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Right ventricular outflow tract

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https://www.readbyqxmd.com/read/28917557/idiopathic-ventricular-arrhythmias-originating-from-the-right-coronary-sinus-prevalence-electrocardiographic-and-electrophysiologic-characteristics-and-catheter-ablation
#1
Yunlong Wang, Zhuo Liang, Shaoqin Wu, Zhihong Han, Xuejun Ren
BACKGROUND: Ventricular arrhythmias (VAs) of right coronary cusp (RCC) are not fully characterized. OBJECTIVES: To investigate the electrocardiographic and electrophysiologic characteristics, mapping and ablation of RCC-VAs. METHODS: Among 256 consecutive patients undergoing electrophysiologic evaluation and ablation of VAs of ventricular outflow tract origin, data were compared among 27 RCC-VAs, 50 VAs of the septal aspect of right ventricular outflow tract (RVOT, including from pulmonary artery) and 9 VAs of left coronary cusp (LCC)...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28901232/decellularized-allografts-for-right-ventricular-outflow-tract-reconstruction-in-children
#2
Francisco Diniz Affonso da Costa, Jonathan R G Etnel, Renato Torres, Eduardo M Balbi Filho, Rafael Torres, Allyson Calixto, Leonardo A Mulinari
OBJECTIVE: Determine the midterm outcomes of decellularized allografts for right ventricular outflow tract (RVOT) reconstruction in children less than 12 years of age. METHODS: The study included all consecutive patients submitted to RVOT reconstruction with decellularized allografts between June 2006 and June 2016. Besides clinical and echocardiographic control, 20 patients with more than five years of follow-up were evaluated with computed tomography (CT) scans to determine allograft diameters and calcium scores...
September 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28895301/early-leaflet-thrombosis-complicating-transcatheter-implantation-of-a-sapien-3-valve-in-a-native-right-ventricular-outflow-tract
#3
Mounir Riahi, Philipp Blanke, John Webb, Ronald G Carere
A 59-year-old female with Tetralogy of Fallot had a previous complete repair with RVOT patch enlargement. She developed subsequent severe symptomatic (NYHA III) pulmonary regurgitation with severe RV dilatation. She had a concomitant interstitial lung disease secondary to hypersensitivity pneumonitis that precluded her from cardiac surgery. After preprocedural assessment using computed tomography, echocardiography and invasive angiography we decided to implant a 29 mm Edwards Sapien 3 valve without pre-stenting...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28895283/right-ventricle-outflow-tract-prestenting-in-vitro-testing-of-rigidity-and-corrosion-properties
#4
Bjorn Cools, Stephen Brown, Martine Wevers, Jan Van Humbeeck, Derize Boshoff, Cis Verdonckt, Marc Gewillig
BACKGROUND: The aim of this study was to assess the resistance to compression (stiffness) of frequently used stents for right ventricular outflow tract prestenting. In addition, to assess the corrosion potential when different types of stent alloys come into contact with each other. METHOD: Different stents were tested in vitro in various combinations at specialized metallurgic laboratories. A bench compression test was used to assess resistance to compression of singular and joined combinations of stents...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28894058/-ruptured-aneurysm-of-the-sinus-of-valsalva-accompanied-with-a-bicuspid-aortic-valve-in-an-elderly-man-report-of-a-case
#5
Toshifumi Murase, Susumu Tamura, Yasuhiro Ohzeki, Kunio Ebine
The combination of ruptured aneurysm of the sinus of Valsalva and a bicuspid aortic valve is very rare in an elderly person. A 71-year-old man with ruptured aneurysm of the sinus of Valsalva and a bicuspid aortic valve had undergone an operation. He was admitted to his other hospital because of heart failure. He was transferred to our hospital to undergo treatment for ruptured aneurysm of sinus of Valsalva. At our hospital, echocardiography findings showed ruptured aneurysm of the sinus of Valsalva, a ventricular septal defect (VSD), and severe aortic regurgitation with moderate stenosis of the bicuspid aortic valve...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28890667/role-of-3d-echocardiography-in-cardiac-surgery-strengths-and-limitations
#6
REVIEW
Edwin Wilberforce Turton, Jörg Ender
PURPOSE OF REVIEW: This review aims to highlight the general and specific strengths and limitations of intraoperative 3D echocardiography. This article explains the value of real-time three-dimensional transesophageal echocardiography (RT 3D TEE) during cardiac surgery and cardiac interventions. RECENT FINDINGS: Recently published recommendations and guidelines include the use of RT 3D TEE. RT 3 D TEE provides additional value particularly for guidance during cardiac interventions (i...
