25 results match your criteria: "Philadelphia (D.M.K.); and University of Rochester School of Medicine and Dentistry[Affiliation]"

Patent Foramen Ovale Closure in Older Patients With Stroke: Patient Selection for Trial Feasibility.

Neurology

May 2024

From the Predictive Analytics and Comparative Effectiveness (PACE) Center (A.Y.W., J.N., B.K., D.K., D.M.K.), Institute for Clinical Research and Health Policy Studies (ICRHPS), Tufts Medical Center, Boston, MA; Department of Clinical Neurology (P.M.R., L.L., S.M., L.E.S.), Oxford University, London, United Kingdom; Comprehensive Stroke Center and Department of Neurology (J.L.S.), David Geffen School of Medicine, University of California, Los Angeles; Comprehensive Stroke Center (S.E.K.), Department of Neurology, University of Pennsylvania Medical Center, Philadelphia; Division of Cardiology (J.C.), Department of Medicine, University of Colorado Denver, Aurora; Université Paris Cité (J.-L.M.), Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266; GHU-Paris Psychiatrie et Neurosciences (J.-L.M.), Hôpital Sainte Anne; Département de Physiologie (G.D.), Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris, Université Paris-Est Créteil (UPEC); Centre d'Investigations Cliniques (G.C.), Unité de Recherche Clinique, Hôpital Européen Georges-Pompidou, Assistance Publique-Hôpitaux de Paris, France; Department of Neurology (A.J.F.), Case Western Reserve University, Cleveland, OH; Division of Cardiovascular Medicine (H.C.H., B.L.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Population Health (P.J.), University of Oxford, United Kingdom; Department of Neurology (J.S.K.), Gangneung Asan Hospital, University of Ulsan College of Medicine; Department of Cardiology (P.H.L.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Neurology (H.P.M.), Bern University Hospital; Medical Faculty (B.M.), University of Bern, Switzerland; Cardiology Department (M.R.), Weill Cornell Medical Center, Cornell, NY; Division of Cardiology (R.W.S.), Department of Medicine, UTHealth/McGovern Medical School and The Memorial Hermann Heart and Vascular Institute, Houston, TX; Department of Cardiology (L.S.), Rigshospitalet, Copenhagen University Hospital, Denmark; Division of Cardiology (J.-K.S.), Asan Medical Center Heart Institute, University of Ulsan College of Medicine, Seoul, South Korea; BHF Cardiovascular Epidemiology Unit (E.D.A.), Department of Public Health and Primary Care, University of Cambridge; Victor Phillip Dahdaleh Heart and Lung Research Institute (E.D.A.), BHF Centre of Research Excellence, School of Clinical Medicine, Addenbrooke's Hospital; NIHR Blood and Transplant Research Unit in Donor Health and Behaviour (E.D.A.), all University of Cambridge; Health Data Research UK Cambridge (E.D.A.), Wellcome Genome Campus and University of Cambridge, Hinxton; University of Cambridge (E.D.A.), United Kingdom; Health Data Science Centre (E.D.A.), Human Technopole, Milan, Italy; Department of Medicine (M.D., S.H.), Columbia University, College of Physicians and Surgeons, New York, NY; Department of Neurology (M.S.V.E.), Vagelos College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY; Division of Neurology-Stroke Program (C.J.), Department of Medicine, University Health Network, Toronto Western Hospital, Ontario, Canada; Stroke Center (P.M.), Neurology Service, Lausanne University Hospital; Department of Neurology (M.-L.M., K.N.), University of Bern; Department of Neurology (M.-L.M.), Stadtspital Zürich; Department of Neurology and Stroke Centre (K.N.), Cantonal Hospital Aarau, Switzerland; Sapienza University of Rome (F.P.), Italy; Department of Neurology (J.S.), Hospital Universitari de Girona Dr Josep Trueta - IDIBGI, Spain; Department of Neurology and Stroke Center (C.W.), University Duisburg-Essen, Germany; Department of Public Health (D.K.), Erasmus University Medical Center, Rotterdam, the Netherlands; and Department of Neurology (D.E.T.), Tufts Medical Center/Tufts University School of Medicine, Boston, MA.

Background And Objectives: Whether patent foramen ovale (PFO) closure benefits older patients with PFO and cryptogenic stroke is unknown because randomized controlled trials (RCTs) have predominantly enrolled patients younger than 60 years of age. Our objective was to estimate anticipated effects of PFO closure in older patients to predict the numbers needed to plan an RCT.

