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https://www.readbyqxmd.com/read/29129561/alcohol-septal-ablation-for-hypertrophic-obstructive-cardiomyopathy-a-16-year-australian-single-centre-experience
#1
Jason Nogic, Youlin Koh, Marek Bak, Robert P Gooley, Ian T Meredith, Liam M McCormick
BACKGROUND: Alcohol septal ablation (ASA), is a well-established treatment for symptomatic hypertrophic obstructive cardiomyopathy (HOCM). We report the acute, short and long-term clinical and echocardiographic outcomes of our experience in a single Australian centre over 16 years. METHODS: We retrospectively analysed consecutive patients presenting to our centre for ASA between March 2000 and July 2016. Local databases were interrogated along with direct patient or physician contact occurred where required...
October 13, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29121757/association-between-qrs-duration-on-prehospital-ecg-and-mortality-in-patients-with-suspected-stemi
#2
Rikke Hansen, Martin Frydland, Ole Kristian Møller-Helgestad, Matias Greve Lindholm, Lisette Okkels Jensen, Lene Holmvang, Hanne Berg Ravn, Jesper Kjærgaard, Christian Hassager, Jacob Eifer Møller
BACKGROUND: QRS duration has previously shown association with mortality in patients with acute myocardial infarction treated with thrombolytics, less is known in patients with suspected ST segment elevation myocardial infarction (STEMI) when assessing QRS duration on prehospital ECG. Thus, the objective was to investigate the prognostic effect of QRS duration on prehospital ECG and presence of classic left and right bundle branch block (LBBB/RBBB) for all-cause mortality in patients with suspected STEMI...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29064041/does-cardiac-resynchronization-therapy-benefit-patients-with-non-left-bundle-branch-block-prolonged-qrs-patterns
#3
REVIEW
Mark N Belkin, Gaurav A Upadhyay
PURPOSE OF REVIEW: We sought to assess the utility of CRT in patients with non-LBBB. RECENT FINDINGS: CRT has an established role as a device-based therapy for patients with HF with systolic dysfunction and intraventricular conduction disease, specifically LBBB. In modern practice, the use of CRT in non-LBBB patients remains controversial, with high rates of non-response for CRT in patients with RBBB, in particular. Recent studies have identified sub-populations of non-LBBB patients that respond to resynchronization, such as those with prolonged PR intervals (≥ 230 ms), with RBBB and concomitant left-sided delay and those with significant burden of right ventricular pacing...
October 24, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/29037423/unique-ecg-presentations-and-clinical-management-of-a-symptomatic-lqt2-female-carrying-a-novel-de-novo-kcnh2-mutation
#4
Chunlin Yin, Ping Zhang, Jing Yang, Li Zhang
A 26-year-old woman, 12 days in postpartum, developed recurrent syncope and cardiac arrest. Her ECG revealed QT-prolongation associated with LQT2-specific T-U wave patterns, T wave alternans, long QT-dependent torsade de pointes (TdP) and ventricular fibrillation (VF). She also had intermittent LBBB (80bpm) on alternate beats and RBBB at sinus tachycardia (113bpm). Family genotyping revealed a novel de novo missense mutation G604C of KCNH2. Propranolol slowed heart rate and further prolonged QT interval (610ms) that caused TdP recurrence...
August 17, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29021090/rbbb-tachycardia-with-north-west-axis-what-is-the-mechanism
#5
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
RBBB tachycardia with NW axis is considered to be VT unless proved otherwise. However underlying conduction system disease can produce electrocardiographic patterns suggestive of bundle branch block with extreme left axis which can cause difficulty in differentiating VT from SVT as in this case.
September 1, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28966313/analysis-of-morphological-characteristics-and-origins-of-idiopathic-premature-ventricular-contractions-under-a-12-lead-electrocardiogram-in-children-with-structurally-normal-hearts
#6
Jianbin Jiang, Yuee He, Huixian Qiu, Yuanhai Zhang, Maoping Chu, Yuechun Li, Qi Chen
Up to 40% of healthy children have premature ventricular complexes or contractions (PVCs) detected with 24-hour Holter monitoring. We aimed to investigate the morphological characteristics and origins of idiopathic PVCs under a 12-lead electrocardiogram in children with structurally normal hearts. All asymptomatic monomorphic PVC patients with structurally normal hearts under 18 years of age were included in this retrospective study. Characteristics of PVCs in lead V1 under a 12-lead electrocardiogram were classified as left bundle branch block (PVC-LBBB) or right bundle branch block (PVC-RBBB)...
