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12 lead ecg

Lütfü Bekar, Muzaffer Katar, Mücahit Yetim, Oğuzhan Çelik, Hakan Kilci, Orhan Önalan
OBJECTIVE: Carboxy-terminal propeptide of type 1 procollagen (PICP) is a marker of extracellular collagen synthesis. Fragmented QRS (fQRS) on a 12-lead electrocardiogram (ECG) has been demonstrated as a marker of myocardial fibrosis. The present objective was to investigate the association between serum PICP concentration and presence of fQRS on ECG in hypertensive patients. METHODS: Consecutive patients with previously or newly diagnosed hypertension were included...
October 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Line Lisbeth Olesen, Andreas Andersen
AIMS: Due to the demographic development there is an increasing number of senior citizens with left ventricular systolic dysfunction (LVSD), defined as ejection fraction (EF) < 40%. Unfortunately there are under-diagnosis and under-treatment in the elderly of this serious condition. Echocardiography is the gold standard to diagnose LVSD, but access is limited. Simple screening methods may ensure reduction of undetected cases, and this study investigates if electrocardiogram (ECG) can be used to screen for LVSD in the geriatric population...
March 2016: ESC Heart Failure
Wesley T O'Neal, Kristine E Lee, Elsayed Z Soliman, Ronald Klein, Barbara E K Klein
PURPOSE: To determine the incidence and determinants of developing abnormalities on the 12-lead electrocardiogram (ECG) in persons with type 1 diabetes. METHODS: We evaluated the distribution of ECG abnormalities and risk factors for developing new abnormalities in 266 (mean age = 44 years ± 9.0; 50 % female) people with type 1 diabetes from the Wisconsin Epidemiologic Study of Diabetic Retinopathy. This analysis included participants with complete ECG data from study visit 5 (2000-2001) and follow-up ECGs from study visit 7 (2012-2014)...
October 20, 2016: Journal of Endocrinological Investigation
Jyh-Ming Jimmy Juang, Minoru Horie
In 1992, the Brugada syndrome (BrS) was recognized as a disease responsible for sudden cardiac death, characterized by a right bundle-branch block with ST segment elevation in the leads V1 and V2. This syndrome is highly associated with sudden cardiac death, especially in young males. BrS is currently diagnosed in patients with ST-segment elevation showing type 1 morphology ≥ 2 mm in ≥1 leads among the right precordial leads V1 or V2 positioned in the 2nd, 3rd, or 4th intercostal space, and occurring either spontaneously or after a provocative drug test by the intravenous administration of Class I antiarrhythmic drugs...
October 2016: Journal of Arrhythmia
Ali Eshraghi, Reyhaneh Takalloo Ebdali, Seyed Sajed Sajjadi, Reza Golnezhad
INTRODUCTION: It is believed that an exaggerated blood pressure response (EBPR) to exercise stress test is associated with a higher risk of cardiovascular events. It is also assumed that QT dispersion (QT-d), which was originally proposed to measure the spatial dispersion of ventricular recovery times, may have a relationship to cardiovascular events. The objective of this study was to examine the difference of changes in QT-d, Maxi-QT, Mini-QT, and QT-c (corrected QT interval) of the electrocardiogram in two groups of patients with exaggerated blood pressure responses (EBPR group) and normal responses (control group) to exercise testing...
August 2016: Electronic Physician
Yusuke Fujii, Hideki Itoh, Seiko Ohno, Takashi Murayama, Nagomi Kurebayashi, Hisaaki Aoki, Malorie Blancard, Yoshihisa Nakagawa, Satoshi Yamamoto, Yumie Matsui, Mari Ichikawa, Keiko Sonoda, Tomoya Ozawa, Kimie Ohkubo, Ichiro Watanabe, Pascale Guicheney, Minoru Horie
BACKGROUND: Ventricular fibrillation (VF) may be caused by premature ventricular contractions (PVCs) whose coupling intervals are under 300ms, a characteristic of scTdP. OBJECTIVE: The purpose of this study is to analyze the underlying RyR2 variants in patients with the short-coupled variant of torsade de pointes (scTdP). METHODS: Seven patients with scTdP (34±12 years old, 3 females) were enrolled in this study. The RyR2 gene was screened by targeted gene sequencing methods, and variant minor allele frequency (MAF) was confirmed in three databases, and the pathogenicity was investigated in multiple in silico tools...
October 15, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Joji Ishikawa, Ayumi Toba, Yuko Yamanaka, Shintaro Watanabe, Kazumasa Harada
OBJECTIVE: Left ventricular hypertrophy (LVH) diagnosed by Cornell product in electrocardiogram predicted future stroke events at lower thresholds in Japanese general populations than those in western countries; therefore, we thought to evaluate whether the gender-adjustment and the levels of Cornell product to detect echo LVH was appropriate in Japanese subjects. DESIGN AND METHOD: We consecutively enrolled 345 hypertensive patients who were performed echocardiography for the screening of LVH...