Methods: Effectiveness estimates are derived from major observational studies (Risk of Paradoxical Embolism [RoPE] Study and Oxford Vascular Study, together referred to as the "RoPE-Ox" database) and all 6 major RCTs (Systematic, Collaborative, PFO Closure Evaluation [SCOPE] Consortium).

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The Role of Imaging for GI Bleeding: ACG and SAR Consensus Recommendations.

Radiology

March 2024

From the Department of Gastroenterology and Hepatology, University of Chicago Pritzker School of Medicine, Chicago, Ill (N.S.); Department of Gastroenterology and Hepatology (D.M.K.) and Department of Radiology (F.F.G., H.V.N.), Thomas Jefferson University Hospital, Philadelphia, Pa; Department of Gastroenterology and Hepatology (D.H.B.) and Department of Radiology (M.L.W., A.K., J.L.F.), Mayo Clinic, 200 First St SW, Rochester, MN 55905; Department of Gastroenterology and Hepatology (M.L.) and Department of Radiology (B.R.D.), NYU Langone Medical Center, New York, NY; Department of Gastroenterology and Hepatology, Mayo Clinic Arizona, Scottsdale, Ariz (J.A.L.); Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Mass (O.R.B., V.R.); Department of Radiology, Massachusetts General Hospital, Boston, Mass (M.S.G., M.A.A.); Department of Radiology, Boston University Medical Center, Boston, Mass (J.A.S., A.G.); Department of Radiology, Asan Medical Center, Seoul, South Korea (S.H.P.); Department of Radiology, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI (D.C.Y., D.J.G.); Department of Radiology, Pontificia Universidad Católica de Chile, Santiago, Chile (A.H.); Department of Radiology, Duke University Medical Center, Durham, NC (B.C.A.); Department of Radiology, William Beaumont University Hospital, Royal Oak, Mich (F.S.); and Department of Radiology, Stanford University School of Medicine, Stanford, Calif (J.R.T.).

Article Synopsis
  • Gastrointestinal (GI) bleeding is the leading cause of GI-related hospitalizations in the U.S., making timely diagnosis and treatment essential for better patient outcomes and reduced healthcare costs.
  • Various radiologic techniques, such as CT angiography and MR enterography, are used to assess GI bleeding and work alongside GI endoscopy, although existing management guidelines can create confusion about their use.
  • An expert panel has reviewed these radiologic methods, discussing their performance, pros and cons compared to endoscopy, and providing consensus recommendations for their technical application in GI bleeding cases.
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Diffuse-type tenosynovial giant cell tumors' (D-TGCTs) intra- and extra-articular expansion about the knee often necessitates an anterior and posterior surgical approach to facilitate an extensive synovectomy. There is no consensus on whether two-sided synovectomies should be performed in one or two stages. This retrospective study included 191 D-TGCT patients from nine sarcoma centers worldwide to compare the postoperative short-term outcomes between both treatments.

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Article Synopsis
  • Viruses pose significant health challenges, leading to issues like respiratory infections, cancer, and neurological impairments, but virology research has developed vaccines and antivirals to mitigate these problems.
  • The COVID-19 pandemic has heightened public scrutiny of virology, especially regarding the safe conduct of research with human pathogens, leading to confusion and misinterpretation about the origins of SARS-CoV-2.
  • This article aims to clarify misconceptions by explaining gain-of-function research, the origins of SARS-CoV-2, and the regulatory frameworks in place, fostering informed discussions and emphasizing the need for balanced, evidence-based dialogue in virology.
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Article Synopsis
  • Viruses have historically caused serious health issues, including respiratory infections and cancer, leading to significant virology research that resulted in vaccines and antiviral treatments.
  • The COVID-19 pandemic highlighted the necessity for careful research on human pathogens, creating both concerns and confusion about the safety of virology work and the origins of SARS-CoV-2.
  • The article aims to clarify misunderstandings by explaining gain-of-function research, exploring the origins of SARS-CoV-2, and discussing regulatory oversight, while advocating for rational and evidence-based discussions to guide policy decisions in virology.
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Article Synopsis
  • Viruses pose significant health challenges, leading to various issues such as respiratory infections and cancer, prompting virology research to develop vaccines and antiviral treatments over the past 60+ years.
  • The COVID-19 pandemic has intensified focus on virology, bringing up safety concerns about research involving human pathogens and creating public confusion between safe research practices and the origins of SARS-CoV-2.
  • The article aims to clarify these issues by discussing gain-of-function research, the origins of SARS-CoV-2, and current regulatory frameworks, advocating for informed, balanced conversations to support necessary virology research.
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Previous studies have demonstrated low rates of seroconversion to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) messenger RNA (mRNA) vaccines in patients with chronic lymphocytic leukemia (CLL). In this national collaboration of 11 cancer centers in the United States, we aimed to further characterize and understand vaccine-induced immune responses, including T-cell responses, and the impact of CLL therapeutics (#NCT04852822). Eligible patients were enrolled in 2 cohorts (1) at the time of initial vaccination and (2) at the time of booster vaccination.

