0000000000738166

AUTHOR

B Chambers

showing 3 related works from this author

Evaluation of appendicitis risk prediction models in adults with suspected appendicitis.

2019

Background Appendicitis is the most common general surgical emergency worldwide, but its diagnosis remains challenging. The aim of this study was to determine whether existing risk prediction models can reliably identify patients presenting to hospital in the UK with acute right iliac fossa (RIF) pain who are at low risk of appendicitis. Methods A systematic search was completed to identify all existing appendicitis risk prediction models. Models were validated using UK data from an international prospective cohort study that captured consecutive patients aged 16–45 years presenting to hospital with acute RIF in March to June 2017. The main outcome was best achievable model specificity (pro…

AdulthumanosDecision MakingRisk AssessmentNOapendicectomíaapendicitisevaluación de riesgosAppendectomyHumanshospitalGeneralcollaborativeLS7_4right iliac fossa; appendicitis; collaborativeemergency serviceOriginal Articlesadultoright iliac fossaAppendicitisadult; appendectomy; appendicitis; humans; risk assessment; decision making; emergency service; hospitalLower GIOriginal Articleappendicitis prediction models right iliac fossa painEmergency Service Hospitaltoma de decisiónThe British journal of surgery
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Severity of Asymptomatic Carotid Stenosis and Risk of Ipsilateral Hemispheric Ischaemic Events: Results from the ACSRS Study

2005

Objectives. This study determines the risk of ipsilateral ischaemic neurological events in relation to the degree of asymptomatic carotid stenosis and other risk factors. Methods. Patients (n = 1115) with asymptomatic internal carotid artery (ICA) stenosis greater than 50% in relation to the bulb diameter were followed up for a period of 6-84 (mean 37.1) months. Stenosis was graded using duplex, and clinical and biochemical risk factors were recorded. Results. The relationship between ICA stenosis and event rate is linear when stenosis is expressed by the ECST method, but S-shaped if expressed by the NASCET method. In addition to the ECST grade of stenosis (RR 1.6; 95% CI 1.21-2.15), histor…

Riskmedicine.medical_specialtymedicine.medical_treatmentCarotid StenosiPredictive Value of TestCarotid endarterectomySeverity of Illness IndexAsymptomaticBrain Ischemiachemistry.chemical_compoundCerebrovascular Accidentmedicine.arteryInternal medicineSeverity of illnessNASCETMED/22 - CHIRURGIA VASCOLAREmedicineCarotidStenosisMedicine(all)Ultrasonography Doppler DuplexCreatininebusiness.industryRisk FactorIncidence (epidemiology)medicine.diseasemajor clinical studyUltrasonography Duplex DopplerAsymptomaticStenosischemistryPredictive value of testsCardiologySurgeryECSTRadiologyInternal carotid arterymedicine.symptomCardiology and Cardiovascular MedicinebusinessHumanEuropean Journal of Vascular and Endovascular Surgery
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The size of juxtaluminal hypoechoic area in ultrasound images of asymptomatic carotid plaques predicts the occurrence of stroke

2013

Abstract OBJECTIVE: To test the hypothesis that the size of a juxtaluminal black (hypoechoic) area (JBA) in ultrasound images of asymptomatic carotid artery plaques predicts future ipsilateral ischemic stroke. METHODS: A JBA was defined as an area of pixels with a grayscale value 10 mm(2) (P 8 mm(2)) was still significant after adjusting for other plaque features known to be associated with increased risk, including stenosis, grayscale median, presence of discrete white areas without acoustic shadowing indicating neovascularization, plaque area, and history of contralateral TIA or stroke. Plaque area and grayscale median were not significant. Using the significant variables (stenosis, discr…

Asymptomatic carotid plaqueMaleTime Factorsmedicine.medical_treatmentCarotid endarterectomyKaplan-Meier EstimateSeverity of Illness Indexasymptomatic carotid artery stenosis; hypoecoic area; StrokeRisk FactorsCarotid StenosisUltrasonography Doppler ColorProspective cohort studyStrokeAged 80 and overNeovascularization Pathologichypoecoic areaMiddle AgedPrognosisPlaque AtheroscleroticEuropeStrokeIschemic Attack TransientPredictive value of testsFemaleRadiologymedicine.symptomjuxtaluminal hypoechoic area ultrasound images asymptomatic carotid plaques strokeCardiology and Cardiovascular MedicineCarotid Artery InternalAdultmedicine.medical_specialtyAsymptomaticRisk AssessmentAsymptomatic carotid plaque; Brain ischemia; Stroke; EchographyBrain ischemiaPredictive Value of Testsasymptomatic carotid artery stenosimedicineHumanscardiovascular diseasesAgedProportional Hazards Modelsbusiness.industryProportional hazards modelmedicine.diseaseAcoustic shadowSettore MED/11 - Malattie Dell'Apparato CardiovascolareStenosisROC CurveAsymptomatic DiseasesLinear ModelsSurgeryasymptomatic carotid artery stenosisEchographybusinessFollow-Up Studies
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