2017: Current Anesthesiology Reports
https://www.readbyqxmd.com/read/28890565/anaesthetic-management-of-infants-posted-for-repair-of-anomalous-origin-of-left-coronary-artery-from-pulmonary-artery
#7
Chitralekha Patra, Naveen G Singh, N Manjunatha, Anand Bhatt
First described in 1908, anomalous origin of left coronary artery from pulmonary artery is a very rare congenital anomaly. Here, the right coronary artery is usually enlarged and has a normal origin from aorta. Numerous collaterals connect the two coronary arteries over right ventricular outflow tract or interventricular septum. It is one of the most common causes of myocardial ischaemia and infarction in children.
August 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28890083/surgical-technique-for-placement-of-the-melody-valve-in-a-dilated-right-ventricular-outflow-tract
#8
Matteo Trezzi, Varsha M Bandisode, Minoo N Kavarana, Scott M Bradley
No abstract text is available yet for this article.
August 31, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28882285/stenting-of-the-right-ventricular-outflow-tract-promotes-better-pulmonary-arterial-growth-compared-with-modified-blalock-taussig-shunt-palliation-in-tetralogy-of-fallot-type-lesions
#9
Daniel Quandt, Bharat Ramchandani, John Stickley, Chetan Mehta, Vinay Bhole, David J Barron, Oliver Stumper
OBJECTIVES: This study sought to compare pulmonary arterial (PA) growth during palliation after right ventricular outflow tract (RVOT) stenting versus modified Blalock-Taussig shunt (mBTS) in patients coming forward for complete repair of tetralogy of Fallot-type lesions. BACKGROUND: RVOT stenting is a recent alternative to mBTS in the initial palliation of selected patients with Fallot-type lesions. METHODS: This was a retrospective, single-center study of nonrandomized, consecutive palliated Fallot patients over a 10-year period...
September 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28882284/harmony-feasibility-trial-acute-and-short-term-outcomes-with-a-self-expanding-transcatheter-pulmonary-valve
#10
Lisa Bergersen, Lee N Benson, Matthew J Gillespie, Sharon L Cheatham, Andrew M Crean, Kan N Hor, Eric M Horlick, Te-Hsin Lung, Brian T McHenry, Mark D Osten, Andrew J Powell, John P Cheatham
OBJECTIVES: This study sought to obtain in vivo data to confirm assumptions on device loading conditions and assess procedural feasibility, safety, and valve performance. BACKGROUND: The Harmony transcatheter pulmonary valve (Medtronic, Minneapolis, Minnesota) was designed for patients with severe pulmonary regurgitation who require pulmonary valve replacement. METHODS: Three sites participated in this first Food and Drug Administration-approved early feasibility study using an innovative device design to accommodate the complex anatomy of the right ventricular outflow tract...
September 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28878577/echocardiographic-classification-and-surgical-approaches-to-double-outlet-right-ventricle-for-great-arteries-arising-almost-exclusively-from-the-right-ventricle
#11
Kun-Jing Pang, Hong Meng, Sheng-Shou Hu, Hao Wang, David Hsi, Zhong-Dong Hua, Xiang-Bin Pan, Shou-Jun Li
Selecting an appropriate surgical approach for double-outlet right ventricle (DORV), a complex congenital cardiac malformation with many anatomic variations, is difficult. Therefore, we determined the feasibility of using an echocardiographic classification system, which describes the anatomic variations in more precise terms than the current system does, to determine whether it could help direct surgical plans. Our system includes 8 DORV subtypes, categorized according to 3 factors: the relative positions of the great arteries (normal or abnormal), the relationship between the great arteries and the ventricular septal defect (committed or noncommitted), and the presence or absence of right ventricular outflow tract obstruction (RVOTO)...
