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Annals of Noninvasive Electrocardiology

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https://www.readbyqxmd.com/read/28213958/significance-of-a-negative-sinus-p-wave-in-lead-v2-of-the-clinical-electrocardiogram
#1
Rex N MacAlpin
BACKGROUND: A negative sinus P wave in lead V2 (NPV2 ) of the electrocardiogram (ECG) is rare when leads are positioned correctly. This study was undertaken to clarify the significance of an unusually high incidence of this anomaly found in ECGs at my institution. METHODS: One thousand four hundred thirty-five ECGs were randomly selected to determine the incidence and gender frequency in tracings showing positive (PPV2 ), and biphasic (BPV2 ) P waves in V2 , as well as NPV2 ...
February 18, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28213932/correlations-between-electrocardiogram-and-biomarkers-in-acute-pulmonary-embolism-analysis-of-zatpol-2-registry
#2
Piotr Kukla, Dariusz A Kosior, Andrzej Tomaszewski, Katarzyna Ptaszyńska-Kopczyńska, Katarzyna Widejko, Robert Długopolski, Andrzej Skrzyński, Piotr Błaszczak, Kamil Fijorek, Marcin Kurzyna
BACKGROUND: Electrocardiography (ECG) is still one of the first tests performed at admission, mostly in patients (pts) with chest pain or dyspnea. The aim of this study was to assess the correlation between electrocardiographic abnormalities and cardiac biomarkers as well as echocardiographic parameter in patients with acute pulmonary embolism. METHODS: We performed a retrospective analysis of 614 pts. (F/M 334/280; mean age of 67.9 ± 16.6 years) with confirmed acute pulmonary embolism (APE) who were enrolled to the ZATPOL-2 Registry between 2012 and 2014...
February 18, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28213914/novel-method-to-assess-intrinsic-heart-rate-recovery-in-ambulatory-ecg-recordings-tracks-cardioprotective-effects-of-chronic-autonomic-regulation-therapy-in-patients-enrolled-in-the-anthem-hf-study
#3
Gerrard M Carlson, Imad Libbus, Badri Amurthur, Bruce H KenKnight, Richard L Verrier
BACKGROUND: Postexercise heart rate recovery (HRR) is a powerful and independent predictor of mortality. Autonomic regulation therapy (ART) with chronic vagus nerve stimulation (VNS) has been shown to improve ventricular function in patients with chronic heart failure. However, the effect of ART on HRR in patients with heart failure remains unknown. METHODS: A new measure involving quantification of intrinsic HRR was developed for 24-hr ambulatory ECG (AECG) recordings based on spontaneous heart rate changes observed during daily activity in patients with symptomatic heart failure and reduced ejection fraction...
February 17, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28211121/relationship-between-qt-and-jt-peak-interval-variability-in-prepubertal-children
#4
Yuka Takeuchi, Yumi Omeki, Kayo Horio, Miki Nishio, Rina Nagata, Shota Oikawa, Yuri Mizutani, Arisa Nagatani, Yuri Funamoto, Hidetoshi Uchida, Masayuki Fujino, Yoshihiko Eryu, Hiroko Boda, Masafumi Miyata, Tadayoshi Hata
BACKGROUND: The QT variability index (QTVI) is a noninvasive index of repolarization lability that has been applied to subjects with cardiovascular disease. QTVI provides a ratio of normalized QT variability to normalized heart rate variability, and therefore includes an assessment of autonomic nervous activity. However, measurement of QT time is particularly difficult in children, who exhibit physiologically high heart rates compared with adults. In this study, we developed a set of standard values of J-point to Tpeak interval (JTp) for infants by age, and assessed the correlation of QTVI with the JTp variability index (JTpVI)...
