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    7887 results match your criteria Catheterization and Cardiovascular Interventions[Journal]

    1 OF 158

    Management of left main coronary artery obstruction after transcatheter aortic valve replacement utilizing a periscope approach.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    Department of Medicine, Division of Cardiology, University of Minnesota, Minneapolis, Minnesota.
    Coronary obstruction is a rare but potentially fatal complication of transcatheter aortic valve replacement (TAVR). It can result from native leaflet or stent frame obstruction of the coronary ostia. There are reports detailing the difficulty of percutaneous coronary intervention following TAVR, but none that describe a periscope approach to access the left main ostia in the presence of a braided nitinol frame. Read More

    Comparative outcomes of transcatheter aortic valve replacement in African American and Caucasian patients with severe aortic stenosis.
    Catheter Cardiovasc Interv 2017 Sep 23. Epub 2017 Sep 23.
    Division of Cardiology, West Virginia University, Morgantown, West Virginia.
    Background: Racial disparities in cardiovascular care have been extensively investigated. The introduction of transcatheter aortic valve replacement (TAVR) revolutionized the treatment of aortic stenosis (AS) in the last decade. Whether a racial disparity in the utilization and outcome of TAVR exists is unknown. Read More

    A comparison of the fully repositionable and retrievable Boston Lotus and direct flow medical valves for the treatment of severe aortic stenosis: A single center experience.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    Interventional Cardiology, San Raffaele Hospital, Milan, Italy.
    Background: Second generation transcatheter aortic valve implantation (TAVI) devices have been designed to reduce the rate of paravalvular leak (PVL) and other complications. An important technological advancement has been the ability to fully reposition devices to facilitate optimal implantation depth and position to reduce the likelihood of PVL.

    Objectives: To compare procedural and 30-day outcomes according to the Valve Academic Research Consortium (VARC)-2 criteria following TAVI with the fully repositionable and retrievable Lotus and DFM devices. Read More

    The effectiveness and safety of the Impella ventricular assist device for high-risk percutaneous coronary interventions: A systematic review.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
    Background: Small randomized controlled trials (RCTs) and observational studies have examined the effectiveness and safety of the Impella device, a percutaneous left ventricular assist device, in the setting of high-risk percutaneous coronary intervention (PCI). However, data are sparse and results are conflicting. Our objective was to evaluate the effectiveness and safety of the Impella device in high-risk patients undergoing PCI via a systematic review of the literature. Read More

    Real-time optical coherence tomography coregistration with angiography in percutaneous coronary intervention-impact on physician decision-making: The OPTICO-integration study.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    Department of Cardiology, University Heart Center Berlin and Charite University Medicine Berlin, Campus Benjamin-Franklin (CBF), Berlin, Germany.
    Aims: Intracoronary optical coherence tomography (OCT) imaging allows for high-resolution characterization of coronary lesions. Difficulties in matching cross-sectional OCT-images with angiographic lesion localization may limit optimal clinical utilization. We sought to prospectively assess the impact of a novel system of real-time OCT coregistration with angiography (ACR) on physician decision-making during percutaneous coronary interventions (PCI). Read More

    Guidewire electrosurgery-assisted trans-septal puncture.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    Division of Cardiology, Henry Ford Health System, Center for Structural Heart Disease, Detroit, Michigan.
    Objectives: Electrifying a coronary guidewire may be a simple escalation strategy when trans-septal needle puncture is unsuccessful.

    Background: Radiofrequency energy to facilitate trans-septal puncture through a dedicated device is costly and directly through a trans-septal needle may be less safe. Our technique overcomes these limitations. Read More

    A novel guidewire-integrated embolic protection filter device with a handy-folding system: In vitro and in vivo performance assessment.
    Catheter Cardiovasc Interv 2017 Sep 20. Epub 2017 Sep 20.
    PTMC institute, Kyoto, Japan.
    Objectives: We developed a novel guidewire-integrated filter device with a handy-folding system (IFD: Inoue filter device). In vitro and in vivo studies were conducted to evaluate the feasibilityof the IFD.

    Background: Although distal atheromatous and thrombotic embolizations remain unresolved critical issues during catheter interventions, distal protection devices are infrequently used partly because of reduced lower maneuverability. Read More

    Safety and efficacy of the next generation Resolute Onyx zotarolimus-eluting stent: Primary outcome of the RESOLUTE ONYX core trial.
    Catheter Cardiovasc Interv 2017 Sep 23. Epub 2017 Sep 23.
    Department of Cardiology, Mount Sinai Medical Center, New York, USA.
    Objectives: To assess the safety and efficacy of the novel Resolute (R-) Onyx drug-eluting stent (DES).

