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https://www.readbyqxmd.com/read/29314335/late-results-of-right-ventricular-outflow-tract-reconstruction-with-a-bicuspid-expanded-polytetrafluoroethylene-valved-conduit
#1
Kwang Ho Choi, Si Chan Sung, Hyungtae Kim, Hyoung Doo Lee, Geena Kim, Hoon Ko
BACKGROUND AND AIM TO READ: We report the results of a bicuspid expanded polytetrafluoroethylene (ePTFE) valved conduit used for right ventricular outflow tract reconstruction (RVOTR). METHODS: Between November 2005 and February 2009, 12 conduits were used for RVOTR. The mean age and weight of patients were 43.5 ± 46.4 months and 13.4 ± 8.6 kg. The main diagnosis was tetralogy of Fallot with pulmonary atresia in eight patients. The most common conduit size was 18 mm...
January 4, 2018: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29310365/ebv-lymphoproliferative-associated-disease-and-primary-cardiac-t-cell-lymphoma-in-a-stk4-deficient-patient-a-case-report
#2
Roya Sherkat, Mohammad Reza Sabri, Bahar Dehghan, Hamid Bigdelian, Nahid Reisi, Nooshin Afsharmoghadam, Hamid Rahimi, Narges Rahmanian, Cristoph Klein
RATIONALE: Primary cardiac lymphoma (PLC) is an extremely uncommon malignancy. PCL is more common in secondary immunodeficient patients. In this report, we describe a unique case of PLC who had been diagnosed as a STK4 deficient patient. This case is the first Primary immunodeficiency (PID) patient developing PCL in the world. PATIENT CONCERNS: An eleven-year-old girl, a known case of PID, was referred to the pediatric cardiology department because of chest pain and dyspnea...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29305559/impact-of-surgery-on-presence-and-dimensions-of-anatomical-isthmuses-in-tetralogy-of-fallot
#3
Gijsbert F L Kapel, Sergio Laranjo, Nico A Blom, Mark G Hazekamp, Martin J Schalij, Margot M Bartelings, Monique R M Jongbloed, Katja Zeppenfeld
OBJECTIVE: In tetralogy of Fallot (TOF), the dominant ventricular tachycardia substrates are slow-conducting anatomical isthmuses. Surgical correction has evolved, which might have influenced isthmus presence and dimensions. METHODS: One hundred and forty-two postmortem TOF specimens (84/58 corrected/uncorrected) were studied for isthmus presence. Isthmus 1 is located between the tricuspid annulus and right ventricular (RV) outflow tract (RVOT) patch/RV incision, isthmus 2 between RVOT patch/RV incision and pulmonary valve, isthmus 3 between pulmonary valve and ventricular septal defect (patch), isthmus 4 between ventricular septal defect (patch) and tricuspid annulus...
January 5, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29302948/the-hancock%C3%A2-valved-conduit-for-right-ventricular-outflow-tract-reconstruction-in-sheep-for-assessing-new-devices
#4
John P Carney, Lindsey M Zhang, Jeffrey J Larson, Matthew T Lahti, Nicholas A Robinson, Agustin P Dalmasso, Richard W Bianco
BACKGROUND: Xenograft conduits have been used successfully to repair congenital heart defects, but are prone to failure over time. Hence, in order to improve patient outcomes, better xenografts are being developed. When evaluating a conduit's performance and safety it must first be compared against a clinically available control in a large animal model. The study aim was to evaluate a clinically available xenograft conduit used in right ventricular outflow tract (RVOT) reconstruction in a sheep model...
July 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29280541/ventricular-arrhythmias-immediately-following-transcatheter-pulmonary-valve-implantation-a-cause-for-concern
#5
M Abigail Simmons, Robert W Elder, Veronika Shabanova, William Hellenbrand, Jeremy Asnes
BACKGROUND: Transcatheter pulmonary valve implantation (TPVI) has revolutionized the care of patients with congenital disorders of the right ventricular outflow tract (RVOT) and is increasingly being used in patients with native outflow tracts. This is the first study to specifically report the occurrence of ventricular arrhythmias in the immediate post-TPVI period. METHODS AND RESULTS: Medical records of all adult and pediatric patients who underwent TPVI at our institution between May 1, 2011 and March 1, 2016, were reviewed for the presence of clinically significant ventricular arrhythmias occurring within 30 days of TPVI...