October 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28963581/pacemaker-implantation-after-tavi-predictors-of-av-block-persistence
#7
Luise Gaede, Won-Keun Kim, Christoph Liebetrau, Oliver Dörr, Johannes Sperzel, Johannes Blumenstein, Alexander Berkowitsch, Thomas Walther, Christian Hamm, Albrecht Elsässer, Holger Nef, Helge Möllmann
AIMS: Approximately every fifth patient undergoing transcatheter aortic valve implantation (TAVI) requires a permanent pacemaker (PPM) after the procedure. The aim of this study was to analyse predictors of atrioventricular block III° (AVBIII) persistence with concurrent PPM dependency after TAVI. METHODS AND RESULTS: Between 2010 and 2015 a total of 1198 patients underwent TAVI at the Kerckhoff Heart and Thorax Center, Germany. After exclusion of patients with prior PPM (n = 173) 14...
September 29, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28938964/predictors-of-permanent-pacemaker-implantation-after-transfemoral-aortic-valve-implantation-with-the-lotus-valve
#8
Mirjam Keßler, Birgid Gonska, Julia Seeger, Wolfgang Rottbauer, Jochen Wöhrle
BACKGROUND: Permanent pacemaker implantation (PPMI) after transcatheter aortic valve implantation is of high clinical relevance, but PPMI rates differ widely between valve types. Although the Lotus valve can be repositioned, reported rates for PPMI are high. The predictors of PPMI after Lotus valve implantation have not been defined yet. METHODS: We analyzed the impact of preexisting conduction disturbances, depth of implantation, oversizing, and amount of calcification on PPMI in 216 patients with severe symptomatic aortic stenosis underdoing Lotus valve implantation...
October 2017: American Heart Journal
https://www.readbyqxmd.com/read/28899954/differentiating-the-qrs-morphology-of-posterior-fascicular-ventricular-tachycardia-from-right-bundle-branch-block-and-left-anterior-hemiblock-aberrancy
#9
MULTICENTER STUDY
Yoav Michowitz, Oholi Tovia-Brodie, Ishai Heusler, Avi Sabbag, Michael Rahkovich, Hezzy Shmueli, Aharon Glick, Bernard Belhassen
BACKGROUND: Left posterior fascicular ventricular tachycardia (LPF-VT) is frequently misdiagnosed as supraventricular tachycardia with aberrant right bundle branch block (RBBB) and left anterior hemiblock (LAHB). The purpose of the present study was to define the morphological ECG characteristics of LPF-VT and attempt to differentiate it from RBBB and LAHB aberrancy. METHODS AND RESULTS: A systematic Medline search was used to identify or locate ECG tracings from patients with LPF-VTs...
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28886927/suitability-of-cardiac-resynchronisation-therapy-in-patients-with-fontan-circulation-and-congenitally-corrected-transposition-of-the-great-arteries
#10
P Demetriades, A Bell, C Gubran, H Marshall, J de Bono, L Hudsmith
BACKGROUND: Cardiac resynchronisation therapy (CRT) is a well-recognised treatment in systolic heart failure. There is limited evidence in congenital patients with univentricular hearts or systemic right ventricles. In 2014 PACES/HRS published a consensus statement recommending CRT if ventricular ejection fraction (EF)≤35%, QRS duration≥150ms (with RBBB in systemic RV), NYHA II-IV and ventricular dilatation. The incidence of patients meeting these criteria in whom CRT is possible is not known...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28791747/ecg-morphology-of-premature-ventricular-contractions-predicts-the-presence-of-myocardial-fibrotic-substrate-on-cardiac-magnetic-resonance-imaging-in-patients-undergoing-ablation
#11
Sabrina Oebel, Borislav Dinov, Arash Arya, Sebastian Hilbert, Philipp Sommer, Andreas Bollmann, Gerhard Hindricks, Ingo Paetsch, Cosima Jahnke
BACKGROUND: The most likely origin of premature ventricular contractions (PVCs) may be deduced from surface electrocardiogram (ECG) analysis while planning an electrophysiological study (EPS). Apart from purely benign forms of increased ventricular ectopy, myocardial substrate (e.g., regional fibrosis) may be present in certain cases, which will significantly impact the ablation approach. Cardiac magnetic resonance (CMR) imaging can reliably identify fibrotic target lesions and, hence, may assist in adequate patient selection and procedural planning...
