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https://www.readbyqxmd.com/read/29334555/multi-institutional-analysis-of-recurrence-and-survival-after-neoadjuvant-chemoradiotherapy-of-esophageal-cancer-impact-of-histology-on-recurrence-patterns-and-outcomes
#1
Mian Xi, Yadi Yang, Li Zhang, Hong Yang, Kenneth W Merrell, Christopher L Hallemeier, Robert K Shen, Michael G Haddock, Wayne L Hofstetter, Dipen M Maru, Linus Ho, Carol C Wu, Mengzhong Liu, Steven H Lin
OBJECTIVE: To determine the impact of histology on pathologic response, survival outcomes, and recurrence patterns in patients with esophageal cancer (EC) who received neoadjuvant chemoradiotherapy (CRT). SUMMARY OF BACKGROUND DATA: There is a paucity of data regarding comparative outcomes after neoadjuvant CRT between esophageal squamous cell carcinoma (SCC) and adenocarcinoma. METHODS: Between 2002 and 2015, 895 EC patients who underwent neoadjuvant CRT followed by esophagectomy at 3 academic institutions were retrospectively reviewed, including 207 patients with SCC (23...
January 12, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29332339/p21-does-but-p53-does-not-predict-pathological-response-to-preoperative-chemoradiotherapy-in-locally-advanced-rectal-cancer
#2
Suzana Stojanovic-Rundic, Radmila Jankovic, Marjan Micev, Vladimir Nikolic, Ivan Popov, Dusica Gavrilovic, Vesna Plesinac-Karapandzic, Aleksandra Djuric-Stefanovic, Zoran Krivokapic, Sinisa Radulovic
PURPOSE: Preoperative chemoradiotherapy (CRT) is the standard treatment option in locally advanced rectal cancer. The tumor response is assessed through tumor and nodal downstaging and the tumor regression grade. Currently, there is no method to predict a tumor response to CRT. We aimed to evaluate whether p21 and p53 expressions could be a reliable predictors of pathological response to CRT. METHODS: Fifty patients with locally advanced rectal cancer were treated with preoperative radiotherapy combined with mitomycin C and capecitabine...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332248/performance-of-diffusion-weighted-magnetic-resonance-imaging-at-3-0t-for-early-assessment-of-tumor-response-in-locally-advanced-rectal-cancer-treated-with-preoperative-chemoradiation-therapy
#3
Andrea Delli Pizzi, Roberta Cianci, Domenico Genovesi, Gianluigi Esposito, Mauro Timpani, Alessandra Tavoletta, Pierluigi Pulsone, Raffaella Basilico, Daniela Gabrielli, Consuelo Rosa, Luciana Caravatta, Monica Di Tommaso, Massimo Caulo, Antonella Filippone
PURPOSE: The purpose of the article is to determine whether changes in apparent diffusion coefficient (ADC) values of locally advanced rectal cancer (LARC) obtained 2 weeks after the beginning of chemoradiation therapy (CRT) allow to predict treatment response and whether correlate with tumor histopathologic response. METHODS: Forty-three patients receiving CRT for LARC and 3.0T magnetic resonance imaging with diffusion-weighted sequences before treatment, 2 weeks during, and 8 weeks post the completion of CRT were included...
January 13, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29329660/cochlea-ct-radiomics-predicts-chemoradiotherapy-induced-sensorineural-hearing-loss-in-head-and-neck-cancer-patients-a-machine-learning-and-multi-variable-modelling-study
#4
Hamid Abdollahi, Shayan Mostafaei, Susan Cheraghi, Isaac Shiri, Seied Rabi Mahdavi, Anoshirvan Kazemnejad
OBJECTIVES: Immediately or after head-and-neck (H&N) cancer chemoradiotherapy (CRT), patients may undergone significant sensorineural hearing loss (SNHL) which could affect their quality of life. Radiomic feature analysis is proposed to predict SNHL induced by CRT. MATERIAL AND METHODS: 490 image features of 94 cochlea from 47 patients treated with three dimensional conformal RT (3DCRT) for different H&N cancers were extracted from CT images. Different machine learning (ML) algorithms and also least absolute shrinkage and selection operator (LASSO) penalized logistic regression were implemented on radiomic features for feature selection, classification and prediction...
