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Premature ventricular complexes

Sang-Geon Cho, Zeenat Jabin, Ki Seong Park, Jahae Kim, Sae-Ryung Kang, Seong Young Kwon, Geum-Cheol Jeong, Minchul Song, Jong Sang Kim, Jae Yeong Cho, Hyun Kuk Kim, Ho-Chun Song, Jung-Joon Min, Hee-Seung Bom
PURPOSE: The aim of this study was to evaluate the prognostic value of additional evaluation of left ventricular mechanical dyssynchrony (LVMD) by gated myocardial perfusion single-photon emission computed tomography (GMPS) in patients with acute myocardial infarction (MI) and multivessel disease. METHODS: One hundred and nine acute MI patients with >50 % stenosis in at least one non-culprit artery who underwent GMPS within 2 weeks were enrolled. All patients underwent successful revascularization of the culprit arteries...
October 18, 2016: European Journal of Nuclear Medicine and Molecular Imaging
Ebru Yalın İmamoğlu, Ayşe Güler Eroğlu
AIM: To investigate ventricular arrhythmias in children with primary mitral valve prolapse and to evaluate its relation with QT length, QT dispersion, autonomic function tests and heart rate variability measurements. MATERIAL AND METHODS: Fourty two children with mitral valve prolapse and 32 healthy children were enrolled into the study. Twelve-lead electrocardiograms, autonomic function tests, echocardiography and 24-hour rhythm Holter tests were performed. Electrocardiograms were magnified digitally...
September 2016: Türk Pediatri Arşivi
Marisol Martínez-Alanis, Silvia Ruiz-Velasco, Claudia Lerma
BACKGROUND: Most approaches to predict ventricular tachyarrhythmias which are based on RR intervals consider only sinus beats, excluding premature ventricular complexes (PVCs). The method known as heartprint, which analyses PVCs and their characteristics, has prognostic value for fatal arrhythmias on long recordings of RR intervals (>70,000 beats). OBJECTIVE: To evaluate characteristics of PVCs from short term recordings (around 1000 beats) and their prognostic value for imminent sustained tachyarrhythmia...
October 3, 2016: International Journal of Cardiology
Ahmed Karim Talib, Akihiko Nogami, Itsuro Morishima, Yasushi Oginosawa, Kenji Kurosaki, Shinya Kowase, Yuki Komatsu, Kenji Kuroki, Miyako Igarashi, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: The most common form of idiopathic Purkinje-related ventricular tachycardia (VT) is the reentrant type. We describe the clinical and electrophysiological characteristics of focal non-reentrant fascicular tachycardia. METHODS AND RESULTS: Among 530 idiopathic VT patients who were referred for ablation, we identified 15 (2.8%) with non-reentrant fascicular tachycardia (11 men, 45±21 years). Sinus rhythm ECG showed normal conduction intervals with a His-ventricular interval of 41±4 ms...
October 2016: Circulation. Arrhythmia and Electrophysiology
D A Frese, J D Thomason, C Reinhardt, S Bartle, D Rethorst, G H Loneragan, D Thomson
INTRODUCTION: Atrial premature complexes have been reported to be the most common arrhythmia in cattle and is suspected to be secondary to systemic disease, especially gastrointestinal disease. In order to properly identify pathologic arrhythmia in cattle, the normal rhythm and arrhythmia prevalence should be defined. The objective of this study was to determine the normal heart rate, rhythm, number of ventricular premature complexes (VPCs), and atrial premature complexes (APCs) in unrestrained Angus steers...
October 6, 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
Mahmoud A Abdelsalam, Jeffrey B Geske
CLINICAL INTRODUCTION: A 77-year-old female was referred for evaluation of an episode of syncope while eating breakfast. There was no history of fall, syncope, prodrome, dyspnoea, chest discomfort or palpitations. Medical history was notable for hyperlipidaemia and treated hypertension. Blood pressure was 140/90 mm Hg, pulse 85  beats per minute (BPM). No murmurs were present on cardiac examination. ECG revealed normal sinus rhythm with left ventricular (LV) hypertrophy (see online supplementary figure S1)...
