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  • inter-atrial
  • Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. (bioportfolio.com)
  • We hypothesed that as a result of the close proximity of Koch's triangle and low inter-atrial septal fibers, the RF ablation applied at this region may result in prolongation of inter-atrial conduction time (IACT). (cogprints.org)
  • Ventricular Dysfunction
  • The significant morbidity and mortality are attributed to three detrimental sequelae: (1) palpitations that can cause significant anxiety and discomfort, (2) loss of synchronous atrial-ventricular contraction leading to hemodynamic compromise and ventricular dysfunction, and (3) stasis of blood flow in the left atrium, resulting in thromboembolism and stroke. (oncologynurseadvisor.com)
  • pulmonary veins
  • In the CPVA method (1), contiguous ablation lesions are created to encircle the two left and right pulmonary veins (PVs), guided by a three-dimensional (3D) electroanatomic mapping system (Carto, Biosense Webster, Inc. or ESI NavX, St. Jude, Inc.) with a 3D left atrial (LA) geometry created either by using the mapping catheter or by importing a pre-recorded 3D computed tomography (CT) image. (clinicaltrials.gov)
  • The purpose of this study is to demonstrate the safety and effectiveness of the CardioFocus Endoscopic Ablation System with Adaptive Contact (HeartLight) in the treatment of atrial fibrillation by creating electrical isolation of the pulmonary veins. (clinicaltrials.gov)
  • Other efficacy success/failure criteria included acute isolation of all clinically relevant pulmonary veins, lack of ablation-induced left atrial flutter, use of AADs during a follow-up period and left heart ablation or implant for AF in follow-up. (clinicaltrials.gov)
  • transthoracic
  • More recent studies have demonstrated that harmonic echocardiography may allow transthoracic detection of left atrial thrombi and assessment of left atrial appendage function. (kup.at)
  • Harmonic transthoracic echocardiography allowed imaging of the left atrial appendage and recording of its velocities in 83 % and 74 % of cases, respectively. (kup.at)
  • Logistic regression analysis revealed that a peak left atrial appendage velocity greater than 0.25 m/s was the only independent transthoracic parameter for the exclusion of left atrial thrombi with an odds ration of 4.4 (95 % CI 1.4 to 14.5). (kup.at)