    Background: The R-Onyx DES consists of a composite wire with an outer shell of cobalt chromium alloy and a platinum-iridium inner core to enhance radiopacity, with thinner, swaged struts and modified stent geometry compared with the predicate Resolute DES, resulting in a slightly lower total drug load in most sizes.

    Methods: This was a prospective, single-arm non-inferiority trial compared with a historical control. Read More

    Coronary angiography with or without percutaneous coronary intervention in patients with hemophilia-Systematic review.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Cardiology Department, Kantonsspital St. Gallen, Switzerland.
    Objectives: We aimed to summarize the evidence for periprocedural and long-term strategies to both minimize the bleeding risk and ensure sufficient anticoagulation and antiaggregation in hemophilia patients undergoing coronary angiography with or without percutaneous coronary interventions (PCI).

    Background: Hemophilia patients undergoing coronary angiography and PCI are at risk of bleeding due to deficiency of the essential clotting factors VIII or IX combined with the need of peri-interventional anticoagulation and antiaggregation and dual antiplatelet therapy (DAPT) after PCI.

    Methods: We report on a patient with moderate hemophilia B undergoing single-vessel PCI with administration of factor IX concentrate during the procedure and during the 1-month DAPT period. Read More

    Early leaflet thrombosis complicating transcatheter implantation of a Sapien 3 valve in a native right ventricular outflow tract.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Division of Cardiology, St. Paul's Hospital, Vancouver, British Columbia, Canada.
    A 59-year-old female with Tetralogy of Fallot had a previous complete repair with RVOT patch enlargement. She developed subsequent severe symptomatic (NYHA III) pulmonary regurgitation with severe RV dilatation. She had a concomitant interstitial lung disease secondary to hypersensitivity pneumonitis that precluded her from cardiac surgery. Read More

    Pathology of self-expanding transcatheter aortic valves: Findings from the CoreValve US pivotal trials.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    CVPath Institute, Inc, Gaithersburg, Maryland.
    Background: Transcatheter aortic valve replacement (TAVR) has recently become an alternative to surgical aortic valve replacement for patients with severe aortic stenosis. However, paravalvular leaks, possible leaflet thrombosis, and device durability following TAVR remain unresolved issues.

    Methods And Results: We conducted the first systematic microscopic and macroscopic pathologic analysis of self-expanding CoreValve transcatheter aortic valves removed at autopsy or surgically from the U. Read More

    Complete filter-based cerebral embolic protection with transcatheter aortic valve replacement.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands.
    Objectives: To evaluate the value of left vertebral artery filter protection in addition to the current filter-based embolic protection technology to achieve complete cerebral protection during TAVR.

    Background: The occurrence of cerebrovascular events after transcatheter aortic valve replacement (TAVR) has fueled concern for its potential application in younger patients with longer life expectancy. Transcatheter cerebral embolic protection (TCEP) devices may limit periprocedural cerebrovascular events by preventing macro and micro-embolization to the brain. Read More

    Usefulness of the SYNTAX score II to validate 2-year outcomes in patients with complex coronary artery disease undergoing percutaneous coronary intervention: A large single-center study.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China.
    Objective: This study aimed to assess the prognostic ability of synergy between percutaneous coronary intervention with Taxus and cardiac surgery score II (SS-II) in a large cohort of patients with complex coronary artery disease (CAD) undergoing percutaneous coronary intervention (PCI) in clinical practice.

    Background: Few studies have explored the usefulness of SS-II in nonrandomized clinical patients with complex CAD undergoing temporary PCI.

    Methods: We prospectively enrolled 4398 consecutive patients undergoing three-vessel and/or unprotected left main PCI in a single center from January 2013 to December 2013. Read More

    Right ventricle outflow tract prestenting: In vitro testing of rigidity and corrosion properties.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Pediatric and Congenital Cardiology, UZ Leuven, Leuven, Belgium.
    Background: The aim of this study was to assess the resistance to compression (stiffness) of frequently used stents for right ventricular outflow tract prestenting. In addition, to assess the corrosion potential when different types of stent alloys come into contact with each other.

