0000000000423406

AUTHOR

A. Gritsan

showing 5 related works from this author

Search for Production of Invisible Final States in Single-Photon Decays of Υ(1S)

2010

We search for single-photon decays of the Upsilon(1S) resonance, Upsilon->gamma+invisible, where the invisible state is either a particle of definite mass, such as a light Higgs boson A0, or a pair of dark matter particles, chi chi-bar. Both A0 and chi are assumed to have zero spin. We tag Upsilon(1S) decays with a dipion transition Upsilon(2S)->pi+pi-Upsilon(1S) and look for events with a single energetic photon and significant missing energy. We find no evidence for such processes in the mass range m_A0<=9.2 GeV and m_chi<=4.5 GeV in the sample of 98e6 Upsilon(2S) decays collected with the BaBar detector and set stringent limits on new physics models that contain light dark ma…

Particle physicsPhotonAstrophysics::High Energy Astrophysical PhenomenaPhysics beyond the Standard ModelElectron–positron annihilationDark matterFOS: Physical sciencesGeneral Physics and Astronomy01 natural sciencesResonance (particle physics)High Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)PACS: 13.20.Gd 12.60.Jv 14.80.Da 95.35.+d0103 physical sciencessingle-photon decays of Upsilon(1S)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsLight dark matterPhysicsMissing energy010308 nuclear & particles physicsParticle physicsBABAR detectorHEPBaBarHiggs bosonHigh Energy Physics::ExperimentFísica de partículesExperimentsBaBar detector at SLAC
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Post-anaesthesia pulmonary complications after use of muscle relaxants (POPULAR): a multicentre, prospective observational study

2019

Background: Results from retrospective studies suggest that use of neuromuscular blocking agents during general anaesthesia might be linked to postoperative pulmonary complications. We therefore aimed to assess whether the use of neuromuscular blocking agents is associated with postoperative pulmonary complications. Methods: We did a multicentre, prospective observational cohort study. Patients were recruited from 211 hospitals in 28 European countries. We included patients (aged ≥18 years) who received general anaesthesia for any in-hospital procedure except cardiac surgery. Patient characteristics, surgical and anaesthetic details, and chart review at discharge were prospectively collecte…

Pulmonary and Respiratory Medicinepulmonary complications muscle relaxants Post-anaesthesia complicationsNeuromuscular Blockadepulmonary complication muscle relaxantneuromuscular block ; postoperative pulmonary complicationbusiness.industryRetrospective cohort studypost-operative pulmonary complicationsNeuromuscular monitoringNeuromuscular Blocking AgentsSugammadexNOAnaesthesia03 medical and health sciences0302 clinical medicine030228 respiratory systemAnesthesiaMedicineGeneral anaesthesiaNeuromuscular Agents030212 general & internal medicineMED/41 - ANESTESIOLOGIAProspective cohort studybusinessmedicine.drug
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Intracranial pressure monitoring in patients with acute brain injury in the intensive care unit (SYNAPSE-ICU): an international, prospective observat…

2021

Background: The indications for intracranial pressure (ICP) monitoring in patients with acute brain injury and the effects of ICP on patients’ outcomes are uncertain. The aims of this study were to describe current ICP monitoring practises for patients with acute brain injury at centres around the world and to assess variations in indications for ICP monitoring and interventions, and their association with long-term patient outcomes. Methods: We did a prospective, observational cohort study at 146 intensive care units (ICUs) in 42 countries. We assessed for eligibility all patients aged 18 years or older who were admitted to the ICU with either acute brain injury due to primary haemorrhagic…

MaleIntracranial PressureGlasgow Outcome ScaleMalalties cerebralsintensive care unitlaw.inventionCohort Studies0302 clinical medicinelawBrain Injuries TraumaticMedicineacute brain injuryProspective StudiesProspective cohort studyUnitats de cures intensivesIntracranial pressureIntensive care unitsGlasgow Outcome ScaleMiddle AgedIntensive care unitIntensive Care UnitsHypertensionIntracranial pressure monitoringFemaleHipertensióBrain diseasesAdultmedicine.medical_specialtyCritical CareTraumatic brain injuryIntracranial pressure monitoring brain injury03 medical and health sciencesInternal medicineIntensive careSettore MED/41 - ANESTESIOLOGIAHumansGlasgow Coma ScaleAgedMonitoring Physiologicbusiness.industryGlasgow Coma Scale030208 emergency & critical care medicineICPIntracranial pressure monitoringmedicine.diseaseBrain InjuriesNeurology (clinical)Intracranial Hypertensionbusiness030217 neurology & neurosurgery
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The Association of Intraoperative driving pressure with postoperative pulmonary complications in open versus closed abdominal surgery patients – a po…

