Search results for "Reentry"

Comparison Between Influence Of The Conduction Velocity And the Refractory Period Variations On The Reentry Mechanism

2005

Sustained reentry in a 3d regionally ischemic human heart. A simulation study

2016

In this work, we have studied the vulnerable window and propagation patterns in a human heart during acute ischemia. A 3-D biventricular model of a human heart with realistic heterogeneity and fiber orientations has been considered. The ischemic region was located in the anterior left ventricular wall mimicking the occlusion of the circumflex artery. The electrical activity of the tissue was modeled with the monodomain model along with a modified version of the ten Tusscher 2006 ionic model. The model predicts the generation of sustained re-entrant activity in the form of a rotor around the ischemic zone. Patterns in the form of figure-of-eight were also observed within the vulnerable windo…

Multicenter experience with the antegrade fenestration and reentry technique for chronic total occlusion recanalization

2020

Objectives We aimed to evaluate the efficacy and safety of antegrade fenestration and reentry (AFR) for chronic total occlusion (CTO) recanalization in a multicenter registry. Background Adoption of antegrade dissection/reentry (ADR) for CTO recanalization has been limited, and novel ADR techniques are needed. Methods AFR involves the balloon-induced creation of multiple fenestrations between the false and true lumen. A targeted true lumen reentry is subsequently achieved with a low tip-load polymer-jacketed guidewire. Following the initial description and dissemination of AFR, patients undergoing AFR-based CTO recanalization at nine centers were included in the present registry. Study endp…

Who am i : reconstructing cultural identity upon reentry

2012

The topic of this thesis is reentry adaptation and its effects on an individual’s cultural identity. The purpose of the study is to find out what kinds of problems may arrive during reentry adaptation, how identity is changed as a result of intercultural experiences, as well as what kinds of communication strategies help the entire adaptation process. The aim of the study is to examine what kinds of factors should be taken into account during reentry in order to make it easier on the returnees. In addition the aim is to investigate how individuals are able to comprehend their new cultural identity and in which ways they are able to communicate the possible changes to friends and family at h…