September 2016: Journal of Hypertension
Georgeta D Vaidean, Marta Manczuk, Jared W Magnani
OBJECTIVE: Obesity and hypertension often coexist and represent risk factors for atrial fibrillation. This study hypothesized that their single and joint effects on atrial remodeling would be reflected in the PR interval and P-wave durations on electrocardiogram (ECG). METHODS: This cross-sectional analysis of a community-based study included 11,308 men and women age 45-64. Atrial indices were obtained from digital standard 12-lead resting ECG. Analyses were adjusted for traditional cardiovascular risk factors...
October 18, 2016: Obesity
Kaylin T Nguyen, Rachel A Gladstone, Jonathan W Dukes, Babak Nazer, Eric Vittinghoff, Nitish Badhwar, Vasanth Vedantham, Edward P Gerstenfeld, Byron K Lee, Randall J Lee, Zian H Tseng, Jeffrey E Olgin, Melvin M Scheinman, Gregory M Marcus
INTRODUCTION: Atrial refractoriness may be an important determinant of atrial fibrillation (AF) risk, but its measurement is not clinically accessible. Because the QT interval predicts incident AF and the atrium and ventricle share repolarizing ion currents, we investigated the association between an individual's QT interval and atrial effective refractory period (AERP). METHODS: In paroxysmal AF patients presenting for catheter ablation, the QT interval was measured from the surface 12-lead ECG...
October 18, 2016: Pacing and Clinical Electrophysiology: PACE
Ana Abreu, Helena Santa Clara
Cardiac resynchronization therapy (CRT) is an established treatment for patients with moderate-to-severe chronic heart failure (CHF) and intraventricular conduction delay, which is identified by a QRS interval of 120msec or more on a 12-lead electrocardiogram (ECG). CRT improved functional capacity, reduced hospitalizations for worsening CHF and increased survival. However, about 30-40% of patients who underwent CRT were non-responders with no clinical or echocardiographic improvement. Imaging parameters for prediction of CRT response have been reviewed...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
Santhosh R Devarapally, Sameer Arora, Ali Ahmad, Mike Sood, Amaar El Sergany, Terrence Sacchi, Barry Saul, Rahul Gaglani, John Heitner
BACKGROUND: Right ventricular (RV) failure has proven to be independently associated with adverse outcomes. Electrocardiographic parameters assessing RV function are largely unknown, making echocardiography the first line for RV function assessment. It is however, limited by geometrical assumptions and is inferior to cardiac magnetic resonance imaging (CMRI) which is widely regarded as the most accurate tool for assessing RV function. METHODS: We seek to determine the correlation of ECG parameters of right bundle branch block (RBBB) with RV ejection fraction (EF) and RV dimensions using the CMRI...
October 2016: Cardiovascular Diagnosis and Therapy
Torsten Konrad, Sebastian Sonnenschein, Frank Patrick Schmidt, Hanke Mollnau, Karsten Bock, Blanca Quesada Ocete, Thomas Münzel, Cathrin Theis, Thomas Rostock
AIMS: Different cardiac arrhythmias have been suggested to be associated with Danon disease, e.g. Wolff-Parkinson-White syndrome. However, a systematic electrophysiological investigation of patients with Danon disease is lacking thus far. METHODS AND RESULTS: Seven patients with Danon disease (4 males, 35.8 ± 10.8 years; 3 females, 51.3 ± 19.9 years) from 3 different families were studied. In all patients, the presence of Danon disease was confirmed by western blot of biopsy material or genetic testing...
October 14, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Nathalie Behar, Bertrand Petit, Vincent Probst, Frederic Sacher, Gaelle Kervio, Jacques Mansourati, Paul Bru, Alfredo Hernandez, Philippe Mabo
AIM: Modulation of ST-segment elevation (STE) and tachyarrhythmic events by the autonomic nervous system (ANS) has been reported in patients with Brugada syndrome (BS). This study examined and compared the autonomic characteristics and STE in symptomatic vs. asymptomatic patients with BS. METHODS AND RESULT: We studied 40 symptomatic and 78 asymptomatic patients (mean age = 46.1 ± 13.7 years; 88 men) who underwent 24 h, 12-lead electrocardiograms, and exercise and a head-up tilt tests...
October 13, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Rajendra Pradeepa, Jayagopi Surendar, Karunakaran Indulekha, Sundarapandi Chella, Ranjit Mohan Anjana, Viswanathan Mohan
OBJECTIVE: The aim of this study was to assess the prevalence of metabolic syndrome (MS) and its association with coronary artery disease (CAD) among an elderly urban population in south India. METHODS: Individuals aged ≥60 years (n=222) were recruited from Phase 3 of the Chennai Urban Rural Epidemiology Study. Anthropometric and blood pressure measurements, oral glucose tolerance test, lipids and fasting insulin were carried out. Prevalence of MS was estimated using the World Health Organization (WHO), Modified National Cholesterol Education Program's Adult Treatment Panel III (ATP-III) and International Diabetes Federation (IDF) criteria...
