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https://www.readbyqxmd.com/read/27933590/three-dimensional-rotational-angiography-for-assessment-of-coronary-arteries-during-melody-valve-implantation-introducing-a%C3%A2-technique-that-may-improve-outcomes
#1
C R Pockett, J W Moore, H G El-Said
BACKGROUND: Adverse events from Melody valve implantation may be catastrophic. To date a role for three dimensional rotational angiography of the aortic root (3DRAA) during Melody valve implantation has not been established. OBJECTIVES: To describe the role of 3DRAA in the assessment of Melody valve candidacy and to demonstrate that it may improve outcomes. METHODS: All patients who underwent cardiac catheterisation for Melody valve implantation and 3DRAA between August 2013 and February 2015 were reviewed...
December 8, 2016: Netherlands Heart Journal
https://www.readbyqxmd.com/read/27930354/simultaneous-non-invasive-epicardial-and-endocardial-mapping-in-patients-with-brugada-syndrome-new-insights-into-arrhythmia-mechanisms
#2
Boris Rudic, Maria Chaykovskaya, Alexey Tsyganov, Vitaly Kalinin, Erol Tülümen, Theano Papavassiliu, Christina Dösch, Volker Liebe, Jürgen Kuschyk, Susanne Röger, Ibrahim El-Battrawy, Ibrahim Akin, Marina Yakovleva, Elena Zaklyazminskaya, Anna Shestak, Stanislav Kim, Mikhail Chmelevsky, Martin Borggrefe
BACKGROUND: The underlying mechanisms of Brugada syndrome (BrS) are not completely understood. Recent studies provided evidence that the electrophysiological substrate, leading to electrocardiogram abnormalities and/or ventricular arrhythmias, is located in the right ventricular outflow tract (RVOT). The purpose of this study was to examine abnormalities of epicardial and endocardial local unipolar electrograms by simultaneous noninvasive mapping in patients with BrS. METHODS AND RESULTS: Local epicardial and endocardial unipolar electrograms were analyzed using a novel noninvasive epi- and endocardial electrophysiology system (NEEES) in 12 patients with BrS and 6 with right bundle branch block for comparison...
November 14, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27920462/pacing-lead-is-more-easily-located-at-rvot-septum-in-patients-with-severe-tricuspid-regurgitation
#3
J Wang, H Chen, Y Su, J Ge
No abstract text is available yet for this article.
2016: Acta Cardiologica
https://www.readbyqxmd.com/read/27906085/tissue-engineered-cardiac-patch-seeded-with-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-promoted-the-regeneration-of-host-cardiomyocytes-in-a-rat-model
#4
Tadahisa Sugiura, Narutoshi Hibino, Christopher K Breuer, Toshiharu Shinoka
BACKGROUND: Thousands of babies are born with congenital heart defects that require surgical repair involving a prosthetic implant. Lack of growth in prosthetic grafts is especially detrimental in pediatric surgery. Cell seeded biodegradable tissue engineered grafts are a novel solution to this problem. The purpose of the present study is to evaluate the feasibility of seeding human induced pluripotent stem cell derived cardiomyocytes (hiPS-CMs) onto a biodegradable cardiac patch. METHODS: The hiPS-CMs were cultured on a biodegradable patch composed of a polyglycolic acid (PGA) and a 50:50 poly (l-lactic-co-ε-caprolactone) copolymer (PLCL) for 1 week...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27886610/integration-of-intracardiac-echocardiography-and-computed-tomography-during-atrial-fibrillation-ablation-combining-ultrasound-contours-obtained-from-the-right-atrium-and-ventricular-outflow-tract
#5
Kohki Nakamura, Shigeto Naito, Kenichi Kaseno, Yosuke Nakatani, Takehito Sasaki, Naofumi Anjo, Eiji Yamashita, Koji Kumagai, Nobusada Funabashi, Yoshio Kobayashi, Shigeru Oshima
BACKGROUND: We aimed to optimize the acquisition of the left atrial (LA) and pulmonary vein (PV) ultrasound contours for more accurate integration of intracardiac echocardiography (ICE) and computed tomography (CT) using the CARTO(®) 3 system during atrial fibrillation (AF) ablation. METHODS: Eighty-five AF patients underwent integration of ICE and CT using (1) the LA roof and posterior wall contours acquired from the right atrium (RA), (2) all LA/PV contours from the RA (Whole-RA-integration), (3) the LA roof/posterior wall contours from the RA and right ventricular outflow tract (RVOT) (Posterior-RA/RV-integration), and (4) all LA/PV contours from the RA and RVOT (Whole-RA/RV-integration)...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27885742/catheter-ablation-in-the-right-ventricular-outflow-tract-associated-with-occlusion-of-left-anterior-descending-coronary-artery
#6
Daniel Benhayon, Eyal Nof, William W Chik, Francis Marchlinski
Major vessel injury during right ventricular outflow tract ablation is not something widely recognized, and routine evaluation of the left anterior descending artery (LAD) location in relation to the septal right ventricle is not routinely performed. In the present article we report a case of acute LAD occlusion after RVOT ablation and then illustrate the intimately close relationship of the left anterior descending artery to the anterior septal site of the RVOT (∼ 2-3 cm under the pulmonic valve), using a combination of intracardiac echocardiography and 3D electroanatomical mapping (EAM) recorded during a second case, in order to specifically point to the area at risk...
