Search results for "Catheter"

showing 10 items of 482 documents

A new thrombectomy catheter device (AngioJet) for the disruption of thrombi: An in vitro study

1999

In this study we examined a new thrombectomy catheter device. Different kinds of in vitro generated thrombi and cadaver thrombi were disrupted in test tubes. The mean disruption rate (and disruption time for 1 g of thrombus) was 225 +/- 65 mg/sec (5 +/- 2 sec) for whole-blood, 117 +/- 60 mg/sec (12 +/- 9 sec) for fibrin, 41 +/- 18 mg/sec (30 +/- 18 sec) for mixed, 70 +/- 42 mg/sec (17 +/- 5 sec) for unorganized, 45 +/- 8 mg/sec (22 +/- 4 sec) for partly, and 5 +/- 1 mg/sec (216 +/- 29 sec) for completely organized cadaver thrombi (P0.05). More than 99% of fragmented particles of whole-blood thrombi were 0-12 microm in diameter. The particle size of fibrin, mixed, and cadaver thrombi was sim…

medicine.medical_specialtyTime Factorsmedicine.medical_treatmentIn Vitro TechniquesFibrinCatheterizationCadavermedicineHumansRadiology Nuclear Medicine and imagingParticle SizeThrombusThrombectomybiologybusiness.industryCatheter deviceThrombosisEquipment DesignGeneral MedicineThrombolysismedicine.diseaseThrombosisPulmonary embolismSurgerymedicine.anatomical_structureEmbolismbiology.proteinPulmonary EmbolismCardiology and Cardiovascular MedicineNuclear medicinebusinessArteryCatheterization and Cardiovascular Interventions
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Successful transcatheter aortic valve-in-valve implantation in a patient having a chronic type A aortic dissection

2017

medicine.medical_specialtyTranscatheter aortic030204 cardiovascular system & hematologyTranscatheter Aortic Valve Replacement03 medical and health sciencesImaging Three-Dimensional0302 clinical medicineInternal medicineHumansMedicineAgedAortic dissectionAortic Aneurysm Thoracicbusiness.industryAngiographyAortic Valve Stenosis030229 sport sciencesmedicine.diseaseEchocardiography DopplerValve in valveAortic ValveHeart Valve ProsthesisChronic DiseaseCardiologyFemaleTomography X-Ray ComputedCardiology and Cardiovascular MedicinebusinessEuropean Heart Journal
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P4500Prognostic value of galectin-3 according to carbohydrate antigen 125 in transcatheter aortic valve implantation

2018

medicine.medical_specialtyTranscatheter aorticGalectin-3business.industryUrologymedicineCardiology and Cardiovascular MedicinebusinessValue (mathematics)Carbohydrate antigenEuropean Heart Journal
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Surgery for Transcatheter Aortic Valve Replacement Endocarditis—A Single-Center Series

2019

medicine.medical_specialtyTranscatheter aorticValve replacementbusiness.industrymedicine.medical_treatmentmedicineEndocarditisSingle Centerbusinessmedicine.diseaseSurgeryThe Thoracic and Cardiovascular Surgeon
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Rationale and design of the Dapagliflozin after Transcatheter Aortic Valve Implantation (DapaTAVI) randomized trial.

2021

Aims Despite aortic stenosis (AS) relief, patients undergoing transcatheter aortic valve implantation (TAVI) are at increased risk of developing heart failure (HF) within first months of intervention. Sodium-glucose co-transporter 2 (SGLT-2) inhibitors have been shown to reduce the risk of HF hospitalization in individuals with diabetes mellitus (DM), reduced left ventricular ejection fraction (LVEF) and chronic kidney disease (CKD). However, the effect of SGLT-2 inhibitors on outcomes after TAVI is unknown. The Dapagliflozin after Transcatheter Aortic Valve Implantation (DapaTAVI) trial is designed to assess the clinical benefit and safety of the SGLT-2 inhibitor dapagliflozin in patients …

medicine.medical_specialtyTranscatheter aorticVentricular Function Leftlaw.inventionTranscatheter Aortic Valve Replacementchemistry.chemical_compoundRandomized controlled trialGlucosideslawInternal medicineDiabetes mellitusmedicineHumansProspective StudiesDapagliflozinBenzhydryl CompoundsHeart FailureEjection fractionbusiness.industryStroke VolumeAortic Valve Stenosismedicine.diseaseStenosisTreatment OutcomechemistryHeart failureAortic ValveCardiologyCardiology and Cardiovascular MedicinebusinessKidney diseaseEuropean journal of heart failureReferences
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Transcatheter embolization of a large aberrant systemic artery to an intralobar pulmonary sequestration using an Amplatzer vascular plug in an adoles…

