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Annals of Noninvasive Electrocardiology

Tarek A N Ahmed, Amr A Abdel-Nazeer, Ayman K M Hassan, Hosam Hasan-Ali, Amr A Youssef
BACKGROUND: Arrhythmias are considered one of the major causes of death in ST elevation myocardial infarction (STEMI), particularly in the early in-hospital phase. Pre-infarction angina (PIA) has been suggested to have a protective role. OBJECTIVES: To study the difference in acute electrocardiographic findings between STEMI patients with and without PIA and to assess the in-hospital arrhythmias in both groups. MATERIAL AND METHODS: We prospectively enrolled 238 consecutive patients with STEMI...
February 9, 2019: Annals of Noninvasive Electrocardiology
Li Cui, Gary Tse, Zhiqiang Zhao, George Bazoukis, Konstantinos P Letsas, Panagiotis Korantzopoulos, Leonardo Roever, Guangping Li, Tong Liu
No abstract text is available yet for this article.
February 9, 2019: Annals of Noninvasive Electrocardiology
Nobuhiro Takasugi, Mieko Takasugi, Hiroko Goto, Takashi Kuwahara, Masanori Kawasaki, Richard L Verrier
BACKGROUND: The aim of study was to investigate effects of beta-blockade on microvolt T-wave alternans (TWA), a precursor of lethal arrhythmia, in patients with long QT syndrome (LQTS). METHODS: Eleven consecutive LQTS patients, types 1 (n = 6), 3 (n = 2), and "non-1, non-2, non-3" (n = 3) were enrolled. All patients underwent 24-hr continuous 12-lead ECG monitoring before and after initiation of beta-blockade therapy. TWA was measured using the modified moving average method...
February 6, 2019: Annals of Noninvasive Electrocardiology
Liane A Arcinas, William F McIntyre, Ashraf Farag, Dominique Kushneriuk, Brett Hiebert, Colette M Seifer
BACKGROUND: Right ventricular (RV) pacing has been associated with increased risk of pacemaker-induced cardiomyopathy, hospitalization and death among patients with implantable cardioverter defibrillators (ICDs). Little is known about its association with ventricular tachyarrhythmias. We hypothesize that RV pacing is associated with increased incidence of appropriate ICD shocks and death. METHODS: Retrospective study of consecutive patients with de novo ICD insertion (excluding cardiac resynchronization therapy devices) from a single tertiary care center...
February 5, 2019: Annals of Noninvasive Electrocardiology
Veerawat Nomsawadi, Rungroj Krittayaphong
BACKGROUND: Presence of left ventricular hypertrophy (LVH) increases the risk for cardiovascular event. Many electrocardiographic (ECG) criteria can be used to diagnose LVH; however, high body mass index (BMI) may reduce ECG amplitudes.The aim of this study was to investigate the diagnostic performance of ECG criteria for diagnosing LVH among various BMI groups compared to diagnosis by cardiac magnetic resonance (CMR) imaging. METHODS: Patients who were referred for CMR were enrolled...
February 5, 2019: Annals of Noninvasive Electrocardiology
Juan Lacalzada-Almeida, María Manuela Izquierdo-Gómez, Javier García-Niebla, Roberto Elosua, Alejandro Jiménez-Sosa, Adrian Baranchuk, Antonio Bayes de Luna
BACKGROUND: The association between advanced interatrial block (aIAB) and atrial fibrillation (AF) is known as "Bayes' Syndrome." There is little information on the prognostic role that new speckle tracking echocardiographic (STE) imaging techniques could play in it. We have examined the relationship between left atrial (LA) STE and the prediction of new-onset AF and/or stroke in IAB patients. METHODS: This is an observational prospective and unicentric cohort study with 98 outpatients: 55 (56...
February 5, 2019: Annals of Noninvasive Electrocardiology
Enes E Gul, Sohaib Haseeb, Reda Abuelatta, Adrian Baranchuk
No abstract text is available yet for this article.
February 5, 2019: Annals of Noninvasive Electrocardiology
Ching-Hui Sia, Mayank Dalakoti, Benjamin Y Q Tan, Edward C Y Lee, Xiayan Shen, Kangjie Wang, Joshua S Lee, Shalini Arulanandam, Weien Chow, Tee Joo Yeo, Khung Keong Yeo, Terrance S J Chua, Ru San Tan, Carolyn S P Lam, Daniel T T Chong
BACKGROUND: Routine use of pre-participation electrocardiograms (ECGs) has been used by the Singapore Armed Forces, targeting early detection of significant cardiac diseases. We aim to describe the impact of demographic and anthropometric factors on ECG variables and establish a set of electrocardiographic reference ranges specific to a young male multiethnic Southeast Asian cohort. METHODS AND RESULTS: Between November 1, 2009, and December 31, 2014, 144,346 young male conscripts underwent pre-participation screening that included a 12-lead ECG, demographic and anthropometric measurements...
