2,050 results match your criteria medtronic minneapolis

Structural abnormalities after aortic root replacement with stentless xenograft.

J Thorac Cardiovasc Surg 2021 May 12. Epub 2021 May 12.

Department of Cardiothoracic Surgery, The Heart Center, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark.

Objective: In complex and high-risk aortic root disease, the porcine Freestyle stentless bioprosthesis (Medtronic Inc, Minneapolis, Minn) is an important surgical treatment option. We aimed to determine prevalence and clinical effect of structural and functional abnormalities after full-root Freestyle implantation.

Methods: Our cross-sectional 2-center study combined with clinical follow-up included 253 patients with full-root Freestyle bioprostheses implanted from 1999 to 2017. Read More

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Risk of atrioesophageal fistula with cryoballoon ablation of atrial fibrillation.

Heart Rhythm O2 2020 Aug 28;1(3):173-179. Epub 2020 May 28.

Virginia Commonwealth University Medical Center, Richmond, Virginia.

Background: Although there are considerable data on the safety of cryoablation, data on the rare but severe complication of atrioesophageal fistula (AEF) following cryoballoon ablation are limited.

Objective: To report the global, user-reported incidence of AEF associated with cryoballoon ablation for the treatment of atrial fibrillation using Medtronic's complaint database.

Methods: User-reported cryoballoon ablation complications occurring between July 1, 2009, and March 31, 2019, were reviewed to identify cases of AEF. Read More

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What goes in may need to come out: Considerations in the extraction of a lumenless, fixed-screw permanent pacemaker lead.

Heart Rhythm O2 2020 Jun 11;1(2):160-163. Epub 2020 May 11.

Department of Cardiac Electrophysiology, University of California San Diego Medical Center, La Jolla, California.

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Three dimensional reconstruction of coronary artery stents from optical coherence tomography: experimental validation and clinical feasibility.

Sci Rep 2021 Jun 10;11(1):12252. Epub 2021 Jun 10.

Cardiovascular Biology and Biomechanics Laboratory, Cardiovascular Division, University of Nebraska Medical Center, 982265 Nebraska Medical Center, Omaha, NE, 68198, USA.

The structural morphology of coronary stents (e.g. stent expansion, lumen scaffolding, strut apposition, tissue protrusion, side branch jailing, strut fracture), and the local hemodynamic environment after stent deployment are key determinants of procedural success and subsequent clinical outcomes. Read More

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The Need for Perforator Treatment After VenaSeal and ClosureFast Endovenous Saphenous Vein Closure in CEAP 6 Patients.

J Vasc Surg Venous Lymphat Disord 2021 Jun 7. Epub 2021 Jun 7.

University of California San Francisco-Fresno, Fresno, CA.

Objectives: The authors have previously demonstrated that VenaSeal (Medtronic, Inc., Minneapolis, MN) adhesive, compared to radiofrequency ablation (RFA, ClosureFast, Medtronic, Inc., Minneapolis, MN), in treatment of refluxing saphenous veins in CEAP 6 limbs, results in shorter healing times of venous ulcers. Read More

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COVID-19 infection with delayed presentation of infective endocarditis of the prosthetic pulmonary valve.

Cardiol Young 2021 Jun 7:1-3. Epub 2021 Jun 7.

Department of Pediatric Cardiology, Max Superspeciality Hospital, Saket, New Delhi, India.

Pulmonary valve endocarditis after transcatheter pulmonary valve implantation has been an emerging concern due to the increasing prevalence of transcatheter placement of pulmonary valve in the treatment of residual right ventricular outflow tract stenosis or regurgitation. Pulmonary valve endocarditis is a dreadful complication of transcatheter pulmonary valve implantation that have been reported with Melody valve (Medtronic, Inc., Minneapolis, MN) and Edward Sapien valve (Edwards Life Sciences, Irvine, CA) till date. Read More

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Detection of Atrial Fibrillation After Central Retinal Artery Occlusion.

Stroke 2021 Jun 7:STROKEAHA120033934. Epub 2021 Jun 7.