December 27, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29280039/left-ventricular-outflow-tract-arrhythmias-with-divergent-qrs-morphology-mapping-of-different-exits-and-ablation-strategy
#6
Christopher Reithmann, Michael Fiek
BACKGROUND: Ventricular arrhythmias (VAs) from the left ventricular outflow tract (LVOT) can have multiple exits exhibiting divergent ECG features. METHODS: In a series of 131 patients with VAs with LVOT origin, 10 patients presented with divergent QRS morphologies. Multisite endo- and epicardial mapping of different exit sites was performed. RESULTS: The earliest ventricular activity of 23 LVOT VAs in 10 patients was detected in the endocardium of the LV in 7 patients, the aortic sinuses of Valsalva (SoV) in 3 patients, the distal coronary sinus in 6 patients, the anterior interventricular vein in 3 patients, and the posterior right ventricular outflow tract (RVOT) in 4 patients...
December 27, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29277931/percutaneous-pulmonary-valve-implantation-in-grown-up-congenital-heart-disease-patients-insights-from-the-zurich-experience
#7
Luca Oechslin, Roberto Corti, Matthias Greutmann, Oliver Kretschmar, Oliver Gaemperli
OBJECTIVES: The aim of the study was to assess indications, procedural success, complications, echocardiographic, and clinical outcomes of percutaneous pulmonary valve implantation (PPVI) in adult patients with congenital heart disease (CHD). BACKGROUND: PPVI offers a non-surgical treatment option for failing prosthetic conduits in pulmonary position. However, efficacy and clinical outcomes after PPVI are still underreported. METHODS: From January 2008 to March 2016, 25 adult CHD patients with right ventricular outflow tract (RVOT) stenosis and/or pulmonary regurgitation underwent PPVI in our institution...
December 25, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29277286/the-relationship-between-the-s-wave-in-lead-1-and-recurrence-of-rvot-pvc-ablation
#8
Hacı Murat Güneş, Gültekin Günhan Demir, Oğuz Karaca, Filiz Kızılırmak Yılmaz, Ersin İbişoğlu, Tayyar Gökdeniz, Mehmet Onur Omaygenç, Ekrem Güler, Gamze Babur Güler, Ümeyir Savur, Beytullah Çakal, İrfan Barutçu, Fethi Kılıçaslan
BACKGROUND: Radiofrequency catheter ablation (CA) is a common non-pharmacological treatment option for ventricular premature contractions (PVCs) originating from right ventricular outflow tract (RVOT). In this study, we aimed to investigate the relationship between recurrence after CA for RVOT-PVC and S-wave in lead 1 that was shown to be associated with RVOT depolarization. METHODOLOGY: A total of 104 patients who were referred to our clinic for CA for idiopathic RVOT-PVC between 2012 and 2015years were enrolled...
December 14, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29273239/percutaneous-pulmonary-valve-implantation-in-small-conduits-a-multicenter-experience
#9
Sebastien Hascoet, José Diogo Martins, Haysam Baho, Saule Kadirova, Fatima Pinto, Florent Paoli, Fadi Bitar, Abdelfatah Abu Haweleh, Anselm Uebing, Philippe Acar, Olivier Ghez, Alain Fraisse
BACKGROUND: Guidelines allow percutaneous pulmonary valve implantation (PPVI) in conduits above 16mm diameter. Balloon dilatation of a conduit to a diameter>110% of the original implant size is also not recommended. We analyzed patients undergoing PPVI in such conditions. METHODS AND RESULTS: Nine patients (May 2008-July 2016) from 8 institutions underwent PPVI in conduits <16mm diameter. Five patients with 16-18mm conduit diameter underwent PPVI after over-expansion of the conduit>110%...
December 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29258733/percutaneous-radiofrequency-ablation-of-obstructive-right-ventricular-giant-myxoma
#10
Min-Juan Zheng, Jian Yang, Guang-Bin He, Xiao-Dong Zhou, Li-Wen Liu
Surgical resection is the conventional therapeutic action for patients with an obstructive cardiac tumor. However, for patients in poor clinical condition, cardiac surgery can be risky. We report on the successful percutaneous radiofrequency (RF) ablation treatment of a right ventricular giant myxoma in a 70-year-old female with right ventricular outflow tract (RVOT) and pulmonary artery stenosis, who was unable to tolerate surgery. The treatment was effective in relieving RVOT stenosis and improving symptoms...
