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Electrocardiographic Strain

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https://www.readbyqxmd.com/read/30542082/cornell-product-in-an-electrocardiogram-is-related-to-reduced-lv-regional-wall-motion
#1
Joji Ishikawa, Yuko Yamanaka, Shintaro Watanabe, Ayumi Toba, Kazumasa Harada
Electrocardiographic left ventricular hypertrophy (LVH) diagnosed by Cornell product and the Sokolow-Lyon voltage are associated with anatomical LVH; therefore, we investigated whether Cornell product and the Sokolow-Lyon voltage were associated with echocardiographic regional wall motion (measured by 2D-strain imaging). We reviewed data on 288 consecutive hypertensive patients who underwent both echocardiography and electrocardiography. Electrocardiographic LVH was calculated as follows: Cornell voltage, S in lead V3 + R in lead aVL; Cornell product, Cornell voltage (+0...
December 12, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/30497761/novel-electrocardiographic-features-in-carriers-of-hypertrophic-cardiomyopathy-causing-sarcomeric-mutations
#2
Mikko Jalanko, Tiina Heliö, Pirjo Mustonen, Jorma Kokkonen, Heini Huhtala, Mika Laine, Pertti Jääskeläinen, Mika Tarkiainen, Kirsi Lauerma, Petri Sipola, Markku Laakso, Johanna Kuusisto, Kjell Nikus
OBJECTIVES: The sensitivity and specificity of the conventional 12-lead ECG to identify carriers of hypertrophic cardiomyopathy (HCM) - causing mutations without left ventricular hypertrophy (LVH) has been limited. We assessed the ability of novel electrocardiographic parameters to improve the detection of HCM mutation carriers. METHODS: We studied 140 carriers (G+) of the TPM1-Asp175Asn or MYBPC3-Gln1061X pathogenic variants for HCM: The G+/LVH+ group (n = 98) consisted of mutation carriers with LVH and the G+/LVH- group (n = 42) without LVH...
November 2018: Journal of Electrocardiology
https://www.readbyqxmd.com/read/30309629/nonspecific-electrocardiographic-abnormalities-are-associated-with-increased-length-of-stay-and-adverse-cardiac-outcomes-in-prehospital-chest-pain
#3
Diana Rivero, Mohammad Alhamaydeh, Ziad Faramand, Mohammad Alrawashdeh, Christian Martin-Gill, Clifton Callaway, Barbara Drew, Salah Al-Zaiti
BACKGROUND: Nonspecific ST-T repolarization (NST) abnormalities alter the ST-segment for reasons often unrelated to acute myocardial ischemia, which could contribute to misdiagnosis or inappropriate treatment. We sought to define the prevalence of NST patterns in patients with chest pain and evaluate how such patterns correlate with the eventual etiology of chest pain and course of hospitalization. METHODS: This was a prospective observational study that included consecutive prehospital chest pain patients from three tertiary care hospitals in the U...
October 8, 2018: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/30219394/systolic-stretch-characterizes-the-electromechanical-substrate-responsive-to-cardiac-resynchronization-therapy
#4
John Gorcsan, Christopher P Anderson, Bhupendar Tayal, Masataka Sugahara, John Walmsley, Randall C Starling, Joost Lumens
OBJECTIVES: In this study, the authors tested the hypotheses that the systolic stretch index (SSI) developed by computer modeling and applied using echocardiographic strain imaging may characterize the electromechanical substrate predictive of outcome following cardiac resynchronization therapy (CRT). They included patients with QRS width 120 to 149 ms or non-left bundle branch block (LBBB), where clinical uncertainty for CRT exists. They further tested the hypothesis that global longitudinal strain (GLS) has additional prognostic value...
September 12, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/30092956/clinical-diagnosis-imaging-and-genetics-of-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-jacc-state-of-the-art-review
#5
REVIEW
Estelle Gandjbakhch, Alban Redheuil, Françoise Pousset, Philippe Charron, Robert Frank
Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is an inherited cardiomyopathy that can lead to sudden cardiac death and heart failure. Our understanding of its pathophysiology and clinical expressivity is continuously evolving. The diagnosis of ARVC/D remains particularly challenging due to the absence of specific unique diagnostic criteria, its variable expressivity, and incomplete penetrance. Advances in genetics have enlarged the clinical spectrum of the disease, highlighting possible phenotypes that overlap with arrhythmogenic dilated cardiomyopathy and channelopathies...