January 9, 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29329157/smad4-loss-correlates-with-higher-rates-of-local-and-distant-failure-in-pancreatic-adenocarcinoma-patients-receiving-adjuvant-chemoradiation
#5
Joseph M Herman, Salma K Jabbour, Steven H Lin, Matthew P Deek, Charles C Hsu, Elliot K Fishman, Sinae Kim, John L Cameron, Marina Chekmareva, Daniel A Laheru, Amol K Narang, Timothy M Pawlik, Ralph H Hruban, Christopher L Wolfgang, Christine A Iacobuzio-Donahue
OBJECTIVES: The tumor suppressor gene SMAD4 (DPC4) is genetically inactivated in approximately half of pancreatic ductal adenocarcinomas (PDAs). We examined whether Smad4 tumor status was associated with outcomes after adjuvant chemoradiation (CRT) for resected PDAs. METHODS: Patients treated with adjuvant CRT were identified (N = 145). Smad4 status was determined by immunolabeling and graded as intact or lost. Kaplan-Meier method and multivariable competing risk analyses were performed...
January 12, 2018: Pancreas
https://www.readbyqxmd.com/read/29328976/pattern-of-programmed-cell-death-ligand-1-expression-and-cd8-positive-t-cell-infiltration-before-and-after-chemoradiotherapy-in-rectal-cancer
#6
Atsushi Ogura, Takashi Akiyoshi, Noriko Yamamoto, Hiroshi Kawachi, Yuichi Ishikawa, Seiichi Mori, Koji Oba, Masato Nagino, Yosuke Fukunaga, Masashi Ueno
BACKGROUND: The synergistic effect of combining immune checkpoint inhibitors with radiotherapy was reported recently, but there are few studies on programmed cell death-ligand 1 (PD-L1) expression in rectal cancer treated by preoperative chemoradiotherapy (CRT). The aim of the present study was to investigate the PD-L1 expression status before and after CRT and its association with clinicopathological characteristics and recurrence in rectal cancer. METHODS: Immunostainings of PD-L1 and CD8 were performed in 287 patients with rectal cancer treated by CRT...
January 9, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29327314/computational-modeling-for-cardiac-resynchronization-therapy
#7
Angela W C Lee, Caroline Mendonca Costa, Marina Strocchi, Christopher A Rinaldi, Steven A Niederer
Cardiac resynchronization therapy (CRT) is an effective treatment for heart failure (HF) patients with an electrical substrate pathology causing ventricular dyssynchrony. However 40-50% of patients do not respond to treatment. Cardiac modeling of the electrophysiology, electromechanics, and hemodynamics of the heart has been used to study mechanisms behind HF pathology and CRT response. Recently, multi-scale dyssynchronous HF models have been used to study optimal device settings and optimal lead locations, investigate the underlying cardiac pathophysiology, as well as investigate emerging technologies proposed to treat cardiac dyssynchrony...
January 11, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29327180/chemotherapy-with-or-without-definitive-radiation-therapy-in-inoperable-pancreatic-cancer
#8
Jim Zhong, Jeffrey Switchenko, Madhusmita Behera, David Kooby, Shishir K Maithel, Mark W McDonald, Jolinta Y Lin, Richard J Cassidy, Bassel El-Rayes, Jerome Landry, Pretesh R Patel
BACKGROUND: The LAP07 randomized trial calls into question the role of radiation therapy (RT) in the modern treatment of locally advanced pancreatic cancer (LAPC). However, advances in chemotherapy and RT limit application of the LAP07 results to current clinical practice. Here we utilize the National Cancer Database (NCDB) to evaluate the effects of RT in patients receiving chemotherapy for LAPC. METHODS: Using the NCDB, patients with American Joint Committee on Cancer (AJCC) clinical stage T2-4, N0-1, M0 adenocarcinoma of the pancreas from 2004 to 2014 were analyzed...
January 11, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29326129/machine-learning-algorithm-predicts-cardiac-resynchronization-therapy-outcomes-lessons-from-the-companion-trial
#9
Matthew M Kalscheur, Ryan T Kipp, Matthew C Tattersall, Chaoqun Mei, Kevin A Buhr, David L DeMets, Michael E Field, Lee L Eckhardt, C David Page
BACKGROUND: Cardiac resynchronization therapy (CRT) reduces morbidity and mortality in heart failure patients with reduced left ventricular function and intraventricular conduction delay. However, individual outcomes vary significantly. This study sought to use a machine learning algorithm to develop a model to predict outcomes after CRT. METHODS AND RESULTS: Models were developed with machine learning algorithms to predict all-cause mortality or heart failure hospitalization at 12 months post-CRT in the COMPANION trial (Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure)...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29324755/hiv-1-co-receptor-tropism-and-liver-fibrosis-in-hiv-infected-patients
#10
Annalisa Saracino, Alessandro Cozzi-Lepri, Milensu Shanyinde, Francesca Ceccherini Silberstein, Silvia Nozza, Antonio Di Biagio, Giovanni Cassola, Giuseppe Bruno, Maria Capobianchi, Massimo Puoti, Laura Monno, Antonella d'Arminio Monforte
BACKGROUND: In vitro, gp120 of both X4 and R5 HIV-1 strains activates human hepatic stellate cells, but if it can promote liver fibrosis in vivo is unknown. We aimed to evaluate if patients carrying X4 or R5 strains have a different liver fibrosis (LF) progression over time. METHODS: A total of 1,137 HIV-infected patients in ICONA cohort (21% females, 7% HCV co-infected) with an available determination of HIV-1 co-receptor tropism (CRT), a Fibrosis-4 Index for Liver Fibrosis (FIB-4) <3...
