Remote Catheter Navigation Systems
Abstract Remote catheter navigation to perform cardiac ablation can offer improved and stable catheter movement, as well as reaching locations that might be difficult to reach manually. Remote navigation systems…
Irrigated and Cooled-Tip Radiofrequency Catheter Ablation
Abstract In animal experiments, cooled ablation overcomes the limitations of standard radiofrequency (RF) delivery by cooling the catheter tip and preventing an impedance rise, thus allowing higher power delivery and…
Ablation of Focal Atrial Tachycardias
Abstract Focal atrial tachycardia (AT) is the least common form of supraventricular tachycardia (SVT). It accounts for approximately 5% to 15% of SVT cases undergoing catheter ablation. Focal AT is…
Intracardiac Echocardiography, Computed Cardiac Tomography, and Magnetic Resonance Imaging for Guiding Mapping and Ablation
Abstract Cardiac imaging studies play an essential role in contemporary invasive electrophysiologic mapping and ablation procedures. From guiding appropriate patient selection, to preprocedure definition of the substrate, to intraprocedural demonstration…
Catheter Cryoablation: Biophysics and Clinical Applications
Abstract Cryoablation is a safe and efficient energy for treating a variety of arrhythmic substrates at risk of atrioventricular (AV) block during ablation, including AV nodal reentrant tachycardia and septal…
Biophysics and Pathophysiology of Radiofrequency Lesion Formation
Abstract Radiofrequency (RF) catheter ablation depends upon the conversion of electrical energy to tissue heat that results in thermal injury and necrosis of the targeted arrhythmogenic tissue. Tissue heating results…
Guiding Lesion Formation During Radiofrequency Catheter Ablation
Abstract Titrating radiofrequency (RF) energy in cardiac catheter ablation procedures is a key component of creating effective, durable lesions while minimizing the risk of procedural complications. Because RF catheter ablation…
Operative Management
In the operating room, standard monitoring techniques (e.g., central venous line, arterial line, bladder catheter) are used. Swan-Ganz catheter monitoring is useful in high-risk patients with elevated pulmonary pressure or…
Carcinoid Valvular Disease
Carcinoid tumors are rare with an incidence of about 4 per 100,000 general population per year. They originate from enterochromaffin cells, which are localized in 70% of cases in the…
Reoperations
Reoperations are uncommon following a successful valvular reconstruction. When they become necessary, the circumstances of the recurrent dysfunction, the mechanisms involved, and the surgical management are important considerations since accurate…