August 14, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/30072131/prognostic-implication-of-electrocardiographic-left-ventricular-strain-in-patients-who-underwent-transcatheter-aortic-valve-implantation
#6
Mohammed Al-Hijji, Mohamad Alkhouli, Fahad Alqahtani, Vuyisile T Nkomo, Kevin L Greason, David R Holmes
Electrocardiographic (ECG) strain has been linked to excess cardiovascular morbidity and mortality in asymptomatic patients with aortic stenosis. We aim to determine the differential impact of baseline ECG-strain on long-term mortality after transcatheter aortic valve implantation (TAVI). Patients who underwent TAVI from January 2012 to March 2016 at Mayo Clinic were included. Left ventricular (LV) strain was defined as the presence of ≥1mm convex ST-segment depression with asymmetrical T-wave inversion in leads V5 to V6 on baseline ECG...
June 21, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/30037422/predicting-outcomes-in-patients-with-asymptomatic-moderate-to-severe-aortic-stenosis
#7
Robert C Bahler, Riem Hawi, Aleksandr Rovner, Robert S Finkelhor, Charles L Thomas, Neal V Dawson
Outcomes in asymptomatic patients with aortic stenosis (AS) have been reported primarily from tertiary centers. Whether observations from a community hospital cohort would be similar or if clinical variables would assume a more important role remains uncertain. This retrospective cohort study from one community hospital followed asymptomatic patients with moderate to severe AS for 3 years following an index echocardiogram. Patients underwent standard echocardiographic imaging and assessment of AS severity...
June 4, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/30031702/prediction-of-life-threatening-ventricular-arrhythmia-in-patients-with-arrhythmogenic-cardiomyopathy-a-primary-prevention-cohort-study
#8
Øyvind H Lie, Christine Rootwelt-Norberg, Lars A Dejgaard, Ida Skrinde Leren, Mathis K Stokke, Thor Edvardsen, Kristina H Haugaa
OBJECTIVES: This study aimed to identify clinical, electrocardiographic (ECG) and cardiac imaging predictors of first-time life-threatening ventricular arrhythmia in patients with arrhythmogenic cardiomyopathy (AC). BACKGROUND: The role of clinical, electrocardiographic, and cardiac imaging parameters in risk stratification of patients without ventricular arrhythmia is unclear. METHODS: We followed consecutive AC probands and mutation-positive family members with no documented ventricular arrhythmia from time of diagnosis to first event...
October 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29978770/investigation-of-myocardial-dysfunction-using-three-dimensional-speckle-tracking-echocardiography-in-a-genetic-positive-hypertrophic-cardiomyopathy-chinese-family
#9
Jing Wang, Rui-Qi Guo, Jian-Ying Guo, Lei Zuo, Chang-Hui Lei, Hong Shao, Li-Feng Wang, Yan-Min Zhang, Li-Wen Liu
BACKGROUND: We previously reported four heterozygous missense mutations of MYH7, KCNQ1, MYLK2, and TMEM70 in a single three-generation Chinese family with dual Long QT and hypertrophic cardiomyopathy phenotypes for the first time. However, the clinical course among the family members was various, and the potential myocardial dysfunction has not been investigated. OBJECTIVES: The objective of this study was to investigate the echocardiographic and electrocardiographic characteristics in a genetic positive Chinese family with hypertrophic cardiomyopathy and further to explore the association between myocardial dysfunction and electric activity, and the identified mutations...
September 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29944173/renalase-is-associated-with-adverse-left-atrial-remodelling-and-disease-burden-in-patients-with-atrial-fibrillation-undergoing-pulmonary-vein-isolation
#10
Maciej T Wybraniec, Joanna Wieczorek, Iwona Woźniak-Skowerska, Andrzej Hoffmann, Seweryn Nowak, Małgorzata Cichoń, Krzysztof Szydło, Anna Wnuk-Wojnar, Jerzy Chudek, Andrzej Więcek, Katarzyna Mizia-Stec
BACKGROUND: Renalase is a catecholamine-metabolising enzyme, but its possible association with atrial fibrillation (AF) remains unknown. AIM: We sought to evaluate plasma renalase concentration in patients with AF undergoing pulmonary vein isolation (PVI) with respect to AF clinical characteristics, left atrial (LA) remodelling, and PVI efficacy. METHODS: This case-control study included 69 patients (median age 58 years) with either paroxysmal (89%) or persistent (11%) AF, referred for PVI, and a control group consisting of 15 patients without AF, matched for age, sex, and comorbidi-ties...