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Background: In REDUCE LAP-HF II (A Study to Evaluate the Corvia Medical, Inc IASD System II to Reduce Elevated Left Atrial Pressure in Patients With Heart Failure), implantation of an atrial shunt device did not provide overall clinical benefit for patients with heart failure with preserved or mildly reduced ejection fraction. However, prespecified analyses identified differences in response in subgroups defined by pulmonary artery systolic pressure during submaximal exercise, right atrial volume, and sex. Shunt implantation reduces left atrial pressures but increases pulmonary blood flow, which may be poorly tolerated in patients with pulmonary vascular disease (PVD).

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Background: In 2009, the American College of Cardiology and American Heart Association published Appropriate Use Criteria for Coronary Revascularization (AUC) to aid patient selection for percutaneous coronary intervention (PCI). The subsequent decline in inappropriate PCIs was interpreted as a success of AUC. However, there are concerns clinicians reclassify nonacute PCIs to acute indications to fulfill AUC.

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Practice advisory update summary: Patent foramen ovale and secondary stroke prevention: Report of the Guideline Subcommittee of the American Academy of Neurology.

Neurology

May 2020

From the Department of Neurology (S.R.M., S.E.K.), University of Pennsylvania School of Medicine, Philadelphia; Department of Neurology (G.S.G., L.R.), University of Kansas Medical Center, MO; Institute for Clinical Research and Health Policy Studies (D.M.K.), Tufts University School of Medicine, Boston, MA; Cardiology Section (J.R.K.), San Francisco Veterans Affairs Health Care System, and Departments of Medicine, and Epidemiology and Biostatistics (J.R.K.), University of California San Francisco; Division of Cardiology (S.H.), Columbia University Medical Center, New York; Department of Medicine (Cardiology) (J.D.C.), University of Colorado School of Medicine, Aurora; Department of Neurology (K.I.), New York University; and Department of Neurology (N.S.), Kaiser Permanente, Los Angeles, CA.

Objective: To update the 2016 American Academy of Neurology (AAN) practice advisory for patients with stroke and patent foramen ovale (PFO).

Methods: The guideline panel followed the AAN 2017 guideline development process to systematically review studies published through December 2017 and formulate recommendations.

Major Recommendations: In patients being considered for PFO closure, clinicians should ensure that an appropriately thorough evaluation has been performed to rule out alternative mechanisms of stroke (level B).

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Prospective Genotyping to Guide Antiplatelet Therapy Following Percutaneous Coronary Intervention: A Pragmatic Randomized Clinical Trial.

Circ Genom Precis Med

February 2020

Cardiovascular Medicine Division (W.M., A.N., C.C., K. Maslowski, G.C., T.K., S.A., J.H., R.L.W., H.C.H., D.M.K., J.G.), University of Pennsylvania Perelman School of Medicine, Philadelphia.

Background: loss-of-function alleles impair clopidogrel effectiveness after percutaneous coronary intervention, but the clinical impact of implementing genotyping in a real-world setting is unknown. The purpose of the study was to determine whether returning genotype results along with genotype-guided pharmacotherapy recommendations using a rapid turnaround test would change antiplatelet prescribing following percutaneous coronary intervention.The primary outcome was the rate of prasugrel or ticagrelor prescribing in each arm.

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Background: Measuring fractional flow reserve (FFR) with a pressure wire remains underutilized because of the invasiveness of guide wire placement or the need for a hyperemic stimulus. FFR derived from routine coronary angiography (FFR) eliminates both of these requirements and displays FFR values of the entire coronary tree. The FFR Accuracy versus Standard FFR (FAST-FFR) study is a prospective, multicenter, international trial with the primary goal of determining the accuracy of FFR.

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Background: Patients and other providers have access to few publicly available physician attributes that identify interventional cardiologists with better postprocedural outcomes, particularly in states without public reporting of outcomes. Interventional cardiology board certification, maintenance of certification, graduation from a US medical school, medical school ranking, and length of practice represent such publicly available attributes. Previous studies on these measures have shown mixed results.

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A 2-day workshop organized by the National Institutes of Health and U.S. Department of Agriculture included 16 presentations focused on the role of diet in alterations of the gastrointestinal microbiome, primarily that of the colon.