2017

International audience

medicine.medical_specialtyTranscatheter embolizationVascular plug[SDV.IB.MN]Life Sciences [q-bio]/Bioengineering/Nuclear medicine030204 cardiovascular system & hematology[ SDV.IB.MN ] Life Sciences [q-bio]/Bioengineering/Nuclear medicinePulmonary sequestration03 medical and health sciences0302 clinical medicineText mining[INFO.INFO-IM]Computer Science [cs]/Medical ImagingmedicineRadiology Nuclear Medicine and imagingEndovascular treatment030212 general & internal medicineLetter to the EditorGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)ComputingMilieux_MISCELLANEOUS[ INFO.INFO-IM ] Computer Science [cs]/Medical Imagingbusiness.industrymedicine.diseaseSurgerymedicine.anatomical_structureRadiologybusinessArtery
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Catheter-based closure of a large atrial septal defect with inferior rim deficiency using pulmonary vein slide-out assisted implantation technique: a…

2021

Abstract Background Transcatheter approach for large and complex atrial septal defects may represent a therapeutic challenge, particularly when the postero-inferior rim is deficient and floppy. Case summary Here, we describe a successful catheter-based closure of a large (>30 mm) secundum atrial septal defect associated with postero-inferior rim deficiency in a 35-year-old female with congestive heart failure using pulmonary vein slide-out assisted implantation technique. Discussion Inferior–posterior rim deficiency is a well-known risk factor for device instability or embolization. Transcatheter closure may represent a safe and effective alternative to the traditional surgical appro…

medicine.medical_specialtyTransoesophageal echocardiographybusiness.industrymedicine.medical_treatmentSeptum secundummedicine.diseaseAtrial septal defectsPulmonary veinSurgeryCathetermedicine.anatomical_structureAtrial septal rims deficiencyHeart failureCase reportmedicinePatent foramen ovaleAtrial septal defectAcademicSubjects/MED00200Transcatheter closureEmbolizationAtrium (heart)Atrial septal defect Atrial septal rims deficiency Case report Transcatheter closure Transoesophageal echocardiographyCardiology and Cardiovascular Medicinebusiness
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Impact of Structural Heart Disease on the Acute Complication Rate in Atrial Fibrillation Ablation: Results from the German Ablation Registry

2013

Acute Complication Rate in AF Ablation Introduction Catheter ablation (CA) has emerged as a widespread therapeutic option in the treatment of atrial fibrillation (AF). Currently, no safety data with regard to the impact of the underlying structural heart diseases (SHD) are available. We sought to assess the risk for acute and long-term complications during CA of AF in relation to underlying SHD. Methods and Results We included 6,211 patients in a prospective registry undergoing CA of AF in 41 nationwide centers. All patients were divided into 4 groups according to the underlying heart disease: No SHD (69.4%), hypertensive heart disease (HHD) (12.0%), coronary artery disease (CAD) (15.1%), a…

medicine.medical_specialtyUnivariate analysisHeart diseasebusiness.industrymedicine.medical_treatmentCardiomyopathyAtrial fibrillationCatheter ablationOdds ratiomedicine.diseaseHypertensive heart diseaseCoronary artery diseasePhysiology (medical)Internal medicinemedicineCardiologyCardiology and Cardiovascular MedicinebusinessJournal of Cardiovascular Electrophysiology
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Coronary Angioplasty in Unstable Angina

1990

When Gruntzig introduced the revolutionary method of percutaneous transluminal coronary angioplasty (PTCA) for the treatment of coronary artery stenoses, he initially devoted this technique only to patients with stable angina pectoris [8]. Very soon, however, it was discovered simultaneously by Williams et al. [19] and by our group [12] that this method can also be used in patients with unstable angina pectoris. The earliest experiences with PTCA in 1980 were published by our two groups (Table 1). In these series the average degree of stenosis was somewhat lower than that today, while the residual stenosis after treatment was slightly higher. The very rough balloons and guiding catheters av…

medicine.medical_specialtyUnstable anginabusiness.industrymedicine.medical_treatmentResidual stenosismedicine.diseaseStable anginaStenosisCathetermedicine.anatomical_structureAngioplastyInternal medicinemedicineCardiologyIn patientcardiovascular diseasesbusinessArtery
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Percutaneous Nephrostomy Catheter Misplacement into Inferior Vena Cava in a Patient with a Horseshoe Kidney

2020

Background: Percutaneous nephrostomy (PCN) is commonly indicated for upper urinary tract drainage in case of obstruction or fistula. Only a few cases of PCN catheter misplacement into the inferior vena cava (IVC) have been published. Case Presentation: We report a case of a PCN catheter misplaced into the IVC through a fistula between the urinary tract and an ipsilateral renal vein in a patient with horseshoe kidney, after bedside urgent replacement for hemorrhage and hemorrhagic shock. Conclusion: Although a nephrostomy Foley catheter can be used for adequate urinary drainage and hemostatic purposes after percutaneous nephrolithotomy, its placement should be always verified through antegra…

medicine.medical_specialtyUrologymedicine.medical_treatmentFistula030232 urology & nephrologyFoley cathetercomplicationCase ReportsInferior vena cava03 medical and health sciences0302 clinical medicinemedicinebusiness.industryemergencyhorseshoe kidneyHorseshoe kidneymedicine.diseaseSurgeryCatheterPercutaneous nephrostomymedicine.vein030220 oncology & carcinogenesisNephrostomycardiovascular systempercutaneous nephrostomyRenal veinhemorrhagebusiness
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