February 17, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28205276/positive-t-wave-in-lead-avr-as-an-independent-predictor-for-1-year-major-adverse-cardiac-events-in-patients-with-first-anterior-wall-st-segment-elevation-myocardial-infarction
#5
Akihiro Kobayashi, Naoki Misumida, Shunsuke Aoi, Yumiko Kanei
BACKGROUND: Positive T wave in lead aVR has been shown to predict an adverse in-hospital outcome in patients with anterior wall ST-segment elevation myocardial infarction (STEMI). However, the prognostic value of positive T wave in lead aVR on a long-term outcome has not been fully explored. METHODS: We performed a retrospective analysis of 190 consecutive patients with first anterior wall STEMI who underwent an emergent coronary angiogram. Patients were divided into those with positive T wave > 0 mV and those with negative T wave ≦ 0 mV in lead aVR...
February 16, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28191737/ecg-in-athlete-normal-or-pathologic-variant
#6
LETTER
Helder Dores, António Freitas
No abstract text is available yet for this article.
February 13, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28191684/sequence-of-cardiovascular-autonomic-alterations-after-fingolimod-initiation
#7
Sakari Simula, Tomi P Laitinen, Tiina M Laitinen, Päivi Hartikainen, Juha E K Hartikainen
BACKGROUND: Homeostasis between heart rate and blood pressure is based on several interacting regulatory reflexes, which become influenced by fingolimod initiation. The aim of this study was to determine the sequence of changes in cardiovascular autonomic regulation after fingolimod initiation. METHODS: Twenty-seven patients with relapsing-remitting multiple sclerosis underwent continuous electrocardiogram recording during the first 6 hr after the first dose of fingolimod...
February 13, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28188661/idiopathic-epicardial-ventricular-tachycardia-from-the-coronary-venous-system-from-electrocardiographic-recognition-to-appropriate-therapy
#8
Stéphane Boulé, Claire Federspiel, Eric Verbrugge, Didier Klug
Idiopathic epicardial ventricular tachycardias (VTs) account for 9% of idiopathic VTs. The recognition of this entity is important, as a minimally invasive ablation procedure performed exclusively through the coronary sinus branches may be considered, avoiding the potential risks associated with access to the left ventricular endocardium, the aortic root, and the pericardial space. The electrocardiographic features and therapeutic management of this rare form of tachycardia are discussed.
February 11, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28117536/cardiovascular-magnetic-resonance-guided-management-of-mild-to-moderate-left-ventricular-systolic-dysfunction-cmr-guide-study-protocol-for-a-randomized-controlled-trial
#9
Joseph B Selvanayagam, Trent Hartshorne, Laurent Billot, Suchi Grover, Graham S Hillis, Werner Jung, Henry Krum, Sanjay Prasad, Andrew D McGavigan
BACKGROUND: The majority of sudden cardiac death (SCD) in patients with heart failure occurs in those with mild-moderate left ventricular (LV) systolic dysfunction (LVEF 36-50%) who under current guidelines are ineligible for primary prevention implantable cardiac defibrillator (ICD) therapy. Recent data suggest that cardiac magnetic resonance (CMR) evidence of replacement fibrosis forms a substrate for malignant arrhythmia and therefore potentially identifies a subgroup at increased risk of SCD...
January 24, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28090710/fibrillatory-wave-amplitude-on-transesophageal-ecg-as-a-marker-of-left-atrial-low-voltage-areas-in-patients-with-persistent-atrial-fibrillation
#10
Ran Yin, Yongnan Fu, Zhongming Yang, Bingong Li, Jintian Pen, Zeqi Zheng
BACKGROUND: Low-voltage areas (LVAs) are frequently observed in patients with persistent atrial fibrillation (PeAF) and may represent adverse atrial remodeling. However, noninvasive method of evaluating LAVs is not well established. METHODS: In a cohort of 68 patients with PeAF, endocardial voltage maps of left atrium (LA) were created during sinus rhythm after pulmonary vein isolation (PVI). LVAs were defined as areas with electrogram amplitudes <0.5 mV. LA-LVAs were correlated with clinical, echocardiographic, surface, and transesophageal electrocardiography (TE-ECG) variables...