2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29878973/four-ecg-left-ventricular-hypertrophy-criteria-and-the-risk-of-cardiovascular-events-and-mortality-in-patients-with-vascular-disease
#11
Monique E A M van Kleef, Frank L J Visseren, Joris W P Vernooij, Hendrik M Nathoe, Maarten-Jan M Cramer, Remy H H Bemelmans, Yolanda van der Graaf, Wilko Spiering
OBJECTIVE: The relation between different electrocardiographic left ventricular hypertrophy (ECG-LVH) criteria and cardiovascular risk in patients with clinical manifest arterial disease is unclear. Therefore, we determined the association between four ECG-LVH criteria: Sokolow-Lyon, Cornell product, Cornell/strain index and Framingham criterion; and risk of cardiovascular events and mortality in this population. METHODS: Risk of cardiovascular events was estimated in 6913 adult patients with clinical manifest arterial disease originating from the Secondary Manifestations of ARTerial disease (SMART) cohort...
September 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29791574/applicability-of-longitudinal-strain-of-left-ventricle-in-unstable-angina
#12
Natasha Soares Simões Dos Santos, Andrea de Andrade Vilela, Rodrigo Bellio de Mattos Barretto, Marcela Paganelli do Vale, Mariana Oliveira Rezende, Murilo Castro Ferreira, Alexandre José Aguiar Andrade, Nelson Henrique Goes Scorsioni, Olívia Ximenes de Queiroga, David Le Bihan
BACKGROUND: Unstable angina (UA) is a common cause of hospital admission; risk stratification helps determine strategies for treatment. OBJECTIVE: To determine the applicability of two-dimensional longitudinal strain (SL2D) for the identification of myocardial ischemia in patients with UA. METHODS: Cross-sectional, descriptive, observational study lasting 60 days. The sample consisted of 78 patients, of which fifteen (19.2%) were eligible for longitudinal strain analysis...
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29759615/enhancing-response-in-the-cardiac-resynchronization-therapy-patient-the-3b-perspective-bench-bits-and-bedside
#13
REVIEW
Angelo Auricchio, Frits W Prinzen
Cardiac resynchronization therapy (CRT) is an established nonpharmacological treatment for patients with heart failure (HF), reduced left ventricular (LV) ejection fraction, and a wide QRS complex. Although the therapy was developed 30 years ago and approved by the Food and Drug Administration in 2001, attempts to improve it have never stopped. Such improvements have been facilitated by combining knowledge from bench (basic science), bits (computer modeling), and bedside (clinical studies); these issues are addressed in the present review...
November 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29746871/discrete-typing-units-of-trypanosoma-cruzi-detected-by-real-time-pcr-in-chilean-patients-with-chronic-chagas-cardiomyopathy
#14
Catalina Muñoz-San Martín, Inés Zulantay, Miguel Saavedra, Cristián Fuentealba, Gabriela Muñoz, Werner Apt
Chagas disease is a major public health problem in Latin America and has spread to other countries due to immigration of infected persons. 10-30% of patients with chronic Chagas disease will develop cardiomyopathy. Chagas cardiomyopathy is the worst form of the disease, due to its high morbidity and mortality. Because of its prognostic value and adequate medical monitoring, it is very important to identify infected people who could develop Chagas cardiomyopathy. The aim of this study was to determine if discrete typing units (DTUs) of Trypanosoma cruzi are related to the presence of heart disease in patients with chronic Chagas disease...
September 2018: Acta Tropica
https://www.readbyqxmd.com/read/29604420/prognostic-value-of-global-longitudinal-strain-in-heart-failure-patients-treated-with-cardiac-resynchronization-therapy
#15
Mand J H Khidir, Rachid Abou, Dilek Yilmaz, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
BACKGROUND: Myocardial fibrosis (macroscopic scar or diffuse reactive fibrosis) is one of the determinants of impaired left ventricular (LV) global longitudinal strain (GLS) in heart failure (HF) patients. OBJECTIVE: The purpose of this study was to evaluate the prognostic value of LV GLS in HF patients treated with cardiac resynchronization therapy (CRT). METHODS: The study included 829 HF patients (mean age 64.6 ± 10.4 years; 72% men) treated with CRT...