November 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28757765/pulseless-electrical-activity-in-acute-massive-pulmonary-embolism-during-thrombolytic-therapy
#12
Han-Hua Yu, Jing-Ren Jeng
We report a case of acute pulmonary embolism with hemodynamic instability diagnosed by a computed tomography pulmonary angiogram. The patient developed pulseless electrical activity during systemic thrombolytic therapy with recombinant tissue plasminogen activator. Successful return of spontaneous circulation was achieved after immediate cardiopulmonary resuscitation with chest compressions for 6 min. His electrocardiogram (ECG) on arrival in the emergency department displayed sinus tachycardia, an S wave in lead I, a Q wave in lead III, incomplete right bundle branch block (RBBB), T-wave inversion (TWI) in leads V1-V3, ST elevation in leads aVR and V1, and ST depression in leads I, II, III, aVF, and V4-V6...
January 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/28734885/clinical-impact-of-baseline-right-bundle-branch-block-in-patients-undergoing-transcatheter-aortic-valve-replacement
#13
Vincent Auffret, John G Webb, Hélène Eltchaninoff, Antonio J Muñoz-García, Dominique Himbert, Corrado Tamburino, Luis Nombela-Franco, Fabian Nietlispach, César Morís, Marc Ruel, Antonio E Dager, Vicenç Serra, Asim N Cheema, Ignacio J Amat-Santos, Fábio Sandoli de Brito, Pedro Alves Lemos, Alexandre Abizaid, Rogério Sarmento-Leite, Eric Dumont, Marco Barbanti, Eric Durand, Juan H Alonso Briales, Alec Vahanian, Claire Bouleti, Sebastiano Immè, Francesco Maisano, Raquel Del Valle, Luis Miguel Benitez, Bruno García Del Blanco, Rishi Puri, François Philippon, Marina Urena, Josep Rodés-Cabau
OBJECTIVES: This study sought to assess the influence of baseline right bundle branch block (RBBB) on all-cause and cardiovascular mortality as well as sudden cardiac death (SCD) among patients undergoing transcatheter aortic valve replacement (TAVR). BACKGROUND: Few data exist regarding the late clinical impact of pre-existing RBBB in TAVR recipients. METHODS: A total of 3,527 patients (mean age 82 ± 8 years, 50.1% men) were evaluated according to the presence of RBBB on baseline electrocardiography...
August 14, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28707442/paravalvular-leak-versus-need-for-permanent-pacemaker-after-tavr-sailing-between-scylla-and-charybdis
#14
EDITORIAL
Mehmet Cilingiroglu, Konstantinos Marmagkiolis
Absence or minimization of PVL after TAVR and its potential association with higher rates of PPM placement has been the Achilles' heel of TAVR procedures. Pre-existing RBBB and depth of implantation are independent predictors of PPM need after Lotus valve implantation. Optimization of device design, increased operator experience, and focus on accurate device placement seem to result in decreased need for PPM after Lotus valve implantation.
July 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28666538/the-relevance-of-looking-for-right-bundle-branch-block-in-catheter-ablation-of-ebstein-s-anomaly
#15
Laila Gonzalez-Melchor, Santiago Nava, Pedro Iturralde, Manlio F Marquez
INTRODUCTION: Ebstein's anomaly is the most commonly occurring congenital defect associated with the Wolff-Parkinson-White syndrome. In patients with Ebstein's anomaly and supraventricular tachycardia, the absence of right bundle branch block (RBBB) in sinus rhythm is a highly sensitive and specific indicator of the presence of an ipsilateral accessory AP. CASE: We present an electrophysiology case of a patient with Ebstein's anomaly and 3 ipsilateral accessory pathways...
