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Electrocardiograph

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https://www.readbyqxmd.com/read/28329376/comparison-of-the-prognostic-value-of-negative-non-invasive-cardiac-investigations-in-patients-with-suspected-or-known-coronary-artery-disease-a-meta-analysis
#1
Martijn W Smulders, Caroline Jaarsma, Patricia J Nelemans, Sebastiaan C A M Bekkers, Jan Bucerius, Tim Leiner, Harry J G M Crijns, Joachim E Wildberger, Simon Schalla
Aims: To compare the prognostic value of negative non-invasive cardiac investigations (coronary computed tomographic angiography [CCTA], cardiovascular magnetic resonance [CMR], exercise electrocardiographic testing [EET], positron emission tomography [PET], stress-echocardiography [SE], and single-photon emission tomography [SPECT]) in patients with suspected or known coronary artery disease (CAD) and to explore the effect of adjustment for population event risk and presence of CAD. Methods and results: MEDLINE/PubMed database, EMBASE and Cochrane Library were searched from January-1990 to April-2015 for studies reporting annual event rates (AER) of myocardial infarction (MI) and cardiac death...
February 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329355/international-recommendations-for-electrocardiographic-interpretation-in-athletes
#2
Sanjay Sharma, Jonathan A Drezner, Aaron Baggish, Michael Papadakis, Mathew G Wilson, Jordan M Prutkin, Andre La Gerche, Michael J Ackerman, Mats Borjesson, Jack C Salerno, Irfan M Asif, David S Owens, Eugene H Chung, Michael S Emery, Victor F Froelicher, Hein Heidbuchel, Carmen Adamuz, Chad A Asplund, Gordon Cohen, Kimberly G Harmon, Joseph C Marek, Silvana Molossi, Josef Niebauer, Hank F Pelto, Marco V Perez, Nathan R Riding, Tess Saarel, Christian M Schmied, David M Shipon, Ricardo Stein, Victoria L Vetter, Antonio Pelliccia, Domenico Corrado
Sudden cardiac death (SCD) is the leading cause of mortality in athletes during sport. A variety of mostly hereditary, structural, or electrical cardiac disorders are associated with SCD in young athletes, the majority of which can be identified or suggested by abnormalities on a resting 12-lead electrocardiogram (ECG). Whether used for diagnostic or screening purposes, physicians responsible for the cardiovascular care of athletes should be knowledgeable and competent in ECG interpretation in athletes. However, in most countries a shortage of physician expertise limits wider application of the ECG in the care of the athlete...
February 20, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28327645/a-novel-point-of-care-smartphone-based-system-for-monitoring-the-cardiac-and-respiratory-systems
#3
Kwanghyun Sohn, Faisal M Merchant, Omid Sayadi, Dheeraj Puppala, Rajiv Doddamani, Ashish Sahani, Jagmeet P Singh, E Kevin Heist, Eric M Isselbacher, Antonis A Armoundas
Cardio-respiratory monitoring is one of the most demanding areas in the rapidly growing, mobile-device, based health care delivery. We developed a 12-lead smartphone-based electrocardiogram (ECG) acquisition and monitoring system (called "cvrPhone"), and an application to assess underlying ischemia, and estimate the respiration rate (RR) and tidal volume (TV) from analysis of electrocardiographic (ECG) signals only. During in-vivo swine studies (n = 6), 12-lead ECG signals were recorded at baseline and following coronary artery occlusion...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325638/clinically-significant-bleeding-with-low-dose-rivaroxaban-versus-aspirin-in-addition-to-p2y12-inhibition-in-acute-coronary-syndromes-gemini-acs-1-a-double-blind-multicentre-randomised-trial
#4
E Magnus Ohman, Matthew T Roe, P Gabriel Steg, Stefan K James, Thomas J Povsic, Jennifer White, Frank Rockhold, Alexei Plotnikov, Hardi Mundl, John Strony, Xiang Sun, Steen Husted, Michal Tendera, Gilles Montalescot, M Cecilia Bahit, Diego Ardissino, Héctor Bueno, Marc J Claeys, Jose C Nicolau, Jan H Cornel, Shinya Goto, Róbert Gábor Kiss, Ümit Güray, Duk-Woo Park, Christoph Bode, Robert C Welsh, C Michael Gibson
BACKGROUND: Dual antiplatelet therapy (DAPT), aspirin plus a P2Y12 inhibitor, is the standard antithrombotic treatment following acute coronary syndromes. The factor Xa inhibitor rivaroxaban reduced mortality and ischaemic events when added to DAPT, but caused increased bleeding. The safety of a dual pathway antithrombotic therapy approach combining low-dose rivaroxaban (in place of aspirin) with a P2Y12 inhibitor has not been assesssed in acute coronary syndromes. We aimed to assess rivaroxaban 2·5 mg twice daily versus aspirin 100 mg daily, in addition to clopidogrel or ticagrelor (chosen at investigator discretion before randomisation), for patients with acute coronary syndromes started within 10 days after presentation and continued for 6-12 months...