August 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28878101/percutaneous-closure-of-two-acquired-aorto-right-ventricular-fistulae-following-right-ventricular-outflow-tract-surgery
#12
Sofia A Horvath, Saqib Ali Gowani, Christian Koelbl, John F Rhodes, Esteban Escolar, Orlando Santana
The present case illustrates the successful transcatheter closure of an unusual double aortic root-to-right ventricular outflow tract fistula utilizing two Amplatzer duct occluders II.
September 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28857726/initial-assessment-of-a-novel-delivery-system-nudel%C3%A2-%C3%A2-for-the-covered-cheatham-platinum-stent
#13
Gareth J Morgan, Damien Kenny, Christopher Duke, Kevin P Walsh, Shakeel A Qureshi
Aims We sought to evaluate the first-in-man use of a new system for implantation of covered stents in patients with complex structural and CHD. Methods and results Retrospective data were collected of the first 13 NuDEL™ delivery systems used in patients. The NuDEL™ comprises a covered Cheatham-Platinum stent mounted on a balloon-in-balloon and pre-loaded in a long delivery sheath. Data were collected from three centres in the United Kingdom and Ireland. A total of 13 covered stents were delivered via 12 NuDEL™ delivery systems in 12 patients...
October 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28851718/acute-and-midterm-outcomes-of-transcatheter-pulmonary-valve-replacement-for-treatment-of-dysfunctional-left-ventricular-outflow-tract-conduits-in-patients-with-aortopulmonary-transposition-and-a-systemic-right-ventricle
#14
Wendy Whiteside, Justin T Tretter, Jamil Aboulhosn, Osamah Aldoss, Aimee K Armstrong, Martin L Bocks, Matthew J Gillespie, Thomas K Jones, Mary Hunt Martin, Jeffrey J Meadows, Christina M Metcalf, Mariel E Turner, Thomas Zellers, Bryan H Goldstein
BACKGROUND: Transcatheter pulmonary valve replacement (TPVR) is an established therapy for dysfunctional right ventricular (RV) outflow tract conduits. TPVR in patients with congenitally corrected transposition of the great arteries, subpulmonary left ventricle, and left ventricular outflow tract (LVOT) conduit dysfunction has not been studied. Unique anatomic and physiological aspects of this population may contribute to distinct risks and outcomes. METHODS AND RESULTS: Across 10 US centers, 27 patients with a dysfunctional LVOT conduit were evaluated in the catheterization laboratory between December 2008 and August 2015 with the intent to perform TPVR...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28845003/-diagnosis-of-right-ventricular-outflow-tract-and-intraoperative-lesion-in-patients-with-right-coronary-artery-sinus-rupture-by-transthoracic-echocardiography
#15
Xiongfei Liang, Yifeng Yang, Wei Lin
To investigate the role of thoracic echocardiography in diagnosis and differential diagnosis of the right ventricular outflow tract into the right aorta with right ventricular aneurysm rupture. 
 Methods: A total of 19 patients with sinus rupture caused by ventricular septal defect in the right ventricular outflow road were reviewed. These patients were diagnosed as aortic right coronary sinus by preoperative transthoracic echocardiography from February 2010 to September 2016 in Xiangya Second Hospital and Xiangya Medical College Affiliated Haikou Hospital...