Department of Neurology, New York University-Langone School of Medicine, New York City, NY (J.T., S.Y.).

Background: Central retinal artery occlusion (CRAO) causes sudden, irreversible blindness and is a form of acute ischemic stroke. In this study, we sought to determine the proportion of patients in whom atrial fibrillation (AF) is detected by extended cardiac monitoring after CRAO.

Methods: We performed a retrospective, observational cohort study using data from the Optum deidentified electronic health record of 30. Read More

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Five-Year Clinical and Quality of Life Outcomes From the CoreValve US Pivotal Extreme Risk Trial.

Circ Cardiovasc Interv 2021 Jun 7:CIRCINTERVENTIONS120010258. Epub 2021 Jun 7.

University of Missouri-Kansas City (S.V.A., D.J.C.).

Background: Older adults with comorbidities who are at extreme risk for surgical aortic valve replacement may be appropriate candidates for transcatheter aortic valve replacement (TAVR). We present the 5-year clinical, echocardiographic, and health status outcomes of such patients treated with CoreValve self-expanding supra-annular TAVR.

Methods: The CoreValve US Extreme Risk Pivotal Trial was a prospective, nonrandomized, single-arm clinical trial of TAVR at 41 sites in the United States. Read More

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Near-infrared spectroscopy device selection affects intervention management for cerebral desaturation during cardiopulmonary bypass surgery.

Gen Thorac Cardiovasc Surg 2021 Jun 6. Epub 2021 Jun 6.

Department of Cardiovascular Surgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0375, Japan.

Objective: Currently, several near-infrared spectroscopy oximetry devices are used for detecting cerebral ischemia during cardiopulmonary bypass (CPB) surgery. We investigated whether two different models of near-infrared spectroscopy oximetry devices affect the assessment of cerebral ischemia and its management during CPB.

Methods: From January 2017 to August 2017, 70 adult cardiovascular surgery cases were randomly assigned to 1 of 2 different near-infrared spectroscopy oximetry devices. Read More

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Cumulative burden of clinically significant aortic stenosis in community-dwelling older adults.

Heart 2021 Jun 2. Epub 2021 Jun 2.

Cardiology Section, San Francisco VA Health Care System, San Francisco, California, USA

Objectives: Current estimates of aortic stenosis (AS) frequency have mostly relied on cross-sectional echocardiographic or longitudinal administrative data, making understanding of AS burden incomplete. We performed case adjudications to evaluate the frequency of AS and assess differences by age, sex and race in an older cohort with long-term follow-up.

Methods: We developed case-capture methods using study echocardiograms, procedure and diagnosis codes, heart failure events and deaths for targeted review of medical records in the Cardiovascular Health Study to identify moderate or severe AS and related procedures or hospitalisations. Read More

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Effect of Long-term Continuous Cardiac Monitoring vs Usual Care on Detection of Atrial Fibrillation in Patients With Stroke Attributed to Large- or Small-Vessel Disease: The STROKE-AF Randomized Clinical Trial.

JAMA 2021 06;325(21):2169-2177

Department of Neurology, Massachusetts General Hospital, Boston.

Importance: Patients with ischemic stroke attributed to large- or small-vessel disease are not considered at high risk for atrial fibrillation (AF), and the AF incidence rate in this population is unknown.

Objectives: To determine whether long-term cardiac monitoring is more effective than usual care for AF detection in patients with stroke attributed to large- or small-vessel disease through 12 months of follow-up.

Design, Setting, And Participants: The STROKE-AF trial was a randomized (1:1), multicenter (33 sites in the US) clinical trial that enrolled 496 patients between April 2016 and July 2019, with primary end point follow-up through August 2020. Read More

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In-Stent CTO Percutaneous Coronary Intervention: Individual Patient Data Pooled Analysis of 4 Multicenter Registries.

JACC Cardiovasc Interv 2021 May 19. Epub 2021 May 19.

Minneapolis Heart Institute Foundation, Minneapolis, Minnesota, USA.