December 16, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29233764/annulus-sparing-tetralogy-of-fallot-repair-low-risk-and-benefits-to-right-ventricular-geometry
#11
Edward Hickey, Eric Pham-Hung, Fredrick Halvorsen, Michael Gritti, An Duong, Travis Wilder, Christopher Caldarone, Andrew Redington, Glen Van Arsdell
BACKGROUND: Annulus-sparing (AS) repair of tetralogy of Fallot (TOF) carries a potential increased risk reoperation for re-stenosis and unproven benefits on right ventricular (RV) geometry. METHODS: Primary TOF repairs (N=434) between 2000 and 2012 were studied using risk-adjusted parametric techniques. Progression of cardiac dimensions were analyzed using repeated measures regression using reports of all 2,103 echocardiograms undertaken throughout the study period, to maximum follow-up 13...
December 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29226891/the-relationship-between-right-ventricular-outflow-tract-fractional-shortening-and-pulmonary-embolism-severity-index-in-acute-pulmonary-embolism
#12
Ekrem Şahan, Murat Karamanlıoğlu, Suzan Şahan, Murat Gül, Ahmet Korkmaz, Omaç Tüfekçioğlu
OBJECTIVE: Right ventricular (RV) functions are clinically important in acute pulmonary embolism (APE). Measurement of systolic function of the right ventricular outflow tract (RVOT) with echocardiography is a simple method to evaluate RV function. The aim of this study was to determine the relationship between RVOT systolic function and the Pulmonary Embolism Severity Index (PESI). METHODS: A total of 151 patients diagnosed with APE by pulmonary computed tomography angiography or ventilation/perfusion scintigraphy were included...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29226502/s-r-difference-in-v1-v2-is-a-novel-criterion-for-differentiating-the-left-from-right-ventricular-outflow-tract-arrhythmias
#13
Onur Kaypakli, Hasan Koca, Durmus Yıldıray Sahin, Fadime Karataş, Suleyman Ozbicer, Mevlüt Koç
AIM: The correct estimation of the VA origin as RVOT or LVOT results in reduced ablation duration reduced radiation exposure and decreased number of vascular access. In our study, we aimed to detect the predictive value of S-R difference in V1-V2 for differentiating the left from right ventricular outflow tract arrhythmias. METHODS: We included 123 patients with symptomatic frequent premature ventricular outflow tract contractions who underwent successful catheter ablation (70 male, 53 female; mean age 46...
December 10, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29193671/percutaneous-transcatheter-pulmonary-valve-replacement-in-children-weighing-less-than-20-kg
#14
Mary Hunt Martin, Shabana Shahanavaz, Lynn F Peng, Jeremy D Asnes, Michelle Riley, William E Hellenbrand, David T Balzer, Robert G Gray, Doff B McElhinney
BACKGROUND: Since FDA approval of the Melody valve, transcatheter pulmonary valve replacement (TPVR) has been offered to an expanding population. Limited data exist regarding the safety and feasibility of TPVR in smaller patients. METHODS: All patients weighing <20 kg who underwent catheterization for percutaneous TPVR at four centers were reviewed. RESULTS: Of the 51 patients reviewed, 43 (84%) had successful valve implantation and 8 (16%) were found not to be candidates due to access veins too small (n = 3), coronary artery/aortic root compression (n = 3), and RVOT too large (n = 2)...
November 29, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29181862/perforation-and-right-ventricular-outflow-tract-stenting-alternative-palliation-for-infants-with-pulmonary-atresia-ventricular-septal-defect
#15
David Aurigemma, John W Moore, Gabrielle Vaughn, Nasser Moiduddin, Howaida G El-Said
BACKGROUND: Right ventricular outflow tract (RVOT) stents have been used as palliation in patients with severe tetralogy of Fallot (TOF). Radiofrequency perforation of the RVOT has also been described in patients with pulmonary atresia (PA)/ventricular septal defect (VSD). However, RVOT stenting in conjunction with radiofrequency perforation as a means for establishing reliable pulmonary blood flow in patients with PA/VSD has not previously been reported. OBJECTIVES: Our aim is to report our experience with using perforation of plate-like pulmonary valve atresia combined with stenting of RVOT as an alternative and equally efficacious intervention for infants with PA/VSD, as compared to a surgical pulmonary artery shunt (SPS)...