March 17, 2017: Lancet
https://www.readbyqxmd.com/read/28324986/electrocardiographic-waveforms-fitness-check-device-technique-for-sudden-cardiac-death-risk-screening
#5
O J Escalona, M Mendoza
A novel cardiac health device technique development for reliable, non-invasive and cost-effective heart screening in preventive cardiovascular healthcare is presented. In particular, identification of apparently healthy individuals involved in sports activities (particularly in the young, age <; 35 years) who may be at-risk of sudden-cardiac-death (SCD) is mainly focused here. Nevertheless, the same device technique may be prospectively extended for detecting cardiovascular abnormalities in children and adolescents with type1-diabetes, and also in detecting patients with Brugada syndrome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323007/intrathecal-application-of-the-microglial-inhibitor-minocycline-attenuates-sympathoexcitatory-and-proarrhythmogenic-changes-in-rats-with-chronic-temporal-lobe-epilepsy
#6
Amol M Bhandare, Komal Kapoor, Kim L Powell, Emma Braine, Pablo Casillas-Espinosa, Terence J O'Brien, Melissa M J Farnham, Paul M Pilowsky
The incidence of sudden unexpected death in epilepsy (SUDEP) is highest in people with chronic and drug resistant epilepsy. Chronic spontaneous recurrent seizures cause cardiorespiratory autonomic dysfunctions. Pituitary adenylate cyclase-activating polypeptide (PACAP) is neuroprotective, whereas microglia produce both pro- and anti- inflammatory effects in the CNS. During acute seizures in rats, PACAP and microglia produce sympathoprotective effect at the intermediolateral cell column (IML), whereas their action on the presympathetic rostral ventrolateral medulla (RVLM) neurons mediates proarrhythmogenic changes...
March 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28321519/cardiac-autonomic-function-in-type-1-and-type-2-myotonic-dystrophy
#7
Piotr Bienias, Anna Łusakowska, Michał Ciurzyński, Zuzanna Rymarczyk, Katarzyna Irzyk, Michał Konwerski, Kamil Ciąpała, Paweł Kowalski, Anna Kamińska, Piotr Pruszczyk
OBJECTIVE: The aim of this study was to evaluate cardiac autonomic nervous system function using Holter-derived and standard electrocardiographic parameters in patients with myotonic dystrophy (dystrophia myotonica, DM) and no clinically overt heart involvement. METHODS: Eighty-four DM patients without conditions potentially influencing cardiac autonomic function were enrolled in the study: 44 with DM type 1 and 40 with DM type 2 (mean age 34.9 ± 11.5 and 47...
March 20, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28318851/the-importance-of-the-neutrophil-to-lymphocyte-ratio-in-patients-with-hypertrophic-cardiomyopathy
#8
Sinem Ozyilmaz, Ozgur Akgul, Huseyin Uyarel, Hamdi Pusuroglu, Mehmet Gul, Muhammet Hulusi Satilmisoglu, Ismail Bolat, Isa Ozyilmaz, Hakan Uçar, Aydin Yildirim, Ihsan Bakir
INTRODUCTION: Previous studies have demonstrated the predictive value of the neutrophil-to-lymphocyte ratio (NLR) in many cardiovascular disorders. The aim of this study was to assess whether NLR is associated with echocardiographic or electrocardiographic parameters, or with predicted five-year risk of sudden cardiac death (SCD), in patients with hypertrophic cardiomyopathy (HCM). METHODS: This prospective observational study included 74 controls and 97 HCM patients...
March 17, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28317612/hormonal-electrolytic-and-electrocardiographic-evaluations-in-bitches-with-eutocia-and-dystocia
#9
Carla Regina Barbieri Simões, Flávia Gardilin Vassalo, Maria Lúcia Gomes Lourenço, Fabiana Ferreira de Souza, Eunice Oba, Mateus José Sudano, Nereu Carlos Prestes
The objective of the study was to assess clinical alterations, electrocardiographic, hematological, biochemical, hemogasometric, electrolytic, and hormone plasma concentrations in bitches with eutocia and dystocia. Overall, 28 bitches (dystocia, n = 22 and eutocia, n = 6) were assessed. The evaluations were performed at 2 time points, M1 (1 hour prepartum-eutocia group and cesarean or clinical intervention-dystocia group) and M2 (postpartum-eutocia or dystocia group and anesthetic recovery-dystocia group). The main clinical finding was the hypothermia (mean: 36...