Objectives: The authors sought to examine the outcomes of percutaneous coronary intervention (PCI) for in-stent restenosis (ISR) chronic total occlusions (CTOs).

Background: The outcomes of PCI for ISR CTOs have received limited study.

Methods: The authors examined the clinical and angiographic characteristics and procedural outcomes of 11,961 CTO PCIs performed in 11,728 patients at 107 centers in Europe, North America, Latin America, and Asia between 2012 and 2020, pooling patient-level data from 4 multicenter registries. Read More

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Complications and failure modes of covered coronary stents: Insights from the MAUDE database.

Cardiovasc Revasc Med 2021 Apr 8. Epub 2021 Apr 8.

Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, MN, United States of America. Electronic address:

Background: Data on the mechanisms of failure of covered coronary stents [Graftmaster, PK Papyrus] are limited.

Methods: We queried the "Manufacturer and User Facility Device Experience" (MAUDE) database between August 2018 (when the PK Papyrus stent was FDA approved) and December 2020 for reports on covered coronary stents.

Results: We identified 299 reports in the MAUDE database (after excluding duplicates, peripheral vascular reports, and incomplete records) (Graftmaster n = 225, PK Papyrus n = 74). Read More

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Implantable Cardioverter-Defibrillator Shocks During COVID-19 Outbreak.

J Am Heart Assoc 2021 06 28;10(11):e019708. Epub 2021 May 28.

Cardiac Rhythm Heart FailureMedtronic, Inc Minneapolis MN.

Background COVID-19 was temporally associated with an increase in out-of-hospital cardiac arrests, but the underlying mechanisms are unclear. We sought to determine if patients with implantable defibrillators residing in areas with high COVID-19 activity experienced an increase in defibrillator shocks during the COVID-19 outbreak. Methods and Results Using the Medtronic (Mounds View, MN) Carelink database from 2019 and 2020, we retrospectively determined the incidence of implantable defibrillator shock episodes among patients residing in New York City, New Orleans, LA, and Boston, MA. Read More

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A single setup approach for the MRI-based measurement and validation of the transfer function of elongated medical implants.

Magn Reson Med 2021 May 25. Epub 2021 May 25.

Computational Imaging Group for MRI diagnostics and therapy, Center for Image Sciences UMC Utrecht, Utrecht, the Netherlands.

Purpose: To propose a single setup using the MRI to both measure and validate the transfer function (TF) of linear implants. Conventionally, the TF of an implant is measured in one bench setup and validated using another.

Methods: It has been shown that the TF can be measured using MRI. Read More

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Operative time and learning curve between fluoroscopy-based instrument tracking and robot-assisted instrumentation for patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF).

Clin Neurol Neurosurg 2021 Jul 19;206:106698. Epub 2021 May 19.

Duke University, Department of Neurological Surgery, Durham, NC, USA.

Introduction: Instrument-navigation modalities including CT-guided and robot-assisted methods claim both efficacy and accuracy when applied to spine surgery, yet often increase setup and operating times which can translate to increased costs. To see the impact of different technologies on surgical efficiency, we studied the impact of a single surgeon's experience with a multitude of instrument navigational technologies.

Methods: Consecutive patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) were analyzed. Read More

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Laser for balloon uncrossable and undilatable chronic total occlusion interventions.

Int J Cardiol 2021 May 19. Epub 2021 May 19.

Minneapolis Heart Institute and Minneapolis Heart Institute Foundation, Abbott Northwestern Hospital, Minneapolis, MN, USA. Electronic address:

Background: There is limited information on use of laser in complex percutaneous coronary interventions (PCI). We examined the impact of laser on the outcomes of balloon uncrossable and balloon undilatable chronic total occlusion (CTO) PCI.

Methods: We reviewed baseline clinical and angiographic characteristics and procedural outcomes of 4845 CTO PCIs performed between 2012 and 2020 at 32 centers. Read More

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More in, better out? Successful valve-in-valve procedure of an iatrogenic ventricular septal defect following transcatheter aortic valve replacement: a case report.

Eur Heart J Case Rep 2021 May 12;5(5):ytab097. Epub 2021 May 12.

