Search results for "Sinotubular Junction"

showing 5 items of 5 documents

In Silico Shear and Intramural Stresses are Linked to Aortic Valve Morphology in Dilated Ascending Aorta

2017

Objective/Background: The development of ascending aortic dilatation in patients with bicuspid aortic valve (BAV) is highly variable, and this makes surgical decision strategies particularly challenging. The purpose of this study was to identify new predictors, other than the well established aortic size, that may help to stratify the risk of aortic dilatation in BAV patients.Methods: Using fluid-structure interaction analysis, both haemodynamic and structural parameters exerted on the ascending aortic wall of patients with either BAV ( n = 21) or tricuspid aortic valve (TAV; n = 13) with comparable age and aortic diameter (42.7 +/- 5.3 mm for BAV and 45.4 +/- 10.0 mm for TAV) were compared…

Aortic valveMalePatient-Specific ModelingComputed Tomography AngiographyHeart Valve DiseasesHemodynamics02 engineering and technology030204 cardiovascular system & hematology0302 clinical medicineBicuspid aortic valveBicuspid Aortic Valve DiseaseRisk FactorsAortaSinotubular JunctionModels CardiovascularSettore ING-IND/34 - Bioingegneria IndustrialeComputational modelingAneurysm of ascending aortaMiddle AgedAortic AneurysmHeart Valve Diseasemedicine.anatomical_structureAortic Valvecardiovascular systemCardiologyWall shear streFemaleCardiology and Cardiovascular MedicineBlood Flow VelocityDilatation PathologicHumanmedicine.medical_specialtyBicuspid aortic valve0206 medical engineeringAortography03 medical and health sciencesInternal medicinemedicine.arteryAscending aortamedicineHumansAgedAortabusiness.industryRisk FactorSignificant differenceHemodynamicsmedicine.disease020601 biomedical engineeringAortic wallRegional Blood FlowSurgeryStress Mechanicalbusiness
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Functional annulus remodelling using a prosthetic ring in tricuspid aortic valve repair: mid-term results

2013

OBJECTIVES: The functional aortic valve annulus (FAVA) is a complex unit with proximal (aorto-ventricular junction) and distal (sinotubular junction) components. The aim of our study was to evaluate the impact of the total FAVA remodelling, using a prosthetic ring, on mid-term clinical and echocardiographic-RESULTS:-after aortic valve repair. METHODS: Since February 2003, 250 patients with tricuspid aortic valve insufficiency (AI) underwent aortic valve repair. FAVA dilatation was treated by prosthetic ring in 52 patients, by isolated subcommissural plasty in 62, by subcommissural plasty plus ascending aortic replacement in 57 and by David's reimplantation procedure in 79. Survival rate and…

MaleAortic valveTime Factorsmedicine.medical_treatmentKaplan-Meier EstimateAortic valve repairRisk FactorsRecurrenceAortic Valve AnnulusAortic valveHospital MortalityUltrasonographyAged 80 and overHeart Valve Prosthesis ImplantationAnnulus (mycology)Sinotubular JunctionMiddle AgedCardiac Valve AnnuloplastyTreatment Outcomemedicine.anatomical_structureEchocardiographyHeart Valve ProsthesisReplantationReplantationcardiovascular systemCardiologyFemaleCardiology and Cardiovascular MedicineHumanAdultHeart Defects CongenitalPulmonary and Respiratory Medicinemedicine.medical_specialtyTime FactorAortic Valve InsufficiencyProsthesis DesignCardiac Valve AnnuloplastyDisease-Free SurvivalRisk analysiInternal medicinemedicineHumansSurvival rateStatisticAgedbusiness.industryPatient SelectionRisk FactorSettore MED/23 - Chirurgia CardiacaOriginal ArticlesSurgeryHeart Valve ProsthesiSurgerybusinessRepairInteractive CardioVascular and Thoracic Surgery
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Anatomical and procedural features associated with aortic root rupture during balloon-expandable transcatheter aortic valve replacement

2013

Background— Aortic root rupture is a major concern with balloon-expandable transcatheter aortic valve replacement (TAVR). We sought to identify predictors of aortic root rupture during balloon-expandable TAVR by using multidetector computed tomography. Methods and Results— Thirty-one consecutive patients who experienced left ventricular outflow tract (LVOT)/annular/aortic contained/noncontained rupture during TAVR were collected from 16 centers. A caliper-matched sample of 31 consecutive patients without annular rupture, who underwent pre-TAVR multidetector computed tomography served as a control group. Multidetector computed tomography assessment included short- and long-axis diameters an…