    Method: Different stents were tested in vitro in various combinations at specialized metallurgic laboratories. Read More

    Incidence and outcome of infective endocarditis following percutaneous versus surgical pulmonary valve replacement.
    Catheter Cardiovasc Interv 2017 Sep 12. Epub 2017 Sep 12.
    Department of Medicine, Division of Cardiology, David Geffen School of Medicine at UCLA, Ahmanson/UCLA Adult Congenital Heart Disease Center, Los Angeles, California.
    Objectives: To provide a comparison of the outcome of infective endocarditis (IE) in patients undergoing transcatheter pulmonary valve replacement (TPVR) versus surgical pulmonary valve replacement (SPVR).

    Background: Although TPVR is thought to be associated with a higher risk of IE than SPVR, there is paucity of data to support this.

    Methods: Patients who underwent TPVR or SPVR at UCLA between October 2010 and September 2016 were included and retrospectively analyzed. Read More

    Drug-coated balloons: "Do they still have a role in treating coronary artery disease?"
    Catheter Cardiovasc Interv 2017 Sep;90(3):387-388
    Texas Heart Institute, Houston, Texas.
    Small vessels with coronary artery disease (CAD) are at high risk of restenosis, despite the use of drug-eluting stents (DESs). Drug-coated balloon (DCB) therapy offers a viable alternative to DESs for the management of small vessel CAD. The literature regarding the use of DCBs in lieu of the newer generation DESs to treat small vessel CAD is controversial. Read More

    Heparin or bivalirudin for non-primary PCI: Beware of neat and simple answers….
    Catheter Cardiovasc Interv 2017 Sep;90(3):378-379
    The Cardiac Catheterization Laboratory, Division of Cardiology, Tufts Medical Center, Boston, Massachusetts.
    The debate regarding the choice of heparin or bivalirudin as the preferred anticoagulant in PCI is still ongoing Nonrandomized registry data are severely limited for comparative analyses and should therefore always be interpreted with caution Clinicians should resist simplistic data interpretations or populist cries relating to cost, but rather focus on valid benefit:risk analyses for their clinical decision making. Read More

    Patient preferences prompt a peek at priorities.
    Catheter Cardiovasc Interv 2017 Sep;90(3):364-365
    Geisinger Medical Center, Danville, Pennsylvania.
    Patients rate the downsides of bare metal stents (higher restenosis rates) as being of similar magnitude to the downsides of drug eluting stents (longer dual anti-platelet therapy). Patient preferences regarding choice of bare metal versus drug eluting stents should be elicited before coronary stenting. This article does not study actual patient preferences for stent type. Read More

    Integrating invasive hemodynamic parameters into risk stratification of acute myocardial infarction and cardiogenic shock.
    Catheter Cardiovasc Interv 2017 Sep;90(3):396-397
    The Icahn School of Medicine at Mount Sinai, New York, New York.
    A ratio of systolic blood pressure over left ventricle end-diastolic pressure (SBP/LVEDP) ≤4 identifies patients with ST-elevation myocardial infarction (STEMI) at greater risk of in-hospital mortality or that may require the use of mechanical circulatory support (MCS). The predictive performance of the SBP/LVEDP ratio was comparable to non-invasive hemodynamic parameters (the shock index and the modified shock index) and established clinical risk stratification tools (the TIMI risk score). Alongside established clinical risk factors, invasive hemodynamic parameters may help in identifying STEMI patients who may benefit from early MCS. Read More

    CO2 angiography: Colorless, odorless, but definitely not useless!
    Catheter Cardiovasc Interv 2017 Sep;90(3):449-450
    Department of Cardiovascular Medicine, Beaumont Health, Royal Oak, Michigan.
    Contemporary approaches to minimize the risk of acute kidney injury from radiographic contrast (AKI-RC) rely on preferential use of low- or non-ionic contrast; pre-hydration; and limiting contrast volume. This study utilized a meta-analysis of 677 patients to compare the risk of AKI-RC after CO2 peripheral angiography versus iodinated contrast (4.3% vs. Read More

    Five-year follow-up of the endothelial progenitor cell capturing stent versus the paxlitaxel-eluting stent in de novo coronary lesions with a high risk of coronary restenosis.
    Catheter Cardiovasc Interv 2017 Sep 4. Epub 2017 Sep 4.
    Heart Center, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
    Objectives: To assess the long-term safety and clinical efficacy of the Genous endothelial progenitor cell capturing stent (ECS) compared with the TAXUS Liberté paclitaxel-eluting stent (PES) in lesions with a high risk of restenosis.

