18 research outputs found

    Search for the Xb and other hidden-beauty states in the π+π−ϒ(1S) channel at ATLAS

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    This Letter presents a search for a hidden-beauty counterpart of the X(3872) in the mass ranges of 10.05–10.31 GeV and 10.40–11.00 GeV, in the channel Xb→π+π−ϒ(1S)(→μ+μ−), using 16.2 fb−1 of pp   collision data collected by the ATLAS detector at the LHC. No evidence for new narrow states is found, and upper limits are set on the product of the Xb cross section and branching fraction, relative to those of the ϒ(2S), at the 95% confidence level using the CLS approach. These limits range from 0.8% to 4.0%, depending on mass. For masses above 10.1 GeV, the expected upper limits from this analysis are the most restrictive to date. Searches for production of the ϒ(13DJ), , and states also reveal no significant signals

    Pathogenic Germline Variants in 10,389 Adult Cancers

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    We conducted the largest investigation of predisposition variants in cancer to date, discovering 853 pathogenic or likely pathogenic variants in 8% of 10,389 cases from 33 cancer types. Twenty-one genes showed single or cross-cancer associations, including novel associations of SDHA in melanoma and PALB2 in stomach adenocarcinoma. The 659 predisposition variants and 18 additional large deletions in tumor suppressors, including ATM, BRCA1, and NF1, showed low gene expression and frequent (43%) loss of heterozygosity or biallelic two-hit events. We also discovered 33 such variants in oncogenes, including missenses in MET, RET, and PTPN11 associated with high gene expression. We nominated 47 additional predisposition variants from prioritized VUSs supported by multiple evidences involving case-control frequency, loss of heterozygosity, expression effect, and co-localization with mutations and modified residues. Our integrative approach links rare predisposition variants to functional consequences, informing future guidelines of variant classification and germline genetic testing in cancer. A pan-cancer analysis identifies hundreds of predisposing germline variants

    The Physics of the B Factories

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    Pre-COVID-19 National Mortality Trends in Open and Video-Assisted Lobectomy for Non-Small Cell Lung Cancer

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    Introduction In the current era of episode-based hospital reimbursements, it is important to determine the impact of hospital size on contemporary national trends in surgical technique and outcomes of lobectomy. Methods Patients aged >18 y undergoing open and video-assisted thoracoscopic surgery (VATS) lobectomy from 2008 to 2014 were identified using insurance claims data from the National Inpatient Sample. The impact of hospital size on surgical approach and outcomes for both open and VATS lobectomy were analyzed. Results Over the 7-y period, 202,668 lobectomies were performed nationally, including 71,638 VATS and 131,030 open. Although the overall number of lobectomies decreased (30,058 in 2008 versus 27,340 in 2014, P 0.05) but did decrease among small hospitals (4.1%-1.3% and 5.1%-1.1% for VATS and open, respectively; both P < 0.05). After adjusting for confounders, hospital bed size was not a predictor of in-hospital mortality. Conclusions Utilization of VATS lobectomies has increased over time, more so among small hospitals. Mortality rates for open lobectomy remain consistently higher than VATS lobectomy (range 0.4%-1.4%) but did not significantly differ over time. This data can help benchmark hospital performance in the future

    Impact of Neoadjuvant Chemoradiation on Adverse Events After Bronchial Sleeve Resection

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    Background. We analyzed the association between neoadjuvant chemoradiation in patients undergoing bronchial sleeve resection with the incidence of postoperative pulmonary and airway complications. Methods. After instructional review board approval we performed a retrospective review of a prospectively maintained database of 136 patients who underwent sleeve resection in our institution between January 1998 and December 2016. Administration of neoadjuvant chemoradiation treatment was the studied exposure. Outcomes of interest were rates of postoperative pulmonary and airway complications. Nonparametric testing of demographic, surgical, and pathologic characteristics and morbidity was performed. Logistic regression models evaluated postoperative pulmonary complications and airway complications. Analysis was performed using Stata/IC 15. Results. We analyzed 136 patients (18 underwent neoadjuvant chemoradiation), 77 (57%) of whom had nonsmall cell lung cancer. Postoperative pulmonary complications were observed in 44 of 136 patients (32%). Incidences of pulmonary complications were higher in the neoadjuvant chemoradiation group compared with the non–neoadjuvant radiation group (15/18 patients [83%] vs 29/118 patients [25%], respectively; P < .001). Likewise, rates of pneumonia, atelectasis, respiratory insufficiency, bronchial stenosis, prolonged air leak, bronchopleural fistula, and completion pneumonectomy (2/18 [11%]) were higher in the neoadjuvant chemoradiation group, reaching statistical significance in all cases except bronchial stenosis and prolonged air leak. Only neoadjuvant chemoradiation therapy remained significant for postoperative pulmonary and airway complications on logistic regression (both P < .05) Conclusions. Patients who undergo neoadjuvant chemoradiation before sleeve resection are at an increased risk of pulmonary and airway complications

    Video-assisted thoracoscopic surgery lobectomy at 20 years: A consensus statement

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    OBJECTIVE: Video-assisted thoracoscopic surgery (VATS) lobectomy has been gradually accepted as an alternative surgical approach to open thoracotomy for selected patients with non-small-cell lung cancer (NSCLC) over the past 20 years. The aim of this project was to standardize the perioperative management of VATS lobectomy patients through expert consensus and to provide insightful guidance to clinical practice. METHODS: A panel of 55 experts on VATS lobectomy was identified by the Scientific Secretariat and the International Scientific Committee of the '20th Anniversary of VATS Lobectomy Conference-The Consensus Meeting'. The Delphi methodology consisting of two rounds of voting was implemented to facilitate the development of consensus. Results from the second-round voting formed the basis of the current Consensus Statement. Consensus was defined a priori as more than 50% agreement among the panel of experts. Clinical practice was deemed 'recommended' if 50-74% of the experts reached agreement and 'highly recommended' if 75% or more of the experts reached agreement. RESULTS: Fifty VATS lobectomy experts (91%) from 16 countries completed both rounds of standardized questionnaires. No statistically significant differences in the responses between the two rounds of questioning were identified. Consensus was reached on 21 controversial points, outlining the current accepted definition of VATS lobectomy, its indications and contraindications, perioperative clinical management and recommendations for training and future research directions. CONCLUSION: The present Consensus Statement represents a collective agreement among 50 international experts to establish a standardized practice of VATS lobectomy for the thoracic surgical community after 20 years of clinical experience. The Author 2013. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.SCOPUS: ar.jinfo:eu-repo/semantics/publishe
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