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Author(s):
Jun Dong
,
Hugh Calkins
Added:
3 years ago
Transvenous catheter ablation has become a curative treatment for many arrhythmias. Knowing the precise catheter location in relation to true cardiac anatomy will benefit catheter ablation procedures. A novel electroanatomic mapping system (CartoMerge™, Biosense Webster) with the capability of integrating pre-procedural computed tomography (CT) or magnetic resonance (MR) images with…
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Author(s):
Hans Joachim Nesser
Added:
3 years ago
Tissue Doppler-based measurements of myocardial strain are possible and accurate for structures that move along the ultrasound beam, but are underestimated in other directions and even impossible for angles close to 90º. To overcome these limitations, the speckle tracking technique was introduced in 2004, offering a more user-friendly workflow and better reproducibility.1 This echocardiographic…
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Author(s):
Soraya M Samii
,
Gerald V Naccarelli
Added:
3 years ago
Patients presenting with implantable cardioverter–defibrillator (ICD) shocks are increasingly common, primarily due to the expansion of ICD-placement indications. The discomfort and pain associated with ICD shocks often result in immediate medical attention. This occurs in emergency rooms and as acute visits in doctor’s offices. With the advances in remote monitoring, these alerts can also occur…
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Author(s):
Usha B Tedrow
Added:
3 years ago
Since the 1980s, dramatic advances in electrophysiology procedures have occurred. Catheter positioning is most often assisted by fluoroscopy. Sophisticated electroanatomical mapping systems can also display catheter position and create a 3D depiction of the anatomy. Magnetic resonance imaging (MRI) and computed tomography (CT) data can also be integrated, facilitating complex ablation procedures…
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Author(s):
Erik B Friedrich
,
Michael Böhm
Added:
3 years ago
Chronic heart failure (CHF) is a major public health problem in industrialized societies, with an incidence approaching 10 per 1,000 population after age 65 and an age-dependent prevalence of less than 1% between ages 45 and 55, 2-5% between ages 65 and 75, and approximately 10% for patients aged 80 years or more.1-3 Thus, HF is primarily a condition of the elderly, and approximately 80% of…
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Author(s):
Barry Love
Added:
3 years ago
Children and adults with congenital heart disease are increasingly benefiting from non-surgical alternatives to repair their heart defects. The last decade has seen a remarkable advance in the tools and techniques used to treat congenital heart disease in the cardiac catheterization laboratory. This article summarizes a few of the important tools available in 2005.
Atrial Septal Defect
Secundum…
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Author(s):
Etienne Delacrétaz
Added:
3 years ago
Catheter ablation of SVT has emerged as a curative treatment with high success rates and plays a central role in the management of supraventricular tachycardia (SVT).This short review aims to give an update on the outcomes of catheter ablation and provide a guide to appropriate decision making in patients with SVT.
Mechanisms of SVT
Tachycardias can be categorized as ventricular (involving the…
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Author(s):
JM Prutkin
,
MA Chen
,
RW Rho
,
et al
Added:
3 years ago
Numerous clinical trials involving patients with severe, symptomatic heart failure and a wide QRS complex have shown benefits from cardiac resynchronization therapy (CRT). CRT can increase left ventricular ejection fraction (LVEF), decrease LV volume and mitral regurgitation, improve symptoms caused by heart failure,1-3 and may also improve mortality.4,5 Current American College of Cardiology/…
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Author(s):
Soraya M Samii
,
Javier E Banchs
Added:
3 years ago
The use of implantable devices to treat arrhythmias started with the implantable pacemaker back in the late 1950s. The risks and costs of implantation limited the indications for the procedure initially. A similar pattern was seen with the initial implantable cardioverter-defibrillators (ICDs) in the early 1980s. In the late 1990s, technology of both these devices focused on the management of…
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Author(s):
Christopher M Kramer
Added:
3 years ago
Cardiovascular Magnetic Resonance in Ischemic Heart Disease
Left Ventricular Structure and Function at Rest
The most fundamental quantitative measurements of the heart include those of ventricular size and function. Due to its high spatial and temporal resolution and the freedom to image in any plane, cardiovascular magnetic resonance (CMR) imaging is especially suited for this task…
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