November 27, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29174256/mid-term-results-of-correction-of-tetralogy-of-fallot-with-absent-pulmonary-valve
#16
Sachin Talwar, Aabha Divya, Shiv Kumar Choudhary, Saurabh Kumar Gupta, Sivasubramanian Ramakriahnan, Shyam Sunder Kothari, Rajnish Juneja, Anita Saxena, Balram Airan
BACKGROUND: Tetralogy of Fallot and absent pulmonary valve (TOF/APV) is associated with significant pulmonary artery dilatation and airway compression. METHODS: We performed a retrospective review of 73 consecutive patients who underwent repair for TOF/APV between January 2005-August 2015. Mean age was 6.4±5.6years (28days-22years). The right ventricular outflow tract (RVOT) was reconstructed using varied techniques. Freedom from RVOT gradients and re-operation was studied...
November 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/29148067/should-theophylline-be-added-to-the-j-wave-syndrome-therapeutic-armamentarium
#17
EDITORIAL
Charles Antzelevitch, Sami Viskin
The substrate for both early repolarization syndrome (ERS) and Brugada syndrome (BrS), the so-called J wave syndromes, has been shown to develop as a consequence of genetic variants causing a loss of function of inward currents such sodium (INa ) and calcium (ICa ) channel currents or a gain of function in outward currents such as the transient outward current (Ito ). These changes in ion channel function result in an outward shift of the balance of currents active during the early phases of the epicardial action potential in the right ventricular outflow tract (RVOT) of the heart in the case BrS and in the inferior left ventricle in the case of ERS...
November 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29145303/epicardial-radiofrequency-catheter-ablation-of-brugada-syndrome-with-electrical-storm-during-ventricular-fibrillation-a-case-report
#18
Shufen Jiang, Xiaomeng Yin, Chang Dong, Yunlong Xia, Jinqiu Liu
RATIONALE: Brugada syndrome (BrS) is characterized by ST segment elevation at the J point ≥2 mm in the right precordial electrocardiogram (ECG) leads, in the absence of structural heart disease, electrolyte disturbances, or ischemia. It is a well-described cause of sudden death in young patients, especially in the age of between 30 and 40 years old. Here, we reported an unusual case of electrical storm (ES) of ventricular fibrillation (VF) caused by BrS with complete right bundle-branch block (CRBBB) in a 75-year-old male patient...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29119274/quantification-of-pulmonary-regurgitation-and-prediction-of-pulmonary-valve-replacement-by-echocardiography-in-patients-with-congenital-heart-defects-in-comparison-to-cardiac-magnetic-resonance-imaging
#19
Claudia Dellas, Laura Kammerer, Verena Gravenhorst, Joachim Lotz, Thomas Paul, Michael Steinmetz
Pulmonary regurgitation (PR) is common in patients with congenital heart defects (CHD) and contributes to morbidity and mortality in the long-term. We investigated in this retrospective analysis whether readily accessible echocardiographic parameters are useful for quantification of PR and for predicting pulmonary valve replacement (PVR) in comparison to the gold-standard phase contrast (PC) flow measurements from cardiovascular magnetic resonance (CMR). Continuous wave (CW) Doppler and colour flow images in echocardiograms from 53 patients with CHD were analysed...
November 8, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29071756/novel-electrophysiological-criteria-for-septal-ventricular-outflow-tract-tachycardias-requiring-a-sequential-bilateral-ablation
#20
Chin-Yu Lin, Fa-Po Chung, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Jo-Nan Liao, Ta-Chuan Tuan, Tze-Fan Chao, Yao-Ting Chang, Yun-Yu Chen, Abigail Louise D Te, Shinya Yamada, Ling Kuo, Jennifer Jeanne B Vicera, Ting-Yung Chang, Hoang Quang Minh, Simon Salim, Ting-Chung Huang, Shih-Ann Chen
BACKGROUND: Septal ventricular outflow tract ventricular arrhythmias (OT-VAs) are defined as septal origin VAs from the right ventricular or left ventricular OT. Patients with septal OT-VAs may require a sequential bilateral OT ablation. This study aimed to evaluate the electrophysiological characteristics and ablation outcome in patients with septal OT-VAs. METHODS: We retrospectively analyzed the electrocardiography and electrophysiological parameters in 96 patients (mean age 49 ± 15 years, 49 male) undergoing bilateral activation mapping before catheter ablation of idiopathic septal OT-VAs...
October 26, 2017: Journal of Cardiovascular Electrophysiology
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