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https://www.readbyqxmd.com/read/28932359/coronary-angiography-findings-in-cardiac-arrest-patients-with-non-diagnostic-post-resuscitation-electrocardiogram-a-comparison-of-shockable-and-non-shockable-initial-rhythms
#1
Pedro Martínez-Losas, Pablo Salinas, Carlos Ferrera, María Teresa Nogales-Romo, Francisco Noriega, María Del Trigo, Iván Javier Núñez-Gil, Luis Nombela-Franco, Nieves Gonzalo, Pilar Jiménez-Quevedo, Javier Escaned, Antonio Fernández-Ortiz, Carlos Macaya, Ana Viana-Tejedor
AIM: To investigate the impact of coronary artery disease in a cohort of patients resuscitated from cardiac arrest with non-diagnostic electrocardiogram. METHODS: From March 2004 to February 2016, 203 consecutive patients resuscitated from in or out-of-hospital sudden cardiac arrest and non-diagnostic post-resuscitation electrocardiogram (defined as ST segment elevation or pre-sumably new left bundle branch block) who underwent invasive coronary angiogram during hospitalization were included...
August 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28928045/the-electrocardiographic-triangular-qrs-st-t-waveform-pattern-in-patients-with-st-segment-elevation-myocardial-infarction-incidence-pathophysiology-and-clinical-implications
#2
Alberto Cipriani, Gianpiero D'Amico, Giulia Brunello, Martina Perazzolo Marra, Federico Migliore, Luisa Cacciavillani, Giuseppe Tarantini, Barbara Bauce, Sabino Iliceto, Domenico Corrado, Alessandro Zorzi
BACKGROUND: A specific ECG pattern of presentation of ST-segment elevation acute myocardial infarction (STEMI), characterized by "triangular QRS-ST-T waveform" (TW), has been associated with poor in-hospital prognosis but longitudinal data on its incidence and clinical impact are lacking. We prospectively evaluated the incidence and prognostic meaning of the TW pattern in a cohort of consecutive STEMI patients. METHODS: All STEMI patients who presented within 12h of symptoms onset and showed no complete bundle branch block or paced ventricular rhythm were included...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28919216/transient-left-septal-and-anterior-fascicular-block-associated-with-type-1-electrocardiographic-brugada-pattern
#3
Andrés Ricardo Pérez-Riera, Raimundo Barbosa-Barros, Marianne Penachini da Costa de Rezende Barbosa, Rodrigo Daminello-Raimundo, Luiz Carlos de Abreu
The left septal fascicular block (LSFB) or blockage of the middle fibers of the left bundle branch is probably caused mainly by - in the developed world - the proximal obstruction of the left anterior descending artery (LAD) before its first anterior septal perforator branch (S1). The association of transient LSFB and left anterior fascicular block (LAFB) - left bifascicular block - and the electrocardiographic type 1 Brugada pattern (BrP) has not been described in the literature yet.
July 25, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28913501/acute-poisoning-due-to-ingestion-of-datura-stramonium-a-case-report
#4
Sebastian Daniel Trancă, Robert Szabo, Mihaela Cociş
Datura stramonium (DS) is a widespread annual plant, containing atropine, hyoscyamine, and scopolamine, which can produce poisoning with a severe anticholinergic syndrome. Teenagers ingest the roots, seeds or the entire plant to obtain its hallucinogenic and euphoric effects. We presented the case of a 22 year old male who was admitted to the Emergency Room in a coma after consuming Datura stramonium, 2 hours earlier. The patient presented with fever, tachycardia with right bundle branch block, and urinary retention...
