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Ecg present parameter

Anandhi D, Vinay R Pandit, Tamilarasu Kadhiravan, Soundaravally R, K N J Prakash Raju
BACKGROUND: Consumption of yellow oleander (Cascabela thevetia) is a popular method of intentional self-harm in South India. OBJECTIVES: The objectives of this study were to identify the cardiac arrhythmias and electrolyte abnormalities in yellow oleander poisoning and to identify the association between electrolyte abnormalities, cardiac glycoside concentrations at admission and the severity of cardiotoxicity. This study was also designed to identify clinical and biochemical parameters at presentation which predict serious arrhythmias and determinants of mortality...
August 3, 2018: Clinical Toxicology
Islam ElSayed Shehata, Cheng-I Cheng, Pei-Hsun Sung, Ahmed S Ammar, Islam Abd El-Moneem El-Sherbiny, Islam Ghanem Ahmed Ghanem
BACKGROUND: Following acute ST elevation myocardial infarction (STEMI), restoration of large-vessel patency does not mean complete perfusion recovery. Little is known regarding the predictors of successful myocardial reperfusion for the STEMI patients undergoing pharmacologic and mechanical reperfusion strategies. AIM OF THE WORK: The aim of this clinical study was to find out the predictors of myocardial functional recovery following reperfusion of acute STEMI, represented by 3-month global longitudinal strain (GLS) value assessed by speckle tracking echocardiography...
August 2, 2018: Echocardiography
Yoko Ikoma, Ikue Kusumoto-Yoshida, Akihiro Yamanaka, Youichirou Ootsuka, Tomoyuki Kuwaki
The medullary raphé nuclei are involved in controlling cardiovascular, respiratory, and thermoregulatory functions, as well as mediating stress-induced tachycardia and hyperthermia. Although the serotonergic system of the medullary raphé has been suggested as the responsible entity, specific evidence has been insufficient. In the present study, we tested this possibility by utilizing an optogenetic approach. We used genetically modified mice [tryptophan hydroxylase 2 (Tph2); archaerhodopsin-T (ArchT) mice] in which ArchT, a green light-driven neuronal silencer, was selectively expressed in serotonergic neurons under the regulation of Tph2 promoters...
2018: Frontiers in Physiology
Hans Persson, Erwan Donal, Lars H Lund, Dmitri Matan, Emmanuel Oger, Camilla Hage, Jean-Claude Daubert, Cecilia Linde
AIMS: To study prevalence and prognostic importance of diagnostic echocardiographic variables in patients with suspected heart failure with preserved ejection fraction (HFpEF) in the prospective KaRen register study. METHODS AND RESULTS: KaRen patients were included following an acute HF-presentation, using Framingham criteria, B-type natriuretic peptide (BNP) >100 ng/L or N-terminal pro-BNP (NT-pro-BNP) >300 ng/L, and left ventricular (LV) ejection fraction ≥45%...
June 20, 2018: International Journal of Cardiology
Giordano D'Urso, Annalisa Anastasia, Elena Toscano, Sara Patti, Andrea de Bartolomeis
Aripiprazole is an atypical antipsychotic drug with a polypharmacological mechanism of action and a favorable tolerability profile. Its major indications are schizophrenia and mania in adults and adolescents. Here we present the case of a 43-year-old Caucasian man with schizophrenia who developed atrial fibrillation (AF) after starting aripiprazole treatment. Prior to this treatment, he had never received any antipsychotic drugs. On admission to our inpatient unit, he showed severe psychotic symptoms and was started on aripiprazole with a rapid titration regimen (15 mg on the first day and then 15 mg twice daily thereafter) in combination with lorazepam (2...
July 23, 2018: Experimental and Clinical Psychopharmacology
Seda Tural Onur, Samim Emet, Sinem Nedime Sokucu, Imran Onur
Introduction: The interval from the peak to the end of the electrocardiographic (ECG) T wave (Tp-Te) can estimate cardiovascular mortality and ventricular tachyarrhythmias. Objectives: In this study, we aimed to define a new ECG parameter in patients with COPD. Methods: This was a cross-sectional observational study that included COPD patients who were diagnosed previously and followed up in the outpatient clinic. All data of the patients' demographic features, history, spirometry, and electrocardiographs were analyzed...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Bence Varga, Anna Gergely, Ágoston Galambos, Anna Kis
The domestic dog ( Canis familiaris ) has been shown to both excel in recognising human emotions and produce emotion-related vocalisations and postures that humans can easily recognise. However, little is known about the effect of emotional experiences on subsequent sleep physiology, a set of phenomena heavily interrelated with emotions in the case of humans. The present paper examines heart rate (HR) and heart rate variability (HRV) during dogs' sleep, measures that are influenced by both positive and negative emotions in awake dogs...
