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Annals of Noninvasive Electrocardiology

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https://www.readbyqxmd.com/read/28639350/response-to-letter-novel-electrocardiographic-indices-of-arrhythmogenesis-and-blood-lead-level
#1
LETTER
Ugur Nadir Karakulak, Engin Tutkun
No abstract text is available yet for this article.
June 21, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28618169/ecg-derived-cheyne-stokes-respiration-and-periodic-breathing-in-healthy-and-hospitalized-populations
#2
Adelita Tinoco, Barbara J Drew, Xiao Hu, David Mortara, Bruce A Cooper, Michele M Pelter
BACKGROUND: Cheyne-Stokes respiration (CSR) has been investigated primarily in outpatients with heart failure. In this study we compare CSR and periodic breathing (PB) between healthy and cardiac groups. METHODS: We compared CSR and PB, measured during 24 hr of continuous 12-lead electrocardiographic (ECG) Holter recording, in a group of 90 hospitalized patients presenting to the emergency department with symptoms suggestive of acute coronary syndrome (ACS) to a group of 100 healthy ambulatory participants...
June 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28618061/electrical-storm-in-a-patient-with-duchenne-muscular-dystrophy-cardiomyopathy-triggered-by-abrupt-%C3%AE-blocker-interruption
#3
Nikolaos Fragakis, Melani Sotiriadou, Lydia Krexi, Vassilios Vassilikos
We present a case of a young man with Duchenne muscular dystrophy cardiomyopathy (DMDC) having an implantable cardioverter defibrillator for secondary prevention, who presented with electrical storm shortly after β-blocker interruption. The patient was stabilized and remained free of ventricular arrhythmias soon after reinitiating b-adrenoreceptor antagonists. The present case highlights the importance of sympathetic blockage in patients with DMDC due to existing pathophysiology of excess diastolic Ca(2+) leak from sarcoplasmic reticulum as a result of ryanodine receptor dysfunction...
June 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28608483/brugada-syndrome-brugada-phenocopy-or-none
#4
Umut Kocabas, Can Hasdemir, Esra Kaya, Cuneyt Turkoglu, Adrian Baranchuk
Brugada syndrome is a form of inherited arrhythmia syndrome characterized by a distinct ST-segment elevation in the right precordial leads. Brugada phenocopies are clinical entities that present with an electrocardiographic pattern identical to Brugada syndrome and may obey to various clinical conditions. We present a case of a suicidal attempt using a high dose of propafenone causing a Brugada-type electrocardiographic pattern. Is this a Brugada syndrome case, a Brugada phenocopy or something else?
June 13, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28593735/new-insights-into-the-clinical-signs-of-supraventricular-tachycardia-the-sign-of-lace-tying
#5
Dominique Blommaert, Fabien Dormal, Olivier Deceuninck, Olivier Xhaet, Elisabeth Ballant, Luc De Roy
BACKGROUND: Supraventricular tachycardias (SVT) are a common arrhythmia therefore an accurate diagnosis is of clinical importance. Although an ECG performed during tachycardia greatly aids diagnosis, patient history and predisposing factors also improve diagnostic accuracy. METHODS: This prospective study included 100 consecutive patients undergoing electrophysiological study for SVT with the aim to reassess their clinical characteristics and describe frequent predisposing factors, such as the "sign of lace-tying" that to our knowledge has not previously been reported...
June 8, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28593660/inhibition-of-left-ventricular-stimulation-due-to-left-ventricular-lead-failure-and-the-left-ventricular-t-wave-protection-algorithm-in-patient-with-cardiac-resynchronization-therapy-and-pacemaker-dependency
#6
Andrzej Ząbek, Barbara Małecka, Maciej Dębski, Krzysztof Boczar, Jacek Lelakowski
The electrocardiogram (ECG) interpretation in patients with cardiac resynchronization therapy (CRT) is often a perplexing problem. The difficulty in the device evaluation increases in the presence of unfamiliar timing cycles and a lead dysfunction. Authors describe a special function of a Biotronik CRT devices called the left ventricle T-wave protection (LVTP), and demonstrate its behavior in a patient with left ventricular (LV) lead failure. This report shows that sometimes it might be difficult to understand the loss of resynchronization in 12-lead ECG when LVTP feature is on, and a malfunction of left ventricular lead sensing occurs...
June 8, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28590043/effects-of-intranasal-kinetic-oscillation-stimulation-on-heart-rate-variability
#7
Markus Jerling, Iwona Cygankiewicz, Nabil Al-Tawil, Borje Darpo, Anders Ljungström, Wojciech Zareba
BACKGROUND: Kinetic oscillation stimulation in the nasal cavity (KOS) has been shown to have positive symptomatic effects in subjects with non-allergic rhinitis and in patients with migraine. METHODS: To evaluate the effect of KOS on autonomic function, we assessed heart rate variability (HRV) in this small exploratory study in 12 healthy subjects. KOS treatment was performed using a minimally invasive system with a single-use catheter inserted into the nasal cavity...