2021

Abstract Background It is uncertain whether the association of the intraoperative driving pressure (ΔP) with postoperative pulmonary complications (PPCs) depends on the surgical approach during abdominal surgery. Our primary objective was to determine and compare the association of time–weighted average ΔP (ΔPTW) with PPCs. We also tested the association of ΔPTW with intraoperative adverse events. Methods Posthoc retrospective propensity score–weighted cohort analysis of patients undergoing open or closed abdominal surgery in the ‘Local ASsessment of Ventilatory management during General Anaesthesia for Surgery’ (LAS VEGAS) study, that included patients in 146 hospitals across 29 countries.…

Driving pressure; Laparoscopic surgery; Laparoscopy; PEEP; Perioperative ventilation; Pneumoperitoneum; Protective ventilation; Respiratory mechanics;Lung DiseasesMaleLaparoscopic surgery[SDV]Life Sciences [q-bio]medicine.medical_treatmentLaparoscopic surgeryCohort StudiesPositive-Pressure RespirationPostoperative Complications0302 clinical medicinePneumoperitoneum030202 anesthesiologyPneumoperitoneumAbdomenClinical endpointPerioperative ventilationMiddle Aged3. Good healthDriving pressure Laparoscopic surgery Laparoscopy PEEP Perioperative ventilation Pneumoperitoneum Protective ventilation Respiratory mechanicsDriving pressureFemaleResearch ArticleCohort studyProtective ventilationAdultmedicine.medical_specialtyAnestesi och intensivvårdRespiratory mechanicsAnesthesia GeneralNOlcsh:RD78.3-87.303 medical and health sciencesmedicineHumansPropensity ScoreAdverse effectPEEPAgedRetrospective StudiesDriving pressure; Laparoscopic surgery; Laparoscopy; PEEP; Perioperative ventilation; Pneumoperitoneum; Protective ventilation; Respiratory mechanicsAnesthesiology and Intensive Carebusiness.industryKirurgi030208 emergency & critical care medicineOdds ratiomedicine.diseaseRespiration ArtificialSurgeryAnesthesiology and Pain Medicinelcsh:AnesthesiologyRelative riskSurgeryLaparoscopyDriving pressure ; Laparoscopic surgery ; Laparoscopy ; PEEP ; Perioperative ventilation ; Pneumoperitoneum ; Protective ventilation ; Respiratory mechanics.businessAbdominal surgery
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Assessment of the worldwide burden of critical illness: The Intensive Care Over Nations (ICON) audit

2014

Item does not contain fulltext BACKGROUND: Global epidemiological data regarding outcomes for patients in intensive care units (ICUs) are scarce, but are important in understanding the worldwide burden of critical illness. We, therefore, did an international audit of ICU patients worldwide and assessed variations between hospitals and countries in terms of ICU mortality. METHODS: 730 participating centres in 84 countries prospectively collected data on all adult (>16 years) patients admitted to their ICU between May 8 and May 18, 2012, except those admitted for fewer than 24 h for routine postoperative monitoring. Participation was voluntary. Data were collected daily for a maximum of 28 da…

Pulmonary and Respiratory Medicinemedicine.medical_specialtyCritical Illnesshealth care facilities manpower and servicesPopulationlnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4]Critical care european intensive care icon studyComorbidityintensive care medicineGlobal HealthMOF; sepsis; critically ill[SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tractICON Intensive CareArticleSepsisCohort StudiesOutcome Assessment (Health Care)Intensive careSepsisOutcome Assessment Health CareEpidemiologyHealth careSettore MED/41 - ANESTESIOLOGIAmedicineGlobal healthcritical illness mortalityHumansHospital MortalityeducationIntensive care medicineeducation.field_of_studyMedical Auditbusiness.industryIntensive Caremedicine.diseaseComorbidity3. Good healthIntensive Care UnitsICONbusinessCohort study
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