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Statistics in Oncology

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https://www.readbyqxmd.com/read/28092685/precision-oncology-for-acute-myeloid-leukemia-using-a-knowledge-bank-approach
#1
Moritz Gerstung, Elli Papaemmanuil, Inigo Martincorena, Lars Bullinger, Verena I Gaidzik, Peter Paschka, Michael Heuser, Felicitas Thol, Niccolo Bolli, Peter Ganly, Arnold Ganser, Ultan McDermott, Konstanze Döhner, Richard F Schlenk, Hartmut Döhner, Peter J Campbell
Underpinning the vision of precision medicine is the concept that causative mutations in a patient's cancer drive its biology and, by extension, its clinical features and treatment response. However, considerable between-patient heterogeneity in driver mutations complicates evidence-based personalization of cancer care. Here, by reanalyzing data from 1,540 patients with acute myeloid leukemia (AML), we explore how large knowledge banks of matched genomic-clinical data can support clinical decision-making. Inclusive, multistage statistical models accurately predicted likelihoods of remission, relapse and mortality, which were validated using data from independent patients in The Cancer Genome Atlas...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28079776/enhanced-recovery-program-and-length-of-stay-after-laparotomy-on-a-gynecologic-oncology-service-a-randomized-controlled-trial
#2
Elizabeth L Dickson, Erica Stockwell, Melissa A Geller, Rachel Isaksson Vogel, Sally A Mullany, Rahel Ghebre, Boris J N Witherhoff, Levi S Downs, Linda F Carson, Deanna Teoh, Michelle Glasgow, Matt Gerber, Colleen Rivard, Britt K Erickson, Jacob Hutchins, Peter A Argenta
OBJECTIVE: To estimate whether a rapid recovery program would reduce length of stay among patients undergoing laparotomy on a gynecologic oncology service. METHODS: We conducted a prospective, randomized, controlled trial comparing an enhanced recovery after surgery protocol with routine postoperative care among women undergoing laparotomy on the gynecologic oncology service. Protocol elements included: preoperative counseling, regional anesthesia, intraoperative fluid restriction, and early postoperative ambulation and feeding...
January 9, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28078465/non-inferiority-of-minimally-invasive-oesophagectomy-an-8-year-retrospective-case-series
#3
L Findlay, C Yao, D H Bennett, R Byrom, N Davies
BACKGROUND: The trend towards laparoscopic surgery seen in other specialties has not occurred at the same pace in oesophagectomy. This stems from concerns regarding compromised oncological clearance, and complications associated with gastric tube necrosis and anastomotic failure. We present our experience of minimally invasive oesophagectomy (MIO) compared to open and hybrid surgery. We aim to ascertain non-inferiority of MIO by evaluating impact on survival, oncological clearance by resection margin and lymph node harvest and post-operative complications...
January 11, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28075197/validation-of-an-established-prognostic-score-after-re-irradiation-of-recurrent-glioma
#4
Kerstin A Kessel, Josefine Hesse, Christoph Straube, Claus Zimmer, Friederike Schmidt-Graf, Jürgen Schlegel, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Re-irradiation (Re-RT) is offered widely in clinical routine, and has been established as a key element in the treatment of recurrent gliomas. At our center, generally re-resection is performed widely by an experienced neurosurgical team. Thus, Re-RT mostly offered to patients with macroscopic residuals or irresectable lesions, is applied later compared to other centers. Therefore, we sought to validate the Combs Prognostic Score developed in 2012 using our independent patient cohort...
January 11, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28072917/a-provider-based-survey-to-assess-bereavement-care-knowledge-attitudes-and-practices-in-pediatric-oncologists
#5
Jasmin Jensen, Cindy Weng, Holly L Spraker-Perlman
BACKGROUND: Bereavement support is a core tenet of palliative care that may prove difficult for clinicians as it is time-consuming, emotionally charged, and not emphasized in pediatrics training. This project is intended to describe the opinions, knowledge, and practice of bereavement care among pediatric oncologists to identify gaps in clinical care. PROCEDURES: An internet-based survey instrument was pilot tested, refined, and distributed to pediatric oncologists in the United States...