April 2017: Rom J Anaesth Intensive Care
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
#5
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/28894589/automated-detection-of-heart-ailments-from-12-lead-ecg-using-complex-wavelet-sub-band-bi-spectrum-features
#6
Rajesh Kumar Tripathy, Samarendra Dandapat
The complex wavelet sub-band bi-spectrum (CWSB) features are proposed for detection and classification of myocardial infarction (MI), heart muscle disease (HMD) and bundle branch block (BBB) from 12-lead ECG. The dual tree CW transform of 12-lead ECG produces CW coefficients at different sub-bands. The higher-order CW analysis is used for evaluation of CWSB. The mean of the absolute value of CWSB, and the number of negative phase angle and the number of positive phase angle features from the phase of CWSB of 12-lead ECG are evaluated...
April 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/28893961/conduction-disturbances-after-transcatheter-aortic-valve-replacement-current-status-and-future-perspectives
#7
REVIEW
Vincent Auffret, Rishi Puri, Marina Urena, Chekrallah Chamandi, Tania Rodriguez-Gabella, François Philippon, Josep Rodés-Cabau
Transcatheter aortic valve replacement (TAVR) has become a well-accepted option for treating patients with aortic stenosis at intermediate to high or prohibitive surgical risk. TAVR-related conduction disturbances, mainly new-onset left bundle-branch block and advanced atrioventricular block requiring permanent pacemaker implantation, remain the most common complication of this procedure. Furthermore, improvements in TAVR technology, akin to the increasing experience of operators/centers, have translated to a major reduction in periprocedural complications, yet the incidence of conduction disturbances has remained relatively high, with perhaps an increasing trend over time...
September 12, 2017: Circulation
https://www.readbyqxmd.com/read/28884873/impact-of-premature-activation-of-the-right-ventricle-with-programmed-stimulation-in-brugada-syndrome
#8
Koji Nakagawa, Satoshi Nagase, Hiroshi Morita, Tadashi Wada, Masamichi Tanaka, Masato Murakami, Atsuyuki Watanabe, Nobuhiro Nishii, Kazufumi Nakamura, Kengo F Kusano, Hiroshi Ito, Tohru Ohe
BACKGROUND: In Brugada syndrome (BrS), it has been reported that delayed activation in the RV is related to the development of type-1 ECG which is more critical than type-2. On the other hand, the coexistence of complete right bundle-branch block (CRBBB), which also causes delayed activation in the RV, sometimes makes typical BrS ECG misleading. We hypothesized that premature stimulation of the RV can unmask the influence of delayed activation in the RV and convert the morphology of ECG in BrS patients...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28877886/pulmonary-right-ventricular-resynchronization-in-congenital-heart-disease-acute-improvement-in-right-ventricular-mechanics-and-contraction-efficiency
#9
Jan Janoušek, Jan Kovanda, Miroslav Ložek, Viktor Tomek, Pavel Vojtovič, Roman Gebauer, Peter Kubuš, Miroslav Krejčíř, Joost Lumens, Tammo Delhaas, Frits Prinzen
BACKGROUND: Electromechanical discoordination may contribute to long-term pulmonary right ventricular (RV) dysfunction in patients after surgery for congenital heart disease. We sought to evaluate changes in RV function after temporary RV cardiac resynchronization therapy. METHODS AND RESULTS: Twenty-five patients aged median 12.0 years after repair of tetralogy of Fallot and similar lesions were studied echocardiographically (n=23) and by cardiac catheterization (n=5) after primary repair (n=4) or after surgical RV revalvulation for significant pulmonary regurgitation (n=21)...
September 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28870877/very-low-pacemaker-rate-following-acurate-neo-transcatheter-heart-valve-implantation
#10
Stefan Toggweiler, Henrik Nissen, Brynjolfur Mogensen, Florim Cuculi, Christian Fallesen, Karsten Tange Veien, Miriam Brinkert, Richard Kobza, Andreas Rück
AIMS: Investigate if minimizing trauma to the aortic annulus and left ventricular outflow tract reduces the occurrence of new conduction disorders and need for permanent pacemakers. METHODS AND RESULTS: A total of 175 patients (58% women, mean age 83 ± 6 years) underwent transfemoral TAVI with the Boston Scientific ACURATE neo at three centers in Europe. Prosthesis size selection was based on perimeter derived annular diameter. Predilatation was performed in all with a balloon 1...
