21 septiembre 2010

CIRCULATION. The Association of Patent Foramen Ovale Morphology and Stroke Size in Patients With Paradoxical Embolism

Andre Akhondi, MD, Rubine Gevorgyan, MD, Chi-Hong Tseng, PhD, Leo Slavin, MD, Catherine Dao, MD, David S. Liebeskind, MD and Jonathan M. Tobis, MD

Copyright © 2010 American Heart Association. All rights reserved. Print ISSN: 1941-7640. Online ISSN: 2010 1941-7632

01 enero 2009

CIRCULATION. Is patent foramen ovale closure indicated for migraine? Patent Foramen Ovale Closure for Migraine

Mark Reisman, MD and Cindy J. Fuller, PhD

Copyright © 2009 American Heart Association. All rights reserved. Print ISSN: 1941-7640. Online ISSN: 2009 1941-7632

25 enero 2011

CIRCULATION. Validation of Intravascular Ultrasound–Derived Parameters With Fractional Flow Reserve for Assessment of Coronary Stenosis Severity

Original Articles Validation of Intravascular Ultrasound–Derived Parameters With Fractional Flow Reserve for Assessment of Coronary Stenosis Severity Soo-Jin Kang, MD, PhD, Jong-Young Lee, MD, Jung-Min Ahn, MD, Gary S. Mintz, MD, Won-Jang Kim, MD, Duk-Woo Park, MD, PhD, Sung-Cheol Yun, PhD, Seung-Whan Lee, MD, PhD, Young-Hak Kim, MD, PhD, Cheol Whan Lee, MD, PhD, Seong-Wook Park, MD, PhD and Seung-Jung Park, MD, PhD

Copyrigh © 2011 American Heart Association. All rights reserved. Print ISSN: 1941-7640. Online ISSN: 2011 1941-7632

23 noviembre 2010

CIRCULATION. Drug-Eluting or Bare Metal Stents for the Treatment of Saphenous Vein Graft Disease

Jean-Michel Paradis, MD, Patrick Bélisle, MSc, Lawrence Joseph, PhD, Olivier F. Bertrand, MD, PhD, Robert DeLarochellière, MD, Jean-Pierre Déry, MD, MHS, Éric Larose, DVM, MD, Josep Rodés-Cabau, MD and Stéphane Rinfret, MD, SM

Copyright © 2010 American Heart Association. All rights reserved. Print ISSN: 1941-7640. Online ISSN: 2010 1941-7632

06 junio 2011

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Very Late Thrombosis in A Bare Metal Stent: Mechanistic analysis from optical coherence tomography

Jie Qian, MD, and Yue-Jin Yang, MD

Recent publications have emphasized the concept that restenosis of a bare metal stent (BMS) is not as clinically benign as previously believed. We present a case of very late stent thrombosis 9 years after implantation of a BMS is described. Optical coherence tomography shows plaque rupture in the stent. These findings suggest that the formation and progression of a neoatheroma over a previously healed intrastent vascular intima may represent a ‘‘new’’ mechanism for stent thrombosis. Evidence from the current case supports this hypothesis. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 79:288–290 (2012)

29 junio 2011

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Combination Therapy Involving Stenting and Coil Embolization for Atherosclerotic Narrowing Complicated by a Coronary Aneurysm

Hirotaka Oda, MD, and Tomoyasu Suzuki, MD

There is controversy as to how atherosclerotic coronary artery aneurysms should be treated and managed because their prognosis is still unknown. This report describes a case in which atherosclerotic coronary narrowing accompanied by a saccular coronary aneurysm was successfully treated by combination therapy involving coil embolization to treat the aneurysm and stent implantation across the narrowing and the ostium of the aneurysm. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 79:275–281 (2012)

04 octubre 2011

JACC. Impact of the Everolimus-Eluting Stent on Stent Thrombosis A Meta-Analysis of 13 Randomized Trials

Usman Baber, MD, MS, Roxana Mehran, MD, Samin K. Sharma, MD, Somjot Brar, MD, MPH, Jennifer Yu, MD, Jung-Won Suh, MD, PHD, Hyo-Soo Kim, MD, PHD, Seung-Jung Park, MD, PHD, Adnan Kastrati, MD, Antoinette de Waha, MD, Prakash Krishnan, MD, Pedro Moreno, MD, Joseph Sweeny, MD, Michael C. Kim, MD, Javed Suleman, MD, Robert Pyo, MD, Jose Wiley, MD, Jason Kovacic, MD, PHD, Annapoorna S. Kini, MD, George D. Dangas, MD, PHD