January 10, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28069156/effectiveness-of-a-relaxation-intervention-progressive-muscle-relaxation-and-guided-imagery-techniques-to-reduce-anxiety-and-improve-mood-of-parents-of-hospitalized-children-with-malignancies-a-randomized-controlled-trial-in-republic-of-cyprus-and-greece
#6
Theologia Tsitsi, Andreas Charalambous, Evridiki Papastavrou, Vasilios Raftopoulos
PURPOSE: To explore the effect of Progressive Muscle Relaxation (PMR) and Guided Imagery (GI),in reducing anxiety levels among parents of children diagnosed with any type of malignancy receiving active treatment at a Paediatric Oncology Unit in Republic of Cyprus and in Greece. METHOD: A randomized non-blinded control trial was conducted between April 2012 to October 2013, at two public paediatric hospitals. Fifty four eligible parents of children hospitalized with a malignancy were randomly assigned to the intervention (PMR and GI) (n = 29) and a control group (n = 25)...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28069084/transoral-laser-resection-of-glottic-carcinoma-what-is-the-significance-of-anterior-commissure-involvement
#7
K A Stephenson, J J Fagan
BACKGROUND: The optimal management of glottic carcinoma involving the anterior commissure is controversial. METHOD: A retrospective analysis was conducted of 76 patients with glottic squamous cell carcinoma treated by transoral carbon dioxide laser resection by a single surgeon. RESULTS: Sixty-three patients (with tumour stage Tis-T3) were eligible for inclusion. Thirty patients had involvement of the anterior commissure; these patients were significantly more likely to have either uncertain or positive margins (63...
January 10, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28068605/questionnaire-to-assess-quality-of-life-in-patients-with-breast-cancer-validation-of-the-chinese-version-of-the-eortc-qlq-br-53
#8
Zhen Zhang, Xian Zhang, Ling Wei, Yunshou Lin, Dongwen Wu, Shumin Xie, Lin Yue, Jingru Tian, Yu Zhang, Qijun Song, Stephenie Mu-Lian Woo, Adam R Miller, Le Luo, Lei Zhang
PURPOSE: To evaluate the reliability and validity of the Chinese version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Breast Cancer (EORTC QLQ-BR53) questionnaire firstly in north of China. METHODS: A total of 294 outpatients with breast cancer in Tianjin Cancer Institution and Hospital from November 2014 to August 2015 were enrolled in this study. All patients self-administered the EORTC QLQ-BR25 and the Short Form 36 Health Survey (SF-36)...
January 6, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28066627/survival-analyses-in-lung-cancer
#9
EDITORIAL
Kari Chansky, Dragan Subotic, Nathan R Foster, Torsten Blum
BACKGROUND: Although survival analyses represent one of the cornerstones in oncology in general, some aspects of the reported survival data in lung cancer patients are still not fully elucidated. METHODS: After having defined several open questions, an evidence based approach was applied in order to answer these questions. Areas of interest were: (I) possible uncertainties in reported survival data; (II) survival surrogates; (III) recommended methods for evaluating progression free survival (PFS) as a surrogate endpoint in future datasets; (IV) postoperative lung cancer recurrence and survival...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28061517/supraclavicular-flap-reconstruction-of-cutaneous-defects-has-lower-complication-rate-than-mucosal-defects
#10
Sameep Kadakia, Jay Agarwal, Moustafa Mourad, Sara Ashai, Thomas Lee, Yadranko Ducic
Background The objective of this study was to determine whether there was a difference in complication rate between cutaneous and mucosal defects reconstructed with the supraclavicular artery flap. Methods Retrospective review of postoperative complications in 63 patients from 2008 to 2015 with cutaneous and mucosal head and neck defects following oncologic ablation reconstructed with the supraclavicular flap, with a minimum follow-up duration of 6 months. Of the 63 patients, 38 patients had cutaneous defects, whereas 25 had mucosal defects...