September 23, 2016: Heart: Official Journal of the British Cardiac Society
Natália Stela Sandes Ferreira, Tatiana La Croix Barros, Ronaldo Altenburg Gismondi
Arrhythmias are the most common cardiac complication during gestational period and may occur in women with or without known structural heart disease. Premature extra beats and sustained tachyarrhythmias are the most common arrhythmias in pregnancy. Symptomatic episodes occur in 20-44% of pregnant women, usually as palpitations, dizziness, or syncope. We searched on Pubmed for ventricular premature complexes (VPC) in pregnant women and found no case reporting increased incidence of this arrhythmia while supine...
2016: Case Reports in Medicine
Sophie Van Malderen, Sip Wijchers, Ferdi Akca, Kadir Caliskan, Tamas Szili-Torok
BACKGROUND: Noncompaction cardiomyopathy (NCCM) is considered to be the result of an arrest in the normal myocardial embryogenesis. The histological, developmental, and electrophysiological explanation of ventricular arrhythmias in NCCM is still unknown. The aim of this study was to determine the origin of premature ventricular contractions (PVCs) in NCCM and to identify any predominant arrhythmic foci. METHODS: Retrospective data from our NCCM registry including 101 patients were analyzed...
August 29, 2016: Annals of Noninvasive Electrocardiology
Ammar M Killu, Siva K Mulpuru, Mohammed A Al-Hijji, Alan Sugrue, Thomas M Munger, David O Hodge, Christopher J McLeod, Douglas L Packer, Suraj Kapa, Samuel J Asirvatham, Paul A Friedman
Percutaneous epicardial access (EpiAcc) is used in an attempt to improve outcomes of ablation. We aim to report our experience in EpiAcc for management of symptomatic ventricular premature complexes (VPC) and ventricular tachycardia (VT). All patients from January 2004 to July 2014 who underwent EpiAcc as part of a VPC or VT ablation procedure were included. Outcomes between those with endocardial-only (Gp1) and endocardial/epicardial (Gp2) ablation and those for VPC and VT ablation were compared. EpiAcc for VPC or VT ablation was attempted in 173 patients; 10 patients were excluded because of failure of access (n = 7) or no ablation performed (n = 3)...
September 15, 2016: American Journal of Cardiology
Ali Kazemi Saeid, George J Klein, Peter Leong-Sit
Sustained monomorphic ventricular tachycardia or repetitive premature ventricular complexes can be seen in patients with structurally normal hearts. Among these types of patients, the prognosis is predominantly benign and the treatment mostly focused on elimination of symptoms rather than improving survival or reduction of mortality. This article focuses on the pharmacologic options for management and compares them with invasive options. Based on the current literature, we demonstrate that medical therapies should be used as first-line management and favored over invasive therapies...
September 2016: Cardiac Electrophysiology Clinics
Alex Y Tan, Kenneth Ellenbogen
Idiopathic ventricular tachycardia is often considered a benign form of ventricular arrhythmia in patients without apparent structural heart disease. However, a subset of patients may develop malignant ventricular arrhythmias and present with syncope and sudden cardiac arrest. Survivors of cardiac arrest are candidates for implantable cardiac defibrillators (ICDs). The indications for ICDs in patients with less than a full-blown cardiac arrest presentation but with electrocardiographically high-risk ectopy features remain uncertain...
September 2016: Cardiac Electrophysiology Clinics
Raphael Sung, Melvin Scheinman
Fascicular arrhythmias encompass a wide spectrum of ventricular arrhythmias that depend on the specialized conduction system of the right and left ventricles. These arrhythmias include premature ventricular complexes, monomorphic ventricular tachycardia, polymorphic ventricular tachycardia, and ventricular fibrillation. These arrhythmias may be organized by mechanism, including intrafascicular reentry, interfascicular reentry, and focal. Mapping and ablation of the fascicular system can result in high cure rates of debilitating and potentially life-threatening arrhythmias...