December 2016: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28315570/tp-e-interval-and-tp-e-qtc-ratio-as-novel-surrogate-markers-for-prediction-of-ventricular-arrhythmic-events-in-hypertrophic-cardiomyopathy
#10
Mehmet Kadri Akboğa, Kevser Gülcihan Balcı, Samet Yılmaz, Selahattin Aydın, Çağrı Yayla, Ahmet Göktuğ Ertem, Sefa Ünal, Mustafa Mücahit Balcı, Yücel Balbay, Dursun Aras, Serkan Topaloğlu
OBJECTIVE: Hypertrophic cardiomyopathy (HCM) as a common genetic heart disease characterized by ventricular hypertrophy and myocardial fibrosis is significantly associated with a higher risk of fatal ventricular arrhythmic events (VAEs). We aimed to assess the interval between the peak and the end of the electrocardiographic T wave (Tp-e) and Tp-e/corrected QT (QTc) ratio as candidate markers of ventricular arrhythmias in patients with HCM. METHODS: In this single-center, prospective study, a total of 66 patients with HCM and 88 controls were enrolled...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28303997/right-ventricular-involvement-in-patients-with-inferior-myocardial-infarction-correlation-of-electrocardiographic-findings-with-echocardiography-data
#11
Sumbul Javed, Ali Raza Rajani, Pushparani Govindaswamy, Ghazi Ahmed Radaideh, Harb Ahmed Abubaraka, Tariq Ilyas Qureshi, Hassaan Bin Arshad
OBJECTIVE: To determine the right ventricular involvement in patients with inferior myocardial infarction by echocardiography in relation to electrocardiographic findings. METHODS: This observational, prospective study was conducted at Rashid Hospital, Dubai, the United Arab Emirates, from January to September 2013, and comprised patients with inferior myocardial infarction. All patients aged above 18 years were included. Right ventricular myocardial infarction was defined by the electrocardiographic criteria of > 1mV ST elevation in V4R-V5R leads...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28303474/respiratory-motion-reduction-with-a-dual-gating-approach-in-myocardial-perfusion-spect-effect-on-left-ventricular-functional-parameters
#12
Matti J Kortelainen, Tuomas M Koivumäki, Marko J Vauhkonen, Marja K Hedman, Satu T J Kärkkäinen, Juanita Niño Quintero, Mikko A Hakulinen
BACKGROUND: Respiratory motion (RM) complicates the analysis of myocardial perfusion (MP) single-photon emission computed tomography (SPECT) images. The effects of RM on left ventricular (LV) functional variables have not been thoroughly investigated. METHODS AND RESULTS: Thoracic electrical bioimpedance and electrocardiographic signals were recorded from eighteen patients undergoing the rest phase of a 1-day stress/rest cardiac-gated MP-SPECT examination. The signals and list-mode emission data were retrospectively processed to yield standard cardiac- and dual-gated (respiratory and cardiac gating) image sets applying a novel algorithm...
March 16, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28302651/electrocardiographic-abnormalities-and-cardiovascular-disease-risk-in-type-1-diabetes-the-epidemiology-of-diabetes-interventions-and-complications-edic-study
#13
Elsayed Z Soliman, Jye-Yu C Backlund, Ionut Bebu, Trevor J Orchard, Bernard Zinman, John M Lachin
OBJECTIVE: We examined the association between the prevalence and incidence of electrocardiographic (ECG) abnormalities with the development of cardiovascular disease (CVD) in patients with type 1 diabetes, among whom these ECG abnormalities are common. RESEARCH DESIGN AND METHODS: A longitudinal cohort study involving 1,306 patients with type 1 diabetes (mean age 35.5 ± 6.9 years; 47.7% female) from the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) Study...
March 16, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28302271/risk-stratification-model-for-30-day-heart-failure-readmission-in-a-multiethnic-south-east-asian-community
#14
Kui Toh Gerard Leong, Lai Yin Wong, Khin Chaw Yu Aung, Michael Macdonald, Yan Cao, Sheldon Lee, Wai Leng Chow, Sanjay Doddamani, Arthur Mark Richards
There are limited accurate 30-day heart failure (HF) readmission risk scores using readily available clinical patient information on a well-defined HF cohort. We analyzed 1,475 admissions discharged from our hospital with a primary diagnosis of HF between 2010 and 2012. HF diagnostic criteria included satisfying clinical Framingham criteria, elevated serum N-terminal pro-natriuretic peptide, and evidence of cardiac dysfunction on transthoracic echocardiography. The patients were randomly divided into 2 groups; 60% were used as the derivation cohort and 40% as the validation cohort...