Malemedicine.medical_specialtyCardiac CatheterizationTranscatheter aorticAortic rootmedicine.medical_treatmentAortic Rupturemultidetector computed tomographySettore MED/11 - Malattie dell'Apparato CardiovascolareCohort StudiesValve replacementPredictive Value of TestsRisk FactorsPhysiology (medical)Internal medicineMultidetector computed tomographymedicine80 and overVentricular outflow tractHumanscardiovascular diseasesannular calcification; annular rupture; multidetector computed tomography; transcatheter heart valves; Aged; Aged 80 and over; Angioplasty Balloon; Aortic Rupture; Aortic Valve; Aortic Valve Stenosis; Calcinosis; Cohort Studies; Female; Heart Valve Prosthesis Implantation; Humans; Logistic Models; Male; Predictive Value of Tests; Risk Factors; Tomography X-Ray Computed; Cardiac CatheterizationTomographyAgedAged 80 and overHeart Valve Prosthesis Implantationbusiness.industrySinotubular JunctionAngioplastyCalcinosisAortic Valve Stenosismedicine.diseaseX-Ray ComputedBalloon expandable stentLogistic Modelstranscatheter heart valvesAortic ValveCardiologycardiovascular systemannular ruptureFemaleRadiologyCardiology and Cardiovascular MedicinebusinessTomography X-Ray ComputedAngioplasty BalloonBalloonCalcificationannular calcification
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Implantation of Gore-Tex chordae on aortic valve leaflet to treat prolapse using "the chordae technique": surgical aspects and clinical results.

2008

Background Repair of prolapsed aortic valve leaflets has been considered a challenging technique for cardiac surgeons. In this paper we describe our surgical approach, "the chordae technique." It consists of the correction of aortic cusp prolapse by shortening the free margin length and of an adjustment of the leaflets coaptation height by anchoring the prolapsing cusp to the aortic wall at the sinotubular junction level. Methods Between February 2003 and December 2006, 26 patients with one or more prolapsed aortic leaflets underwent surgical repair using the new approach. The mean age of patients was 55 ± 10 years. There were 10 (38.5%) patients with grade II aortic valve regurgitation, 4 …

Pulmonary and Respiratory MedicineAortic valveMalemedicine.medical_specialtyAortic Valve InsufficiencyComorbidityAortic aneurysmPostoperative ComplicationsInternal medicinemedicineHumanscardiovascular diseasesCardiac skeletonPolytetrafluoroethyleneAortic valve regurgitationAgedSurgical repairAortic Valve ProlapseHeart Valve Prosthesis ImplantationAortic Aneurysm Thoracicbusiness.industrySinotubular JunctionSuture TechniquesMiddle Agedmedicine.diseaseCombined Modality TherapySurgerymedicine.anatomical_structureCardiothoracic surgeryAortic ValveHeart Valve ProsthesisCirculatory systemcardiovascular systemCardiologyChordae TendineaeSurgeryFemaleCardiology and Cardiovascular MedicinebusinessEchocardiography TransesophagealFollow-Up StudiesThe Annals of thoracic surgery
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New Technique for Aortic Valve Functional Annulus Reshaping Using a Handmade Prosthetic Ring

2011

Background Despite a wide development in aortic leaflets repair techniques, aortic valve annuloplastic procedures are still poorly investigated. We present our aortic valve annuloplastic system consisting of a handmade prosthetic ring with 2 components for reshaping the aortic annulus and sinotubular junction (STJ) and illustrates our surgical approach and clinical results. Methods Since February 2003, 45 patients with aortic valve regurgitation underwent aortic annuloplasty using the new ring. Mean patient age was 58 ± 16 years (range, 46 to 76 years). The ring has 2 components: a circular ring used to undersize the circumference of the aortoventricular junction and 3-crown-like shape ring…

Pulmonary and Respiratory MedicineAortic valveMalemedicine.medical_specialtymedicine.medical_treatmentAortic Valve InsufficiencyRegurgitation (circulation)Ring (chemistry)Prosthesis DesignInternal medicinemedicineVentricular outflow tractHumansCardiac skeletonAortic valve regurgitationAgedHeart Valve Prosthesis Implantationbusiness.industryAortic valve annulus reshapingSinotubular JunctionStentSettore MED/23 - Chirurgia CardiacaMiddle Agedmedicine.diseaseSurgerymedicine.anatomical_structureAortic ValveHeart Valve Prosthesiscardiovascular systemCardiologySurgeryFemaleCardiology and Cardiovascular Medicinebusiness
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