January 16, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28058808/repeatability-of-ectopic-beats-from-48-hr-ambulatory-electrocardiography-the-atherosclerosis-risk-in-communities-aric-study
#11
Michelle L Meyer, Elsayed Z Soliman, Lisa M Wruck, Thomas H Mosley, Lynne E Wagenknecht, Anna K Poon, Eric A Whitsel, Alvaro Alonso, Gerardo Heiss, Laura R Loehr
BACKGROUND: The purpose of this study was to characterize the repeatability of ectopic beats, defined by premature atrial contractions (PACs) and premature ventricular contractions (PVCs), on ambulatory electrocardiogram (aECG) monitoring and evaluate the effect of length of aECG monitoring on the repeatability estimates. METHODS: This analysis includes 95 randomly selected participants from the Atherosclerosis Risk in Communities Study (ARIC; 2011-2013). The participants wore a Holter monitor for two, 48-hr periods separated by a mean of 38 days following an identical, standardized protocol...
January 6, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28044401/atrioventricular-synchrony-in-the-background-of-ventricular-noise-and-undersensing
#12
Paweł T Matusik, Andrzej Ząbek, Patrycja S Matusik, Barbara Małecka, Jacek Lelakowski
The 24-hr electrocardiogram (ECG) interpretation in patients with double-chamber pacemakers may be challenging. The difficulty increases if not well-known pacemaker algorithm and device malfunction coexist. We show atrial synchronization pace (ASP) in a patient with ventricular lead damage. We provide detailed description of electrocardiogram and intracardiac electrogram. ASP may confuse 24-hr ECG monitoring interpretation, especially in patients with ventricular lead dysfunction.
January 3, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28044391/initial-electrocardiogram-as-determinant-of-hospital-course-in-st-elevation-myocardial-infarction
#13
Michael A Millard, Vijaiganesh Nagarajan, Luke C Kohan, Robert C Schutt, Ellen C Keeley
BACKGROUND: A proportion of patients with ST elevation myocardial infarction (STEMI) have an initial electrocardiogram (ECG) that is nondiagnostic and are definitively diagnosed on a subsequent ECG. Our aim was to assess whether patients with a nondiagnostic initial ECG are different than those with a diagnostic initial ECG. METHODS: We collected demographic, ECG, medication, angiographic, and in-hospital clinical outcome data in consecutive patients undergoing primary percutaneous coronary intervention for STEMI at our institution from June 2009 to June 2013...
January 3, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28044381/the-romhilt-estes-electrocardiographic-score-predicts-sudden-cardiac-arrest-independent-of-left-ventricular-mass-and-ejection-fraction
#14
Navid Darouian, Aapo L Aro, Kumar Narayanan, Audrey Uy-Evanado, Carmen Rusinaru, Kyndaron Reinier, Karen Gunson, Jonathan Jui, Sumeet S Chugh
BACKGROUND: The Romhilt-Estes point score system (RE) is an established ECG criterion for diagnosing left ventricular hypertrophy (LVH). In this study, we assessed for the first time, whether RE and its components are predictive of sudden cardiac arrest (SCA) independent of left ventricular (LV) mass. METHODS: Sudden cardiac arrest (SCA) cases occurring between 2002 and 2014 in a Northwestern US metro region (catchment area approx. 1 million) were compared to geographic controls...
January 3, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28019054/interatrial-block-and-interatrial-septal-thickness-in-patients-with-paroxysmal-atrial-fibrillation-undergoing-catheter-ablation-long-term-follow-up-study
#15
Enes E Gul, Raveen Pal, Jane Caldwell, Usama Boles, Wilma Hopman, Benedict Glover, Kevin A Michael, Damian Redfearn, Chris Simpson, Hoshiar Abdollah, Adrian Baranchuk
BACKGROUND: Interatrial block (IAB) is a strong predictor of recurrence of atrial fibrillation (AF). IAB is a conduction delay through the Bachman region, which is located in the upper region of the interatrial space. During IAB, the impulse travels from the right atrium to the interatrial septum (IAS) and coronary sinus to finally reach the left atrium in a caudocranial direction. No relation between the presence of IAB and IAS thickness has been established yet. OBJECTIVE: To determine whether a correlation exists between the degree of IAB and the thickness of the IAS and to determine whether IAS thickness predicts AF recurrence...
