Non-invasive electrophysiological assessment of the optimal configuration of quadripolar lead vectors on ventricular activation times
Cardiac resynchronization therapy (CRT) is now generally delivered via quadripolar leads. Assessment of the effect of different vector programs from quadripolar leads on ventricular activation can be now done using non-invasive electrocardiographic mapping (ECM). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 17, 2018 Category: Cardiology Authors: Helder Pereira, Tom A. Jackson, Benjamin Sieniewicz, Justin Gould, Cheng Yao, Steven Niederer, Christopher A. Rinaldi Source Type: research
The dispersion of myocardial repolarization in ischemic stroke and intracranial hemorrhage
Markers of dispersion of myocardial repolarization have been proposed to identify the patients at higher risk of malignant arrhythmic events. The aim of the present study is to assess a possible association of the electrocardiografic (ECG) markers of the dispersion of repolarization with the type of stroke, involvement of insula, neurological severity (National Institutes of Health Stroke Scale, NIHSS score), and disability (modified Rankin Scale, mRS score) in patients with a cerebrovascular event. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 17, 2018 Category: Cardiology Authors: Alessandra Danese, Manuel Cappellari, Elia Pancheri, Giacomo Mugnai, Nicola Micheletti, Giampaolo Tomelleri, Monica Carletti, Giulia Turri, Vincenzo Marafioti, Salvatore Monaco, Bruno Bonetti, Paolo Bovi Source Type: research
Black athlete electrocardiographic repolarization pattern
There is debate over the use of the electrocardiogram (ECG) to screen athletes for disorders associated with sudden cardiac death, but if screening is completed, accurate ECG interpretation is important. Recently, there has been recognition of a normal black athlete repolarization pattern which includes J-point elevation, convex ST-segment elevation, and T-wave inversions in leads V1 to V4 occurring in 5 –15% of black athletes. This pattern must be differentiated from T-wave inversions that are associated with hypertrophic cardiomyopathy or arrhythmogenic right ventricular cardiomyopathy. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 11, 2018 Category: Cardiology Authors: Michael J. Hermelin, Jordan M. Prutkin Tags: Review Source Type: research
A model for predicting emergency physician opinion of electrocardiogram tracing data quality
Limited work has established an objective measure of ECG quality that correlates with physician opinion of the study. We seek to establish a threshold of acceptable ECG data quality for the purpose of ruling out STEMI derived from emergency physician opinion. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 11, 2018 Category: Cardiology Authors: Mat Goebel, Luke Busico, Greg Snow, Joseph Bledsoe Source Type: research
Image digitization of discontinuous and degraded electrocardiogram paper records using an entropy-based bit plane slicing algorithm
Electrocardiograms (ECGs) are routinely recorded and stored in a variety of paper or scanned image format. Current ECG recording machines record ECG on graph paper, also it provides digitized ECG signal along with automated cardiovascular diagnosis (CVD). However, such recording machines cannot analyse preserved paper ECG records as it requires input in terms of digitized signal. Therefore, it is important to extract ECG signal from these preserved paper ECG records using digitization method. There are different paper degradations that adversely affect digitization process. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 11, 2018 Category: Cardiology Authors: Rupali Patil, Ramesh Karandikar Source Type: research
A single center experience on the clinical utility evaluation of an insertable cardiac monitor
The evaluation of insertable cardiac monitor (ICM) has been largely on the device performance and safety with only limited studies on the clinical utility. The aim of this study was to evaluate the clinical utility of ICM in patients with a variety of clinical presentations. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 8, 2018 Category: Cardiology Authors: Yanhui Li, Teerapat Nantsupawat, Matthew Olson, Venkatakrishna Tholakanahalli, Selcuk Adabag, Zhong Wang, David G. Benditt, Jian-Ming Li Source Type: research
Editorial Board
(Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - May 1, 2018 Category: Cardiology Source Type: research
Electrocardiographic left atrial abnormalities predict cardiovascular mortality
Clinical utilization of electrocardiography for diagnosis of left atrial abnormalities is hampered by variable P-wave morphologies, multiple empiric criteria, and lack of an imaging “gold standard”. Our aim was to determine the prevalence of P-wave patterns and demonstrate which components have associations with cardiovascular death (CVD). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 29, 2018 Category: Cardiology Authors: Le Dung Ha, Aaron F. Grober, Julia Hock, Matthew Wheeler, Ayman Elbadawi, Nishit Biniwale, Basarat Baig, Victor Froelicher Source Type: research
