Commonly Searched EP Topics
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EP Lab Digest - Cardiac Resynchronization Therapy
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Also known as biventricular pacing; this is a form of device-based therapy that recoordinates the right and left ventricles in patients with heart failure.
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Cardiac Resynchronization Therapy for Treatment of Chronic Heart Failure Cardiac resynchronization therapy by means of biventricular pacing is a fairly new procedure that is showing promise.
Cardiac Resynchronization Therapy for Treatment of Chronic Heart Failure Cardiac resynchronization therapy by means of biventricular pacing is a fairly new procedure that is showing promise. Features: Cardiac Resynchronization Therapy for Treatment of Chronic Heart Failure Cardiac resynchronization therapy by means of biventricular pacing is a fairly new procedure that is showing promise. QRS duration decreased from 100 ms with RV pacing and 109 ms with LV pacing to 76 ms with biventricular...
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A Review of Cardiac Resynchronization Therapy in Systolic Heart Failure Patients in Sinus Rhythm and Atrial Fibrillation
Disclosure: Dr. Machado serves on the scientific advisory board for Guidant Corporation, and is a consultant for Medtronic, Guidant and Biotronik.
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Case Report: A Recently Released Implantable Biventricular Defibrillator
Recent advances in implantable cardioverter-defibrillator (ICD) devices, including those with cardiac resynchronization therapy, have been described. In this article, we will describe a case report in which the patient met the criteria for cardiac resynchronization therapy and received a recently released biventricular ICD.
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A New Approach for AV Optimization
There are currently about five million people with diagnosed heart failure in the United States, and each year 500,000 new cases are found. The five-year mortality rate for heart failure victims is about 50%. It is estimated that for each heart failure admission, a hospital will lose about $1,000.1 The implantation of bi-ventricular pacing devices has impacted quality of life for many of these patients. The benefits of cardiac resynchronization therapy (CRT) have been reported in the literature.2,3 However, a 2003 report stated that 30% of those with bi-ventricular devices implanted did not improve with CRT.4 In the original CRT trials, AV and VV optimization were performed at discharge and at ~ six-month intervals, as changes due to remodeling of the heart took place. This optimization was an attempt to ensure that paced timing events maximized cardiac hemodynamics. However, the 2003 report found that only 10% of patients were undergoing measured optimization post implant.
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Rapid Coronary Sinus Access in Cardiac Resynchronization Therapy: Initial Experience With the New SafeSheathCSG/Worley-1-09-STD Introducer
Delayed left ventricular activation has been shown to result in significant deleterious effects on cardiac function and output.
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Cardiac Resynchronization Therapy for Drug Refractory New York Heart Association Class IV Congestive Heart Failure Status- Post Failed Batista Procedure
Until recently, drug refractory congestive heart failure could only be treated via heart transplantation. Many factors, including a lack of donors and a relatively high five-year mortality rate, as well as the side effects associated with immunosuppression, have motivated the research of alternative theses substitute treatments.
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COMPANION and DEFINITE Add More Fuel to the Heart Failure Debate
The May 20th issue of the New England Journal of Medicine featured two articles that continue to feed the dialogue regarding devices and heart failure. The results of the COMPANION study and the DEFINITE study were both published, and a review of these studies and implications for practice follows.
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Intracardiac Echocardiography 101: The Beginner?s Guide to ICE Imaging and Cardiac Structure Recognition
Intracardiac echocardiography (ICE) was first used experimentally in the 1960s,1 with the first real use in the electrophysiology laboratory in the late 1980s.2 Since then, its usage has increased dramatically, especially recently with the popularity of ablative cures for atrial fibrillation and ventricular tachyarrhythmias, as well as for the assessment of cardiac resynchronization therapy.
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Direct Visualization for Coronary Venous Lead Placement
Implementation of cardiac resynchronization therapy (CRT) with biventricular pacing requires the placement of the left ventricular (LV) lead at an ideal site, typically on the lateral or posterior LV. The majority of implantations are performed transvenously in the Cardiac Electrophysiology Laboratory by advancing the LV lead retrograde into one of the coronary venous tributaries. The success of such implantation is highly dependent on the operator?s skill, the tools available, and the coronary venous anatomy.
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Spotlight Interview: Massachusetts General Hospital
The prestigious Massachusetts General Hospital is the third oldest hospital in the U.S. and the largest in New England. The Cardiac Arrhythmia Service at MGH has enjoyed a 26-year history in the electrophysiology field, becoming one of the most recognized EP leaders in the world. In this interview, the EP lab staff describe the latest procedures and techniques being used at MGH.
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