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https://www.readbyqxmd.com/read/27913077/pyloric-obstruction-secondary-to-epicardial-pacemaker-implantation-a-case-report
#1
G Bedoya Nader, H B Kellihan, D E Bjorling, J McAnulty
A 10-year old Lhasa Apso dog was presented for an acute history of exercise intolerance and hind limb weakness. High grade second degree atrioventricular block with an atrial rate of 200 beats per minute, ventricular rate of 40 beats per minute and an intermittent ventricular escape rhythm, was diagnosed on electrocardiograph. A transdiaphragmatic, unipolar, epicardial pacemaker was implanted without immediate surgical complications. Severe vomiting was noted 12 h post-operatively. Abdominal ultrasound and a barium study supported a diagnosis of pyloric outflow obstruction and exploratory abdominal surgery was performed...
November 29, 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27909491/idiopathic-vpc-distribution-of-foci-and-tips-of-ablation
#2
REVIEW
Jose C Pachon M Md PhD, Tasso J Lobo Md, Enrique I Pachon M Md, Tomas G Santillana P Md, Carlos Tc Pachon Md, Juan C Pachon M Md, Remy N Albornoz V Md, Juan C Zerpa A Md, Felipe A Ortencio Md
Idiopathic Ventricular Premature Contraction (VPC) is currently more routinely referred for electrophysiology evaluation. Usually it carries a good prognosis but, when symptomatic or suspected to produce ventricular dysfunction, will require treatment. Nowadays, RF ablation has great advantages over antiarrhythmic drugs. Classically the outflow tract (right or left), with the typical inferior axis with left (eventually right) bundle brunch block like ECG morphology, is considered the most frequent site of origin for idiopathic VPC, but with the widespread of EP procedures and advancement of technology making possible to map and ablate difficult locations, it is possible to see a growing and changing population referred for idiopathic VPC ablation, displaying that, almost any region of the heart may be source of this kind of arrhythmia that can be successfully treated...
April 2016: Journal of Atrial Fibrillation
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
#3
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/27899864/right-ventricle-mimics-right-atrium-at-first-glance-a-rare-case-of-congenital-right-sided-partial-pericardial-defect
#4
Meitzu Wang, Tien-Yu Chang, Wei-Hsian Yin, Yung-Nien Yang
Among heart irregularities, congenital pericardial defect is an unusual anomaly, and is typically left dominant. However, cases of right pericardial defect with heart herniation are extremely rare. This is a case of congenital right pericardial defect with herniation of the right ventricle free wall and right ventricular outflow tract. The patient is asymptomatic and refused further intervention but even indolent discomfort underscores the risks of iatrogenic injuries to the heart and sudden death caused by mechanical pathogenesis due to changes in anatomical positions of the cardiac structures...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27893455/patient-radiation-doses-in-paediatric-interventional-cardiology-procedures-a-review
#5
R W Harbron, S Dreuil, M-O Bernier, M S Pearce, I Thierry-Chef, C-L Chapple, H Baysson
A large number of investigations into the radiation doses from x-ray guided interventional cardiology procedures in children have been carried out in recent years. A review was conducted of these studies, gathering data on kerma area product (P KA), fluoroscopic screening time (FT), air kerma, and estimates of effective dose and organ doses. The majority of studies focus on P KA and FT with no estimation of dose to the patient. A greater than ten-fold variation in average P KA was found between different studies, even where data were stratified by patient age or weight...
November 28, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/27891672/cardiac-rhabdomyoma-in-an-infant-patient-presenting-with-right-ventricular-outflow-tract-obstruction
#6
Weiqiang Ruan, Junyang Han, Yabo Wang, Ke Lin
No abstract text is available yet for this article.
November 27, 2016: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/27888571/melody-valve-implantation-within-freestyle-stentless-porcine-aortic-heterograft
#7
James A Kuo, Ashlea A Feezel, Traci N Putnam, Deborah A Schutte
BACKGROUND: The Melody transcatheter pulmonary valve has been implanted successfully worldwide since its first implant in 2000. The vast majority of these valves have been implanted in pulmonary homografts. In our institution, the most common valve used for pulmonary valve replacement is the Medtronic Freestyle stentless porcine aortic heterograft. OBJECTIVE: We describe our experience implanting the Melody valve within the Freestyle heterograft. METHODS: Retrospective chart review was performed...
