Bradycardia: What is the mechanism?
A 70-year old female with history of diabetes, hypertension, hyperlipidemia and depression was admitted to our hospital with nausea and upper abdominal pain. Her symptoms initially started 2 months prior to this presentation when she was vacationing in Italy. She described a vague upper abdominal rash that resolved, but she continued to have sharp pain intermittently which wrapped around her abdomen. She was diagnosed to have possible shingles as an outpatient and was symptomatically managed with tramadol and gabapentin. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 7, 2018 Category: Cardiology Authors: Sunita Sharma, Ajay Sharma, Matthew F. Yuyun, Jonathan S. Silver Source Type: research
Author's response to letter to the editor from Hay ırlıoğlu M et al.
We have read with great interest the letter entitled “How can we find out the perfect admission electrocardiographic parameter to predict no-reflow?” authored by Hayırlıoğlu M et al. We would like to submit a response letter regarding their valuable and constructive criticisms. Firstly; the authors have pointed that level of electrolytes on adm ission particularly potassium could affect atrial conduction properties and its electrocardiographics reflection such as p wave duration, amplitude and p wave peak time. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 7, 2018 Category: Cardiology Authors: Metin Cagdas Source Type: research
Alternans during fascicular ventricular tachycardia due to digitalis toxicity
This report describes a digitalis-induced regular fascicular ventricular tachycardia characterized by marked QRS alternans a manifestation not usually associated with this arrhythmia. The striking alternation of QRS configuration suggested alternating ventricular activation from either a single focus with two exits in distal branches of the left anterior fascicle or 2 different foci localized in the Purkinje-myocardial network of the left anterior fascicle. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 7, 2018 Category: Cardiology Authors: S. Serge Barold Source Type: research
Defining the pattern of initiation of monomorphic ventricular tachycardia using the beat-to-beat intervals recorded on implantable cardioverter defibrillators from the RAFT study: A computer-based algorithm
Arrhythmia onset pattern may have important implications on morbidity, recurrent implantable cardioverter defibrillator (ICD) shocks, and mortality, given the proposed correlation between initiation pattern and arrhythmia mechanism. Therefore, we developed and tested a computer-based algorithm to differentiate the pattern of initiation based on the beat-to-beat intervals of the ventricular tachycardia (VT) episodes in ICD recordings from the Resynchronization-Defibrillation for Ambulatory Heart Failure Trial (RAFT). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 3, 2018 Category: Cardiology Authors: Rodrigo S. Barbosa, Leon Glass, Riccardo Proietti, Barry Burstein, Ahmed Al-Turki, Lyndon Sobolik, Zhubo Zhang, Guillaume Viart, Michelle Samuel, Alvin Shrier, Vidal Essebag Source Type: research
A case of Wolff-Parkinson-White syndrome presenting spontaneous mutual frequent transition between atrioventricular reciprocating tachycardia and atrioventricular nodal re-entrant tachycardia
This article describes a case with spontaneous, mutual, and frequent transition between AVRT and AVNRT. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 3, 2018 Category: Cardiology Authors: Hidekazu Kondo, Tetsuji Shinohara, Toyokazu Otsubo, Miho Miyoshi, Akira Fukui, Takeshi Tsuchiya, Naohiko Takahashi Source Type: research
Defining the Pattern of Initiation of Monomorphic Ventricular Tachycardia Using the Beat-to-Beat Intervals Recorded on Implantable Cardioverter Defibrillators from the RAFT Study: A Computer-Based Algorithm
Arrhythmia onset pattern may have important implications on morbidity, recurrent implantable cardioverter defibrillator (ICD) shocks, and mortality, given the proposed correlation between initiation pattern and arrhythmia mechanism. Therefore, we developed and tested a computer-based algorithm to differentiate the pattern of initiation based on the beat-to-beat intervals of the ventricular tachycardia (VT) episodes in ICD recordings from the Resynchronization-Defibrillation for Ambulatory Heart Failure Trial (RAFT). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 3, 2018 Category: Cardiology Authors: Rodrigo S. Barbosa, Leon Glass, Riccardo Proietti, Barry Burstein, Ahmed Al-Turki, Lyndon Sobolik, Zhubo Zhang, Guillaume Viart, Michelle Samuel, Alvin Shrier, Vidal Essebag Source Type: research
A Case of Wolff-Parkinson-White Syndrome Presenting Spontaneous Mutual Frequent Transition between Atrioventricular Reciprocating Tachycardia and Atrioventricular Nodal Re-entrant Tachycardia
This article describes a case with spontaneous, mutual, and frequent transition between AVRT and AVNRT. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 3, 2018 Category: Cardiology Authors: Hidekazu Kondo, Tetsuji Shinohara, Toyokazu Otsubo, Miho Miyoshi, Akira Fukui, Takeshi Tsuchiya, Naohiko Takahashi Source Type: research
New formula for defining “normal” and “prolonged” QT in patients with bundle branch block
To predict the QT interval in the presence of normal QRS for patients with left bundle branch block (LBBB). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - January 23, 2018 Category: Cardiology Authors: Lior Yankelson, Aviram Hochstadt, Ben Sadeh, Benley Pick, Ariel Finkelstein, Raphael Rosso, Sami Viskin Source Type: research
Renal denervation as a second-line option in a patient with electrical storm resistant to medical treatment and conventional radiofrequency catheter ablation
We describe a patient with coronary artery disease, mechanical aortic valve replacement, and reduced left ventricular function with recurrent ICD shocks. Despite medical treatment with beta-blocker and amiodarone, and after successful ablation of different VT morphologies in combination with substrate modification, ES could not be controlled. We performed renal denervation (RDN) to reduce arrhythmic burden. Thereafter, patient remained free from sustained and non-sustained VTs at 6-month follow-up. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - January 21, 2018 Category: Cardiology Authors: Dirk Prochnau, Matthias Hoyme Source Type: research
Total occlusion of the left main coronary artery presenting as ST-elevation myocardial infarction
An ECG pattern of widespread ST depression in six or more precordial and inferior leads, accompanied by ST-segment elevation in the aVR and/or V1 leads, is typical of the non-ST-segment elevation myocardial infarction (NSTEMI) pattern associated left main (LM) artery occlusion, but this ECG pattern is really associated with a subocclusion of the LM, or in the case that the LM was occluded with the presence of collateral circulation. There are few reports of ST-elevation myocardial infarction (STEMI) due to acute total LM occlusion. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - January 19, 2018 Category: Cardiology Authors: Yun-Tao Zhao, Hang Zhou, Ruiqi Shi, Bin Wang Source Type: research
Normal values of the ventricular gradient and QRS-T angle, derived from the pediatric electrocardiogram
Normal values of the mathematically-synthesized vectorcardiogram (VCG) are lacking for children. Therefore, the objective of this study was to assess normal values of the pediatric synthesized VCG (spatial QRS-T angle [SA] and ventricular gradient [VG]). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - January 6, 2018 Category: Cardiology Authors: Vivian P. Kamphuis, Nico A. Blom, Erik W. van Zwet, Sumche Man, Arend D.J. ten Harkel, Arie C. Maan, Cees A. Swenne Source Type: research