    Background: Instead of the use of cytotoxic or cytostatic drugs in drug-eluting stents, a "pro-healing" approach in ECS may overcome impeded healing response due to delayed functional endothelialization of the stent struts.

    Methods: In the prospective, randomized TRIAS pilot study 193 patients with coronary artery lesions carrying a high risk of restenosis were included (ECS: n = 98, PES: n = 95). Read More

    Minimizing exposure to radiation in invasive cardiology using modern dose-reduction technology: evaluation of the real-life effects.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Department of Cardiology, Reims University Hospital, Reims, France.
    Objectives: We aimed to measure the reduction in the estimated dose of radiation received by patients that can be achieved using dose-reduction technology (ClarityIQ, Philips Healthcare, The Netherlands), among all patients undergoing invasive cardiology procedures.

    Background: Medical procedures remain the primary source of exposure to ionizing radiation in the general population.

    Methods: The study population comprised all patients (without exclusion criteria) undergoing invasive coronary procedures over a 1-year study period in a large referral centre equipped with two catheterization laboratories (cathlabs). Read More

    Tailoring stents to fit the anatomy of unique vascular stenoses in congenital heart disease.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Division of Pediatric Cardiology, Children's Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, California.
    Background: Unique and small anatomical features often preclude the use of available vascular stents in pediatric patients with congenital heart disease (CHD).

    Objectives: To report our experience and outcomes tailoring stents to fit unique anatomy, particularly in small children and infants with CHD.

    Methods: Stent tailoring techniques included trimming, folding, and flaring. Read More

    Atrial septostomy with a predefined diameter using a novel occlutech atrial flow regulator improves symptoms and cardiac index in patients with severe pulmonary arterial hypertension.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Congenital Heart Center, Helen DeVos Children's Hospital, Grand Rapids, Michigan, USA.
    Objectives: A novel Occlutech atrial flow regulator (AFR) implantation gives an atrial septal predefined predictable fenestration.

    Background: Atrial septostomy relieves syncope in pulmonary arterial hypertension (PAH) by improving left heart filling, cardiac output and systemic oxygen transport despite hypoxia. Symptoms recur when small fenestrations close spontaneously. Read More

    A systematic review of reported cases of combined transcatheter aortic and mitral valve interventions.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Division of Cardiology, Wayne State University/Detroit Medical Center, Detroit, Michigan.
    Objectives: To summarize the published data of combined transcatheter aortic and mitral valve intervention (CTAMVI).

    Background: CTAMVI, a combination of either transcatheter aortic valve replacement (TAVR) or transcatheter aortic valve-in-valve (TAViV) and transcatheter mitral valve replacement (TMVR), transcatheter mitral valve-in-valve/valve-in-ring (TMViV/ViR), or percutaneous mitral valve repair (PMVR) is an attractive alternative in high-surgical risk patients with combined aortic and mitral valve disease. However, its procedural details and clinical outcomes have not been well described. Read More

    Rationale and design of a global registry to evaluate real-world clinical outcomes in patients with atrial fibrillation and high risk of stroke treated with left atrial appendage occlusion using the AMPLATZER amulet device-Perspective of available/ongoing registries of catheter-based LAA occlusion.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Department of Cardiology, Charite Universitätsmedizin Berlin (CBF); Berlin Institute of Health (BIH), Berlin, Germany.
    Objectives: To describe the rationale and design of a global prospective registry on catheter-based left atrial appendage (LAA) occlusion using the second generation AMPLATZER Amulet LAA occlusion device and to provide a comprehensive perspective on available/ongoing registries for catheter-based LAA occlusion.

    Background: Given the increasing clinical application of catheter-based LAA occlusion, there is an important need for prospective real-world clinical data regarding this cardiac intervention.

    Methods: The Global Amplatzer Amulet LAA registry aims to provide prospective real-world data from an all-comer population of atrial fibrillation (AF) patients undergoing catheter-based LAA occlusion for stroke prevention. Read More

    Analysis of IN.PACT DEEP trial on the association between changes in perfusion from pre- to postrevascularization and clinical outcomes in critical limb ischemia.
    Catheter Cardiovasc Interv 2017 Sep 1. Epub 2017 Sep 1.
    Harrington Heart & Vascular Institute, University Hospitals of Cleveland, Cleveland, Ohio.
    Objectives: To quantify changes in ankle and toe pressure from pre- to post-endovascular revascularization for critical limb ischemia (CLI) and examine their association with major adverse limb events (MALE).