November 25, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27828833/percutaneous-management-of-failed-bioprosthetic-pulmonary-valves-in-patients-with-congenital-heart-defects
#7
Pierpaolo Tarzia, Erika Conforti, Alessandro Giamberti, Alessandro Varrica, Luca Giugno, Angelo Micheletti, Diana Negura, Luciane Piazza, Antonio Saracino, Mario Carminati, Massimo Chessa
AIMS: We reviewed our center experience in the field of transcatheter pulmonary valve-in-valve implantation (TPViV), that is emerging as a treatment option for patients with pulmonary bioprosthetic valve (BPV) dysfunction. METHODS: Between April 2008 and September 2015, a total of six patients with congenital heart disease (four men) underwent TPViV due to stenosis of preexisting BPV. Four patients received a Melody Medtronic Transcatheter Pulmonary Valve and two an Edward Sapien Valve...
November 8, 2016: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/27788998/10-year-follow-up-after-radiofrequency-ablation-of-idiopathic-ventricular-arrhythmias-from-right-ventricular-outflow-tract
#8
Synne Dragesund Rørvik, Jian Chen, Per Ivar Hoff, Eivind Solheim, Peter Schuster
BACKGROUND: The aim of this study was to examine the effect of radiofrequency ablation (RFA) of ventricular arrhythmias from right ventricular outflow tract (RVOT) during long-term follow-up. METHODS: A follow-up analysis was conducted using an in-house questionnaire, as well as a qualitative assessment of the patients' medical records. The study population of 34 patients had a previous diagnosis of idiopathic VT or frequent PVCs from the RVOT, and received RFA treatment between 2002 and 2005...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27759948/selective-angiography-using-the-radiofrequency-catheter-an-alternative-technique-for-mapping-and-ablation-in-the-aortic-cusps
#9
Ivo Roca, Nuria Rivas, Jaume Francisco, Jordi Perez, Gabriel Acosta, Gerard Oristrell, Maria Terricabres, David Garcia-Dorado, Angel Moya
BACKGROUND: Ablation in aortic cusps could be necessary in up to 15% of the patients, especially in para-Hisian atrial tachycardia and ventricular arrhythmias arising from outflow tracts. Risk of coronary damage has led to recommendation of systematic coronary angiography (CA) during the procedure. Other image tests as intravascular (ICE) or transesophageal echocardiography (TEE) have been proposed. Both methods have limitations: additional vascular access for ICE and needing for additional CA in some patients in case of TEE...
