Search results for " Prosthesis"

showing 10 items of 441 documents

Treatment of isolated ascending aortic aneurysm by off-pump epiaortic wrapping is safe and durable.

2016

OBJECTIVES: Isolated ascending aortic aneurysm (iAA) is usually treated by open graft repair requiring sternotomy, cardiopulmonary bypass (CPB) and cardioplegia. This approach carries significant mortality in older patients or those presenting with comorbidities. We report an original series of patients presenting with iAA and treated with epiaortic wrapping by using a synthetic mesh. This less invasive aortic repair technique allows reducing the aortic diameter to a predefined value and is performed without CPB. METHODS: Data from patients presenting with an iAA and treated with the wrapping technique (WT) by polypropylene/polyester mesh from November 2006 to July 2015 were collected. The …

Aortic valveMaleTime Factors030204 cardiovascular system & hematologySettore MED/22 - Chirurgia Vascolarelaw.inventionAortic aneurysm0302 clinical medicinelawAorta10042 Clinic for Diagnostic and Interventional RadiologyMedicine (all)Middle Aged2746 Surgerymedicine.anatomical_structureTreatment OutcomeWrapping girdlingFemaleCardiology and Cardiovascular MedicineVascular Surgical ProceduresPulmonary and Respiratory Medicinemedicine.medical_specialtyOffOff-pump610 Medicine & healthProsthesis Design2705 Cardiology and Cardiovascular MedicineGraft repair03 medical and health sciencesAneurysmBlood vessel prosthesismedicine.arteryAscending aortamedicineCardiopulmonary bypassHumansAortic valve insufficiency; Ascending aorta; Graft repair; Mesh (polypropylene/polyester); Off-pump; Wrapping girdling; Surgery; Medicine (all); Pulmonary and Respiratory Medicine; Cardiology and Cardiovascular MedicineAgedRetrospective StudiesAortaAortic Aneurysm Thoracicbusiness.industryPerioperativemedicine.diseaseSternotomySurgeryBlood Vessel Prosthesis030228 respiratory systemAortic valve insufficiency2740 Pulmonary and Respiratory MedicinepumpSurgeryAscending aortaMesh (polypropylene/polyester)businessFollow-Up StudiesInteractive cardiovascular and thoracic surgery
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Outcomes of aortic valve repair according to valve morphology and surgical techniques

2012

OBJECTIVES: The aim of this study was to assess the impact of aortic valve morphology and different surgical aortic valve repair techni- ques on long-term clinical outcomes. METHODS: Between February 2003 and May 2010, 216 patients with aortic insufficiency underwent aortic valve repair in our institu- tion. Ages ranged between 26 and 82 years (mean 53 ± 15 years). Aortic valve dysfunctions, according to functional classification, were: type I in 55 patients (25.5%), type II in 126 (58.3%) and type III in 35 (16.2%). Sixty-six patients (27.7%) had a bicuspid valve. Aortic valve repair techniques included sub-commissural plasty in 138 patients, plication in 84, free-edge reinforcement in 80,…

Aortic valveMaleTime Factorsmedicine.medical_treatmentKaplan-Meier EstimateAortic valve repairRecurrenceRisk FactorsMitral valve80 and overHospital MortalityCoronary Artery BypassAortaUltrasonographyAged 80 and overTricuspid valveCalcinosisCardiac Valve AnnuloplastyMiddle AgedAortic valve repair • Bicuspid aortic valve • Tricuspid aortic valve • Aortic annulus stabilization medicine.anatomical_structureTreatment OutcomeAortic ValveReplantationcardiovascular systemCardiologyChordae TendineaeMitral ValveFemaleChordae tendineaeCardiology and Cardiovascular MedicineAdult; Aged; Aged 80 and over; Aorta; Aortic Valve; Aortic Valve Insufficiency; Blood Vessel Prosthesis Implantation; Calcinosis; Chordae Tendineae; Coronary Artery Bypass; Disease-Free Survival; Female; Hospital Mortality; Humans; Kaplan-Meier Estimate; Male; Middle Aged; Mitral Valve; Proportional Hazards Models; Recurrence; Replantation; Risk Assessment; Risk Factors; Time Factors; Treatment Outcome; Ultrasonography; Cardiac Valve Annuloplasty; Suture TechniquesPulmonary and Respiratory MedicineAdultmedicine.medical_specialtyAortic Valve InsufficiencyRisk AssessmentCardiac Valve AnnuloplastyDisease-Free SurvivalBlood Vessel Prosthesis ImplantationBicuspid valveInternal medicinemedicineHumansAgedProportional Hazards ModelsMitral valve repairbusiness.industrySuture TechniquesSettore MED/23 - Chirurgia CardiacaOriginal ArticlesSurgerySurgerybusiness
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A multicentre European registry to evaluate the Direct Flow Medical transcatheter aortic valve system for the treatment of patients with severe aorti…

