نتایج جستجو برای: rvot

تعداد نتایج: 491  

2017
Niels Decher Beatriz Ortiz-Bonnin Corinna Friedrich Marcus Schewe Aytug K Kiper Susanne Rinné Gunnar Seemann Rémi Peyronnet Sven Zumhagen Daniel Bustos Jens Kockskämper Peter Kohl Steffen Just Wendy González Thomas Baukrowitz Birgit Stallmeyer Eric Schulze-Bahr

In a patient with right ventricular outflow tract (RVOT) tachycardia, we identified a heterozygous point mutation in the selectivity filter of the stretch-activated K2P potassium channel TREK-1 (KCNK2 or K2P2.1). This mutation introduces abnormal sodium permeability to TREK-1. In addition, mutant channels exhibit a hypersensitivity to stretch-activation, suggesting that the selectivity filter i...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2012
Paolo Guccione Ornella Milanesi Ziyad M Hijazi Giacomo Pongiglione

Percutaneous pulmonary valve implantation (PPVI) is now an accepted alternative option to conventional surgery for patients with dysfunctional conduits between the right ventricle and pulmonary artery. PPVI will reduce the total number of repeat operations in such patients. However, surgery remains the primary option in postoperative tetralogy of Fallot patients with severe pulmonary regurgitat...

2011
Matthew J. Gillespie Matthew A. Harris Shyam Sathanandam Andrew C. Glatz

Percutaneous pulmonary valve replacement is one of the most important advancements in the field of interventional cardiology in the past decade.1,2 However, currently available technologies are not applicable to patients with oversized right ventricular outflow tracts (RVOTs), especially when there is concomitant proximal branch pulmonary artery (PA) stenosis. This combination commonly is encou...

2012
Young-Seok Lee Hyoung-Doo Lee

Pulmonary regurgitation (PR) is a frequent sequelae after repair of tetralogy of Fallot, pulmonary atresia, truncus arteriosus, Rastelli and Ross operation. Due to patient growth and conduit degeneration, these conduits have to be changed frequently due to regurgitation or stenosis. However, morbidity is significant in these repeated operations. To prolong conduit longevity, bare-metal stenting...

2004
Bulent Ozin Bahar Pirat Haldun Muderrisoglu

Tachycardia induced tachycardias are not common in clinical practice, and it is believed that most cases of double tachycardia are coincidental. The existence of two different tachycardias in the same patient almost always poses problems in the electrophysiology laboratory. However, in rare instances, the emergence of a second tachycardia can actually provide invaluable information about the fi...

2013
Sima Soheilykhah Ali Sheikhani Alireza Ghorbani Sharif Mohammad M Daevaeiha

A premature ventricular contraction (PVC) is relatively a common event where the heartbeat is initiated by the other pathway rather than by the Sinoatrial node, the normal heartbeat initiator. Determining PVC foci is important for ablation procedure and it can help in pre-procedural planning and potentially may improve ablation outcome. In this study, 12-lead Electrocardiogram (ECG) of 87 patie...

Journal: :European Heart Journal 2022

Abstract Background Detection of haemodynamically significant shunting from atrial septal defect (ASD) can be identified by using the pulmonary-systemic flow ratio (Qp/Qs). However, calculation Qp/Qs echocardiography relies on geometric assumptions that outflow tracts are circular, suffers squared linear measures, and accurate measurement right ventricular tract (RVOT) diameter is challenging. ...

Ashkan Hashemi, Manuchehr Hekmat, Shahla Roodpeyma, Sima Rafieyian,

Background and Objective: The aim of this study was to analyze our indications, surgical procedures, and clinical outcomes of patients undergoing reoperation after surgical correction of tetralogy of Fallot (TOF). Methods: Thirty seven consecutive patients who underwent reoperation late after intra-cardiac repair of TOF within a period of 10 years were assessed. Results: The most co...

2012
Young Rak Cho Jong Sung Park

A 17-year-old man was referred for aborted sudden cardiac death. Ventricular fibrillation (VF) was recorded by automated external defibrillator. Post-resuscitation electrocardiograms showed frequent monomorphic premature ventricular complexes (PVCs), with left bundle branch block configuration and inferior axis. Cardiac arrest due to VF recurred twice within the initial 42 hours. Rhythm monitor...

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