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https://www.readbyqxmd.com/read/28350545/reliability-of-dose-volume-constraint-inference-from-clinical-data
#1
C M Lutz, D S Møller, L Hoffmann, M M Knap, M Alber
Dose volume histogram points (DVHPs) frequently serve as dose constraints in radiotherapy treatment planning. An experiment was designed to investigate the reliability of DVHP inference from clinical data for multiple cohort sizes and complication incidence rates. The experimental background was radiation pneumonitis in non-small cell lung cancer and the DVHP inference method was based on logistic regression. From 102 NSCLC real-life dose distributions and a postulated DVHP model, an 'ideal' cohort was generated where the most predictive model was equal to the postulated model...
April 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28350485/ct-findings-radiologic-pathologic-correlation-and-imaging-predictors-of-survival-for-patients-with-interstitial-pneumonia-with-autoimmune-features
#2
Jonathan H Chung, Steven M Montner, Ayodeji Adegunsoye, Cathryn Lee, Justin M Oldham, Aliya N Husain, Heber MacMahon, Imre Noth, Rekha Vij, Mary E Strek
OBJECTIVE: The objective of this study is to determine the CT findings and patterns of interstitial pneumonia with autoimmune features (IPAF) and to assess whether imaging can predict survival for patients with IPAF. MATERIALS AND METHODS: The study included 136 subjects who met the criteria for IPAF and had diagnostic-quality chest CT scans obtained from 2006 to 2015; a total of 74 of these subjects had pathologic samples available for review within 1 year of chest CT examination...
March 28, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28339844/intensity-modulated-radiotherapy-using-two-static-ports-of-tomotherapy-for-breast-cancer-after-conservative-surgery-dosimetric-comparison-with-other-treatment-methods-and-3-year-clinical-results
#3
Aiko Nagai, Yuta Shibamoto, Masanori Yoshida, Koji Inoda, Yuzo Kikuchi
This study investigated the differences in dose-volume parameters for the breast and normal tissues during TomoDirectTM (TD) intensity-modulated radiation therapy (IMRT), TD-3D conformal radiotherapy (3DCRT) and 3DCRT plans, all using two beams, and analyzed treatment outcomes of two-beam TD-IMRT for breast cancer after breast-conserving surgery. Between August 2011 and January 2015, 152 patients were treated using two-beam TD-IMRT with 50 Gy/25 fractions. Among them, 20 patients with left-sided breast cancer were randomly chosen, and two-beam TD-IMRT, TD-3DCRT and 3DCRT plans were created for each patient...
February 23, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28339739/unabated-occupational-risk-in-a-patient-with-rheumatoid-pulmonary-fibrosis
#4
V K Holden, S J Kligerman, T G Hastings, S E Hines
Background: This case highlights the importance of considering hypersensitivity pneumonitis (HP) in the differential diagnosis of interstitial lung disease (ILD) and of obtaining an occupational history so that remediable risk factors may be identified and managed. Aims: To report a case of a chicken sexer with severe rheumatoid arthritis (RA) who developed progressively worsening dyspnoea and restrictive lung disease associated with pulmonary fibrosis. Methods: Clinical investigation included physical examination, occupational history, pulmonary function tests (PFTs), chest imaging and bronchoalveolar lavage (BAL), as well as serological tests including standard IgE bird feather mixture and local IgG precipitin preparation to chicken excrement...
February 23, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28334837/clinical-outcome-of-definitive-radiation-therapy-for-superficial-esophageal-cancer
#5
Yutaro Koide, Takeshi Kodaira, Hiroyuki Tachibana, Natsuo Tomita, Chiyoko Makita, Makoto Itoh, Tetsuya Abe, Kei Muro, Masahiro Tajika, Yasumasa Niwa, Yoshiyuki Itoh, Shinji Naganawa
Objective: To analyze the clinical outcome of concurrent chemoradiotherapy in superficial esophageal cancer patients. Methods: We retrospectively analyzed data for 123 patients with superficial esophageal cancer who received external beam radiotherapy without intracavitary brachytherapy plus systemic chemotherapy during 1998-2015. Elective nodal irradiation was not performed. The dosage to planning treatment volume was 60 Gy in 30 fractions. The main outcome measure was overall survival...