2016

Aims Our aim was to assess the clinical outcomes of the Direct Flow Medical Transcatheter Aortic Valve System (DFM-TAVS), when used in routine clinical practice. Methods and results This is a prospective, open-label, multicentre, post-market registry of patients treated with DFM-TAVS according to approved commercial indications. Echocardiographic and angiographic data were evaluated by an independent core laboratory and adverse events were adjudicated and classified according to VARC-2 criteria by an independent clinical events committee. The primary endpoint was freedom from all-cause mortality at 30 days post procedure. Secondary endpoints included procedural, early safety and efficacy en…

Aortic valveMalemedicine.medical_specialtyCardiac Catheterizationmedicine.medical_treatmentAortic Valve InsufficiencyRegurgitation (circulation)030204 cardiovascular system & hematologyTranscatheter Aortic Valve Replacement03 medical and health sciences0302 clinical medicineRisk FactorsInternal medicinemedicineClinical endpointHumans030212 general & internal medicineHeart valveProspective StudiesRegistriesCardiac catheterizationAgedAged 80 and overHeart Valve Prosthesis Implantationbusiness.industryAortic Valve Stenosismedicine.disease3. Good healthClinical trialStenosismedicine.anatomical_structureTreatment OutcomeAortic valve stenosisAortic ValveHeart Valve ProsthesisCardiologyFemaleCardiology and Cardiovascular MedicinebusinessEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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Value and limitations of transesophageal echocardiography in the evaluation of aortic prostheses.

1993

Results of 34 transesophageal (TEE) studies in patients with suspected aortic prosthetic dysfunction were compared with transthoracic echocardiographic (TTE) results and to anatomic findings. Mass lesions noted at surgery (autopsy) were correctly described in 93% by TEE versus 43% by TTE. Abscesses were detected in 88% by TEE versus 18% by TTE. Bioprosthetic degeneration was visualized in 88% versus 38% and prosthetic obstruction correctly identified in 75% versus 50% by TEE and TTE, respectively. Anatomic aortic regurgitant lesions were identified in 96% by TEE versus 77% by TTE, whereas the correct origin was detected in 88% of cases by TEE versus 54% of cases by TTE. TEE provides valuabl…

Aortic valveMalemedicine.medical_specialtyProsthesis-Related InfectionsAortic Valve InsufficiencyAutopsySensitivity and SpecificityPostoperative ComplicationsPredictive Value of TestsmedicineHumansRadiology Nuclear Medicine and imagingIn patientProspective StudiesBioprosthesisbusiness.industryThrombosisbody regionsmedicine.anatomical_structureEchocardiographyAortic ValveHeart Valve ProsthesisFemaleRadiologyCardiology and Cardiovascular Medicinebusinesshuman activitiesJournal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
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Early structural degeneration of Mitroflow aortic valve: Another issue in addition to the mismatch?

2018

We reported two cases of early structural valve degeneration (SVD) with Mitroflow prosthesis in aortic position in patients above the age of 65 years. Microscopic aspects have been analysed to investigate the intrinsic mechanism of SVD. New techniques to improve the structure and the preservation of this prosthesis are needed in order to reduce potential dangerous early complications.

Aortic valvePulmonary and Respiratory Medicinemedicine.medical_specialtyAortic stenosimedicine.medical_treatmentCase ReportDegeneration (medical)030204 cardiovascular system & hematologyProsthesisStructural valve degeneration (SVD); aortic stenosis; prosthesis03 medical and health sciences0302 clinical medicineInternal medicinemedicineStructural valve degeneration (SVD)ProsthesiSettore MED/05 - Patologia ClinicaIn patient030212 general & internal medicineAortic stenosis; Prosthesis; Structural valve degeneration (SVD); Pulmonary and Respiratory Medicinebusiness.industryaortic stenosisSettore MED/23 - Chirurgia Cardiacamedicine.anatomical_structureCardiologyprosthesisbusiness
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Chronic atrial fibrillation in presence of aortic stenosis in a patient with polysplenia syndrome.

2013

We report a rare case of “situs viscerum ambiguous” with polysplenia syndrome, in a 69 year old female patient with aortic stenosis and chronic atrial fibrillation. The presenting symptom was dyspnoea on moderate exertion and an ECG showed supra ventricular arrhythmia. Patients trans-thoracic echocardiogram revealed a dilated left atrium, reduced ejection fraction, mild tricuspid regurgitation, moderate-severe pulmonary hypertension and severe aortic stenosis. The patient was successfully treated with a replacement of her aortic valve and ascending aorta.

