objective The objective of this study is to assess the tolerability, compliance, and clinical outcomes of weekly cisplatin (40mg/m(2)). Methods During the period of January 2007-December 2009, we analyzed retrospectively 122 patients with histologically proven squamous cell carcinoma of head and neck (nasopharynx, oropharynx, larynx, hypopharynx, and oral cavity) treated with definitive chemoradiation...
April 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28369859/role-of-mucosal-high-risk-human-papillomavirus-types-in-head-and-neck-cancers-in-central-india
#15
Tarik Gheit, Devasena Anantharaman, Dana Holzinger, Laia Alemany, Sara Tous, Eric Lucas, Priya R Prabhu, Michael Pawlita, Ruediger Ridder, Susanne Rehm, Johannes Bogers, Fausto Maffini, Susanna Chiocca, Belén Lloveras, Rekha Vijay Kumar, Thara Somanathan, Silvia de Sanjosé, Xavier Castellsagué, Marc Arbyn, Paul Brennan, Rengaswamy Sankaranarayanan, Madhavan Radhakrishna Pillai, Nitin Gangane, Massimo Tommasino
Mucosal high-risk (HR) human papillomaviruses (HPV) cause a subset of head and neck cancers (HNC). The HPV-attributable fraction of HNC varies substantially between countries. Although HNC has a very high incidence in the Indian sub-continent, information on the contribution of HPV infection is limited. Here, we evaluated the HPV-attributable fraction in HNC (N=364) collected in a central region of India. HNC from three different anatomical subsites were included, namely oral cavity (n=252), oropharynx (n=53) and hypopharynx/larynx (n=59)...
March 29, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28367236/chemoradiotherapy-for-synchronous-multiple-primary-cancers-with-esophageal-squamous-cell-carcinoma-a-case-control-study
#16
Qi-Wen Li, Yu-Jia Zhu, Wen-Wen Zhang, Han Yang, Yao Liang, Yong-Hong Hu, Bo Qiu, Meng-Zhong Liu, Hui Liu
Objective: To evaluate the efficacy and toxicity of concurrent chemoradiotherapy (CRT) in multiple primary cancers (MPC) of the upper digestive tract in esophageal squamous cell carcinoma (ESCC). Methods: In a screening of 1193 consecutive patients diagnosed with ESCC and received radiotherapy, 53 patients presenting synchronous MPC in the upper digestive tract were retrospectively investigated. 53 consecutive patients with esophageal non-multiple primary cancer (NPC), matched by stage, age and sex, served as control...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28356934/a-malignant-inflammatory-myofibroblastic-tumor-of-the-hypopharynx-harboring-the-3a-b-variants-of-the-eml4-alk-fusion-gene
#17
Lucia Anna Muscarella, Giulio Rossi, Domenico Trombetta, Annamaria La Torre, Leonarda Di Candia, Maria Cecilia Mengoli, Angelo Sparaneo, Vito Michele Fazio, Paolo Graziano
Inflammatory myofibroblastic tumors (IMT) in the head and neck region are rare neoplasms that generally mimic benign/low-grade neoplasms. Overexpression of anaplastic lymphoma kinase (ALK) has been reported in 50% of IMT cases, secondary to ALK activation by structural rearrangements in the ALK gene, which results in a fusion protein with echinoderm microtubule associated protein like 4 (EML4) in ~20% of cases. The present study describes a case of a 74-year-old woman with a malignant IMT in the right posterior hypopharynx harboring a previously unreported chromosomal rearrangement resulting in EML4 and ALK gene fusion...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28351658/pharyngeal-airway-space-and-hyoid-bone-positioning-after-different-orthognathic-surgeries-in-skeletal-class-ii-patients
#18
Chunmiao Jiang, Yating Yi, Chunxiao Jiang, Shanbao Fang, Jun Wang
PURPOSE: To obtain good profiles, patients with severe skeletal Class II malocclusion require orthognathic surgery, which might change their airway space and, hence, influence their quality of sleep. The present study aimed to 1) determine the effect of different orthognathic surgeries on pharyngeal airway space and hyoid bone position in patients with skeletal Class II malocclusion and 2) evaluate the stability of changes in the pharyngeal airway space and hyoid bone position after orthognathic surgeries...
March 6, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28351561/salvage-surgery-in-recurrent-head-and-neck-squamous-cell-carcinoma-oncologic-outcome-and-predictors-of-disease-free-survival
#19
Marc Hamoir, Emma Holvoet, Jerôme Ambroise, Benoît Lengelé, Sandra Schmitz
OBJECTIVE: Salvage surgery in recurrent SCCHN is associated with poor outcomes. This study aimed to better identify suitable surgical candidates and those at high risk of new recurrence. MATERIALS AND METHODS: Single-center retrospective analysis of 109 patients undergoing salvage surgery for recurrent SCCHN. Univariate and multivariate analyses were used to identify prognostic factors affecting disease-free survival (DFS). RESULTS: The following factors showed a significant impact on DFS: Disease-free interval >6months [HR 0...
April 2017: Oral Oncology
https://www.readbyqxmd.com/read/28347482/robotics-in-sinus-and-skull-base-surgery
#20
REVIEW
Sanjeet Rangarajan, Ralph Abi Hachem, Enver Ozer, Andre Beer-Furlan, Daniel Prevedello, Ricardo L Carrau
Transoral robotic surgery (TORS) has been proven to be safe and to yield acceptable oncological and functional outcomes for surgery of the oropharynx, hypopharynx, supraglottis, and glottis. TORS has been successful at reducing morbidity, improving quality of life, and providing access to areas that previously required mandibulotomy or other more radical approaches in the past. This has changed the paradigm of management of tumors in these anatomic locations. In this article, the authors review the recent literature discussing the role of robotic surgery in managing sinonasal and skull base pathology and discuss its current advantages and limitations...
March 24, 2017: Otolaryngologic Clinics of North America
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