    Background: Despite societal guidelines recommendation of routine hemodynamic surveillance following revascularization, little is known about hemodynamic assessment in CLI.

    Methods: Among the 358 patients with CLI from the international multicenter IN. Read More

    Outcomes and readmissions after transcatheter and surgical aortic valve replacement in patients with cirrhosis: A propensity matched analysis.
    Catheter Cardiovasc Interv 2017 Aug 28. Epub 2017 Aug 28.
    Division of Cardiology, University of Texas McGovern Medical School, Houston, Texas.
    Background: The data on the comparative outcomes and readmissions after transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) in patients with cirrhosis are limited. We compared mortality, complications, discharge disposition, 30-day readmission rates, length of stay, and cost of hospitalization in cirrhotic patients undergoing TAVR and SAVR.

    Methods: The National Inpatient Sample (NIS) and the National Readmission Database (NRD) were used for the study. Read More

    Hemodynamic analysis of a novel bioresorbable scaffold in porcine coronary artery model.
    Catheter Cardiovasc Interv 2017 Aug 26. Epub 2017 Aug 26.
    Department of Interventional Cardiology, Erasmus University Medical Center, Thoraxcenter, Rotterdam, The Netherlands.
    Background: The shear stress distribution assessment can provide useful insights for the hemodynamic performance of the implanted stent/scaffold. Our aim was to investigate the effect of a novel bioresorbable scaffold, Mirage on local hemodynamics in animal models.

    Method: The main epicardial coronary arteries of 7 healthy mini-pigs were implanted with 11 Mirage Microfiber sirolimus-eluting Bioresorbable Scaffolds (MMSES). Read More

    Concomitant coronary artery disease and its management in patients referred to transcatheter aortic valve implantation: Insights from the POL-TAVI Registry.
    Catheter Cardiovasc Interv 2017 Aug 26. Epub 2017 Aug 26.
    First Department of Cardiology, Medical University of Warsaw, Warsaw, Poland.
    Background: Coronary artery disease (CAD) and degenerative aortic stenosis often coexist. However, the impact of CAD and its management on the prognosis after transcatheter aortic valve implantation (TAVI) remains uncertain. We sought to evaluate the impact of obstructive CAD, SYNTAX score (Ss), and percutaneous coronary intervention (PCI) prior to TAVI on short-term outcome. Read More

    The trap and occlude technique for retrograde wire externalization during chronic total occlusion revascularization.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    Department of Invasive Cardiology, Ospedale San Giovanni Bosco, Turin, Italy.
    Different strategies of retrograde approach were introduced in recent years to improve the success rate of percutaneous coronary intervention for coronary chronic total occlusions. The aim of this report is to describe a new technique, called "Trap and Occlude Technique," for retrograde wire externalization during CTO percutaneous revascularization. This technique may save time and reduce radiation exposure and procedure-related bleeding. Read More

    Safety of shorter length of hospital stay for patients undergoing minimalist transcatheter aortic valve replacement.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio.
    Objective: Determine the feasibility and predictors of early discharge after minimalist transcatheter aortic valve replacement (TAVR).

    Background: Duration of hospitalization has a direct impact on overall cost of care, but the clinical impact of length of stay (LOS) in patients undergoing minimalist TAVR remains unclear.

    Methods: We studied 268 patients who underwent minimalist TAVR. Read More

    Single trans-septal access technique for left atrial intracardiac echocardiography to guide left atrial appendage closure.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    San Borja Arriaran Hospital and University of Chile, Santiago, Región Metropolitana, Chile.
    Objective: This registry aimed to describe the safety and feasibility of a single trans-septal (TS) access technique for left intracardiac echocardiography (ICE) guidance of left-atrial appendage (LAA) closure procedure.

    Background: LAA closure is currently accepted as an alternative to oral anticoagulation (OAC) in patients with non-valvular atrial fibrillation (NVAF) who are at high-risk for bleeding. Currently, LAA closure procedure is typically performed under trans-esophageal echocardiogram (TEE) guidance. Read More

    Visual estimation versus different quantitative coronary angiography methods to assess lesion severity in bifurcation lesions.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    International Centre for Circulatory Health, NHLI, Imperial College London, United Kingdom.
    Objectives: To compare visual estimation with different quantitative coronary angiography (QCA) methods (single-vessel versus bifurcation software) to assess coronary bifurcation lesions.