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Background: The IRIS trial (Insulin Resistance Intervention After Stroke) demonstrated that pioglitazone reduced the risk for both cardiovascular events and diabetes mellitus in insulin-resistant patients. However, concern remains that pioglitazone may increase the risk for heart failure (HF) in susceptible individuals.

Methods: In IRIS, patients with insulin resistance but without diabetes mellitus were randomized to pioglitazone or placebo (1:1) within 180 days of an ischemic stroke or transient ischemic attack and followed for ≤5 years.

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Importance: Patients with somatic overgrowth commonly require surgical intervention to preserve function and improve cosmesis. To our knowledge no observation of scarring outcomes in this population has been published to date.

Objective: To observe the frequency of abnormal scarring in patients with somatic overgrowth and sequencing-verified mutations in the PIK3CA gene.

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Background: In nonrandomized, open-label studies, a transcatheter interatrial shunt device (IASD, Corvia Medical) was associated with lower pulmonary capillary wedge pressure (PCWP), fewer symptoms, and greater quality of life and exercise capacity in patients with heart failure (HF) and midrange or preserved ejection fraction (EF ≥40%). We conducted the first randomized sham-controlled trial to evaluate the IASD in HF with EF ≥40%.

Methods: REDUCE LAP-HF I (Reduce Elevated Left Atrial Pressure in Patients With Heart Failure) was a phase 2, randomized, parallel-group, blinded multicenter trial in patients with New York Heart Association class III or ambulatory class IV HF, EF ≥40%, exercise PCWP ≥25 mm Hg, and PCWP-right atrial pressure gradient ≥5 mm Hg.

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Cardiac Outcomes After Ischemic Stroke or Transient Ischemic Attack: Effects of Pioglitazone in Patients With Insulin Resistance Without Diabetes Mellitus.

Circulation

May 2017

From Yale University School of Medicine, New Haven, CT (L.H.Y., C.M.V., J.P.C., S.E.I., A.M.L., D.L.J., S.E.P., W.N.K.); Denver VA Medical Center and University of Colorado School of Medicine (G.G.S., J.D.A.); Alpert Medical School of Brown University, Providence, RI (K.L.F., J.D.A.); Maine Medical Center, Portland (M.J.G.); National Institutes of Health/National Institute of Neurological Disorders and Stroke, Bethesda, MD (R.C.); University of Pennsylvania Perelman School of Medicine, Philadelphia (D.M.K.); and University of Rochester School of Medicine and Dentistry, NY (F.S.L.).

Article Synopsis
  • Insulin resistance is common among patients with atherosclerosis, increasing their risk for heart attacks and strokes; the IRIS trial found that pioglitazone effectively lowers these risks in such patients after a recent ischemic event.
  • A secondary analysis of IRIS data assessed pioglitazone's impact on acute coronary syndromes (like myocardial infarctions and unstable angina), indicating the drug's effectiveness in this context.
  • The study included 3,876 participants, revealing that pioglitazone significantly reduced the overall risk of acute coronary syndrome and specifically type 1 heart attacks, while having no significant impact on type 2 heart attacks.
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One-Year Outcomes After Transcatheter Insertion of an Interatrial Shunt Device for the Management of Heart Failure With Preserved Ejection Fraction.

Circ Heart Fail

December 2016

Department of Cardiology, Alfred Hospital, Melbourne, Victoria, Australia (D.M.K., A.W.); Georg-August Universität, Gottingen, Germany (G.H.); Na Homolce Hospital, Prague, Czech Republic (P.N.); St Antonius Ziekenhuis, Nieuwegein, The Netherlands (M.C.P.); University of Auckland, New Zealand (R.D.); CHU de Nantes, France (J.-N.T.); Fourth Military Hospital, Wroclaw, Poland (A.K.); Universität Klinikum Dusseldorf, Germany (R.W.); Cardiovascular Center Aalst, Belgium (M.P.); University Medical Center Schleswig-Holstein, Kiel, Germany (M.R.); Department of Cardiology, St Vincent's Hospital, Sydney, New South Wales, Australia (D.M., C.H.); Department of Cardiology, Prince Charles Hospital, Brisbane, Queensland, Australia (D.W.); Klinikum Großhadern, Munich, Germany (J.H.); Internal Medicine, University of Heidelberg, Germany (P.R.); Golden Jubilee Hospital, Glasgow, Great Britain (M.C.P.); Cardiologicum Hamburg, Germany (M.B.); Bichat Hospital, INSERM, Paris, France (G.J.); Northshore University Health System, Evanston, IL (T.F.); University Medical Centre, Groningen, Netherlands (D.J.v.V.); Wroclaw Medical University, Czech Republic (P.P.); Hospital of the University of Pennsylvania, Philadelphia (F.E.S.); and Columbia University, New York, NY (D.B.).