June 17, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28647466/incidence-indications-and-predicting-factors-of-permanent-pacemaker-implantation-after-transcatheter-aortic-valve-implantation-a-retrospective-study
#16
Mathieu Becker, Hugues Blangy, Thierry Folliguet, Thibault Villemin, Luc Freysz, Amandine Luc, Pablo Maureira, Batric Popovic, Arnaud Olivier, Nicolas Sadoul
BACKGROUND: As the number of transcatheter aortic valve implantation (TAVI) procedures is constantly increasing, it is important to consider common complications, such as pacemaker (PM) implantation, and their specific risk factors. AIMS: Echocardiographic, computed tomography and electrocardiographic data were analysed to determine the predicting factors, if any, associated with PM implantation. METHODS: This retrospective study included patients referred to Nancy University Hospital for a TAVI procedure from January 2013 to December 2015...
October 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28631207/qrs-width-as-a-predictor-of-right-ventricular-remodeling-after-percutaneous-pulmonary-valve-implantation
#17
C Paech, I Dähnert, F T Riede, R Wagner, T Kister, K Nieschke, F Wagner, R A Gebauer
Recent data showed a right ventricular dyssynchrony in patients with tetralogy of Fallot (TOF). Percutaneous pulmonary valve implantation (PPVI) has become an important procedure to treat a pulmonary stenosis and/or regurgitation of the right ventricular outflow tract in these patients. Despite providing good results, there is still a considerable number of nonresponders to PPVI. The authors speculated that electrical dysfunction of the right ventricle plays an underestimated role in the outcome of patients after PPVI...
August 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28598506/atrial-overdrive-pacing-during-wide-qrs-tachycardia-with-rbbb-morphology-what-is-the-mechanism
#18
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Suji Karunakaran, Priya Giridhara, Abhilash Sreevilasam Pushpangadhan, Ajitkumar Valaparambil
No abstract text is available yet for this article.
August 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28571189/evaluation-of-ecg-abnormalities-in-patients-with-asymptomatic-type-2-diabetes-mellitus
#19
Sahil Gupta, Rajeev Kumar Gupta, Malini Kulshrestha, Rajib Ratna Chaudhary
INTRODUCTION: Diabetes Mellitus (DM) is the most common chronic disease. DM is considered a Cardiovascular Disease (CVD) risk equivalent. Its macrovascular complications are associated with two-fold increased risk of premature atherosclerotic CVD. Most of the diabetics with cardiovascular involvement are asymptomatic. Electro Cardio Graph (ECG) abnormalities are found to be predictors of silent ischaemia in asymptomatic persons. An abnormal ECG response is associated with statistically significant high risk for cardiac mortality and morbidity...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28506942/insights-into-the-need-for-permanent-pacemaker-following-implantation-of-the-repositionable-lotus%C3%A2-valve-for-the-transcatheter-aortic-valve-replacement-in-250-patients-results-from-the-reprise-ii-trial-with-extended-cohort
#20
Nicolas Dumonteil, Ian T Meredith, Daniel J Blackman, Didier Tchétché, David Hildick-Smith, Mark S Spence, Darren L Walters, Jan Harnek, Stephen G Worthley, Gilles Rioufol, Thierry Lefèvre, Thomas Modine, Nicolas Van Mieghem, Vicki M Houle, Dominic J Allocco, Keith D Dawkins
AIMS: This analysis evaluated the incidence and predictors of the need for permanent pacemaker (PPM) implantation following implantation of the repositionable and fully retrievable Lotus Aortic Valve Replacement System. METHODS & RESULTS: The prospective, single arm, multicentre REPRISE II study with extended cohort enrolled 250 symptomatic, high surgical risk patients with severe aortic stenosis for transfemoral transcatheter aortic valve implantation (TAVI) with a 23mm or 27mm Lotus Valve...
May 16, 2017: EuroIntervention
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