    Background: QCA has been developed to overcome the limitations of visual estimation. Conventional QCA however, developed in "straight vessels," has proved to be inaccurate in bifurcation lesions. Read More

    Overexpansion of the 29 mm SAPIEN 3 transcatheter heart valve in patients with large aortic annuli (area > 683 mm(2) ): A case series.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    Department of Medicine, Division of Cardiology, University of Washington, Seattle, Washington.
    Objectives: To evaluate overexpanded 29 mm SAPIEN (S3) transcatheter heart valves in patients with aortic annuli area >683 mm(2) .

    Background: The largest valve area the 29 mm S3 is specified for is 683 mm(2) . Valve overexpansion has been performed in patients with larger aortic annuli, but data are limited. Read More

    Coronary artery rotation in native and stented porcine coronary arteries.
    Catheter Cardiovasc Interv 2017 Aug 24. Epub 2017 Aug 24.
    Department of Medicine, University of Illinois at Chicago, Jesse Brown VA Medical Center, Chicago, Illinois.
    Introduction: Coronary arteries are exposed to several complex biomechanical forces during the cardiac cycle. These biomechanical forces potentially contribute to both native coronary artery disease, development of atherosclerosis and eventual stent failure. The aim of the present study was to characterize and define coronary artery axial rotation and the effect of stent implantation on this biomechanical factor. Read More

    The CLOSER trial: a multi-center study on the clinical safety and effectiveness of closer(TM) VSS, a novel resorbable transfemoral vascular access sealing system.
    Catheter Cardiovasc Interv 2017 Aug 23. Epub 2017 Aug 23.
    Division of Cardiology, Weill Cornell Medical College/New York Presbyterian Hospital, New York, New York.
    Objectives: To evaluate the safety and effectiveness of the Closer Vascular Sealing System (VSS) against prespecified performance goals (PGs) in sealing femoral arterial access following 5-7 Fr procedures.

    Background: Inconsistent safety profiles, costs and learning curves of earlier generation vascular closure devices have limited their widespread use following transfemoral procedures.

    Methods: In this prospective single-arm, multi-center trial, we compared the clinical outcomes in patients undergoing 5-7 Fr transfemoral diagnostic or interventional procedures and access sites managed with Closer VSS against pre-specified PGs. Read More

    Rest and exercise hemodynamic and metabolic findings in active duty soldiers referred for cardiac catheterization to exclude heart disease: Insights from past invasive cardiopulmonary exercise testing using multisensor high fidelity catheters.
    Catheter Cardiovasc Interv 2017 May 8. Epub 2017 May 8.
    Cardiology Service, Brooke Army Medical Center, Fort Sam Houston, Texas.
    Objective: This study describes results of iCPET from the past, which used submaximal stress and multisensor high-fidelity catheters to exclude heart disease in a unique population of young adults.

    Background: There has been resurgence in comprehensive hemodynamic evaluation of complex cardiovascular patients. Although dynamic assessments during cardiac catheterization have become commonplace, there remains limited information regarding left and right heart hemodynamic changes during supine exercise in young adults. Read More

    Unnatural milieu: Thrombus after transcatheter mitral valve replacement.
    Catheter Cardiovasc Interv 2017 Aug;90(2):329-330
    Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart Lung Institute, National Institutes of Health, Bethesda, Maryland.
    What the article teaches Transcatheter heart valve thrombosis in the mitral position causes increased valve gradients, valve dysfunction, and symptoms, and may be associated with lack of therapeutic anticoagulation. How it will impact practice Anticoagulation with a vitamin K antagonist should be considered in all patients undergoing transcatheter mitral valve replacement. What new research/study would help answer the question posed Efficacy, optimal duration, and safety of anticoagulation therapy, balancing reduced thrombosis against increased bleeding risk, needs to be assessed in larger cohort studies and prospective trials. Read More

    Novel approaches to direct atrial access after extracardiac fontan palliation.
    Catheter Cardiovasc Interv 2017 Aug;90(2):297
    Pediatric Cardiology, Ochsner Hospital for Children, Ochsner Clinic Foundation, New Orleans, Louisiana.
    Catheter access to the "native" atria is limited after extra-cardiac Fontan palliation of univentricular cardiac defects Catheter access to the atria is necessary to percutaneously treat acquired abnormalities after extra-cardiac Fontan palliation Direct trans-thoracic atrial access and extra-cardiac conduit puncture is technically straightforward and allows for novel catheter interventions. Read More

    Classification of mechanisms of strut malapposition after angiographically optimized stent implantation: An optical coherence tomography study.
    Catheter Cardiovasc Interv 2017 Aug 3;90(2):225-232. Epub 2017 Feb 3.
    Division of Cardiovascular Medicine, Department of Internal Medicine, Central Arkansas Veterans Healthcare System, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
    Aims: To elucidate causes and extent of strut malapposition in angiographically optimized stenting.