June 7, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28590042/changes-in-arrhythmogenic-properties-and-five-year-prognosis-after-carbon-ion-radiotherapy-in-patients-with-mediastinum-cancer
#8
Mari Amino, Koichiro Yoshioka, Makiyoshi Shima, Tohru Okada, Mio Nakajima, Yoshiya Furusawa, Shigetaka Kanda, Sadaki Inokuchi, Teruhisa Tanabe, Yuji Ikari, Tadashi Kamada
INTRODUCTION: Carbon-ion irradiation of rabbit hearts has improved left ventricular conduction abnormalities through upregulation of gap junctions. However, to date, there has been no investigation on the effect of carbon-ion irradiation on electrophysiological properties in human. We investigated this effect in patients with mediastinum extra-cardiac cancer treated with carbon-ion radiotherapy that included irradiating the heart. METHODS AND RESULTS: In April-December 2009, eight patients were prospectively enrolled (including two male, aged 72...
June 7, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28590020/qt-interval-measurements-in-patients-with-left-bundle-branch-block-there-is-yet-more-to-learn-about-repolarization
#9
LETTER
Harilaos Bogossian, Gerrit Frommeyer, Markus Zarse
No abstract text is available yet for this article.
June 7, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28590018/reply-to-letter-to-the-editor-is-obesity-related-to-postexercise-cardiac-autonomic-recovery
#10
LETTER
Sahar M El Agaty, Azra Kirmani, Ezaz Labban
No abstract text is available yet for this article.
June 7, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28557343/progression-of-early-repolarization-patterns-at-a-four-year-follow-up-in-a-female-flight-crew-population-implications-for-aviation-medicine
#11
Gwénolé Rohel, Eric Perrier, Aurélien Delluc, Jonathan Monin, Olivier Manen, Philippe Paule, Marie Piquemal, Jacques Mansourati, Ulric Vinsonneau
BACKGROUND: To assess the prevalence, the appearance, and the distribution, as well as the fluctuation over time of early repolarization patterns after four years in a female population derived from the French aviation sector. METHODS: This was a retrospective longitudinal study from 1998 to 2010 of a population of female employees who received a full clinical examination and an electrocardiogram (ECG) upon their recruitment and after a period of four years. RESULTS: A total of 306 women were included (average of 25...
May 30, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28557338/coronary-sinus-lead-delay-index-for-optimization-of-coronary-sinus-lead-placement
#12
Mevlüt Koç, Onur Kaypakli, Gökhan Gözübüyük, Durmus Yıldıray Şahin
AIM: Optimization of coronary sinus (CS) lead position to the latest activated left ventricular (LV) area is important to increase cardiac resynchronization therapy (CRT) response. We aimed to detect the relationship between coronary sinus lead delay index (CSDI) and echocardiographic, electrocardiographic response to CRT treatment. METHODS: We prospectively included 137 consecutive patients with heart failure (HF) diagnosis, QRS ≥ 120 ms, left bundle branch block (LBBB), New York Heart Association score (NYHA) II-IV, LV ejection fraction (LVEF) <35% and scheduled for CRT (84 male, 53 female; mean age 65...
May 30, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28557290/repetitive-ventricular-tachycardia-in-a-syncopal-child-cause-or-incidental-finding
#13
Martial Massin, Caroline Jacquemart, Karim Khaldi
A 15-year-old girl suffered recurrent syncopal episodes during 7 years. Events were precipitated by exercise or emotional stress, leading to the diagnosis of reflex syncope. Exercise testing induced recurrent salvos of nonsustained right ventricular outflow tract tachycardia. This arrhythmia is often asymptomatic, reflex syncope is very frequent and both causes are related to the same triggering situations. It was therefore essential to obtain recordings during syncopal events and to observe the clinical evolution under effective treatment in order to make the right diagnosis...
May 30, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28517367/rationale-and-design-of-a-randomized-trial-to-assess-the-safety-and-efficacy-of-multipoint-pacing-mpp-in-cardiac-resynchronization-therapy-the-mpp-trial
#14
Gery Tomassoni, James Baker, Raffaele Corbisiero, Charles Love, David Martin, Robert Sheppard, Seth J Worley, Kwangdeok Lee, Imran Niazi
BACKGROUND: Although the majority of Class III congestive heart failure (HF) patients treated with cardiac resynchronization therapy (CRT) show a clinical benefit, up to 40% of patients do not respond to CRT. This paper reports the design of the MultiPoint Pacing (MPP) trial, a prospective, randomized, double-blind, controlled study to evaluate the safety and efficacy of CRT using MPP compared to standard biventricular (Bi-V) pacing. METHODS: A maximum of 506 patients with a standard CRT-D indication will be enrolled at up to 50 US centers...