November 26, 2016: Catheterization and Cardiovascular Interventions
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
#8
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
#9
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/27878627/right-ventricular-dysfunction-as-an-echocardiographic-measure-of-acute-rejection-following-heart-transplantation-in-children
#10
Sanjeev Aggarwal, Jennifer Blake, Swati Sehgal
Noninvasive biomarkers of acute allograft rejection (AAR) following orthotopic heart transplantation (OHT) are needed. The aim of this study was to investigate the accuracy of echocardiographic (ECHO) right ventricular (RV) global functional and resistance indices in the detection of AAR. This retrospective chart review included children with biopsy-proven AAR (grade ≥ 2R cellular or CD4 + antibody-mediated rejection) following OHT and an ECHO within 12 h of the biopsy. ECHO measures: (a) ratio of systolic to diastolic duration (S/D), (b) RV myocardial performance index (MPI) and (c) tricuspid regurgitant gradient to RV outflow tract velocity time integral ratio (TRG/VTI), were derived at baseline, during AAR and at two follow-ups...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27876287/mid-term-outcomes-of-common-congenital-heart-defects-corrected-through-a-right-subaxillary-thoracotomy
#11
Guoying An, Hongyu Zhang, Shanguang Zheng, Weixin Wang, Liming Ma
OBJECTIVE: To evaluate the mid-term outcomes of the correction of various congenital heart defects through a right subaxillary thoracotomy. METHODS: Between June 2004 and April 2014, all eligible patients were those with a common congenital heart defect corrected via an approach through a right subaxillary thoracotomy. There were 836 patients (male 417, female 419; median age, 3.5 years; median weight 13.6kg) with ventricular septal defect (VSD) closure (523 patients), atrial septal defect (ASD) closure (235 patients), partial atrioventricular canal (PAVC) correction (55 patients), mild tetralogy of Fallot (TOF) (23 patients)...
February 17, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27871237/a-unique-association-of-arrhythmogenic-right-ventricular-dysplasia-and-acute-myocarditis-as-assessed-by-cardiac-mri-a-case-report
#12
Andrea Ponsiglione, Marta Puglia, Carmine Morisco, Luigi Barbuto, Antonio Rapacciuolo, Mario Santoro, Letizia Spinelli, Bruno Trimarco, Alberto Cuocolo, Massimo Imbriaco
BACKGROUND: Arrhythmogenic right ventricular dysplasia (ARVD), is a genetic disorder of the heart, which mainly involves the right ventricle. It is characterized by hypokinetic areas at the free wall of the right ventricle (RV) or both ventricles, where myocardium is replaced by fibrous or fatty tissue. ARVD is an important cause of ventricular arrhythmias in children and young adults. Although the transmission of the disease is based on hereditary, in young adults it may not show any symptoms...
November 21, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27866142/overstepping-anatomical-hurdles-when-opening-an-extremely-rudimentary-right-ventricular-outflow-tract-greater-safety-via-a-hybrid-strategy
#13
Rouven Kubicki, Johannes Kroll, Brigitte Stiller, Jochen Grohmann
No abstract text is available yet for this article.
November 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27864470/percutaneous-pulmonary-valve-implantation-in-the-native-right-ventricular-outflow-tract-using-a-29-mm-edwards-sapien-3-valve
#14
Patcharapong Suntharos, Lourdes R Prieto
Percutaneous pulmonary valve implantation is now an acceptable treatment option. The Edwards SAPIEN valve, intended for transcatheter aortic valve implantation, has been used in patients whose landing zone diameter is >22 to 24 mm which is not suitable for Melody valve. We report a patient in whom we successfully placed the latest generation, Edwards SAPIEN 3 (ES3) in the pulmonary position. However, because of the short covered portion of this valve, there was a significant paravalvular leak through the stent struts requiring implantation of a second ES3 valve...