September 5, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28868030/association-of-posterior-reversible-encephalopathy-syndrome-and-transient-apical-ballooning-syndrome-takotsubo-first-case-report-of-a-man-and-review-of-the-literature
#11
Stephan Grimaldi, Emilie Doche, Caroline Rey, Nadia Laksiri, Salah Boussen, Jacques Quilici, Emmanuelle Robinet, Fabien Devemy, Jean Pelletier
INTRODUCTION: An association of posterior reversible encephalopathy syndrome (PRES) and takotsubo is rare. We present the first case of a male patient. CASE REPORT: A 69-year-old man presented to the hospital in a persistent comatose state following a generalized tonic-clonic seizure with high blood pressure. The electrocardiogram revealed transient left bundle branch block. Troponin and BNP were elevated. Cardiac ultrasound showed large apical akinesia with altered left ventricular ejection fraction, and the left ventriculogram showed characteristic regional wall motion abnormalities involving the mid and apical segments...
May 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28845004/-application-of-perimembranous-ventricular-septal-defects-closure-solely-by-femoral-vein-approach-under-transesophageal-echocardiography-guidance
#12
Haisong Bu, Lei Gao, Weizhi Zhang, Qin Wu, Wancun Jin, Mi Tang, Tianli Zhao
To investigate the feasibility and safety of perimembranous ventricular septal defects (PmVSD) closure solely by femoral vein approach under transesophageal echocardiography (TEE) guidance.
 Methods: From January 1, 2014 to May 31, 2016, 26 patients with PmVSD in Second Xiangya Hospital were selected, with age at 3.2-6.0 (4.3±0.7) years old and body weight at 15.0-19.5 (16.7±1.4) kg. The diameter of VSD was 3.5-4.8 (4.1±0.3) mm. All patients were treated by percutaneous PmVSD closure solely by femoral vein approach under TEE guidance...
July 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28844528/association-between-implantation-depth-assessed-by-computed-tomography-and-new-onset-conduction-disturbances-after-transcatheter-aortic-valve-implantation
#13
João Gonçalves Almeida, Sara Moura Ferreira, Paulo Fonseca, Tiago Dias, Cláudio Guerreiro, Ana Raquel Barbosa, Pedro Teixeira, Mónica Carvalho, Wilson Ferreira, Nuno Dias Ferreira, Marco Oliveira, Helena Gonçalves, Pedro Braga, José Ribeiro, João Primo, Vasco Gama Ribeiro
BACKGROUND: Transcatheter aortic valve replacement (TAVR) is often associated with intraventricular conduction disturbances. We aimed to determine the association between implantation depth assessed by multidetector computed tomography (MDCT) and new-onset conduction abnormalities after TAVR. METHODS: Retrospective single-center study including patients consecutively submitted to TAVR, between August/2007 and October/2016, who underwent routine MDCT 3 months after the procedure...
August 18, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28840315/right-bundle-branch-block-and-anterior-wall-st-elevation-myocardial-infarction
#14
Monica Trofin, Carsten W Israel, S Serge Barold
We report the case of an acute anterior wall ST elevation myocardial infarction with new left anterior fascicular block and pre-existing right bundle branch block. Due to a wide right bundle branch block, no ST segment elevation was visible in lead V1. The left anterior fascicular block was caused by proximal occlusion of the left artery descending and disappeared after acute revascularization. However, also the R' of the right bundle branch block became significantly shorter after revascularization, dismanteling a minor ST segment elevation...
August 24, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28838551/general-approach-to-a-wide-qrs-complex
#15
REVIEW
Roberto De Ponti, Giuseppe Bagliani, Luigi Padeletti, Andrea Natale
Wide QRS complex is present when the normal activation pattern is modified by various mechanisms and clinical conditions. Correct interpretation is crucial for appropriate decision making. When approaching an electrocardiogram (ECG) with wide complex tachycardia, one must differentiate between ventricular tachycardia and supraventricular tachycardia conducted with aberrancy. ECG criteria are used and algorithms developed to aid in differential diagnosis. They are based on finding ECG signs of ventriculoatrial dissociation and QRS morphologies inconsistent with classic bundle branch block...