January 6, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28061037/single-port-laparoscopic-surgery-can-be-performed-safely-and-appropriately-for-colon-cancer-short-term-results-of-a-pilot-randomized-controlled-trial
#11
Byung Mo Kang, Sun Jin Park, Kil Yeon Lee, Suk-Hwan Lee
INTRODUCTION: Single-port laparoscopic surgery (SPLS) has gained popularity due to its cosmetic benefit, and therefore, has been applied to several kinds of benign operations, such as appendectomy and cholecystectomy. The safety and suitability of SPLS for colon cancer has not been widely proved. We aimed at validating the safety, efficacy, and short-term quality of life (QOL) of SPLS compared with conventional laparoscopic surgery (CLS) in patients with colon cancer. MATERIALS AND METHODS: Between June 2010 and April 2011, a total of 62 patients with pathology-proven colon cancer were randomly allocated to two groups: SPLS and CLS...
January 6, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28056911/prospective-cohort-study-of-procalcitonin-levels-in-children-with-cancer-presenting-with-febrile-neutropenia
#12
Victoria Hemming, Adam D Jakes, Geoff Shenton, Bob Phillips
BACKGROUND: Febrile neutropenia (FNP) causes significant morbidity and mortality in children undergoing treatment for cancer. The development of clinical decision rules to help stratify risks in paediatric FNP patients and the use of inflammatory biomarkers to identify high risk patients is an area of recent research. This study aimed to assess if procalcitonin (PCT) levels could be used to help diagnose or exclude severe infection in children with cancer who present with febrile neutropenia, both as a single measurement and in addition to previously developed clinical decision rules...
January 5, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28050393/metronomic-chemotherapy-seems-prowess-to-battle-against-cancer-in-current-scenario
#13
Prema Muthusamy, Krishnan Vengadaragava Chary, G K Nalini
INTRODUCTION: Metronomic chemotherapy is an emerging method of chemotherapy. Metronomic 'lowdose' chemotherapy regimen induces tumour dormancy and reduces cancer resistance against anticancer drugs. It tends to improve overall success rate of cancer chemotherapy than conventional cyclical regimen. AIM: The aim of this systemic review was to provide comprehensive data of metronomic chemotherapy trials, regimens used and it's outcome in cancer therapeutics. MATERIALS AND METHODS: Fifty chemotherapy trial data were searched sequentially from web...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050148/a-retrospective-analysis-of-the-role-of-proton-pump-inhibitors-in-colorectal-cancer-disease-survival
#14
C Graham, C Orr, C S Bricks, W M Hopman, N Hammad, R Ramjeesingh
BACKGROUND: Proton pump inhibitors (ppis) are a commonly used medication. A limited number of studies have identified a weak-to-moderate association between ppi use and colorectal cancer (crc) risk, but none to date have identified an effect of ppi use on crc survival. We therefore postulated that an association between ppi use and crc survival might potentially exist. METHODS: We performed a retrospective chart review of 1304 crc patients diagnosed from January 2005 to December 2011 and treated at the Cancer Centre of Southeastern Ontario...
December 2016: Current Oncology
https://www.readbyqxmd.com/read/28049604/evaluating-tumour-after-care-in-oral-squamous-cell-carcinoma-insights-into-patients-health-related-quality-of-life
#15
Oliver Bissinger, Andrea Rau, Steffen Koerdt, Klaus-Dietrich Wolff, Marco Rainer Kesting, Carolin Götz
INTRODUCTION: Tumour aftercare (tac) is an essential tool in oncology. The main aim of these follow ups is to diagnose recurrence and second tumours from the beginning. Tac appointments can create a special environment for patients' further concerns. The purpose of the current study was to evaluate tac of patients diagnosed with OSCC and to investigate their health related quality of life (hrql). MATERIAL AND METHODS: A German questionnaire was created by two maxillo-facial surgeons with several years of tac experience...