July 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28843747/arrhythmogenic-right-ventricular-cardiomyopathy-arvc-in-a-young-female-athlete-at-36-weeks-gestation-a-case-report
#16
Hae Yoon Grace Choung, Monika Vyas, Daniel Jacoby, Brian West
A 26year old east African professional athlete presented to the obstetric clinic for a routine visit at 36 weeks gestation. She had a history of Right Ventricular Outflow Tract - Ventricular Tachycardia (RVOT-VT) with an episode of cardiac arrest in the past, and had been treated with ablation 4 years earlier. Her current visit was uneventful, her pregnancy progressing normally. Following the visit she went to a local restaurant where she suffered a cardiac arrest that was unresponsive to therapy. Chest compressions were continued from the time of her collapse until an emergency caesarian section was performed, delivering a healthy female infant...
July 25, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28843325/pulmonary-valve-procedures-late-after-repair-of-tetralogy-of-fallot-current-perspectives-and-contemporary-approaches-to-management
#17
REVIEW
Catriona J Bhagra, Edward J Hickey, Alexander Van De Bruaene, S Lucy Roche, Eric M Horlick, Rachel M Wald
Few topics in adult congenital heart disease have approached the level of scrutiny bestowed on pulmonary valve replacement (PVR) strategies late after tetralogy of Fallot (TOF) repair. Despite the successes of primary surgery for TOF, there is a growing group of adults with residual right ventricular outflow tract and pulmonary valve dysfunction. Patients with residual chronic pulmonic regurgitation as a consequence of earlier surgery can later develop symptoms of exercise intolerance and complications including heart failure, tachyarrhythmias, and sudden cardiac death...
September 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28829836/reference-intervals-of-echocardiographic-measurements-in-healthy-adult-dairy-goats
#18
Olga Szaluś-Jordanow, Michał Czopowicz, Lucjan Witkowski, Marcin Mickiewicz, Tadeusz Frymus, Iwona Markowska-Daniel, Emilia Bagnicka, Jarosław Kaba
OBJECTIVES: To determine references intervals for echocardiographic measurements in adult dairy goats. ANIMALS: 125 clinically healthy, adult dairy goats aged 2-9 years, belonging to two breeds-Polish Fawn Improved (PFI, n = 64, weight range from 46 to 73, median of 58.5kg) and Polish White Improved (PWI, n = 61, weight range from 48 to 80 kg, median of 67.9kg), closely related to French Alpine and Saanen, respectively. METHODS: Non-invasive transthoracic echocardiography examination was performed in unsedated goats in a standing position...
2017: PloS One
https://www.readbyqxmd.com/read/28814489/right-ventricular-outflow-tract-stent-versus-bt-shunt-palliation-in-tetralogy-of-fallot
#19
Daniel Quandt, Bharat Ramchandani, Gemma Penford, John Stickley, Vinay Bhole, Chetan Mehta, Timothy Jones, David James Barron, Oliver Stumper
OBJECTIVE: This study sets out to compare morbidity, mortality and reintervention rates after stenting of the right ventricular outflow tract (RVOT) versus modified Blalock-Taussig shunt (mBTS) for palliation in patients with tetralogy of Fallot (ToF)-type lesions. METHODS: Retrospective case review study evaluating 101 patients (64 males) with ToF lesions who underwent palliation with either mBTS (n=41) or RVOT stent (n=60) to augment pulmonary blood flow over a 10-year period...
August 16, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28800949/pulmonary-sinus-cusp-mapping-and-ablation-a-new-concept-and-approach-for-idiopathic-right-ventricular-outflow-tract-arrhythmias
#20
Jinlin Zhang, Cheng Tang, Yonghua Zhang, Xi Su
BACKGROUND: Right ventricular outflow tract (RVOT) ventricular arrhythmias (VAs) may originate from the pulmonary sinus cusps (PSCs) far more frequently than previously recognized. OBJECTIVE: The purpose of this study was to assess whether mapping and ablation in PSCs might be an appropriate first-choice treatment in unselected patients with idiopathic RVOT VAs. METHODS: Ninety consecutive patients with VAs of RVOT-type origin were prospectively enrolled at our institution between August 2015 and September 2016...
August 9, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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