Novel criterion for the differential diagnosis of wide QRS complexes and wide complex tachycardia using the initial activation of QRS on leads V1 and V2
Many diagnostic criteria for the differential diagnosis of wide complex tachycardia (WCT) are complex and not completely accurate. Incorrect diagnosis is also related to error in applying criteria. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 25, 2018 Category: Cardiology Authors: Imane El Hajjaji, Giuliano Becker, Teresa Kus, Alain Vinet, Artur Berkovitz, Marcio Sturmer Source Type: research
Shortening of paced QRS duration after electrocardiographic optimization of left ventricular pacing vector in patients treated with Cardiac Resynchronization Therapy
Choice of left ventricular pacing vector (LVPV) affects the QRS-duration (QRSd) in patients with Cardiac Resynchronization Therapy (CRT). It is not known whether testing all LVPVs reduces QRSd compared to device-based “standard-programming”. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 25, 2018 Category: Cardiology Authors: Casper Lund-Andersen, Helen H. Petersen, Christian J øns, Berit T. Philbert, Michael Vinther, Jesper H. Svendsen Source Type: research
Evaluation of T-wave alternans in pediatric patients with chronic renal failure
Microvolt T-wave alternans (TWA) is known to be useful in prediction of ischemia and sudden death in high-risk populations and there are no studies in children with chronic renal failure (CRF). Cardiac problems seem to be responsible for an important part of death in children and young adults with CRF. The aim of this study is to evaluate Holter microvolts TWA measurements in children with CRF comparing to the control group. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 20, 2018 Category: Cardiology Authors: Olgu Hallioglu, Meryem Keceli, Gulcin Bozlu, Ali Delibas, Derya Karpuz, H üseyin Selvi Source Type: research
Narrow QRS tachycardia with extreme rightward axis. What is the mechanism?
A 25 year old lady presented with palpitation to the emergency department. Her pulse rate was 210 beats per minute. She was hemodynamically stable with a blood pressure of 100/60 mm Hg. 12 lead surface electrocardiogram (ECG) was recorded during the presentation (Fig. 1) and rhythm strip (Fig. 2A) during administration of IV adenosine. What is the likely diagnosis? (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 20, 2018 Category: Cardiology Authors: Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Ajitkumar Valaparambil Source Type: research
Evaluation of T-wave alternans in pediatric patients with chronic renal failure
Microvolt T-wave alternans (TWA) is known to be useful in prediction of ischemia and sudden death in high-risk populations and there are no studies in children with chronic renal failure (CRF). Cardiac problems seem to be responsible for an important part of death in children and young adults with CRF. The aim of this study is to evaluate Holter microvolts TWA measurements in children with CRF comparing to the control group. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 20, 2018 Category: Cardiology Authors: Olgu Hallioglu, Meryem Keceli, Gulcin Bozlu, Ali Delibas, Derya Karpuz, H üseyin Selvi Source Type: research
Narrow QRS tachycardia with extreme rightward axis. What is the mechanism?
A 25 year old lady presented with palpitation to the emergency department. Her pulse rate was 210 beats per minute. She was hemodynamically stable with a blood pressure of 100/60 mm Hg. 12 lead surface electrocardiogram (ECG) was recorded during the presentation (Fig. 1) and rhythm strip (Fig. 2A) during administration of IV adenosine. What is the likely diagnosis? (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 20, 2018 Category: Cardiology Authors: Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Ajitkumar Valaparambil Source Type: research
Double loop reentrant atrial tachycardia following ablation for atrioventricular nodal reentrant tachycardia
We report a patient with a history of multiple ablations for recurrent atrioventricular nodal reentrant tachycardia who developed an atrial tachycardia four years after his last procedure. Subsequent electroanatomical mapping demonstrated double loop macro-reentrant atrial tachycardia consistent with a roof dependent flutter and a perimitral flutter. We successfully terminated the tachycardia by targeting isthmuses at sites of prior ablation. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - April 18, 2018 Category: Cardiology Authors: Ghassen Cheniti, Masateru Takigawa, Konstantinos Vlachos, Nathaniel Thompson, Κonstantinos P. Letsas, Arnaud Denis, Michel Haissaguerre, Nicolas Derval Source Type: research
