Search results for "STED"

showing 10 items of 2256 documents

Early and midterm outcomes of bioresorbable vascular scaffolds for ostial coronary lesions: insights from the GHOST-EU registry.

2016

Aims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset, with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term, but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA), left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death, target vessel m…

LCX (29Target lesionMale52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostialp= 0.035)medicine.medical_treatmentMyocardial Infarction304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14Coronary Artery Disease030204 cardiovascular system & hematologyCoronary artery diseasebut their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA)0302 clinical medicineAbsorbable Implants030212 general & internal medicineMyocardial infarctionCircumflexRegistriesTissue Scaffolds32%)Drug-Eluting StentsMiddle AgedThrombosisCoronary VesselsAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA) left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death target vessel myocardial infarction or target lesion revascularisation. The database included a total of 1549 lesions in 1304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14; 16%) LCX (29; 32%) or LAD (47; 52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostial p= 0.618) post-dilation in 43% (versus 58% in the non-ostial group p= 0.008). At quantitative coronary angiography treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37] p= 0.035) but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groups respectively log-rank p= 0.005). The device-oriented composite endpoint occurred respectively in 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025 HR 2.65 [1.41-4.97]).OstiumAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subsetTreatment Outcomein 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025CardiologyFemale549 lesions in 1medicine.symptomCardiology and Cardiovascular MedicineAdultpost-dilation in 43% (versus 58% in the non-ostial groupmedicine.medical_specialtyor LAD (47HR 2.65 [1.41-4.97])but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groupsrespectivelyLesion03 medical and health sciencesPercutaneous Coronary Interventionwith higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long termleft anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular deathInternal medicinemedicineHumanstarget vessel myocardial infarction or target lesion revascularisation. The database included a total of 1Agedp= 0.008). At quantitative coronary angiographybusiness.industryPercutaneous coronary interventionp= 0.618)treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37]log-rank p= 0.005). The device-oriented composite endpoint occurredmedicine.diseaseSurgery16%)businessEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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Posted Migration and Segregation in the European Construction Sector

2015

Worker ‘posting’ or temporary migration of manual workers sent by their employers to work on projects abroad has become increasingly prominent in the European construction industry. It is now normal to find groups of workers from all around Europe on construction sites, living in nearby temporary accommodations, moving on to other projects or back home when the project is complete. This article highlights the interaction between the social and spatial segregation and transnational mobility of these workers in the European Union construction labour market. We argue that the work-focused and employer-dominated nature of the posted workers' social world abroad contributes to their segregation …

Labour economicslähetetyt työntekijätSpatial segregationposted workerssegregaatioPoliticsArts and Humanities (miscellaneous)Market segmentation0502 economics and business050602 political science & public administrationSoziologie Sozialwissenschaftenmedia_common.cataloged_instanceEuropean unionDemographymedia_commonlabour market segmentation05 social sciences050209 industrial relationsta5142segregation0506 political sciencelabour migrationWork (electrical)Construction industryta51418. Economic growthBusinesstemporary migration
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Uterine preservation in pelvic organ prolapse and urinary stress incontinence using robot-assisted laparoscopic surgery. Case report

2020

Highlights • Pelvic organ prolapse (POP) represents a common and bothersome condition in parous women. • The demand to “save” the uterus has fuelled a renewal of the surgical technique. • Robotic surgery was conceived with the intent to overcome the limitations of laparoscopic surgery. • The characteristics of the robotic system help surgeons to perform conservative management of POP.

Laparoscopic surgerySacrohysteropexyStress incontinencemedicine.medical_specialtygenetic structuresmedicine.medical_treatmentCase ReportUrinary incontinence03 medical and health sciences0302 clinical medicinemedicineRetropubic colposuspensionPelvic floorHysterectomyurogenital systembusiness.industryRobot-assisted laparoscopySacrohysteropexymedicine.diseasePelvic organ prolapseRoboticSurgerybody regionssurgical procedures operativemedicine.anatomical_structure030220 oncology & carcinogenesisRobot-Assisted Laparoscopic Surgery030211 gastroenterology & hepatologySurgerymedicine.symptombusinessAbdominal surgeryInternational Journal of Surgery Case Reports
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Work-related upper limb musculoskeletal disorders in paediatric laparoscopic surgery. A multicenter survey.

