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Detailed substrate mapping is important for catheter ablation. However, the influence of the electrode spacing of the mapping catheter on the substrate map has not been well clarified. The aim of this study was to investigate the influence of the electrode spacing of the mapping catheter on the voltage of the substrate map.
This article was published in the following journal.
Name: Journal of cardiology
The Duration of the Amplified Sinus-P-Wave Identifies Presence of Left Atrial Low Voltage Substrate and Predicts Outcome After Pulmonary Vein Isolation in Patients With Persistent Atrial Fibrillation.
Left atrial (LA) low-voltage substrate (LVS) potentially slows intra-atrial conduction, which might identify patients at risk for arrhythmia recurrence following pulmonary vein isolation (PVI).
Voltage-based methods currently form the diagnostic and therapeutic basis of clinical cardiac electrophysiology. These include both noncontact-based approaches (e.g., body surface electrocardiogram) a...
This study aimed to evaluate left atrial (LA) remodeling and fibrosis in paroxysmal atrial fibrillation (AF) using speckle tracking echocardiography (STE) based on the findings with radiofrequency ca...
The primary objective of this investigation is to compare the efficacy of two different AF ablation strategies in older patients with paroxysmal AF: Pulmonary vein isolation alone versus a...
The aim of this study is to quantify and characterize the outcomes of radiofrequency (RF) ablation after, and the utility of electroanatomical mapping with the Advisor™ HD Grid Mapping C...
This is a prospective, non-randomized study to determine the feasibility of using a new technique called Dynamic Substrate Mapping (DSM) to help guide the treatment of ischemic ventricular...
In this clinical investigation, the safety and feasibility of the novel EnSite™ HD Grid Catheter mapping system for advanced high-density three-dimensional mapping will be studied in pat...
Aim of the present prospective, single-centre study is to determine the outcome after pure PVI using HeartLight™ in 100 patients with different extents of LA-LVA. The latter will be ass...
The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It can be also estimated using various imaging techniques or other pressure readings such as PULMONARY CAPILLARY WEDGE PRESSURE (an estimate of left atrial pressure) and CENTRAL VENOUS PRESSURE (an estimate of right atrial pressure).
Infections resulting from the use of catheters. Proper aseptic technique, site of catheter placement, material composition, and virulence of the organism are all factors that can influence possible infection.
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
Placement of a balloon-tipped catheter into the pulmonary artery through the antecubital, subclavian, and sometimes the femoral vein. It is used to measure pulmonary artery pressure and pulmonary artery wedge pressure which reflects left atrial pressure and left ventricular end-diastolic pressure. The catheter is threaded into the right atrium, the balloon is inflated and the catheter follows the blood flow through the tricuspid valve into the right ventricle and out into the pulmonary artery.
Recording the locations and measurements of electrical activity in the EPICARDIUM by placing electrodes on the surface of the heart to analyze the patterns of activation and to locate arrhythmogenic sites.