December 9, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28048874/su-f-t-616-comparison-of-different-techniques-using-rtog0631-guidelines-in-spine-sbrt
#16
H Acar, M Cebe, H Mabhouti, G Codel, P Pacaci, E Serin, E Sanli, N Kucuk, E Kucukmorkoc, M Doyuran, D Canoglu, A Altinok, H Caglar
PURPOSE: Stereotactic body radiosurgery (SBRT) for spine metastases involves irradiation using a single high dose fraction. The purpose of this study was to investigate a Hybrid VMAT/IMRT technique which combines volumetric modulated arc therapy (VMAT) and intensity modulated radiation therapy (IMRT) for spine SBRT in terms of its dosimetric quality and treatment efficiency using Radiation Therapy Oncology Group (RTOG) 0631 guidelines. METHODS: 7 fields IMRT, 2 full arcs VMAT and Hybrid VMAT/IMRT were created for ten previously treated patients...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048638/tu-d-201-04-veracity-of-data-elements-in-radiation-oncology-incident-learning-systems
#17
A Kapur, S Evans, D Brown, G Ezzell, D Hoopes, S Dieterich, K Kapetanovic, C Tomlinson
PURPOSE: Incident learning systems encompass volumes, varieties, values, and velocities of underlying data elements consistent with the V's of big data. Veracity, the 5th V however exists only if there is high inter-rater reliability (IRR) within the data elements. The purpose of this work was to assess IRR in the nationally deployed RO-ILS: Radiation Oncology-Incident Learning System (R) sponsored by the American Society for Radiation Oncology (ASTRO) and the American Association of Physicists in Medicine (AAPM)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048479/we-ab-207b-01-dose-tolerance-for-sbrt-sabr
#18
J Grimm
PURPOSE: Stereotactic body radiation therapy (SBRT) / stereotactic ablative body radiotherapy (SABR) is gaining popularity, but quantitative dose tolerance has still been lacking. To improve this, the April 2016 issue of Seminars in Radiation Oncology will have normal tissue complication probability (NTCP) models for 10 critical structures: optic pathway, cochlea, oral mucosa, esophagus, chestwall, aorta, bronchi, duodenum, small bowel, and spinal cord. METHODS: The project included more than 1500 treatments in 1-5 fractions using CyberKnife, Gamma Knife, or LINAC, with 60 authors from 15 institutions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048153/su-f-p-33-combining-research-and-professional-practice-in-the-clinical-setting-a-medical-physicist-personal-experience
#19
J L Oacutepez-Tarjuelo
PURPOSE: To initiate a discussion on the current and evolving role of Medical Physicists based on author's professional and research experience in patient safety and quality control. METHODS: Several professionals of the departments of Medical Physics and Radiation Oncology, chiefly devoted to clinical tasks, began a research program on patient safety and quality control in a framework provided by the implementation of intraoperative radiotherapy (IORT). We performed studies on virtual simulation for IORT, in vivo dosimetry, failure mode and effect analysis (FMEA), statistical process control (SPC), and receiver operating characteristics of dosimetric equipment...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047807/su-d-brb-02-combining-a-commercial-autoplanning-engine-with-database-dose-predictions-to-further-improve-plan-quality
#20
S P Robertson, J A Moore, X Hui, T L DeWeese, P Tran, H Quon, Z Cheng, K Bzdusek, P Kumar, T R McNutt
PURPOSE: Database dose predictions and a commercial autoplanning engine both improve treatment plan quality in different but complimentary ways. The combination of these planning techniques is hypothesized to further improve plan quality. METHODS: Four treatment plans were generated for each of 10 head and neck (HN) and 10 prostate cancer patients, including Plan_A: traditional IMRT optimization using clinically relevant default objectives; Plan_B: traditional IMRT optimization using database dose predictions; Plan_C: autoplanning using default objectives; and Plan_D: autoplanning using database dose predictions...
June 2016: Medical Physics
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