October 19, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27751344/a-rare-case-of-right-ventricular-myxoma-causing-recurrent-stroke
#10
Prakash Aroor Sarvotham Rao, S N Nagendra Prakash, Somanath Vasudev, M Girish, Arun Srinivas, H P Guru Prasad, P Jayakumar, Venu Gopal Anandaswamy
We present a 62-year-old lady admitted in our hospital with two episodes of acute ischemic stroke about 2 weeks apart. She was evaluated for acute ischemic stroke and was thrombolysed for recent stroke in right MCA territory first time. On further evaluation, she was found to have a RVOT mass. A transthoracic and transesophageal echocardiogram revealed a PFO and a large, 5.1cm×2.3cm, ovoid, well circumscribed, echogenic mass in the right ventricle outflow tract attached by small pedicle to the ventricular side of anterior tricuspid leaflet, partly obstructing the right ventricular outflow tract and protruding through the pulmonic valve during systole...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27748330/hira-gene-is-lower-expressed-in-the-myocardium-of-patients-with-tetralogy-of-fallot
#11
Zhao-Ru Ju, Hui-Jun Wang, Xiao-Jing Ma, Duan Ma, Guo-Ying Huang
BACKGROUND: The most typical cardiac abnormality is conotruncal defects (CTDs) in patients with 22q11 deletion syndrome (22q11DS). HIRA (histone cell cycle regulator) gene, as one of the candidate genes located at the critical region of 22q11DS, was reported as possibly relevant to CTD in animal models. This study aimed to analyze the level of expression of the HIRA gene in tetralogy of Fallot (TOF) patients and the potential DNA sequence variations in the promoter region. METHODS: The messenger RNA (mRNA) expression was examined with quantitative real-time polymerase chain reaction in 39 myocardial tissues of the right ventricular outflow tract (RVOT) from TOF patients and 4 myocardial tissues of RVOT from noncardiac death children...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27728059/rheumatic-pulmonary-stenosis-a-rare-case-of-rvot-obstruction
#12
Harsh Kumar Garg
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27714602/reference-ranges-and-determinants-of-right-ventricle-outflow-tract-acceleration-time-in-healthy-adults-by-two-dimensional-echocardiography
#13
Alberto M Marra, Nicola Benjamin, Francesco Ferrara, Olga Vriz, Michele D'Alto, Antonello D'Andrea, Anna Agnese Stanziola, Luna Gargani, Antonio Cittadini, Ekkehard Grünig, Eduardo Bossone
The right ventricular outflow tract acceleration time (RVOT-AT) has shown to progressively shorten with increasing degrees of pulmonary pressure. However, the physiologic ranges of RVOT AT are based on small sample sizes and have not been investigated regarding their determining factors. The aim of this study was to investigate reference values and determining factors of RVOT-AT in a large population of healthy subjects and by values described in the literature. In the first part of the study, 1029 healthy subjects (mean age 45...
October 6, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27692918/optimal-timing-for-elective-early-primary-repair-of-tetralogy-of-fallot-analysis-of-intermediate-term-outcomes
#14
Michael E A Cunningham, Mary T Donofrio, Syed Murfad Peer, David Zurakowski, Richard A Jonas, Pranava Sinha
BACKGROUND: We have previously demonstrated that early primary repair of tetralogy of Fallot with pulmonary stenosis (TOF) can be safely performed without increase in hospital resource utilization or compromise to surgical technical performance scores (TPS). We sought to identify the optimal timing for elective early primary repair of TOF with respect to intermediate-term reintervention. METHODS: Retrospective review of all patients with TOF undergoing elective primary repair between September 2004 and December 2013 was performed...
September 28, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27687194/transcatheter-pulmonary-valve-replacement-reduces-tricuspid-regurgitation-in-patients-with-right-ventricular-volume-pressure-overload
#15
Thomas K Jones, Jonathan J Rome, Aimee K Armstrong, Felix Berger, William E Hellenbrand, Allison K Cabalka, Lee N Benson, David T Balzer, John P Cheatham, Andreas Eicken, Doff B McElhinney
BACKGROUND: Tricuspid regurgitation (TR) is a common and important comorbidity in patients with postoperative right ventricular outflow tract (RVOT) obstruction or pulmonary regurgitation (PR). Transcatheter pulmonary valve replacement (TPVR) has become a useful tool in the management of postoperative RVOT obstruction and PR, but it is unknown whether relief of the right ventricular volume and/or pressure overload by TPVR will have a beneficial effect on TR, as is often seen with surgical pulmonary valve replacement...