    Methods And Results: Using a new classification system for strut malapposition, the mechanisms of stent strut malapposition were classified as localized lumen enlargement, vessel asymmetry, stent undersizing, strut underexpansion and stent deployment issue. Stent implantations (n = 110) in 100 consecutive patients undergoing optical coherence tomography (OCT) after the operator considered the stent as optimally deployed angiographically were reviewed to determine if strut apposition was complete. Read More

    One catheter or two? Tomayto or Tomahto?
    Catheter Cardiovasc Interv 2017 Aug;90(2):249-250
    Division of Cardiology, Department of Medicine, Veterans Affairs Long Beach Healthcare System.
    This retrospective study compares the performance of transradial diagnostic procedures using the single versus Judkins catheter approach. The Judkins approach had a 15% lower patient radiation exposure than single catheter approach while fluoroscopy time was comparable. Future studies of comparing such techniques may always be limited by operator preference, experience, and comfort. Read More

    Direct stenting versus balloon predilation: Jury is still out.
    Catheter Cardiovasc Interv 2017 Aug;90(2):223-224
    Department of Interventional Cardiology and Endovascular Therapeutics, Instituto Cardiovascular de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.
    Compared to balloon predilation, direct stenting (DS) shortens procedural time and reduces radiation and contrast exposure. A meta-analysis that included 7 studies comparing these 2 strategies revealed lower adverse event rate with DS. Studies included in the present meta-analysis were mostly observational and utilized first generation drug-eluting stent. Read More

    Balloon aortic valvuloplasty in the TAVR era: Not so new but definitely improved.
    Catheter Cardiovasc Interv 2017 Aug;90(2):311-312
    NorthShore University HealthSystem, Evanston, IL.
    BAV in the TAVR era is not well studied BAV resulted in improvements in aortic valve area and transvalvular pressure gradient, and in patients with impaired left ventricle function, ejection fraction improved. These improvements diminished over time, but at one year were still improved compared to baseline. BAV resulted in changes of planned therapy more than half of the patients treated as bridge for TAVR did not ultimately undergo TAVR twice as many planned as bridge for surgical valve replacement actually had surgical valve replacement. Read More

    Improving outcomes after CABG and PCI.
    Catheter Cardiovasc Interv 2017 Aug;90(2):194-195
    Department of Cardiovascular Medicine, Beaumont Health, Royal Oak, Michigan.
    Within 1 year of coronary artery bypass surgery , 64% of percutaneous coronary interventions were performed for graft failure and 36% for native vessel disease. Predictors of graft failure were small diameter of the graft and native vessel, poor distal run-off, and disease distal to the graft. In the near future, cardiac computed tomography angiography (CCTA) and fractional flow reserve by CT (FFRct) will incorporate accurate determination of coronary anatomy and the presence and extent of myocardial ischemia. Read More

    "ICE or not to ICE during LAAO?" What are the benefits and disadvantages of ICE during LAAO?
    Catheter Cardiovasc Interv 2017 Aug;90(2):339-340
    Texas Heart Institute, Houston, Texas, Baylor College of Medicine, Houston, Texas.
    For left atrial appendage occlusion (LAAO), intracardiac echocardiography (ICE) could be a safe alternative to transesophageal echocardiography (TEE). ICE obviates the need for general anesthesia and can be readily implemented in practice. Randomized controlled trials are needed to assess the noninferiority of ICE to TEE for LAAO. Read More

    A hybrid technique for ventricular septal defect closure in young infants.
    Catheter Cardiovasc Interv 2017 Aug;90(2):290-291
    Department of Cardiovascular Medicine, Heart & Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, Unites Arab Emirates.
    Perventricular device closure is a hybrid surgical and transcatheter technique. Perventricular device closure is a safe and effective technique to close muscular VSDs even in infants. TEE guidance is the principal tool for intra-procedural guidance. Read More

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