Background: Heart failure with preserved ejection fraction has a complex pathophysiology and remains a therapeutic challenge. Elevated left atrial pressure, particularly during exercise, is a key contributor to morbidity and mortality. Preliminary analyses have demonstrated that a novel interatrial septal shunt device that allows shunting to reduce the left atrial pressure provides clinical and hemodynamic benefit at 6 months.

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Practice advisory: Recurrent stroke with patent foramen ovale (update of practice parameter): Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology.

Neurology

August 2016

From the Department of Neurology (S.R.M., S.E.K.), University of Pennsylvania School of Medicine, Philadelphia; Department of Neurology (G.G., L.R.), University of Kansas Medical Center, Kansas City; Institute for Clinical Research and Health Policy Studies (D.M.K.), Tufts University School of Medicine, Boston, MA; Departments of Medicine (Cardiology) and Epidemiology and Population Health (J.R.K.), Albert Einstein College of Medicine, Bronx; and Division of Cardiology (S.H.), Columbia University Medical Center, New York, NY.

Objective: To update the 2004 American Academy of Neurology guideline for patients with stroke and patent foramen ovale (PFO) by addressing whether (1) percutaneous closure of PFO is superior to medical therapy alone and (2) anticoagulation is superior to antiplatelet therapy for the prevention of recurrent stroke.

Methods: Systematic review of the literature and structured formulation of recommendations.

Conclusions: Percutaneous PFO closure with the STARFlex device possibly does not provide a benefit in preventing stroke vs medical therapy alone (risk difference [RD] 0.

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Endothelial Cell Bioenergetics and Mitochondrial DNA Damage Differ in Humans Having African or West Eurasian Maternal Ancestry.

Circ Cardiovasc Genet

February 2016

From the Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences Center, Shreveport (D.M.K.); Department of Nutrition Sciences (D.R.M.), Center for Free Radical Biology and Medicine (D.R.M., D.G.W., K.J.D.-S., J.B., A.W.B., K.P.F., M.J.S., M.R.S., L.D., S.W.B.), Division of Molecular and Cellular Pathology, Department of Pathology (D.G.W., J.B., A.W.B., K.P.F., M.J.S., M.R.S., S.W.B.), Department of Pediatrics (N.A.), Department of Medicine (D.C., L.D.), University of Alabama at Birmingham; Department of Medicine, Queen's University, Kingston, Ontario, Canada (K.J.D.-S.); Department of Anthropology, University of Pennsylvania, Philadelphia (T.G.S.); and Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, MA (J.A.V.).

Background: We hypothesized that endothelial cells having distinct mitochondrial genetic backgrounds would show variation in mitochondrial function and oxidative stress markers concordant with known differential cardiovascular disease susceptibilities. To test this hypothesis, mitochondrial bioenergetics were determined in endothelial cells from healthy individuals with African versus European maternal ancestries.

Methods And Results: Bioenergetics and mitochondrial DNA (mtDNA) damage were assessed in single-donor human umbilical vein endothelial cells belonging to mtDNA haplogroups H and L, representing West Eurasian and African maternal ancestries, respectively.

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Reconstituted high-density lipoprotein therapies: a cause for optimism.

Arterioscler Thromb Vasc Biol

September 2014

From the Division of Cardiovascular Medicine (A.J., D.M.K.) and Division of Translational Medicine and Human Genetics (M.C.), Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia.

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Factors associated with vascular complications in patients undergoing balloon-expandable transfemoral transcatheter aortic valve replacement via open versus percutaneous approaches.

Circ Cardiovasc Interv

August 2014

From the Divisions of Cardiovascular Medicine (M.B.K., H.C.H., J.O., S.A., D.J., R.L., J.G.) and Cardiovascular Surgery (N.D.D., Z.F., J.E.B., W.Y.S., P.V., R.M., D.M.K.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia.

Background: Vascular complications after transfemoral transcatheter aortic valve replacement are common and associated with significant morbidity and mortality. Little is known about the effect of access approach on vascular complications.

Methods And Results: Between 2007 and 2013, 331 patients underwent transfemoral transcatheter aortic valve replacement via open surgical (OS) or fully percutaneous (PC) approaches.

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Early aneurysm formation after everolimus-eluting stent implantation.

Circ Cardiovasc Interv

April 2014

From the Cardiovascular Division, Department of Medicine (M.B.K., K.C.E., M.E.J., J.O., J.G., D.M.K., R.L.W.) and Division of Cardiovascular Surgery (Y.J.W.), Hospital of the University of Pennsylvania, Philadelphia.

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