February 23, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28326428/impact-of-postoperative-compression-dressing-using-polyethylene-foam-pad-on-the-multimodal-protocol-for-swelling-control-following-total-knee-arthroplasty-a-randomized-controlled-trial
#6
Satomi Kayamori, Sachiyuki Tsukada, Masako Sato, Kenichi Komata, Yumiko Isida, Motohiro Wakui
BACKGROUND: The multimodal approach is commonly applied to improve knee swelling after total knee arthroplasty. Although the use of a knee compression pad may improve knee swelling, its impact in the multimodal protocol remains unclear. METHODS: A total of 57 knees were randomly assigned to one of 2 groups receiving treatment with either a compression dressing using a polyethylene foam pad designed to effectively compress the postoperative knee combined with an elastic bandage or a compression dressing with use of an elastic bandage only...
December 2016: Arthroplast Today
https://www.readbyqxmd.com/read/28325757/loss-of-cd73-prevents-accumulation-of-alternatively-activated-macrophages-and-the-formation-of-prefibrotic-macrophage-clusters-in-irradiated-lungs
#7
Simone de Leve, Florian Wirsdörfer, Federica Cappuccini, Alexandra Schütze, Alina V Meyer, Katharina Röck, Linda F Thompson, Jens W Fischer, Martin Stuschke, Verena Jendrossek
While radiotherapy is a mainstay for cancer therapy, pneumonitis and fibrosis constitute dose-limiting side effects of thorax and whole body irradiation. So far, the contribution of immune cells to disease progression is largely unknown. Here we studied the role of ecto-5'-nucelotidase (CD73)/adenosine-induced changes in the myeloid compartment in radiation-induced lung fibrosis. C57BL/6 wild-type or CD73(-/-) mice received a single dose of whole thorax irradiation (WTI, 15 Gy). Myeloid cells were characterized in flow cytometric, histologic, and immunohistochemical analyses as well as RNA analyses...
March 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28325725/amiodarone-induced-interstitial-pneumonitis
#8
Dinesh Chandra Voruganti, Linda Cadaret
No abstract text is available yet for this article.
March 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28323374/characteristics-of-short-stay-critical-care-admissions-from-emergency-departments-in-maryland
#9
Obiora O Chidi, Sarah M Perman, Adit A Ginde
OBJECTIVES: Critical care is an expensive and limited resource, and short stay critical care admissions may be treated in alternate, less costly settings. This study objective was to determine the proportion of critical care admissions with a short critical care length of stay and identify the clinical characteristics and diagnoses associated with high and low rates of short stay critical care admissions. METHODS: Secondary analysis of the 2011 Maryland State Inpatient Database...
March 21, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28322297/standardized-herbal-formula-pm014-inhibits-radiation-induced-pulmonary-inflammation-in-mice
#10
Jee-Youn Kim, Dasom Shin, Gihyun Lee, Jin-Mo Kim, Dongwook Kim, Yong-Min An, Byung Rok Yoo, Hanna Chang, Miran Kim, Jaeho Cho, Hyunsu Bae
Radiation therapy is widely used for thoracic cancers. However, it occasionally causes radiation-induced lung injuries, including pneumonitis and fibrosis. Chung-Sang-Bo-Ha-Tang (CSBHT) has been traditionally used to treat chronic pulmonary disease in Korea. PM014, a modified herbal formula derived from CSBHT, contains medicinal herbs of seven species. In our previous studies, PM014 exhibited anti-inflammatory effects in a chronic obstructive pulmonary disease model. In this study, we have evaluated the effects of PM014 on radiation-induced lung inflammation...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321088/drug-induced-interstitial-pneumonitis-in-essential-thrombocythemia-treated-with-anagrelide