Schuechtermann-Clinic, Department of Cardiology, Heart-Center Osnabrueck-Bad Rothenfelde, Ulmenallee 5-11, D-49214 Bad Rothenfelde, Germany.

Background: A rare, but serious, complication following transcatheter aortic valve replacement (TAVR) is the occurrence of an iatrogenic ventricular septal defect (VSD).

Case Summary: We describe a case of an 80-year-old female who was referred with severe aortic stenosis for TAVR. Following thorough evaluation, the heart team consensus was to proceed with implantation via a transapical approach of an ACURATE neo M 25 mm valve (Boston Scientific, Natick, MA, USA). Read More

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Incidence and risk factors for sustained hepatic function toxicity 6 months after radioembolization: analysis of the radiation-emitting sir-spheres in non-resectable liver tumor (RESIN) registry.

J Gastrointest Oncol 2021 Apr;12(2):639-657

Sarah Cannon Research Institute, Nashville, TN, USA.

Background: To quantify rates and risk factors for toxicity after hepatic radioembolization using resin yttrium-90 microspheres.

Methods: Radiation-Emitting SIR-Spheres in Non-resectable liver tumor (RESIN) registry enrollees were reviewed with 614 patients included. Mean patient age was 63. Read More

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Ultrasound renal denervation for hypertension resistant to a triple medication pill (RADIANCE-HTN TRIO): a randomised, multicentre, single-blind, sham-controlled trial.

Lancet 2021 May 14. Epub 2021 May 14.

Columbia University Medical Center/New York-Presbyterian Hospital and the Cardiovascular Research Foundation, New York, NY, USA.

Background: Endovascular renal denervation reduces blood pressure in patients with mild-to-moderate hypertension, but its efficacy in patients with true resistant hypertension has not been shown. We aimed to assess the efficacy and safety of endovascular ultrasound renal denervation in patients with hypertension resistant to three or more antihypertensive medications.

Methods: In a randomised, international, multicentre, single-blind, sham-controlled trial done at 28 tertiary centres in the USA and 25 in Europe, we included patients aged 18-75 years with office blood pressure of at least 140/90 mm Hg despite three or more antihypertensive medications including a diuretic. Read More

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Tortuous inferior vena cava with severe scoliosis: An impediment to successful leadless pacemaker implantation.

J Cardiol Cases 2021 May 19;23(5):218-220. Epub 2020 Nov 19.

Division of Cardiology, Internal Medicine III, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ward, Hamamatsu 431-3192, Japan.

Both a multicenter cohort and a post-approval registry of the Micra™ transcatheter pacemaker (Medtronic, Minneapolis, MN, USA) reported high successful implantation rates (>99%) with long-term stability of electrical performance and long-term safety. Therefore, there has been little discussion on the causes of cases of failure in terms of anatomical findings. We report a case of failure of implantation of the Micra because of a tortuous inferior vena cava (IVC) secondary to severe scoliosis. Read More

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Static balloon atrial septostomy in Japan in shortage of standard balloon septostomy catheter.

J Cardiol 2021 May 13. Epub 2021 May 13.

Working Group on Balloon Atrial Septostomy Catheter, Japanese Society of Congenital Interventional Cardiology; Pediatric Heart Disease and Adult Congenital Heart Disease Center, Showa University Hospital, Tokyo, Japan.

Background: The supply of Rashkind balloon atrial septostomy (BAS) catheters (Medtronic, Minneapolis, MN, USA) has suddenly been discontinued in the world due to its recall. Consequently, Japan fell into a critical shortage of standard BAS catheters. Although the use of static BAS is off-label in Japan, its importance is increasing in such a situation. Read More

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Ambulatory activity in stroke survivors associated with functional outcome and quality of life: an observational cohort study.

Ann Phys Rehabil Med 2021 May 10:101540. Epub 2021 May 10.

The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Victoria, Australia; Department of Neurology, Austin Health, Heidelberg, Victoria, Australia.