May 2016: Journal of the Association of Physicians of India
Maura Sammon, Alveena Dawood, Scott Beaudoin, Richard A Harrigan
BACKGROUND: One of the principal tasks of an emergency physician is identifying potentially life-threatening conditions in the undifferentiated patient; cardiac dysrhythmia is an example of such a condition. A systematic approach to a patient with atypical dysrhythmia enables proper identification of such-life threatening conditions. CASE REPORT: We describe a 31-year-old man presenting to the emergency department with an undifferentiated dysrhythmia after naloxone reversal of an opiate overdose...
October 7, 2016: Journal of Emergency Medicine
Lan Chi Vo, Christopher Snyder, Courtney McCracken, Christopher J McDougle, James T McCracken, Michael G Aman, Elaine Tierney, L Eugene Arnold, Daniel Levi, Michael Kelleman, Deirdre Carroll, John Morrissey, Benedetto Vitiello, Lawrence Scahill
OBJECTIVES: Risperidone is approved for the treatment of serious behavioral problems in children with autism spectrum disorder (ASD). This study examined the effects of risperidone on cardiac conduction in children with ASD. METHODS: Data were collected from an 8-week, five-site trial conducted by the Research Units on Pediatric Psychopharmacology Autism Network. Children (age 5-17 years) were randomly assigned to risperidone (n = 49) or placebo (n = 52) under double-blind conditions...
October 11, 2016: Journal of Child and Adolescent Psychopharmacology
Yasunori Kanzaki, Yasuya Inden, Monami Ando, Yosuke Kamikubo, Tadahiro Ito, Yoshiaki Mizutani, Hiroyuki Kato, Aya Fujii, Satoshi Yanagisawa, Makoto Hirai, Toyoaki Murohara
BACKGROUNDS: Although several prognostic factors of atrial fibrillation (AF) recurrence after pulmonary vein isolation (PVI) have been investigated, the accurate prediction of AF recurrence remains difficult. We propose an ECG index, the P-wave force (PWF), which is the product of the amplitude of the negative terminal phase of the P-wave in the V1 electrode and the filtered P-wave duration (FPD), obtained by a signal-averaged P-wave analysis. This study was conducted to evaluate the impact of the PWF on the recurrence of AF after PVI...
October 10, 2016: Pacing and Clinical Electrophysiology: PACE
Anna Cichocka-Radwan, Małgorzata Lelonek
BACKGROUND: In the elderly the most common cause of hospitalization and the leading cause of death is heart failure. AIM: The purpose was to determine prognostic factors in chronic heart failure (CHF) in octogenarians and nonagenarians. METHODS: The analysis included 197 consecutive patients older than 80 years old (mean age 83.63+3.01 years; 46.19% of men) hospitalized in 2010-2013 in the Department of Cardiology due to CHF. Sixty two parameters were investigated such as: age, gender, NYHA functional class, body mass index, blood pressure, other comorbidities, the parameters of the 12-lead resting ECG and the echocardiography, the results of basic laboratory tests and selected biomarkers, including N-terminal pro-B-type natriuretic peptide (NT-proBNP), high-sensitive troponin T (hs-TnT), high-sensitive C-reactive protein (hs-CRP)...
October 7, 2016: Kardiologia Polska
Carmen Pizarro, Neele Herweg-Steffens, Martin Buchenroth, Wolfgang Schulte, Christian Schaefer, Christoph Hammerstingl, Nikos Werner, Georg Nickenig, Dirk Skowasch
BACKGROUND: In acute exacerbation of COPD, increased plasma levels of cardiac troponin are frequent and associated with increased mortality. Thus, we aimed at prospectively determining the diagnostic value of coronary angiography in patients with exacerbated COPD and concomitantly elevated cardiac troponin. PATIENTS AND METHODS: A total of 88 patients (mean age 72.9±9.2 years, 56.8% male) hospitalized for acute exacerbation of COPD with elevated plasma troponin were included...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Uğur Aksu, Kamuran Kalkan, Oktay Gülcü, Selim Topcu, Serdar Sevimli, Enbiya Aksakal, Emrah Ipek, Mahmut Açıkel, Ibrahim Halil Tanboğa
BACKGROUND: The atrioventricular (AV) dissociation, which is frequently used in differential diagnosis of wide QRS complex tachycardia (WQCT), is the most specific finding of ventricular tachycardia (VT) with lower sensitivity. Herein, we aimed to show the importance of Lewis lead ECG records to detect 'visible p waves' during WQCT. METHOD: A total of 21 consecutive patients who underwent electrophysiologic study (EPS) were included in the study. During EPS, by using a quadripolar diagnostic catheter directed to the right ventricular apex, a fixed stimulus was given and the ventriculoatrial (VA) Wenkebach point was found, and a VT was simulated by a RV apical stimulus at 300ms...
September 26, 2016: International Journal of Cardiology
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