November 18, 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27861261/lung-recruitment-improves-right-ventricular-performance-after-cardiopulmonary-bypass-a-randomised-controlled-trial
#15
Silvina Longo, Juan Siri, Cecilia Acosta, Alberto Palencia, Arturo Echegaray, Iván Chiotti, Andrés Parisi, Lila Ricci, Marcela Natal, Fernando Suarez-Sipmann, Gerardo Tusman
BACKGROUND: Atelectasis after cardiopulmonary bypass (CPB) can affect right ventricular (RV) performance by increasing its outflow impedance. OBJECTIVE: The aim of this study was to determine whether a lung recruitment manoeuvre improves RV function by re-aerating the lung after CPB. DESIGN: Randomised controlled study. SETTING: Single-institution study, community hospital, Córdoba, Argentina. PATIENTS: Forty anaesthetised patients with New York Heart Association class I or II, preoperative left ventricular ejection fraction at least 50% and Euroscore 6 or less scheduled for cardiac surgery with CPB...
November 16, 2016: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27859636/false-aneurysm-after-xenograft-implantation-for-right-ventricular-outflow-tract-reconstruction
#16
Rafik Margaryan, Luigi Arcieri, Vincenzo Poli, Bruno Murzi
No abstract text is available yet for this article.
November 16, 2016: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/27855055/-left-ventricular-synchrony-with-septum-stimulation-vs-septal-ventricular-outflow-tract-in-complete-atrioventricular-block
#17
Gustavo Rodríguez-Serrano, Susano Lara-Vaca, Texar Pereyra-Nobara, Enrique Bernal-Ruiz
BACKGROUND: Placing the right ventricular pacing electrode in different places than the apex is less deleterious to the ejection fraction and left ventricular synchrony. Currently it is not defined which non apical site is better alternative. The aim of this paper was to determine if there is a difference in systolic function and left ventricular synchrony with stimulation of medial septum or outflow tract of the right ventricle in patients with atrioventricular block and pacemaker device...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27853069/compression-of-the-right-ventricular-outflow-tract-due-to-straight-back-syndrome-clarified-by-low-dose-dual-source-computed-tomography
#18
Kohei Hasegawa, Tomofumi Takaya, Shumpei Mori, Tatsuro Ito, Sei Fujiwara, Tatsuya Nishii, Atsushi K Kono, Hiroyuki Shimoura, Hidekazu Tanaka, Ken-Ichi Hirata
A 23-year-old asymptomatic woman was referred to our hospital for further examination of a systolic ejection murmur with fixed splitting of the second heart sound auscultated at the third left sternal border. Initial echocardiography could not detect the cause. Subsequently performed low-dose computed tomography, however, ruled out the possibility of any congenital heart diseases, but revealed a markedly shortened anteroposterior diameter of the chest, which led us to a diagnosis of straight back syndrome. A vertically oriented "pancake" appearance of the heart, straight vertebral column, and compression of the right ventricular outflow tract were clearly demonstrated on the reconstructed images...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27842759/influence-of-apical-position-on-the-left-ventricular-outflow-tract-obstruction-in-congenitally-corrected-transposition
#19
Meng-Luen Lee, Ing-Sh Chiu
BACKGROUND: The right ventricle has a proclivity to wrap around the left ventricle outflow tract (LVOT) in congenitally corrected transposition (CCT) patients with apicocaval ipsilaterality, which may influence the outcome of the double switch operation (DSO). The goal of this study was to determine if the LVOT is compressed by the right ventricle in this setting. METHODS: A total of 103 patients with CCT were divided into four groups according to ventricular looping and apical position, including Group A (D-loop and levocardia), Group B (L-loop and dextrocardia), Group C (D-loop and dextrocardia), and Group D (L-loop and levocardia)...
November 10, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27834760/surgical-treatment-for-double-outlet-right-ventricle-with-pulmonary-outflow-tract-obstruction
#20
Qingyu Wu, Yongqiang Jin, Hongyin Li, Mingkui Zhang
BACKGROUND: Double outlet right ventricle (DORV) is a conotruncal anomaly that is a defining element of many types of complex congenital heart disease. Because of a big variety of pathology, there are still some controversies with respect to the definition, classification, and surgical treatment. We report our experience with surgical treatment for DORV (as defined by the "90% rule") with pulmonary outflow tract obstruction (POTO). METHODS: From July 2005 to July 2015, 90 patients underwent surgical treatment of DORV with POTO at the First Hospital of Tsinghua University...
November 2016: World Journal for Pediatric & Congenital Heart Surgery
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