2013

Abstract Background Surgeons are at risk for developing work-related musculoskeletal symptoms (WMS). The present study aims to examine the physical factors and their association with WMS among pediatric laparoscopic surgeons. Methods A questionnaire consisting of 21 questions was created and mailed to 25 pediatric laparoscopic surgeons (LG). 23/25 surgeons (92%) completed the survey. The questionnaire was analyzed and then split into 2 groups. Group 1 (LG1) included surgeons with greater laparoscopic experience, and group 2 (LG2) included surgeons with less important laparoscopic experience. In addition, we constructed and sent to the same surgeons a similar questionnaire focused on WMS aft…

Laparoscopic surgerySleep Wake Disordersmedicine.medical_specialtyTime FactorsCumulative Trauma Disordersmedicine.medical_treatmentVideo-Assisted SurgeryWorkloadWork relatedPediatricsSpecialties SurgicalShoulder PainSurveys and QuestionnairesmedicineHumansRobotic surgeryLaparoscopyRetrospective StudiesNeck painArm InjuriesNeck Painmedicine.diagnostic_testbusiness.industryData CollectionRetrospective cohort studyGeneral MedicineVideo-Assisted SurgeryOccupational Diseasessurgical procedures operativemedicine.anatomical_structurePediatrics Perinatology and Child HealthPhysical therapyUpper limbSurgeryLaparoscopyErgonomicsmedicine.symptombusinessJournal of pediatric surgery
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Giant subcutaneous lipomatosis in Myoclonic Epilepsy with Ragged Red Fibers syndrome: The first literature report of “laparoscopic” excision

2020

Background MERRF (Myoclonic Epilepsy with Ragged Red Fibers) is a rare multisystem clinical disorder due to a pathogenic variant of the mitochondrial DNA. Rare symptoms of MERRF include multiple systemic lipomatosis with symmetric uncapsulated lipomas occurs generally on the posterior cervical region and upper back. Methods We report the clinical case of a 46 years-old Caucasian man with MERRF syndrome who presented with MSL on the right cervical region. We decided to perform a mini-invasive approach using laparoscopic instruments. We performed a 10-mm incision about 5 cm under the mass and conducted a blunt dissection of the subcutaneous plane. Then we positioned a 10-mm port and started C…

Laparoscopic surgerymedicine.medical_specialtySubcutaneous lipomatosisbusiness.industryMERRF syndromemedicine.medical_treatmentLipomatosisMini-invasive surgeryMERRF syndromelcsh:Surgerylcsh:RD1-811Laparoscopic excisionLaparoscopic surgerymedicine.diseaseSurgeryMini invasive surgerySettore MED/18 - Chirurgia GeneraleRagged-red fibersSubcutaneous lipomatosismedicineMyoclonic epilepsySurgeryVideoassisted surgerybusiness
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Fast and green: Sustainable rapid-prototyping of microfluidic chips on polylactic acid substrates

2018

This paper reports novel ways to bond bio-based polylactic acid (PLA) substrates for the production of sustainable, single-use, microfluidic components. A laser-based, fast (minutes) fabrication process for multi-layer microfluidic devices in PLA was reported recently but in that report, demonstrator devices were bonded with adhesive tape, which significantly reduced the devices transparency. In this paper, we propose two novel ways to bond PLA substrates, which alleviate the need for adhesives, and enable optimal device transparency.

Laser Absorption WeldingThermal bondingSacrificial Layer Assisted Method (SLAM)Settore ING-IND/34 - Bioingegneria IndustrialeFunctionalizationPolylactic acid
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Volatiles in pantellerite magmas: A case study of the Green Tuff Plinian eruption (Island of Pantelleria, Italy)

2013

Abstract The Green Tuff (GT) Plinian eruption, the largest in magnitude at Pantelleria, erupted 3 to 7 km3 DRE of pantellerite magma and a small volume of trachyte. Fifty-nine anorthoclase-hosted melt inclusions from the two basal pumice members were analyzed by FT-IR spectroscopy in order to assess the pre-eruptive H2O content in the pantellerite melt. Microanalytical methods were used to determine major element, Cl, F and S contents. Melt inclusions and glassy groundmasses have a nearly homogeneous pantelleritic composition (peralkaline index = 1.9-2.2) and variable water contents ranging from 1.4 to as high as 4.2 wt %, i.e. much higher than the 1.4 wt % of earlier published studies. The…