September 2016: Cardiac Electrophysiology Clinics
Jeffrey Luebbert, Denise Auberson, Francis Marchlinski
Premature ventricular complexes (PVCs) are consistently associated with worse prognosis and higher morbidity and mortality. This article reviews PVCs and their presentation in patients with an apparently normal heart. Patients with PVCs may be completely asymptomatic, whereas others may note severely disabling symptoms. Cardiomyopathy may occur with frequent PVCs. Diagnostic work-up is directed at obtaining 12-lead ECG to characterize QRS morphology, Holter monitor to assess frequency, and echo and advanced imaging to assess for early cardiomyopathy and exclude structural heart disease...
September 2016: Cardiac Electrophysiology Clinics
Minoru Tagawa, Yukie Ochiai, Yuichi Nakamura, Hiroshi Furushima, Masaomi Chinushi
No abstract text is available yet for this article.
November 1, 2016: International Journal of Cardiology
Veronica Sudacevschi, Cathy Bertrand, Marie L Chadenat, Chloé Tarnaud, Fernando Pico
BACKGROUND AND OBJECTIVE: Recent randomized studies have shown the potential of prolonged cardiac rhythm monitoring to detect silent paroxysmal atrial fibrillation (PAF) in patients with cryptogenic stroke. Our aim was to identify clinical and magnetic resonance imaging (MRI) factors that predict the detection of PAF during long-duration rhythm cardiac Holter (LDRCH) monitoring. METHODS: A retrospective analysis was performed using data from 171 patients with cryptogenic stroke or transient ischemic attack who underwent LDRCH monitoring (i...
August 2, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Xin Liu, Guang Yang, Li-xin Wang, Jin Wei, Wu-hong Tan, Yan-he Zhu
OBJECTIVE: To observe ten-year prognosis of patients with latent Keshan disease (KD) and to determine its associated risk factors. METHODS: A total of 448 patients with newly diagnosed latent KD were monitored and followed up for 10 years. Their ECG abnormalities were classified as major or minor using the Minnesota Code. COX proportional hazards regression models were established to identify risk factors associated with the development of chronic KD. RESULTS: A final sample of 414 cases was included in analyses, with an average of (112...
May 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
Bryant Priromprintr, Michael J Silka, Jonathan Rhodes, Anjan S Batra
BACKGROUND: Although percutaneous Melody valve implant has become an accepted alternative to surgical pulmonary valve replacement in patients with congenital heart disease (CHD), the benefit regarding frequency and severity of arrhythmias remains undefined. OBJECTIVE: This study evaluated the impact of Melody valve implant on the type and frequency of arrhythmias during cardiopulmonary exercise testing (CPET) and subsequent clinical outcome. METHODS: As part of the phase I Melody valve clinical trial, 136 patients with CHD underwent prospective serial evaluation including CPET prior to, 6 months after, and annually for 5 years...
July 21, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Allen Hoang, Jameel Ahmed, David Luke Glancy
In a woman with sinus rhythm a couplet of ventricular premature complexes is followed by a retrograde P wave. A subsequent couplet of ventricular premature complexes is followed by typical atrioventricular nodal reentrant tachycardia.
September 15, 2016: American Journal of Cardiology
Steven D Verba, Brock T Jensen, Jeffrey S Lynn
OBJECTIVE: Deer hunting includes various stimuli resulting in augmented sympathetic activity, increased heart rate (HR) response, and rhythm changes. Collectively, these superimposed stresses may increase an individual's risk for cardiovascular events. We undertook this study to evaluate HR and rhythm responses in multiple phases of deer hunting in men and women with and without cardiovascular disease (CVD). METHODS: Nineteen participants age 38.3 ± 13.8 years (mean ± SD) with body mass index 29...
September 2016: Wilderness & Environmental Medicine
Joonseok Kim, Minkyung Kwon, Jinsoo Chang, David Harris, Myron C Gerson, Seung-Sik Hwang, Seung-Won Oh
Ventricular premature complexes (VPCs) during stress testing in the general population are commonly seen in clinical practice, but their prognostic value is not well understood. A comprehensive literature search of MEDLINE, Embase, and the Cochrane Library from January 1970 to May 2015 was conducted. Observational cohort studies on general populations evaluating the association between exercise-induced VPCs and all-cause or cardiovascular mortality were included in the analysis. Nine studies comprising 62,488 participants comparing clinical outcomes of patients with and without exercise-induced VPCs were included...
September 1, 2016: American Journal of Cardiology
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