2018: PloS One
https://www.readbyqxmd.com/read/29324061/the-prediction-of-deterioration-of-nutritional-status-during-chemoradiation-therapy-in-patients-with-esophageal-cancer
#11
Sofia C M Rietveld, Jill E Witvliet-van Nierop, Karen Ottens-Oussoren, Donald L van der Peet, Marian A E de van der Schueren
Patients with esophageal cancer are at high risk of developing malnutrition during neoadjuvant chemoradiation therapy (CRT), which in turn is associated with postoperative morbidity. The aim of the study is to explore whether parameters of a complete pre-treatment nutritional status may predict deterioration of nutritional status during CRT in patients with esophageal cancer. In this prospective cohort study, 101 patients with esophageal cancer treated with CRT were included. Data of patient characteristics, tumor classification, performance score, %weight change, body mass index, fat (free) mass index, phase angle, handgrip strength, energy- and protein intake, and use of (additional) dietary supplements were collected...
January 11, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29322798/pd-l1-expression-can-be-regarded-as-prognostic-factor-for-survival-of-non-small-cell-lung-cancer-patients-after-chemoradiotherapy
#12
M Vrankar, M Zwitter, I Kern, K Stanic
Inoperable locally advanced non-small cell lung cancer (LA NSCLC) is treated with concurrent or sequential chemotherapy (ChT) and radiation therapy (RT). Survival rates with this treatment remains poor, reported 5-year survival is about 15%. New treatment strategies, including immunotherapy with programmed death ligand-1 (PD-L1) check point inhibitors are being investigated. The clinical significance of PD-L1 expression in tumor samples from patients with inoperable LA NSCLC who underwent concurrent chemoradiotherapy (CRT) in our institution between 2005 and 2010 was evaluated...
2018: Neoplasma
https://www.readbyqxmd.com/read/29320931/physician-decision-making-in-anticoagulating-atrial-fibrillation-a-prospective-survey-of-a-physician-notification-system-for-atrial-fibrillation-detected-on-cardiac-implantable-electronic-devices-of-patients-at-increased-risk-of-stroke
#13
Justin M Cloutier, Clarence Khoo, Brett Hiebert, Anthony Wassef, Colette M Seifer
OBJECTIVES: The objectives of this study were to evaluate the effectiveness of a physician notification system for atrial fibrillation (AF) detected on cardiac devices, and to assess predictors of anticoagulation in patients with device-detected AF. METHODS: In 2013, a physician notification system for AF detected on a patient's CIED [including pacemakers, implantable cardioverter defibrillators (ICD) or cardiac resynchronization therapy (CRT) devices] was implemented, with a recommendation to consider oral anticoagulation in high-risk patients...
January 1, 2018: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/29320170/synthesis-and-characterization-of-the-most-active-copper-atrp-catalyst-based-on-tris-4-dimethylaminopyridyl-methyl-amine
#14
Thomas G Ribelli, Marco Fantin, Jean-Claude Daran, Kyle F Augustine, Rinaldo Poli, Krzysztof Matyjaszewski
The synthesis and characterization of tris[(4-dimethylaminopyridyl)methyl]amine (TPMANMe2) as a ligand for copper catalyzed atom transfer radical polymerization (ATRP) is reported. In solution, the [CuI(TPMANMe2)Br] complex shows fluxionality by variable temperature NMR, indicating rapid ligand exchange. In the solid-state, the [CuII(TPMANMe2)Br][Br] complex exhibits a slightly distorted trigonal bipyramidal geometry (τ = 0.89). The UV-Vis spectrum of [CuII(TPMANMe2)Br]+ salts is similar to those of other pyridine-based ATRP catalysts...
January 10, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29315719/oversensing-of-transthoracic-excitation-stimuli-in-contemporary-pacemakers
#15
James D Ryan, Nathan D Tempel, Dean D Engle, David L Hayes, Yong-Mei Cha, Samuel J Asirvatham
BACKGROUND: Transthoracic impedance measurements (TIM) is primarily used for minute ventilation (MV) rate adaptive sensors in pacemakers. With elevated impedance the TIM electrical signal itself is oversensed causing device malfunction. OBJECTIVE: We report an increased incidence of TIM oversensing. METHOD: Retrospective chart review. We review existing records of 18 patients who have demonstrated device malfunction with TIM oversensing. RESULTS: We have found a 1...