February 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28296760/fluctuations-in-the-amplitude-of-st-segment-elevation-in-vasospastic-angina-two-case-reports
#15
Ming-Jui Hung
RATIONALE: ST-segment elevation localizes an ischemic lesion to the coronary artery supplying the area of the myocardium reflected by the electrocardiographic leads. Dynamic ST-segment elevation can be due to severe transmural ischemia secondary to a thrombus, vasospasm, or a tightly fixed coronary artery lesion or a combination of these situations. PATIENT CONCERNS: In this study, we report on two patients with angina who had fluctuations in ST-segment amplitude on serial electrocardiograms...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28294402/five-year-follow-up-two-dimensional-speckle-tracking-echocardiography-in-a-juvenile-with-a-double-chambered-left-ventricle
#16
Kenji Harada, Kazuhiro Mori, Chiyo Ichimiya, Naho Terada, Tsutomu Iima, Takafumi Harada, Kazutoshi Fujisawa, Atsushi Kawata, Ayumi Okada, Hirofumi Yamamoto, Hiroyuki Fujinaga
Double-chambered left ventricle (DCLV) is a particularly rare congenital entity characterized by the presence of two ventricular cavities separated by an abnormal muscle band. An asymptomatic 15-year-old boy was referred to our hospital because of electrocardiographic (ECG) abnormalities. His initial transthoracic echocardiography (TTE) demonstrated a DCLV with mild left ventricular systolic dysfunction. During a 5-year follow-up period, he remained symptom free with no changes in ECG and conventional TTE findings...
March 14, 2017: Echocardiography
https://www.readbyqxmd.com/read/28292752/fascicular-ventricular-tachycardia-originating-from-papillary-muscles-purkinje-network-involvement-in-the-reentrant-circuit
#17
Yuki Komatsu, Akihiko Nogami, Kenji Kurosaki, Itsuro Morishima, Keita Masuda, Tomoya Ozawa, Takashi Kaneshiro, Yuichi Hanaki, Yasutoshi Shinoda, Ahmed Karim Talib, Shinya Kowase, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: Verapamil-sensitive fascicular ventricular tachycardia (FVT) has been demonstrated to be a reentrant mechanism using the Purkinje network as a part of its reentrant circuit. Although the papillary muscles (PMs) are implicated in arrhythmogenic structure, reentrant FVT originating from the PMs has not been well defined. METHODS AND RESULTS: We studied 13 patients in whom FVT was successfully eliminated by ablation at the posterior PMs (n=8; PPM-FVT) and anterior PMs (n=5; APM-FVT)...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28291831/t-wave-loop-area-from-a-pre-implant-12-lead-ecg-is-associated-with-appropriate-icd-shocks
#18
Joachim Seegers, Katerina Hnatkova, Tim Friede, Marek Malik, Markus Zabel
AIMS: In implantable cardioverter-defibrillator (ICD) patients, predictors of ICD shocks and mortality are needed to improve patient selection. Electrocardiographic (ECG) markers are simple to obtain and have been demonstrated to predict mortality. We aimed to assess the association of T-wave loop area and circularity with ICD shocks. METHODS: The study investigated patients with ICDs implanted between 1998 and 2010 for whom digital 12-lead ECGs (Schiller CS200 ECG-Network) of sufficient quality were obtained within 1 month prior to the implantation...
2017: PloS One
https://www.readbyqxmd.com/read/28290797/-the-brugada-syndrome-in-a-teenager
#19
I M Miklashevich, E V Kuleshova, S A Termosesov, M A Shkolnikova
The Brugada syndrome (BS) belongs to the group of hereditary channelopathies associated with elevated risk of sudden death (SD) in the absence of structural heart diseases. The disorder phenotypically manifests by specific electrocardiographic pattern, associated with ventricular tachycardia (VT). VT can be accompanied by loss of conscience, and after transformation to ventricular fibrillation result in SD. BS is extremely rare among children and adolescents. We present here a clinical case of teenager (age 17 years) with BS manifested by syncopal state at the background of fever...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28290647/syncope-evaluation-and-differential-diagnosis
#20
Lloyd A Runser, Robert L Gauer, Alex Houser
Syncope is an abrupt and transient loss of consciousness caused by cerebral hypoperfusion. It accounts for 1% to 1.5% of emergency department visits, resulting in high hospital admission rates and significant medical costs. Syncope is classified as neurally mediated, cardiac, and orthostatic hypotension. Neurally mediated syncope is the most common type and has a benign course, whereas cardiac syncope is associated with increased morbidity and mortality. Patients with presyncope have similar prognoses to those with syncope and should undergo a similar evaluation...
March 1, 2017: American Family Physician
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