October 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29538524/correlation-of-electrocardiographic-changes-with-cardiac-magnetic-resonance-findings-in-patients-with-hypertrophic-cardiomyopathy
#16
COMPARATIVE STUDY
Gabriela Miana de Mattos Paixão, Horácio Eduardo Veronesi, Halsted Alarcão Gomes Pereira da Silva, José Nunes de Alencar Neto, Carolina de Paulo Maldi, Luciano de Figueiredo Aguiar Filho, Ibrahim Masciarelli Francisco Pinto, Francisco Faustino de Albuquerque Carneiro de França, Edileide de Barros Correia
BACKGROUND: Electrocardiogram is the initial test in the investigation of heart disease. Electrocardiographic changes in hypertrophic cardiomyopathy have no set pattern, and correlates poorly with echocardiographic findings. Cardiac magnetic resonance imaging has been gaining momentum for better assessment of hypertrophy, as well as the detection of myocardial fibrosis. OBJECTIVES: To correlate the electrocardiographic changes with the location of hypertrophy in hypertrophic cardiomyopathy by cardiac magnetic resonance...
January 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29477973/mechanical-function-of-the-left-atrium-is-improved-with-epicardial-ligation-of-the-left-atrial-appendage-insights-from-the-lafit-lariat-registry
#17
Tawseef Dar, Muhammad R Afzal, Bharath Yarlagadda, Shelby Kutty, Quanliang Shang, Sampath Gunda, Anweshan Samanta, Jahnavi Thummaluru, Kedareeshwar S Arukala, Arun Kanmanthareddy, Madhu Reddy, Donita Atkins, Sudharani Bommana, Buddhadeb Dawn, Dhanunjaya Lakkireddy
BACKGROUND: Left atrial (LA) strain (ε) and ε rate (SR) analysis by 2-dimensional speckle tracking echocardiography is a novel method for functional assessment of the LA. OBJECTIVE: The purpose of this study was to determine the impact of left atrial appendage (LAA) exclusion by Lariat epicardial ligation on mechanical function of the LA by performing ε and SR analysis before and after the procedure. METHODS: A total of 66 patients who underwent successful LAA exclusion were included in the study...
July 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29407623/prognostic-significance-of-electrocardiogram-at-presentation-in-patients-with-pulmonary-embolism-of-different-severity
#18
Franco Casazza, Ilaria Pacchetti, Eliana Rulli, Loris Roncon, Pietro Zonzin, Marco Zuin, Cecilia Becattini, Amedeo Bongarzoni, Luigi Pignataro
BACKGROUND: Several electrocardiographic (ECG) abnormalities have been described in patients with acute pulmonary embolism (PE), with discordant reportings about their prognostic value. METHODS: Consecutive patients with echocardiography performed within 48 h from admission and ECG at presentation, were included in this analysis. The primary study outcome was in-hospital death for high-risk patients and in-hospital death or clinical deterioration for intermediate-risk patients...
March 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29284413/lower-diastolic-wall-strain-is-associated-with-coronary-revascularization-in-patients-with-stable-angina
#19
Jaehuk Choi, Min-Kyung Kang, Chaehoon Han, Sang Muk Hwang, Sung Gu Jung, Han-Kyul Kim, Kwang Jin Chun, Seonghoon Choi, Jung Rae Cho, Namho Lee
BACKGROUND: Left ventricular (LV) diastolic dysfunction occurs earlier in the ischemic cascade than LV systolic dysfunction and electrocardiographic changes. Diastolic wall strain (DWS) has been proposed as a marker of LV diastolic stiffness. Therefore, the objectives of this study were to define the relationship between DWS and coronary revascularization and to evaluate other echocardiographic parameters in patients with stable angina who were undergoing coronary angiography (CAG). METHODS: Four hundred forty patients [mean age: 61 ± 10; 249 (57%) men] undergoing CAG and with normal left ventricular systolic function without regional wall motion abnormalities were enrolled...
December 28, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29181826/speckle-tracking-imaging-in-inflammatory-heart-diseases
#20
COMPARATIVE STUDY
Marina Leitman, Zvi Vered, Vladimir Tyomkin, Boris Macogon, Gil Moravsky, Eli Peleg, Laurian Copel
Accurate diagnosis of acute myocarditis is important for the prognosis and risk stratification of these patients. Cardiac magnetic resonance (CMR) has become a major modality for diagnosis of myocarditis, but not widely available. In this study, we tried to evaluate regional and global longitudinal strain by speckle tracking echocardiography in patients with acute inflammatory myocardial diseases in correlation with CMR. Patients with suspected acute myocarditis were recruited prospectively. Clinical diagnosis was established based on clinical, electrocardiographic, laboratory and conventional echocardiographic data...
May 2018: International Journal of Cardiovascular Imaging
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