LavaSettore GEO/07 - Petrologia E PetrografiaGeochemistryTrachyteMagma chamberStrombolian eruptionGeophysicsEffusive eruptionGeochemistry and PetrologyPumiceMagmaThe Green Tuff (GT) Plinian eruption the largest in magnitude at Pantelleria erupted 3 to 7 km 3 DRE of pantellerite magma and a small volume of trachyte. Fifty-nine anorthoclase-hosted melt inclusions from the two basal pumice members were analyzed by FT-IR spectroscopy in order to assess the pre-eruptive H2Ocontent in the pantellerite melt. Microanalytical methods were used to determine major element Cl F and S contents. Melt inclusions and glassy groundmasses have a nearly homogeneous pantelleritic composition (peralkaline index = 1.9-2.2) and variable water contents ranging from 1.4 to as high as 4.2 wt % i.e. much higher than the 1.4 wt % of earlier published studies. The chlorine content is constant at about 1 wt %. Combined Cl and H2O data were used to estimate a confining pressure of about 50 MPa (depth around 2-3 km) for the GT magma chamber. The chamber was characterized by a compositional zoning with a dominant pantellerite overlying a trachyte magma. Soon after the GT eruption intra-caldera volcanism was dominated by the eruption of voluminous trachyte lavaflows while pantellerite melt production resumed after about 20 ka with numerous low-volume mildly explosive (Strombolian) to effusive eruptions. Comparison with data from the literature reveals that despite the differentexplosivity the post-caldera Strombolian eruptions and the GT Plinian eruption were fed by pantelleritic magmas with similar water contents. Chlorine and CO2contents suggest that the young magma reservoirs feeding the Strombolian to effusive activity were deeper (h≥4.5 km) than the much larger (based on erupted volumes) magma chamber which fed the GT eruptionGeologyMelt inclusionsJournal of Volcanology and Geothermal Research
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Multi-Path U-Net Architecture for Cell and Colony-Forming Unit Image Segmentation

2022

U-Net is the most cited and widely-used deep learning model for biomedical image segmentation. In this paper, we propose a new enhanced version of a ubiquitous U-Net architecture, which improves upon the original one in terms of generalization capabilities, while addressing several immanent shortcomings, such as constrained resolution and non-resilient receptive fields of the main pathway. Our novel multi-path architecture introduces a notion of an individual receptive field pathway, which is merged with other pathways at the bottom-most layer by concatenation and subsequent application of Layer Normalization and Spatial Dropout, which can improve generalization performance for small datase…

Layer Normalizationneural networkChemical technologyStem CellsTP1-1185U-NetBiochemistryencoder–decoderAtomic and Molecular Physics and OpticsAnalytical Chemistryskip-connectionsImage Processing Computer-AssistedNeural Networks ComputerU-Net; skip-connections; neural network; encoder–decoder; Layer NormalizationElectrical and Electronic EngineeringInstrumentationSensors; Volume 22; Issue 3; Pages: 990
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A nested virtualization tool for information technology practical education

2016

Background A common problem of some information technology courses is the difficulty of providing practical exercises. Although different approaches have been followed to solve this problem, it is still an open issue, specially in security and computer network courses. Results This paper proposes NETinVM, a tool based on nested virtualization that includes a fully functional lab, comprising several computers and networks, in a single virtual machine. It also analyzes and evaluates how it has been used in different teaching environments. Conclusions The results show that this tool makes it possible to perform demos, labs and practical exercises, greatly appreciated by the students, that woul…

Lecture-based learningNetwork securityComputer scienceProblem-based learningDistributed computingNested virtualization02 engineering and technologyMultidisciplinary approach020204 information systems0202 electrical engineering electronic engineering information engineeringComputingMilieux_COMPUTERSANDEDUCATIONComputer networksSystem administrationMultidisciplinarybusiness.industry05 social sciences050301 educationInformation technologyNetwork securityNested virtualizationProblem-based learningSystem administrationbusinessSoftware engineering0503 educationSoftwareSpringerPlus
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P111 ROBOTIC-ASSISTED REPAIR OF IATROGENIC LEFT BRONCHUS PERFORATION DURING RAMIE – A CASE REPORT

2019

Abstract Background Iatrogenic bronchial injury during an esophageal surgery is a severe complication. Hence, immediate treatment is necessary to avoid further pulmonary complications and death. We present a case of an intraoperative bronchial injury caused by a bronchial tube cuff during a full robotic-assisted Ivor-Lewis esophagectomy (RAMIE). Case report A 64-year old patient with adenocarcinoma of the distal esophagus was planned for a RAMIE after completing neoadjuvant radiochemotherapy. Before beginning the thoracic phase, the anesthesist reported an airway leakage during the ventilation. During the transthoracic robotic assisted esophagectomy a perforation of the left main bronchus c…

Left bronchusmedicine.medical_specialtybusiness.industryRobotic assistedPerforation (oil well)GastroenterologyMedicineGeneral MedicinebusinessSurgeryRamieDiseases of the Esophagus
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