July 2, 2018: Animals: An Open Access Journal From MDPI
Peter H Charlton, Drew A Birrenkott, Timothy Bonnici, Marco A F Pimentel, Alistair E W Johnson, Jordi Alastruey, Lionel Tarassenko, Peter J Watkinson, Richard Beale, David A Clifton
Breathing rate (BR) is a key physiological parameter used in a range of clinical settings. Despite its diagnostic and prognostic value, it is still widely measured by counting breaths manually. A plethora of algorithms have been proposed to estimate BR from the electrocardiogram (ECG) and pulse oximetry (photoplethysmogram, PPG) signals. These BR algorithms provide opportunity for automated, electronic, and unobtrusive measurement of BR in both healthcare and fitness monitoring. This paper presents a review of the literature on BR estimation from the ECG and PPG...
2018: IEEE Reviews in Biomedical Engineering
Abdelakram Hafid, Sara Benouar, Malika Kedir-Talha, Farhad Abtahi, Mokhtar Attari, Fernando Seoane
Impedance Cardiography (ICG) is a non-invasive method for monitoring cardiac dynamics using Electrical Bioimpedance (EBI) measurements. Since its appearance more than 40 years ago, ICG has been used for assessing hemodynamic parameters. This paper present a measurement system based on two System on Chip (SoC) solutions and Raspberry PI, implementing both a full 3-lead ECG recorder and an impedance cardiographer, for educational and research development purposes. Raspberry PI is a platform supporting Do-It-Yourself project and education applications across the world...
December 15, 2017: IEEE Journal of Biomedical and Health Informatics
Morten B Thomsen, Morten S Nielsen, Annemarie Aarup, Line S Bisgaard, Tanja X Pedersen
Chronic kidney disease (CKD) and uremia increase the risk of heart disease and sudden cardiac death. Coronary artery disease can only partly account for this. The remaining mechanistic links between CKD and sudden death are elusive, but may involve cardiac arrhythmias. For the present study, we hypothesized that a thorough electrophysiological study in mice with CKD would provide us valuable information that could aid in the identification of additional underlying causes of sudden cardiac death in patients with kidney disease...
July 2018: Physiological Reports
Dmitriy Melkonian, Terry Blumenthal, Edward Barin
Probabilistic formalism of quantum mechanics is used to quantitatively link the global scale mass potential with the underlying electrical activity of excitable cells. Previous approaches implemented methods of classical physics to reconstruct the mass potential in terms of explicit physical models of participating cells and the volume conductor. However, the multiplicity of cellular processes with extremely intricate mixtures of deterministic and random factors prevents the creation of consistent biophysical parameter sets...
2018: PloS One
Wei Xia, Xiao-Yan Feng
BACKGROUND ST-segment elevation myocardial infarction (STEMI) is an acute and life-threatening disease. Adverse cardiac events (ACEs) are defined as cardiovascular death or worsening congestive heart failure in STEMI patients. The present study investigated the predictive role of fragmented QRS complex (fQRS) in risks of ACEs in STEMI. MATERIAL AND METHODS This study was a retrospective analysis involving patients who underwent percutaneous coronary intervention (PCI) or thrombolysis. STEMI patients were divided into the fQRS group (259 cases) and the non-fQRS group (161 cases)...
July 5, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Eva Steinmann, Hans-Peter Brunner-La Rocca, Micha T Maeder, Beat A Kaufmann, Matthias Pfisterer, Peter Rickenbacher
BACKGROUND: Whether the clinical presentation and in particular prevalence of symptoms and signs of heart failure (HF) is different in elderly versus younger patients and in those with reduced (HFrEF) versus preserved (HFpEF) left ventricular ejection fraction (LVEF) is a matter of ongoing debate. AIMS: To compare detailed clinical characteristics of these important subgroups and to develop a prediction rule for the differentiation of HFpEF and HFrEF based on clinical parameters...
June 13, 2018: European Journal of Internal Medicine
Hamid Gholamhosseini, Mirza Baig, Solmaz Rastegar, Maria Lindén
High blood pressure (BP) is one of the common risk factors for heart disease, stroke, congestive heart failure, and kidney disease. An accurate, continuous and cuffless BP monitoring technique could help clinicians improve the rate of prevention, detection, and treatment of hypertension and related diseases. Pulse transit time (PTT) has attracted interest as an index of BP changes for cuffless BP measurement techniques. Currently, PPT-based BP measurement approaches have improved and are able to relieve the discomfort associated with an inflated cuff such as that used in auscultatory and oscillometric BP measurement techniques...