February 1, 2019: Annals of Noninvasive Electrocardiology
Ryan Chow, Javad Hashemi, Sami Torbey, Johnny Siu, Benedict Glover, Adrian M Baranchuk, Hoshiar Abdollah, Christopher Simpson, Selim Akl, Damian P Redfearn
BACKGROUND: Current noninvasive risk stratification methods offer limited prediction of arrhythmic events when selecting patients for ICD implantation. Our laboratory has recently developed a signal processing metric called Layered Symbolic Decomposition frequency (LSDf) that quantifies the percentage of hidden QRS wave frequency components in signal-averaged ECG (SAECG) recordings. The purpose of this pilot study was to determine whether LSDf can be predictive of ventricular arrhythmia or death in an ICD patient cohort...
January 28, 2019: Annals of Noninvasive Electrocardiology
Michalina Krych, Joanna Ponińska, Zofia T Bilińska, Rafał Płoski, Elżbieta K Biernacka
We report on a 44-year-old woman with coincidence of two genetic disorders: Andersen-Tawil syndrome and Marfan syndrome. In both, life-threatening arrhythmias could occur. A 44-year-old woman presented acute ascending aortic dissection with aortic arch involvement and chronic thoracic descending and abdominal aortic dissection. Clinical and genetic examination confirmed Marfan syndrome (MFS) diagnosis. Due to repolarization disorder in ECG and premature ventricular contractions in Holter ECG, the sequencing data were analyzed again and mutation in KCNJ2 gene was identified...
January 23, 2019: Annals of Noninvasive Electrocardiology
Muhammad Ali Anees, Muhammad Imtiaz Ahmad, Parag A Chevli, Yabing Li, Elsayed Z Soliman
OBJECTIVE: Electrocardiographic markers of left atrial (LA) abnormalities are linked to increased risk of cardiovascular disease (CVD). We examined the relationship of vitamin D deficiency with prolonged P wave duration and PR interval as markers of LA abnormalities. METHODS: This analysis included 5,894 participants (58.12 ± 12.9 years; 54.7% women; 49.8% non-Hispanic Whites) without clinical CVD from NHANES III. A multivariable logistic regression model was used to examine the association of vitamin D categories (<20 ng/ml, 20-29 ng/ml and >30 ng/ml (reference) with prolonged P wave duration (≥120 ms) and PR interval (≥200 ms)...
January 19, 2019: Annals of Noninvasive Electrocardiology
Burak Hunuk, Carlo de Asmundis, Giacomo Mugnai, Vedran Velagic, Erwin Ströker, Darragh Moran, Diego Ruggiero, Ebru Hacioglu, Vincent Umbrain, Christian Verborgh, Stefan Beckers, Jan Poelaert, Pedro Brugada, Gian-Battista Chierchia
BACKGROUND: Early repolarization patterns (ERP) have been found to be associated with poor cardiovascular end points. We aimed to evaluate the ERP prevalence among patients with structurally normal hearts undergoing radiofrequency (RF) pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (AF) ablation and its association with the AF recurrence. METHODS: All consecutive patients who underwent RF-PVI as index procedure for paroxysmal AF in our center were evaluated...
January 19, 2019: Annals of Noninvasive Electrocardiology
Firdevs Aysenur Ekizler, Serkan Cay, Habibe Kafes, Ozcan Ozeke, Firat Ozcan, Serkan Topaloglu, Ahmet Temizhan, Dursun Aras
BACKGROUND: Peripartum cardiomyopathy (PPCM) is an uncommon complication of pregnancy. Clinical courses of PPCM are markedly heterogeneous. Positive T waves in lead aVR (TaVR) are shown to be associated with adverse cardiac events in several cardiovascular diseases. We aimed to investigate the prevalence and prognostic role of positive TaVR in patients with PPCM. METHODS: A total of 82 patients (mean age 29.1 ± 6.3 years) with the diagnosis of PPCM were enrolled...
January 17, 2019: Annals of Noninvasive Electrocardiology
Emrah Bozbeyoğlu, Emre Aslanger, Özlem Yıldırımtürk, Barış Şimşek, Burak Hünük, Can Yücel Karabay, Ömer Kozan, Muzaffer Değertekin
BACKGROUND: The currently used scheme for the classification of infarct location and extent in anterior myocardial infarction (MI) is intuitive rather than being evidence-based, and recent evidence suggests that it may be misleading both in anatomic and prognostic sense. MATERIAL AND METHODS: Consecutive patients with the diagnosis of anterior MI were enrolled. All electrocardiograms (ECG) were first classified according to established scheme and then reassessed using newer criteria for angiographic site of occlusion...