January 5, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29315497/health-care-disparities-among-octogenarians-and-nonagenarians-with-stage-iii-lung-cancer
#16
Richard J Cassidy, Xinyan Zhang, Jeffrey M Switchenko, Pretesh R Patel, Joseph W Shelton, Sibo Tian, Ronica H Nanda, Conor E Steuer, Rathi N Pillai, Taofeek K Owonikoko, Suresh S Ramalingam, Felix G Fernandez, Seth D Force, Theresa W Gillespie, Walter J Curran, Kristin A Higgins
BACKGROUND: To the authors' knowledge, the practice patterns for patients aged more than 80 years with stage III non-small cell lung cancer (NSCLC) is not well known. The purpose of the current study was to investigate factors predictive of and the impact on overall survival (OS) after concurrent chemoradiation (CRT) among patients aged ≥80 years with American Joint Committee on Cancer stage III NSCLC in the National Cancer Data Base (NCDB). METHODS: In the NCDB, patients aged ≥80 years who were diagnosed with stage III NSCLC from 2004 to 2013 with complete treatment records were identified...
January 8, 2018: Cancer
https://www.readbyqxmd.com/read/29315424/cardiac-resynchronization-therapy-in-patients-with-end-stage-hypertrophic-cardiomyopathy
#17
Ammar M Killu, Jae-Yoon Park, Jaskanwal D Sara, David O Hodge, Bernard J Gersh, Rick A Nishimura, Samuel J Asirvatham, Christopher J McLeod
Aims: A dilated/end-stage phase of hypertrophic cardiomyopathy (HCM) is rare but well-recognized. The role for cardiac resynchronization therapy (CRT) in this subset of patients remains unexplored. We aimed to clarify the impact of bi-ventricular pacing CRT in dilated/end-stage HCM. Methods and results: The Mayo Clinic HCM database was interrogated to identify patients with ejection fraction (EF) <50% and CRT. Control subjects were identified in 1:1 manner...
January 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29314424/the-interaction-of-sex-height-and-qrs-duration-on-the-effects-of-cardiac-resynchronization-therapy-on-morbidity-and-mortality-an-individual-patient-data-meta-analysis
#18
Cecilia Linde, John G F Cleland, Michael R Gold, J Claude Daubert, Anthony S L Tang, James B Young, Lou Sherfesee, William T Abraham
AIMS: To explore possible associations that may explain the greater benefit from cardiac resynchronization therapy (CRT) reported amongst women. METHODS AND RESULTS: In an individual-patient data meta-analysis of five randomized controlled trials, all-cause mortality and the composite of all-cause mortality or first hospitalization for heart failure (HF) were compared among 794 women and 2702 men assigned to CRT or a control group. Multivariable analyses were performed to assess the impact of sex, QRS duration, HF aetiology, left ventricular end-diastolic diameter (LVEDD), and height on outcome...
January 4, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29314085/new-onset-left-bundle-branch-block-associated-idiopathic-nonischemic-cardiomyopathy-and-time-from-diagnosis-to-cardiac-resynchronization-therapy-the-neolith-ii-study
#19
Norman C Wang, Jack Z Li, Evan C Adelstein, Andrew D Althouse, Michael S Sharbaugh, Sandeep K Jain, G Stuart Mendenhall, Alaa A Shalaby, Andrew H Voigt, Samir Saba
BACKGROUND: The optimal timing for cardiac resynchronization therapy (CRT) after diagnosis of new-onset left bundle branch block (LBBB)-associated idiopathic nonischemic cardiomyopathy (NICM) and treatment with guideline-directed medical therapy (GDMT) is unknown. The purpose of this study was to describe relationships between time from diagnosis to CRT and outcomes in new-onset LBBB-associated idiopathic NICM with LVEF ≤35%. METHODS: A retrospective cohort study examined associations between time from diagnosis to CRT (≤9 months versus > 9 months) and clinical and echocardiographic outcomes...
January 4, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29313187/allelic-variants-of-ossub1a-cause-differential-expression-of-transcription-factor-genes-in-response-to-submergence-in-rice
#20
Niharika Sharma, Trang Minh Dang, Namrata Singh, Slobodan Ruzicic, Bernd Mueller-Roeber, Ute Baumann, Sigrid Heuer
BACKGROUND: Flooding during seasonal monsoons affects millions of hectares of rice-cultivated areas across Asia. Submerged rice plants die within a week due to lack of oxygen, light and excessive elongation growth to escape the water. Submergence tolerance was first reported in an aus-type rice landrace, FR13A, and the ethylene-responsive transcription factor (TF) gene SUB1A-1 was identified as the major tolerance gene. Intolerant rice varieties generally lack the SUB1A gene but some intermediate tolerant varieties, such as IR64, carry the allelic variant SUB1A-2...
January 8, 2018: Rice
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