October 4, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27677644/right-ventricular-outflow-tract-rvot-changes-in-children-with-an-atrial-septal-defect-focus-on-rvot-velocity-time-integral-rvot-diameter-and-rvot-systolic-excursion
#16
Martin Koestenberger, William Ravekes, Alexander Avian, Gernot Grangl, Ante Burmas, Wolfgang Raith, Gerhard Cvirn, Marlene Grillitsch, Andreas Gamillscheg
OBJECTIVE: Aim of the study was to determine the influence of right heart volume overload in children with atrial septal defect (ASD) on right ventricular outflow tract (RVOT) variables. METHODS: A prospective study was conducted in 115 children (age range: 2 days-18.1 years) with a moderate to large ASD. We determined effects of age, body length (BL), body weight (BW), and body surface area (BSA) on the variables RVOT diameter, RVOT velocity time integral (VTI), and RVOT systolic excursion (SE), and tested the predictive value of published normal values for age, BW, BL, and BSA in our ASD patients...
September 2016: Echocardiography
https://www.readbyqxmd.com/read/27670128/percutaneous-pulmonary-valve-implantation-associated-ventricular-tachycardia-in-congenital-heart-disease
#17
Robert W Loar, Athar M Qureshi, Christina Y Miyake, Santiago O Valdes, Jeffrey J Kim, Caridad M De la Uz
BACKGROUND: Percutaneous pulmonary valve implantation (PPVI) is utilized for dysfunctional right ventricular outflow tracts (RVOT) to relieve obstruction, regurgitation, and RV dysfunction. PPVI has not been reported to induce arrhythmias. This study is the first to report the incidence of ventricular tachycardia (VT) after PPVI. METHODS: This was a retrospective study of all patients who had PPVI at a single institution. All patients were admitted after PPVI for overnight telemetry monitoring...
December 2016: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/27650224/usefulness-of-bubble-study-in-echocardiographic-diagnosis-of-contained-rupture-of-hydatid-cyst-in-the-right-ventricular-outflow-tract
#18
Amitoj Singh, Ravindra Sharma, Ashok Garg, Navin C Nanda, Mahmoud Elsayed, Ahmed Taher, Serkan Bulur
We describe an adult female presenting with dyspnea in whom both transthoracic and transesophageal echocardiography detected a mobile sac-like structure in the right ventricular outflow tract (RVOT) containing a heterogenous echogenic mass. This sac-like structure markedly changed its shape and size during the cardiac cycle. These findings and the fact that the patient lived in a rural area raised the possibility that this was a hydatid cyst. A bubble study using normal saline was useful in detecting a contained rupture of the cyst...
September 2016: Echocardiography
https://www.readbyqxmd.com/read/27649761/the-rovt-elan-valved-biplex-conduits-for-the-reconstruction-of-the-right-ventricular-outflow-tract
#19
Robert Guidoin, Yijun Fu, Bin Li, Nihal Weerasena, Jean-Michel Bourget, Royston Paynter, Xinxin Li, Jing Lin, Lu Wang, Boyin Qin, Randolph Guzman, Denis Desaulniers, Guy Dionne, Lucie Germain, Ze Zhang
The reconstruction of the right ventricular outflow tract (RVOT) system represents a considerable challenge for both manufacturers and surgeons because the patients requiring this type of devices have a very diverse set of anatomical challenges that can lead to complications and subsequent early device failures. We conducted an indepth investigation of a porcine-valve conduit explanted from a patient following an adverse event. A control device was analyzed as a reference. The rapid aging of the porcine valve in the right side of the heart together with major thrombus formation raises several questions...
2016: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/27646458/combined-right-ventricular-outflow-tract-epicardial-and-endocardial-late-potential-ablation-for-treatment-of-brugada-storm-a-case-report-and-review-of-the-literature
#20
Sandeep A Saha, Kousik Krishnan, Christopher Madias, Richard G Trohman
A 34-year-old man with Brugada syndrome (BrS) presented with electrical storm, manifested as multiple appropriate shocks from his implantable cardioverter-defibrillator over a period of 7 hours. He had not tolerated prior treatment with quinidine, and had self-discontinued cilostazol citing persistent palpitations. After stabilization with intravenous isoproterenol, an electrophysiology study was performed but no spontaneous or induced ventricular ectopic beats were identified. A three-dimensional (3D) endocardial electro-anatomic map of the right ventricular outflow tract (RVOT), pulmonic valve, and pulmonary artery, as well as a 3D epicardial map of the RVOT, were created...
September 19, 2016: Cardiology and Therapy
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