December 25, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28019051/remote-supervision-to-decrease-hospitalization-rate-unified-and-integrated-platform-for-data-collected-from-devices-manufactured-by-different-companies-design-and-rationale-of-the-result-study
#16
Mateusz Tajstra, Adam Sokal, Arkadiusz Gwóźdź, Marcin Wilczek, Adam Gacek, Konrad Wojciechowski, Elżbieta Gadula-Gacek, Elżbieta Adamowicz-Czoch, Katarzyna Chłosta-Niepiekło, Krzysztof Milewski, Piotr Rozentryt, Zbigniew Kalarus, Mariusz Gąsior, Lech Poloński
The number of patients with heart failure implantable cardiac electronic devices (CIEDs) is growing. Hospitalization rate in this group is very high and generates enormous costs. To avoid the need for hospital treatment, optimized monitoring and follow-up is crucial. Remote monitoring (RM) has been widely put into practice in the management of CIEDs but it may be difficult due to the presence of differences in systems provided by device manufacturers and loss of gathered data in case of device reimplantation...
December 25, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28019050/electrocardiographic-left-ventricular-hypertrophy-predicts-atrial-fibrillation-independent-of-left-ventricular-mass
#17
Nikhil Patel, Wesley T O'Neal, S Patrick Whalen, Elsayed Z Soliman
BACKGROUND: Although left ventricular hypertrophy (LVH) detected by electrocardiography (ECG-LVH) and echocardiography (echo-LVH) independently predict cardiovascular disease events, it is unclear if ECG-LVH and echo-LVH independently predict atrial fibrillation (AF). METHODS: This analysis included 4,904 participants (40% male; 85% white) from the Cardiovascular Health Study who were free of baseline AF and major intraventricular conduction delays. ECG-LVH was defined by Minnesota Code Classification from baseline ECG data...
December 25, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28012232/sustained-ventricular-tachycardia-as-a-first-manifestation-of-hypertrophic-cardiomyopathy-with-mid-ventricular-obstruction-and-apical-aneurysm-in-an-elderly-female-patient
#18
Polychronis Dilaveris, Constantina Aggeli, Andreas Synetos, Ioannis Skiadas, Christos-Konstantinos Antoniou, Eleftherios Tsiamis, Konstantinos Gatzoulis, Ioannis Kallikazaros, Dimitrios Tousoulis
Sustained ventricular tachycardia complicating left ventricular apical aneurysms has been reported previously solely in middle-aged patients with hypertrophic cardiomyopathy and mid-cavity obstruction. We report a case of an elderly female patient who presented with incessant ventricular tachycardia as the first clinical manifestation of hypertrophic cardiomyopathy with mid-ventricular obstruction and apical aneurysm.
December 24, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28012220/heart-rate-variability-analysis-during-immediate-recovery-from-exercise-in-overweight-obese-healthy-young-adult-females
#19
Sahar M El Agaty, Azra Kirmani, Ezaz Labban
BACKGROUND: Data on heart rate variability (HRV) changes during immediate recovery period after exercise in overweight/obese healthy young adult females are still inconclusive. The aim of this study was to evaluate the heart rate variability (HRV), heart rate recovery (HRR), and arterial blood pressure immediately after cessation of exercise in overweight/obese healthy young adult females. METHODS: This study was carried out in the laboratory of the Physiology Department, Faculty of Medicine, King Abdulaziz University...
December 24, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28008694/a-narrow-qrs-tachycardia-and-cannon-a-waves-what-is-the-mechanism
#20
Hussam Ali, Gianluca Epicoco, Guido De Ambroggi, Pierpaolo Lupo, Sara Foresti, Riccardo Cappato
Regular narrow QRS tachycardia, particularly if well-tolerated, is usually considered a "benign" arrhythmia of a supraventricular origin. This case concerns an 82-year-old male with ischemic heart disease who presented with recurrent episodes of a narrow QRS tachycardia that was initially diagnosed and treated as atrial tachyarrhythmia. However, careful physical examination and ECG analysis established the correct diagnosis, and the patient was managed appropriately. Remarkably, the observation of irregular cannon A waves, and Lewis lead recording, confirmed atrioventricular dissociation during tachycardia and indicated its underlying mechanism...
December 23, 2016: Annals of Noninvasive Electrocardiology
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