Background: Physical activity is beneficial in stroke prevention and recovery. Understanding activity dynamics and its effect on outcome after stroke is important to improve recommendations and develop interventions.

Objectives: We examined serial changes in daily ambulatory activity (AA) averaged over 1 week in people with subacute to chronic stroke and its association with functional outcome (modified Rankin scale [mRS]) and quality of life (EQ-5D-3L). Read More

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Safety and Tolerability of Burst-Cycling Deep Brain Stimulation for Freezing of Gait in Parkinson's Disease.

Front Hum Neurosci 2021 26;15:651168. Epub 2021 Apr 26.

Department of Neurology, Norman Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, United States.

: Freezing of gait (FOG) is a common symptom in Parkinson's disease (PD) and can be difficult to treat with dopaminergic medications or with deep brain stimulation (DBS). Novel stimulation paradigms have been proposed to address suboptimal responses to conventional DBS programming methods. Burst-cycling deep brain stimulation (BCDBS) delivers current in various frequencies of bursts (e. Read More

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Histological evaluation of acute ischemic stroke thrombi may indicate the occurrence of vessel wall injury during mechanical thrombectomy.

J Neurointerv Surg 2021 May 11. Epub 2021 May 11.

Department of Neurology, Grady Memorial Hospital, Atlanta, Georgia, USA.

Background: Several animal studies have demonstrated that mechanical thrombectomy (MT) for acute ischemic stroke (AIS) may cause vessel wall injury (VWI). However, the histological changes in human cerebral arteries following MT are difficult to determine.

Objective: To investigate the occurrence of VWI during MT by histological and immunohistochemical evaluation of AIS clots. Read More

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Low Rate of Intrathecal Baclofen Pump Catheter-Related Complications: Long-Term Study in Over 100 Adult Patients Associated With Reinforced Catheter.

Neuromodulation 2021 May 11. Epub 2021 May 11.

Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.

Objectives: Intrathecal baclofen (ITB) is a cost-effective therapy for patients with severe spasticity. The most common complications are catheter-related complications (CRCs) including kinking/occlusion, blockage, migration, fracture, disconnection, and CSF leak. Our objective was to determine the CRC rate in a large cohort of adults with newly implanted ITB pump systems with polymer reinforced silicone catheters. Read More

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Durability of Pulmonary Valve Replacement with Large Diameter Stented Porcine Bioprostheses.

Semin Thorac Cardiovasc Surg 2021 May 8. Epub 2021 May 8.

Departments of Cardiothoracic Surgery, Stanford University School of Medicine; Pediatrics, Stanford University School of Medicine. Electronic address:

There is limited information about durability of large diameter porcine bioprostheses implanted for pulmonary valve replacement (PVR). We studied patients who underwent surgical PVR from 2002-2019 with a stented porcine bioprosthetic valve (BPV) with a labeled size ≥27 mm. The primary outcome was freedom from reintervention. Read More

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The effects of vertically integrated care on health care use and outcomes in inpatient rehabilitation facilities.

Health Serv Res 2021 May 9. Epub 2021 May 9.

David Geffen School of Medicine at UCLA, California, Los Angeles, USA.

Objective: To understand the effects of receiving vertically integrated care in inpatient rehabilitation facilities (IRFs) on health care use and outcomes.

Data Sources: Medicare enrollment, claims, and IRF patient assessment data from 2012 to 2014.

Study Design: We estimated within-IRF differences in health care use and outcomes between IRF patients admitted from hospitals vertically integrated with the IRF (parent hospital) vs patients admitted from other hospitals. Read More

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Complications and failure modes of polymer-jacketed guidewires; insights from the MAUDE database.

Cardiovasc Revasc Med 2021 Apr 28. Epub 2021 Apr 28.

Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, MN, USA. Electronic address:

Background: The modes of failure of coronary polymer-jacketed guidewires have received limited study.

Methods: We queried the Manufacturer and User Facility Device Experience (MAUDE) database between January 2011 and December 2020 for reports on coronary polymer-jacketed guidewires and retrieved 254 reports.

Results: The most common failure mode was failure of the guidewire to cross (36. Read More

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