We evaluated the impact of the everolimus-eluting stent (EES) on the frequency of stent thrombosis (ST), target vessel revascularization (TVR), myocardial infarction (MI), and cardiac death in randomized controlled trials comparing the EES to non–everolimus-eluting drug-eluting stents (EE-DES). Journal of the American College of Cardiology. Vol. 58, No. 6, 2011. Copyright © 2011 by the American College of Cardiology Foundation. Published by Elsevier Inc. ISSN 0735-1097.

14 abril 2011

ASWAN HEART CENTRE. Transcatheter aortic valve implantation. Role of imaging

Michael Gessat, Thomas Frauenfelder, Lukas Altwegg, Jürg Grünenfelder and Volkmar Falk

Transcatheter aortic valve implantation (T-AVI) has shown good results in high-risk patients with severe aortic stenosis. Throughout the whole process of T-AVI, different imaging modalities are indispensable. Preoperatively, multislice computed tomography, angiography and transesophageal echo (TEE) are utilized for patient selection, valve selection, approach selection and the planning of implant placement. Intraoperatively, angiography and TEE are used for controlling placement of the guidewire and valve positioning. Quality control and follow-up require TEE imaging and can require additional CT or angiography studies. In the first half of this paper, we discuss the applicability of different imaging modalities for T-AVI in the light of the current best practice. Copyright 2010 Gessat et al, licensee Bloomsbury Qatar Foundation Journals. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial license CC BY-NC 3.0 which permits unrestricted non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited.

07 diciembre 2011

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Left-Ventricular Outflow Tract Ventricular-Tachycardia Event Following CoreValve Transcatheter Aortic-Valve Implantation

Danny Dvir, MD, Moti Haim, MD, and Ran Kornowski, MD

We describe a patient with severe aortic stenosis who underwent CoreValve (Medtronic) implantation and presented several days later with a tachyarrhythmic episode. The electrocardiographic features of the arrhythmia were compatible with left-ventricular outflow tract ventricular-tachycardia. The life-threatening event was not associated with ischemia or an electrolyte disorder and was not drug-induced. A probable cause was the irritation of the myocardium by the prosthetic valve. Clinicians should be aware that the presence of anatomical parameters that increases the risk for myocardial injury and the need for pacemaker implantation might indicate an increased risk of a tachyarrhythmic episode. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 79:331–333 (2012)

29 julio 2011

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Successful Treatment for Refractory Coronary Thrombus with Scoring Balloon Angioplasty

Yusuke Hosokawa, MD, Keiji Tanaka, MD, and Kyoichi Mizuno, MD, FACC, FAHA, FSCAI

A female with chronic atrial fibrillation presented with an acute myocardial infarction. The angiogram revealed total occlusion of the right coronary artery. A combined strategy using intracoronary thrombolysis, aspiration catheter, plain old balloon angioplasty, and ‘‘Fogarty-like’’ procedure was performed. However, we failed to achieve good coronary flow because the thrombus was large and hard with a calcified surface revealed by intravascular ultrasound examination. Ultimately, compression of the thrombus with the AngioSculptTM scoring balloon catheter (AngioScore, Fremont, CA) led to resolution of normal coronary flow without the need for implantation of a coronary stent. Calcified thrombus is rarely observed in a coronary artery embolism, especially one formed in the left atrial appendage. In this case, the AngioSculpt scoring balloon catheter shows efficacy in treating this calcified thrombus. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 79:282–287 (2012)

29 julio 2009

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Transhepatic Closure of Patent Foramen Ovale

Neeraj Jolly, MD, Gaurav Dhar, MD, and Zahid Amin, MD

Transhepatic right heart catheterization is an uncommon procedure for adult interventional cardiologists. We report its successful use for closure of a patent foramen ovale in an elderly patient without femoral vein access. Also described is a novel method of using a vascular plug to achieve hemostasis of the hepatic venous access site. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 75:56–59 (2010)

29 julio 2009

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. First-in-Man Case Report of the Use of an Edwards- Sapien Valve to Treat a Regurgitant CoreValve Aortic Valve Prosthesis