September 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#16
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
September 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28800177/exercise-stress-test-reveals-ineligibility-for-subcutaneous-implantable-cardioverter-defibrillator-in-patients-with-brugada-syndrome
#17
Motomi Tachibana, Nobuhiro Nishii, Hiroshi Morita, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The eligibility of patients with Brugada syndrome (BrS) for implantation of a subcutaneous implantable cardioverter defibrillator (S-ICD) is not well known. This study aimed to clarify the eligibility of BrS patients for S-ICD using electrocardiography (ECG) at rest and during exercise testing. We also analyzed factors associated with ineligibility for S-ICD from standard 12-lead ECG at rest. METHODS: We enrolled 110 consecutive BrS patients who visited Okayama university hospital from December 2015 to December 2016...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28794532/local-anaesthetic-systemic-toxicity-following-oral-ingestion-in-a-child-revisiting-dibucaine
#18
Raylene Dias, Nandini Dave, Milind S Tullu, Chandrahas T Deshmukh
Dibucaine, a potent and toxic local anaesthetic, although currently withdrawn by the United States Food and Drug Administration for use as a spinal anaesthetic, continues to remain available in many over-the-counter topical formulations. Systemic toxicity following oral ingestion of local anaesthetics is rare. We report a case of accidental ingestion of dibucaine (ear drops) in a 7-year-old child who developed diplopia, giddiness, ventricular premature contractions and a right bundle branch block. We also present a brief discussion on the pharmacologic and toxicity profile of dibucaine, the Naranjo algorithm for assessing causality in case of adverse drug reactions and a review of current guidelines on the management of local anaesthetic systemic toxicity...
July 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28794367/earlier-right-ventricular-pacing-in-cardiac-resynchronization-therapy-for-a-patient-with-right-axis-deviation
#19
Yusuke Hattori, Kohei Ishibashi, Takashi Noda, Hideo Okamura, Hideaki Kanzaki, Toshihisa Anzai, Satoshi Yasuda, Kengo Kusano
We describe the case of a 37-year-old woman who presented with complete right bundle branch block and right axis deviation. She was admitted to our hospital due to severe heart failure and was dependent on inotropic agents. Cardiac resynchronization therapy was initiated but did not improve her condition. After the optimization of the pacing timing, we performed earlier right ventricular pacing, which led to an improvement of her heart failure. Earlier right ventricular pacing should be considered in patients with complete right bundle branch block and right axis deviation when cardiac resynchronization therapy is not effective...
August 10, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28794085/idiopathic-ventricular-arrhythmias-originating-from-the-parietal-band-electrocardiographic-and-electrophysiological-characteristics-and-outcome-of-catheter-ablation
#20
Takumi Yamada, Naoki Yoshida, Taihei Itoh, Silvio H Litovsky, Harish Doppalapudi, H Thomas McElderry, G Neal Kay
BACKGROUNDS: The parietal band is one of the muscle bands in the right ventricle. This study investigated the electrocardiographic and electrophysiological characteristics and ablation outcome of idiopathic ventricular arrhythmias (VAs) originating from the parietal band. METHODS AND RESULTS: We studied 14 patients with idiopathic VA origins in the parietal band among 294 consecutive patients with VA origins in the right ventricle. The QRS morphologies of the parietal band VAs were characterized by a left bundle branch block and left inferior (n=12) or superior (n=2) axis pattern with the presence of a notch in the middle of the QRS in all cases, precordial transition at ≤lead V3 in 7 patients, and a slow QRS onset in 4 patients...
August 2017: Circulation. Arrhythmia and Electrophysiology
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