Matthew J Reed, Alexandra Muir, Julia Cullen, Ross Murphy, Valery Pollard, Goran Zangana, Sean Krupej, Sylvia Askham, Patricia Holdsworth, Lauren Davies
Background and Objectives: The Investigation of Palpitations in the ED (IPED) study showed that a smartphone-based event recorder increased the number of patients in whom an electrocardiogram (ECG) was captured during symptoms over five-fold to more than 55% at 90 days compared to standard care and concluded that this safe, non-invasive and easy-to-use device should be considered part of on-going care to all patients presenting acutely with unexplained palpitations or pre-syncope. This study reports the process of establishing a smartphone palpitation and pre-syncope ambulatory care Clinic (SPACC) service...
February 6, 2021: Medicina
Anissa F McClelland, Amit K J Mandal, Neil B Patel, Andrew T Cox, Constantinos G Missouris
No abstract text is available yet for this article.
February 2021: Annals of Emergency Medicine
T A Bunn, C Robveille, P J Irwin, Kfa Langner
BACKGROUND: Brain metastases are well known for disseminated hemangiosarcoma involving the right atrium/auricle. CASE REPORT: An 8-year-old male Australian Shepherd Dog presented with a 3-day history of circling to the left. A neurological examination revealed obtunded mentation, right hemi-inattention, bilateral strabismus towards the left side and absent physiological nystagmus. In addition, the dog had muffled heart sounds on auscultation and exercise-induced weakness...
January 13, 2021: Australian Veterinary Journal
Anna Blum, Junior Mudji, Leticia Grize, Christian Burri, Michael J Zellweger, Johannes Blum
Both American Trypanosomiasis (Chagas disease) and Human African Trypanosomiasis (HAT) are diseases caused by single-celled flagellate protozoan parasites. While cardiac complications such as conduction problems and heart failure are very common in Chagas disease there is little known about the long-term effects of Human African Trypanosomiasis (HAT) on cardiac sequelae in Sub-Saharan Africa, where heart failure has become an increasing problem and growing burden. In the context of clinical trials conducted between 2004 and 2005 in the Democratic Republic of the Congo (DRC), the prevalence of HAT related signs and symptoms and an ECG were evaluated prior to the initiation of treatment...
December 20, 2020: One Health
A Harper, A Gerth, C Marsh, C Park
A 31-year-old primiparous woman with a history of bigeminy as a teenager developed atrial fibrillation with rapid ventricular response during elective caesarean section. Initial postoperative medical management was undertaken on the maternal high dependency unit and involved the administration of beta-blockers and digoxin. On postoperative day 1 the patient was transferred to the coronary care unit where she subsequently required synchronised direct current cardioversion to restore sinus rhythm. The patient remained on the coronary care unit for 5 days before discharge...
July 2020: Anaesthesia reports
Hina Emanuel, Katie Ahlstrom, Sarah Mitchell, Katrina McBeth, Aravind Yadav, Carlos Flores Oria, Candice Da Costa, James M Stark, Ricardo A Mosquera, Cindy Jon
A 15-year-old boy with autonomic dysfunction and mitochondrial disease was diagnosed with sleep-related hypoventilation (SRH) at 6 years of age and treated with bilevel positive airway pressure (BPAP) therapy. At 12 years of age, treatment was transitioned to volume assured pressure support (VAPS) due to clinical evidence of respiratory muscle weakness. Subsequent titration polysomnogram revealed the emergence of cardiac arrhythmia (isolated PVCs, bigeminy and trigeminy) while on VAPS mode that improved after transition to BPAP therapy...
November 24, 2020: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Tomonori Miki, Hirokazu Shiraishi, Takeshi Shirayama, Satoaki Matoba
Background: Recent reports on catheter ablation for premature ventricular complex (PVC) or ventricular tachycardia in the context of cardiomyopathy suggest that ablation can improve cardiac function and decrease the number of PVCs. However, reports on exercise tolerance after catheter ablation for PVC are few. Case: A 56-year-old woman consulted her primary care doctor presenting with palpitations and fatigue on exertion. Her left ventricular systolic function had been normalized with medications after a diagnosis of dilated cardiomyopathy 5 years previously...
2020: Progress in rehabilitation medicine
Giulio Conte, John R Giudicessi, Michael J Ackerman
Prior to the recognition of distinct clinical entities, such as Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, and long QT syndrome, all sudden cardiac arrest (SCA) survivors with ventricular fibrillation (VF) and apparently structurally normal hearts were labelled as idiopathic ventricular fibrillation (IVF). Over the last three decades, the definition of IVF has changed substantially, mostly as result of the identification of the spectrum of SCA-predisposing genetic heart diseases (GHDs), and the molecular evidence, by post-mortem genetic analysis (aka, the molecular autopsy), of cardiac channelopathies as the pathogenic basis for up to 35% of unexplained cases of sudden cardiac death (SCD) in the young...
October 10, 2020: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Elsa Genzoni, Fabian Braun, Jerome Van Zaen, Philippe Renevey, Mathieu Lemay, Etienne Pruvot, Jean-Marc Vesin
Atrial fibrillation (AF) affects millions of people worldwide and needs to be diagnosed in its early stage to provide proper treatment. However, the numerous wearable devices available today are not yet able to discriminate AF episodes from other cardiac arrhythmias and merely detect normal vs abnormal rhythms.In this study we investigated the performance of a traditional classifier - designed to distinguish AF and sinus rhythm (SR) using inter-beat intervals (IBI) - when confronted with other - non-AF - arrhythmias...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Gita Gupta, Peter M Farrehi, Ronald D Chervin
No abstract text is available yet for this article.