Aortic valvemedicine.medical_specialtyPolysplenia syndromeRegurgitation (circulation)Heterotaxy SyndromePolysplenia Aortic Stenosis Atrial Fibrillationmedicine.arteryInternal medicineAscending aortaAtrial FibrillationMedicineChronic atrial fibrillationHumanscardiovascular diseasesAortaAgedHeart Valve Prosthesis ImplantationEjection fractionbusiness.industryGeneral MedicineAortic Valve Stenosismedicine.diseasePulmonary hypertensionSettore MED/11 - Malattie Dell'Apparato CardiovascolareStenosismedicine.anatomical_structureTreatment OutcomeChronic Diseasecardiovascular systemCardiologyFemalebusinessActa clinica Belgica
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Reduced protein adsorption on plastics via direct plasma deposition of triethylene glycol monoallyl ether

1997

The direct plasma-induced deposition of tri(ethylene glycol) monoallyl ether is reported. RF plasma polymerization of this monomer was carried out under both continuous wave (CW) and pulsed plasma operation. The major focus of this work was optimization of the degree of retention of the C-O-C bonds of the starting monomer during the deposition process. This successfully was accomplished using low RF power during the CW runs and low RF duty cycles during the pulsed plasma experiments. Spectroscopic analysis of the plasma films revealed a strong dependence of film composition on the RF power and duty cycles employed. In particular, an unusually high level of film chemistry compositional contr…

Aqueous solutionMaterials scienceBiomedical EngineeringBiocompatible MaterialsBlood ProteinsPolyethylenePlasma polymerizationBlood Vessel ProsthesisPolyethylene GlycolsBiomaterialschemistry.chemical_compoundMonomerAdsorptionchemistryChemical engineeringPolymer chemistryAnimalsHumansCattleEthylene GlycolsPlasticsEthylene glycolEthersProtein adsorptionTriethylene glycolJournal of Biomedical Materials Research
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Juxtapapillary duodenal diverticular bezor as an exceptional cause of biliary stent obstruction. Case report.

2007

INTRODUCTION: we describe the first case in literature of biliary stent obstruction by bezoar impaction in a iuxtapapillary duodenal diverticulum. CASE REPORT: this case illustrates an juxtapapillary duodenal diverticulum and bezoar in it causing obstructive jaundice in subject with two biliary stents for cholangiocarcinoma (Klatskin's tumor) in the absence of bile duct stones. RESULT: successful treatment with endoscopic stent removal and diverticulum toilette. Obstructive jaundice was cured after endoscopic removal of the bezoar and stent substitution. DISCUSSION: the presence of a bezoar and its possible contribution to the pathogenesis of pancreatitis in the presence of periampullary ex…

BezoarsMaleDiverticulumJaundice ObstructiveHumansStentsDuodenal Diseasesaged bezoar diverticulosis duodenum disease obstructive jaundice prosthesis failure stentAgedProsthesis FailureIl Giornale di chirurgia
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Large platelets but not putative endothelial progenitor cells are associated with low strut coverage after drug-eluting stent implantation

2015

Objectives This study assessed whether different subsets of circulating endothelial and putative endothelial progenitor cells (CEC and EPC) correlate with stent strut coverage (SSC) using second generation optical coherence tomography (OCT). Background Due to the lack of imaging modalities with a resolution down to the magnitude of a few cells, the influence of EPC on endothelialisation of drug-eluting stents has not been assessed in patients. Methods In 37 patients, SSC of everolimus-eluting stents was assessed by OCT 5-7months after stent implantation. Different subsets of EPC (CD34(+)KDR(+), CD34(+)KDR(+)CD45(dim), CD133(+), CD3(+)CD31(+)), CEC (CD31(+)CD45(-)CD146(+)), and CD31(+)CD45(-…

Blood PlateletsMaleCD31medicine.medical_specialtymedicine.medical_treatmentCD34UrologyFlow cytometryBlood Vessel Prosthesis ImplantationAntigens CDmedicineHumansPlateletEverolimusProgenitor cellAgedEndothelial Progenitor Cellsmedicine.diagnostic_testbusiness.industryStentDrug-Eluting StentsKinase insert domain receptorMiddle AgedFlow CytometryVascular Endothelial Growth Factor Receptor-2Drug-eluting stentImmunologycardiovascular systemFemaleCardiology and Cardiovascular MedicinebusinessImmunosuppressive AgentsTomography Optical CoherenceInternational Journal of Cardiology
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Mortality of ruptured abdominal aortic aneurysm with selective use of endovascular repair

2009

The aim of this review was to examine the results over a seven-year period of treatment for ruptured abdominal aortic aneurysm (RAAA). From 2002 on, our tertiary referral centre offered both open and endovascular (EVAR) treatment modalities for RAAA. All patients with a proven RAAA who were admitted into our hospital were included. Primary outcome measure was surgical mortality. In total 261 patients were admitted with suspicion of acute AAA. Of these, 175 (67%) had a RAAA, confirmed by computed tomography-scanning or at laparotomy. One hundred and fifty-nine patients (90.9%) were treated, 114 by open repair and 45 by EVAR. Overall mortality of patients treated was 25.2%, with an open repai…

Blood Vessel Prosthesis ImplantationTime FactorsTreatment Outcomeabdominal aortic aneurysmsurgical mortalityAortic RuptureHemodynamicsHumansendovascular repairTomography X-Ray ComputedAortographySettore MED/22 - Chirurgia VascolareAortic Aneurysm Abdominal
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