Maurizio Taramasso, MD, Andrew S.P. Sharp, MD, and Francesco Maisano, MD

Transcatheter aortic valve implantation is an alternative to conventional aortic valve replacement for patients at high surgical risk, with favorable procedural outcomes. Aortic regurgitation remains an off-label indication. Recent case reports describe the successful use of a second CoreValve inside a malpositioned first CoreValve. In the current case, we report for the first time a valve-in-valve procedure for the treatment of a severely insufficient CoreValve prosthesis using the Edwards-Sapien prosthesis. Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 75:51–55 (2010)

08 septiembre 2009

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Changes in Mitral Regurgitation After Transcatheter Aortic Valve Implantation

Apostolos Tzikas, MD, Nicolo Piazza, MD, Bas M. van Dalen, MD, Carl Schultz, MD, PhD, Marcel L. Geleijnse, MD, PhD, Robert-Jan van Geuns, MD, PhD, Tjebbe W. Galema, MD, Rutger-Jan Nuis, MSc, Amber Otten, MSc, Juan-Luis Gutierrez-Chico, MD, PhD, Patrick W. Serruys, MD, PhD, and Peter P. de Jaegere, MD, PhD

Objectives: To assess the acute and intermediate changes in mitral regurgitation (MR) severity after transcatheter aortic valve implantation (TAVI) with the CoreValve Revalving SystemTM (CRS). Copyright 2011 Wiley Periodicals, Inc. Catheterization and Cardiovascular Interventions 75:43–49 (2010)

04 diciembre 2010

EUROPEAN HEART JOURNAL. Percutaneous transarterial aortic valve implantation: what do we know?

John Webb and Alain Cribier

Transcatheter aortic valve implantation (TAVI) is assuming a major role in the routine management of patients with aortic stenosis. Surgical aortic valve replacement is generally accepted to prolong survival, on the basis of historical comparisons and long experience. However, recently percutaneous transarterial TAVI has assumed the position as the only therapy in any aortic stenosis patient group demonstrated to prolong survival in a randomized trial. Arguably, percutaneous TAVI is now the standard of care in symptomatic patients who are not candidates for conventional surgery. On the basis of almost 10 years of experience TAVI also appears to be a reasonable option for some operable, but high-risk patients. Nevertheless considerable work needs to be done before the indications for TAVI are expanded into lower risk groups. We review what is currently known about percutaneous transarterial implantation of the aortic. Published on behalf of the European Society of Cardiology. All rights reserved. Copyright © The Author 2010. For permissions please email: journals.permissions@oup.com. European Heart Journal (2011) 32, 140–147.

01 enero 2011

JACC. Percutaneous Transcatheter Mitral Valve Repair: A Classification of the Technology

Paul T.L. Chiam and Carlos E. Ruiz

Surgical treatment of mitral regurgitation (MR) has evolved from mitral valve replacement (MVR) to repair (MVR e ), because MVR e produces superior long-term outcomes. In addition, MVR can be achieved through minimally invasive approaches. This desire for less invasive approaches coupled with the fact that a significant proportion of patients—especially elderly persons or those with significant comorbidities or severe left ventricular (LV) dysfunction, are not referred for surgery, has driven the field of percutaneous MVR . Various technologies have emerged and are at different stages of investigation. A classification of percutaneous MVR e technologies on the basis of functional anatomy is proposed that groups the devices into those targeting the leaflets (percutaneous leaflet plication, percutaneous leaflet coaptation, percutaneous leaflet ablation), the annulus (indirect: coronary sinus approach or an asymmetrical approach; direct: true percutaneous or a hybrid approach), the chordae (percutaneous chordal implantation), or the LV (percutaneous LV remodeling). The percutaneous edge-to-edge repair technology has been shown to be noninferior to open repair in a randomized clinical trial (EVEREST II [Endovascular Valve Edge-to-Edge REpair Study]). Several other technologies employing the concepts of direct and indirect annuloplasty and LV remodeling have achieved first-in-man results. Most likely a combination of these technologies will be required for satisfactory MVR e e e . However, MVR is not possible for many patients, and MVR will be required. Surgical MVR is the standard of care in such patients, although percutaneous options are under development. JACC: CARDIOVASCULAR INTERVENTIONS VOL. 4, NO. 1, 2011. Copyright © 2011 BY THE AMERICAN COLLEGE OF CARDIOLOGY FOUNDATION ISSN 1936-8798. PUBLISHED BY ELSEVIER INC.