2018: Studies in Health Technology and Informatics
Susana Rodrigues, Joana S Paiva, Duarte Dias, Marta Aleixo, Rui Manuel Filipe, João Paulo S Cunha
Stress can impact multiple psychological and physiological human domains. In order to better understand the effect of stress on cognitive performance, and whether this effect is related to an autonomic response to stress, the Trier Social Stress Test (TSST) was used as a testing platform along with a 2-Choice Reaction Time Task. When considering the nature and importance of Air Traffic Controllers (ATCs) work and the fact that they are subjected to high levels of stress, this study was conducted with a sample of ATCs ( n = 11)...
May 26, 2018: International Journal of Environmental Research and Public Health
Andrius Rapalis, Andrius Petrėnas, Monika Šimaitytė, Raquel Bailón, Vaidotas Marozas
OBJECTIVE: The growing interest to integrate consumer smart wristbands in eHealth applications spawns the need for novel approaches of data parametrization which account for the technology-specific constraints. The present study aims to investigate the feasibility of a consumer smart wristband to be used for computing pulse rate parameters during free-living activities. APPROACH: The feasibility of computing pulse rate variability (PRV) as well as pulse rate and physical activity-related parameters using the smart wristband was investigated, having an electrocardiogram as a reference...
May 31, 2018: Physiological Measurement
Brett J Carroll, Benedikt H Heidinger, Dominique C Dabreo, Jason D Matos, Donya Mohebali, Stephanie A Feldman, Ian McCormick, Diana Litmanovich, Warren J Manning
Optimal risk stratification is essential in managing patients with an acute pulmonary embolism (PE). There are limited data evaluating the potential additive value of various methods of evaluation of right ventricular (RV) strain in PE. We retrospectively evaluated RV strain by computed tomography (CT), transthoracic echocardiography (TTE), electrocardiography (ECG), and troponin levels in consecutive hospitalized patients with acute PE (May 2007 to December 2014). Four-hundred and seventy-seven patients met inclusion criteria...
July 1, 2018: American Journal of Cardiology
Yuri M Pozdnyakov
INTRODUCTION: Trimetazidine (TMZ) is an anti-ischemic metabolic agent that has been shown to be efficacious in angina treatment, both in monotherapy and in combination. A new formulation of TMZ modified-release (MR) 80 mg was developed, which is to be taken once daily (od), instead of twice daily (bid) for the currently available TMZ MR 35 mg, with the aim of simplifying the medication regimen. METHODS: The present study was an international, multicenter, randomized, double-blind, parallel-group phase III study with a 12-week treatment period...
June 2018: Cardiology and Therapy
Lara Tondi, Gabriele Fragasso, Roberto Spoladore, Giuseppe Pinto, Marco Gemma, Massimo Slavich, Cosmo Godino, Anna Salerno, Claudia Montanaro, Alberto Margonato
: Ivabradine is a selective and specific inhibitor of If current. With its pure negative chronotropic action, it is recommended by European Society of Cardiology and American College of Cardiology/American Heart Association guidelines in symptomatic heart failure patients (NYHA ≥ 2) with ejection fraction 35% or less, sinus rhythm and heart rate (HR) at least 70 bpm, despite maximally titrated β-blocker therapy. Data supporting this indication mainly derive from the SHIFT study, in which ivabradine reduced the combined endpoint of mortality and hospitalization, despite the fact that only 26% of patients enrolled were on optimal β-blocker doses...
July 2018: Journal of Cardiovascular Medicine
Erdoğan Sökmen, Sinan Cemgil Özbek, Mustafa Çelik, Serkan Sivri, Mehmet Metin, Mustafa Avcu
BACKGROUND: Ventricular arrhythmias are reported to be more common in patients with obstructive sleep apnea (OSA). Preliminary evidence showed such parameters regarding ventricular repolarization as Tp-e, Tp-e/QT, and Tp-e/QTc may be related with increased cardiac arrhythmias and even sudden cardiac death. The purpose of the present study was to evaluate ventricular repolarization during immediately preapnea period, apnea period, and postapnea hyperventilation period in patients with OSA...
May 4, 2018: Pacing and Clinical Electrophysiology: PACE
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