#11
Tomohiro Kajiguchi, Sonoko Kamoshita, Takayasu Ito, Mitsuaki Yagi, Tomoki Kimura
Anagrelide, a phospholipase A2 inhibitor, is widely used in the management of essential thrombocythemia. To date, anagrelide has only rarely been reported to be associated with the development of drug-induced interstitial pneumonitis. We herein report two cases of anagrelide-associated interstitial pneumonitis. The patients were a 67-year-old woman and a 75-year-old man, both with essential thrombocythemia. Both cases developed interstitial pneumonitis at 8 weeks after administration of anagrelide. Because anagrelide-induced interstitial pneumonitis was suspected from CT scan and bronchoalveolar lavage fluid findings, anagrelide-therapy was discontinued and corticosteroid administration was initiated...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28316929/cytomegalovirus-pneumonitis-complicated-by-a-central-peribronchial-pattern-of-organising-pneumonia
#12
Maria M Cuadrado, Asia Ahmed, Ben Carpenter, Jeremy S Brown
We present five cases of cytomegalovirus (CMV) pneumonitis occurring in patients after recent T cell deplete allogeneic stem cell transplantation (AlloHSCT). These cases were complicated by an organising pneumonia (during the recovery period) with a predominantly central peribronchial pattern. All patients presented with evidence of active CMV pneumonitis which was treated successfully with anti-viral therapy but was followed by persistent severe dyspnoea, cough and hypoxia. High resolution computed tomography (HRCT) imaging showed widespread central peribronchial consolidation with traction bronchiectasis...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28314838/a-phase-i-study-of-abiraterone-acetate-combined-with-bez235-a-dual-pi3k-mtor-inhibitor-in-metastatic-castration-resistant-prostate-cancer
#13
Xiao X Wei, Andrew C Hsieh, Won Kim, Terence Friedlander, Amy M Lin, Mirela Louttit, Charles J Ryan
LESSONS LEARNED: The combination of standard dose abiraterone acetate and BEZ235, a pan-class I PI3K and mTORC1/2 inhibitor, was poorly tolerated in men with progressive mCRPC.Although the clinical development of BEZ235 has been discontinued in prostate cancer, agents that more selectively target PI3K-AKT-mTOR signaling may have a more favorable therapeutic index and should continue to be explored. BACKGROUND: Androgen receptor (AR) and phosphatidylinositol-3 kinase (PI3K) signaling are two commonly perturbed pathways in prostate cancer...
March 17, 2017: Oncologist
https://www.readbyqxmd.com/read/28314468/constraints-for-symptomatic-radiation-pneumonitis-of-helical-tomotherapy-hypofractionated-simultaneous-multitarget-radiotherapy-for-pulmonary-metastasis-from-hepatocellular-carcinoma
#14
Genlai Lin, Han Xiao, Zhaochong Zeng, Zhiyong Xu, Jian He, Taiwei Sun, Jin Liu, Genwu Guo, Weixing Ji, Yong Hu
BACKGROUND AND PURPOSE: This study was aimed to identify the clinical and dosimetric parameters that predict symptomatic radiation pneumonitis (SRP, radiation pneumonitis≥2 grade) in patients with pulmonary metastasis from hepatocellular carcinoma (HCC) after helical tomotherapy (HT) hypofractionated simultaneous multitarget radiotherapy. MATERIALS AND METHODS: 62 patients with 407 pulmonary metastases from HCC were consecutively treated with HT. The median radiation dose was a 49...