June 20, 2020: Sleep Medicine
Louise Reilly, Francisco J Alvarado, Di Lang, Sara Abozeid, Hannah Van Ert, Cordell Spellman, Jarrett Warden, Jonathan C Makielski, Alexey V Glukhov, Lee L Eckhardt
BACKGROUND: Arrhythmia syndromes associated with KCNJ2 mutations have been described clinically; however, little is known of the underlying arrhythmia mechanism. We create the first patient inspired KCNJ2 transgenic mouse and study effects of this mutation on cardiac function, I K1 , and Ca2+ handling, to determine the underlying cellular arrhythmic pathogenesis. METHODS: A cardiac-specific KCNJ2 -R67Q mouse was generated and bred for heterozygosity (R67Q+/- ). Echocardiography was performed at rest, under anesthesia...
September 2020: Circulation. Arrhythmia and Electrophysiology
Laszlo Littmann, József Tenczer
One of the more common causes of bigeminy at the ventricular level is type 1 second-degree atrioventricular (AV) block with 3:2 conduction ratio. In 3:2 Wenckebach, the shorter cycles reflect the consecutively conducted impulses and the longer cycles coincide with the blocked P waves. Theoretically, however, depending on the degree of conduction delay between the first and second transmitted impulses, other types of spacing of the QRS complexes may become possible. In this retrospective study of 180 patients who underwent electrophysiologic studies for symptomatic arrhythmias, atrial pacing-induced 3:2 Wenckebach periodicity resulted in a regular ventricular rate and/or in "reverse bigeminy" in 16 cases (8...
August 15, 2020: Journal of Electrocardiology
Guadalupe Garcia Isla, Valentina D A Corino, Luca Mainardi
A detector based only on RR intervals capable of classifying other tachyarrhythmias in addition to atrial fibrillation (AF) could improve cardiac monitoring. In this paper a new classification method based in a 2D non-linear RRI dynamics representation is presented. For this aim, the concepts of Poincar Images and Atlases are introduced. Three cardiac rhythms were targeted: Normal sinus rhythm (NSR), AF and atrial bigeminy (AB). Three Physionet open source databases were used. Poincar images were generated for all signals using different Poincar plot configurations: RR, dRR and RRdRR...
July 28, 2020: IEEE Journal of Biomedical and Health Informatics
Masaaki Yokoyama, Seigo Yamashita, Michifumi Tokuda, Saagar Mahida, Michiiro Yoshimura, Teiichi Yamane
We present a case of a 67-year-old female with a previous history of a pulmonary vein isolation for paroxysmal atrial fibrillation who presented with supraventricular bigeminy with a constant coupling interval. The supraventricular bigeminy originated from the anterior mitral annulus with initial mapping suggestive of a focal mechanism. However detailed mapping using an ultra-high resolution mapping system (with manual shifting of the annotation window) revealed very low amplitude potentials connecting the previous sinus beat with continuous activation along the mitral annulus...
June 30, 2020: Journal of Cardiovascular Electrophysiology
Juan Benezet-Mazuecos, Álvaro Lozano Rosado, Julian Crosa
ECG of patients with Wolf Parkinson White (WPW) syndrome may simulate other entities such as myocardial infarction, ventricular premature complexes, ventricular bigeminy, accelerated idioventricular rhythm, intermittent bundle branch block or electrical alternans. On the other hand, the opposite can also occur where these other conditions may simulate WPW. We present the case of a young patient referred for WPW ablation showing an incessant accelerated idioventricular rhythm mimicking preexcitation.
July 2020: Journal of Electrocardiology
Quentin Voglimacci-Stephanopoli, Frederic Sacher, Claire Martin, Christian Meyer, Ruairidh Martin, Anne Rollin, Stefano Capellino, Pierre Mondoly, Franck Mandel, Pierre Jaïs, Maud Tabuteau, Philippe Maury
PURPOSE: Scars and abnormal electrograms may significantly differ according to the activation wavefront. We propose a new fast technique for reliable comparison between sinus rhythm and ventricular pacing using a single map acquisition and the Rhythmia™ 3D mapping system. METHODS: A special programming of the external stimulator was assuring full stable regular paced-beat bigeminy during spontaneous rhythm. A first map was acquired for the spontaneous cardiac beat...
June 19, 2020: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Arlene Te, Tzong-Yow Wu, Yen-Lin Chen, Dee Pei, Shu-Hsiang Liu, Yi-Ching Su, Chun-Hsien Hsu
No abstract text is available yet for this article.
June 8, 2020: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
Dimitrios Katsaras, Jonathan Ariyaratnam, Shajil Chalil, Khalid Abozguia
No abstract text is available yet for this article.
June 3, 2020: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Ashleigh Long, Paul Marik
Metastatic cancer that involves the structures of the heart is a rare complication and most commonly diagnosed during postmortem examination. Classically, the development of secondary tumors involves invasion of the pericardium or the myocardium and may disrupt the cardiac conduction system, causing new arrhythmias and heart failure. In this article, we present the case of a 58-year-old female with new diagnosis of ventricular bigeminy, and evidence of cardiac tamponade physiology from direct compression of the right ventricular outflow tract from high-grade carcinoma of the left breast...
January 2020: Journal of Investigative Medicine High Impact Case Reports
Benjamin A Teplitzky, Michael McRoberts, Hamid Ghanbari
BACKGROUND: Increasing utilization of long-term outpatient ambulatory electrocardiographic (ECG) monitoring continues to drive the need for improved ECG interpretation algorithms. OBJECTIVE: The purpose of this study was to describe the BeatLogic® platform for ECG interpretation and to validate the platform using electrophysiologist-adjudicated real-world data and publicly available validation data. METHODS: Deep learning models were trained to perform beat and rhythm detection/classification using ECGs collected with the Preventice BodyGuardian® Heart monitor...
May 2020: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"