January 11, 2019: Annals of Noninvasive Electrocardiology
Omer Faruk Cirakoglu, Ahmet Oğuz Aslan, Ali Riza Akyuz, Selim Kul, Sinan Şahin, Levent Korkmaz, Muhammet Raşit Sayın
BACKGROUND AND AIM: New-onset atrial fibrillation (NOAF) has been associated with poor outcome in patients with acute coronary syndromes (ACS). Also, Syntax score (SS) is a scoring system that is derived from angiographic images and is associated with long-term mortality and major adverse cardiac events. In this study, we aimed to assess the relationship between SS and NOAF with known predictors of atrial fibrillation. METHODS: In a prospective, single-center, cross-sectional study, 692 patients who were diagnosed with coronary artery disease for the first time were enrolled consecutively...
January 7, 2019: Annals of Noninvasive Electrocardiology
Tommy Dharmawan, Tadashi Nakajima, Seiko Ohno, Takashi Iizuka, Shuntaro Tamura, Yoshiaki Kaneko, Minoru Horie, Masahiko Kurabayashi
BACKGROUND: RYR2, encoding cardiac ryanodine receptor, is the major responsible gene for catecholaminergic polymorphic ventricular tachycardia (CPVT). Meanwhile, KCNJ2, encoding inward-rectifier potassium channel (IK1 ), can be the responsible gene for atypical CPVT. We recently encountered a family with CPVT and sought to identify a responsible gene variant. METHODS: A targeted panel sequencing (TPS) was employed in the proband. Copy number variation (CNV) in RYR2 was identified by focusing on read numbers in the TPS and long-range PCR...
January 7, 2019: Annals of Noninvasive Electrocardiology
Liane A Arcinas, William F McIntyre, Christopher J Hayes, Omar A Ibrahim, Adrian M Baranchuk, Colette M Seifer
BACKGROUND: An implantable loop recorder (ILR) assists in the diagnosis of unexplained syncope and atrial fibrillation (AF). Both become prevalent with age. Limited data exist describing the incidence of AF as the diagnostic rhythm underlying syncope in the elderly. This study aims to report the incidence of AF in older adults with ILRs for unexplained syncope and identify clinical characteristics associated with AF in this population. METHODS: Retrospective observational study on patients with unexplained syncope seen in syncope clinics from two Canadian centers...
January 7, 2019: Annals of Noninvasive Electrocardiology
Narut Prasitlumkum, Chanavuth Kanitsoraphan, Veraprapas Kittipibul, Kittika Poonsombudlert, Nath Limpruttidham, Pattara Rattanawong, Pakawat Chongsathidkiet
INTRODUCTION: Contrast-induced nephropathy (CIN) is associated with increased cardiovascular morbidity and mortality in patients with acute coronary syndrome (ACS). Recent studies suggest that CIN is associated with new-onset atrial fibrillation (AF) in patients with acute coronary syndrome (ACS) who underwent catheterization. However, a systematic review and meta-analysis of the literature have not been done. We assessed the association between CIN in patients with ACS and new-onset AF by a systematic review of the literature and a meta-analysis...
January 7, 2019: Annals of Noninvasive Electrocardiology
Charlotte Stephansen, Mads Brix Kronborg, Christoffer Tobias Witt, Jens Kristensen, Christian Gerdes, Anders Sommer, Jesper Møller Jensen, Jens Cosedis Nielsen
BACKGROUND: QRS narrowing after CRT is a predictor of patient outcome. Further narrowing can be obtained by interventricular pacing delay (VVd) optimization, raising interest to inter and intraobserver variation in manual measurements of QRS duration. METHODS: (a) Variation in intrinsic rhythm QRS duration in CRT patients with LBBB: In 40 intrinsic 12-lead ECGs, six observers measured QRS duration defined as widest QRS in any lead. In 20 of these ECGs, two observers repeated the measurements...
December 6, 2018: Annals of Noninvasive Electrocardiology
Wibke Reinhard, Teresa Trenkwalder, Bernhard Haller, Christine Meindl, Julia Schoenfeld, Bernhard M Kaess, Christian Hengstenberg, Heribert Schunkert, Axel Pressler, Martin Halle, Johannes Scherr
BACKGROUND: The electrocardiographic early repolarization (ER) pattern is associated with idiopathic ventricular fibrillation and increased long-term cardiovascular mortality. Whether structural cardiac aberrations influence the phenotype is unclear. Since ER is particularly common in athletes, we evaluated its prevalence and investigated predisposing echocardiographic characteristics and cardiopulmonary exercise capacity in a cohort of elite athletes. METHODS: A total of 623 elite athletes (age 21 ± 5 years) were examined during annual preparticipation screening from 2006 until 2012 including electrocardiography, echocardiography, and exercise testing...
November 14, 2018: Annals of Noninvasive Electrocardiology
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