March 14, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28303763/case-report-of-nivolumab-related-pneumonitis
#15
Kohei Tada, Yasuyuki Kurihara, Tomohiro Myojo, Fumitsugu Kojima, Yuya Ishikawa, Nobuyuki Yoshiyasu, Masaya Morimoto, Reiko Ito, Ryosuke Koyamada, Takuya Yamashita, Toru Bando, Shinichiro Mori, Yuji Heike
We report a case with suggestive antiprogrammed death-1 inhibitor-related pneumonitis in an endometrial cancer patient. This case presented with fever and cough after three dosages of nivolumab. Computed tomography initially showed centrilobular nodularities in a unilateral lung, which was compatible with aspiration pneumonia. However, diffuse ground-glass opacities (GGO) rapidly developed in the unilateral lung over 4 days despite the use of broad-spectrum antibiotics. Development of GGO was considered to be related to a nivolumab-mediated immune reaction...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28301552/radiological-characteristics-of-pulmonary-cryptococcosis-in-hiv-infected-patients
#16
Zhiliang Hu, Jun Chen, Juan Wang, Qingfang Xiong, Yandan Zhong, Yongfeng Yang, Chuanjun Xu, Hongxia Wei
BACKGROUND: Current understanding of human immunodeficiency virus (HIV)-associated pulmonary cryptococcosis (PC) is largely based on studies performed about 2 decades ago which reported that the most common findings on chest radiograph were diffuse interstitial infiltrates. Few studies are available regarding the computed tomography (CT) findings. The aim of this study was to characterize chest CT features of HIV-associated PC. METHODS: HIV patients with cryptococccal infection and pulmonary abnormalities on Chest CT between September 2010 and May 2016 in the Second Affiliated Hospital of the Southeast University were retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28300574/sex-steroid-receptor-expression-in-idiopathic-pulmonary-fibrosis
#17
Mitra Mehrad, Humberto E Trejo Bittar, Samuel A Yousem
Usual interstitial pneumonia (UIP) is characterized by progressive scarring of the lungs and is associated with high morbidity and mortality despite therapeutic interventions. Sex steroid receptors have been demonstrated to play an important role in chronic lung conditions; however, their significance is unknown in patients with UIP. We retrospectively reviewed 40 idiopathic UIP cases for the expression of hormonal receptors. Forty cases including 10 normal lung, 10 cryptogenic organizing pneumonia (COP), 10 idiopathic organizing diffuse alveolar damage (DAD), 7 hypersensitivity pneumonitis (HP) and 3 nonspecific interstitial pneumonitis (NSIP) served as controls...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28300553/neutrophil-elastase-inhibitor-sivelestat-ameliorates-gefitinib-naphthalene-induced-acute-pneumonitis-in-mice
#18
Hironori Mikumo, Toyoshi Yanagihara, Naoki Hamada, Eiji Harada, Saiko Ogata-Suetsugu, Chika Ikeda-Harada, Masako Arimura-Omori, Kunihiro Suzuki, Testuya Yokoyama, Yoichi Nakanishi
Gefitinib, an epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI), is an effective therapeutic agent for non-small cell lung cancer with EGFR mutations. It can cause severe acute pneumonitis in some patients. We previously demonstrated that mice with naphthalene-induced airway epithelial injury developed severe gefitinib-induced pneumonitis and that neutrophils played important roles in the development of the disease. This study aimed to investigate the effects of the neutrophil elastase inhibitor sivelestat on gefitinib-induced pneumonitis in mice...
April 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28297158/unclassifiable-interstitial-lung-diseases-clinical-characteristics-and-survival
#19
Charlotte Hyldgaard, Elisabeth Bendstrup, Athol U Wells, Ole Hilberg
BACKGROUND AND OBJECTIVE: Unclassifiable disease in chronic interstitial lung disease (ILD) is a common and challenging problem but has been insufficiently studied. The 2013 update of the international multidisciplinary classification of the idiopathic interstitial pneumonias presented a classification based on observed disease behaviour with the purpose of providing guidance to clinicians in the management of these patients. The aim of this study was to apply the new disease behaviour classification (DBC) and the previously validated ILD-gender age physiology (GAP) score to a cohort of unclassifiable ILD patients and to assess the prognostic value of these two composite approaches...
April 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28296271/genome-characterization-of-a-porcine-circovirus-type-3-in-south-china
#20
H Shen, X Liu, P Zhang, L Wang, Y Liu, L Zhang, P Liang, C Song
Porcine circovirus type 3 (PCV3) is a novel circovirus that was associated with porcine dermatitis and nephropathy syndrome, reproductive failure, and multisystemic inflammation. Recently, a PCV3 strain was identified from pyretic and pneumonic piglets in Guangdong province, China. This virus strain was sequenced and designated PCV3-China/GD2016. The complete genome of PCV3-China/GD2016 is 2,000 bp in length and shared 98.5% and 97.4% nucleotide identities with PCV3/29160 and PCV3/2164, respectively. Phylogenetic analysis based on the complete genome showed that PCV3-China/GD2016 clustered with the emerging PCV3 and separated with other virus in genus Circovirus...
March 13, 2017: Transboundary and Emerging Diseases
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