May 18, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28510313/categorization-and-theoretical-comparison-of-quantitative-methods-for-assessing-qt-rr-hysteresis
#15
REVIEW
Hugo Gravel, Daniel Curnier, Nagib Dahdah, Vincent Jacquemet
BACKGROUND: In the human electrocardiogram, there is a lag of adaptation of the QT interval to heart rate changes, usually termed QT/RR hysteresis (QT-hys). Subject-specific quantifiers of QT-hys have been proposed as potential biomarkers, but there is no consensus on the choice of the quantifier. METHODS: A comprehensive literature search was conducted to identify original articles reporting quantifiers of repolarization hysteresis from the surface ECG in humans...
May 16, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28508439/conventional-and-right-sided-screening-for-subcutaneous-icd-in-a-population-with-congenital-heart-disease-at-high-risk-of-sudden-cardiac-death
#16
Pau Alonso, Joaquín Osca, Joaquín Rueda, Oscar Cano, Pedro Pimenta, Ana Andres, María José Sancho, Luis Martinez
BACKGROUND: Information regarding suitability for subcutaneous defibrillator (sICD) implantation in tetralogy of Fallot (ToF) and systemic right ventricle is scarce and needs to be further explored. The main objective of our study was to determine the proportion of patients with ToF and systemic right ventricle eligible for sICD with both, standard and right-sided screening methods. Secondary objectives were: (i) to study sICD eligibility specifically in patients at high risk of sudden cardiac death, (ii) to identify independent predictors for sICD eligibility, and (iii) to compare the proportion of eligible patients in a nonselected ICD population...
May 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28497888/gender-equity-imbalance-in-electrocardiology-a-call-to-action
#17
EDITORIAL
Erica Clarke Whalen, Grace Xu, Iwona Cygankiewicz, Ljuba Bacharova, Wojciech Zareba, Jonathan S Steinberg, Larisa G Tereshchenko, Adrian Baranchuk
No abstract text is available yet for this article.
May 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28497865/predictors-and-implications-of-early-left-ventricular-ejection-fraction-improvement-in-new-onset-idiopathic-nonischemic-cardiomyopathy-with-narrow-qrs-complex-a-neolith-substudy
#18
Norman C Wang, Evan C Adelstein, Sandeep K Jain, Stuart G Mendenhall, Alaa A Shalaby, Andrew H Voigt, Samir Saba
BACKGROUND: Predictors and implications of early left ventricular ejection fraction (LVEF) improvement with guideline-directed medical therapy (GDMT) in new-onset idiopathic nonischemic cardiomyopathy (NICM) with narrow QRS complex are not well described. The objectives were to describe predictors of LVEF improvement after 3 months on GDMT and adverse cardiac events based on post-GDMT LVEF status (≤35% vs. >35%). METHODS: A retrospective cohort study was performed in subjects with new-onset NICM, LVEF ≤35%, and narrow QRS complex...
May 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28497860/intermittent-preexcitation-indicates-a-low-risk-accessory-pathway-time-for-a-paradigm-shift
#19
Marek Jastrzębski, Piotr Kukla, Maciej Pitak, Andrzej Rudziński, Adrian Baranchuk, Danuta Czarnecka
We report three patients with intermittent loss of the preexcitation pattern in the ECG that had undergone an electrophysiological study. Despite apparently poorly conducting accessory pathway (AP), in each case a fast anterograde conduction, either during spontaneous atrial fibrillation or during incremental atrial pacing (on isoproterenol) was documented; shortest preexcited RR intervals of 200-240 ms were observed. We review the literature and conclude that intermittent preexcitation observed on resting 12-lead ECG lacks sufficient specificity for the diagnosis of an AP with long refractory period and cannot be considered a substitute for electrophysiological study in patients with this electrocardiographical phenomenon...
May 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28497858/beat-to-beat-ecg-restitution-a-review-and-proposal-for-a-new-biomarker-to-assess-cardiac-stress-and-ventricular-tachyarrhythmia-vulnerability
#20
REVIEW
Anthony A Fossa
BACKGROUND: Cardiac restitution is the ability of the heart to recover from one beat to the next. Ventricular arrhythmia vulnerability can occur when the heart does not properly adjust to sudden changes in rate or in hemodynamics leading to excessive temporal and/or spatial heterogeneity in conduction or repolarization. Restitution has historically been used to study, by invasive means, the dynamics of the relationship between action potential duration (APD) and diastolic interval (DI) in sedated subjects using various pacing protocols...
May 12, 2017: Annals of Noninvasive Electrocardiology
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