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Electrocardiography

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https://www.readbyqxmd.com/read/28210619/a-useful-tool-as-a-medical-checkup-in-a-general-population-bioelectrical-impedance-analysis
#1
Mika Enomoto, Hisashi Adachi, Ako Fukami, Eita Kumagai, Sachiko Nakamura, Yume Nohara, Shoko Kono, Erika Nakao, Nagisa Morikawa, Tomoko Tsuru, Akiko Sakaue, Yoshihiro Fukumoto
Accumulation of visceral fat leads to metabolic syndrome and increases risks of cerebro-cardiovascular diseases, which should be recognized and improved at the early stage in general population. Accurate measurement of visceral fat area (VFA) is commonly performed by the abdominal cross-sectional image measured by computed tomography scan, which is, however, limited due to the radiation exposure. The bioelectrical impedance analysis (OMRON, HDS-2000 DUALSCAN(R)) has been recently developed to measure VFA, which is more easily accessible modality...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28208902/study-of-aortic-valve-sclerosis-as-a-marker-of-atherosclerosis-in-acute-coronary-syndromes
#2
Preeti Jane Picardo, Peter Daniel S Khariong, Ranendra Hajong, Debobratta Hajong, Narang Naku, Madhur Anand, Girish Sharma, K Lenish Singh
INTRODUCTION: Aortic valve sclerosis has been shown to be associated with increased incidence, chances of developing myocardial infarction and even death. The epidemiological risk factors causing calcification of aortic valves have also been found to cause atherosclerosis. AIM: To analyse the epidemiological risk factors causing aortic valve sclerosis which have been studied in details and analysed to see whether they cause any significant increase in the incidence of cardiovascular events...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28197282/fragmented-qrs-as-a-marker-of-electrical-dyssynchrony-to-predict-inter-ventricular-conduction-defect-by-subsequent-echocardiographic-assessment-in-symptomatic-patients-of-non-ischemic-dilated-cardiomyopathy
#3
Santosh Kumar Sinha, Kush Bhagat, Mohammad Asif, Karandeep Singh, Mohit Sachan, Vikas Mishra, Nasar Afdaali, Mukesh Jitendra Jha, Ashutosh Kumar, Shravan Singh, Rupesh Sinha, Dibbendhu Khanra, Ramesh Thakur, Chandra Mohan Varma, Vinay Krishna, Umeshwar Pandey
BACKGROUND: Left ventricular (LV) dyssynchrony frequently occurs in patients with heart failure (HF). QRS ≥ 120 ms is a surrogate marker of electrical dyssynchrony, which occurs in only 30% of HF patients. In contrary, in those with normal QRS (nQRS) duration, LV dyssynchrony has been reported in 20-50%. This study was carried out to investigate the role of fragmented QRS (fQRS) on the surface electrocardiography (ECG) as a marker of electrical dyssynchrony to predict the presence of significant intraventricular dyssynchrony (IVD) by subsequent echocardiographic assessment...
August 2016: Cardiology Research
https://www.readbyqxmd.com/read/28194254/long-term-continuous-ambulatory-ecg-monitors-and-external-cardiac-loop-recorders-for-cardiac-arrhythmia-a-health-technology-assessment
#4
(no author information available yet)
BACKGROUND: Ambulatory electrocardiography (ECG) monitors are often used to detect cardiac arrhythmia. For patients with symptoms, an external cardiac loop recorder will often be recommended. The improved recording capacity of newer Holter monitors and similar devices, collectively known as longterm continuous ambulatory ECG monitors, suggests that they will perform just as well as, or better than, external loop recorders. This health technology assessment aimed to evaluate the effectiveness, cost-effectiveness, and budget impact of longterm continuous ECG monitors compared with external loop recorders in detecting symptoms of cardiac arrhythmia...
2017: Ontario Health Technology Assessment Series
https://www.readbyqxmd.com/read/28194181/simultaneous-left-ventricular-and-deep-vein-thrombi-caused-by-protein-c-deficiency
#5
Harufumi Maki, Motohiro Nishiyama, Motoaki Shirakawa
Protein C deficiency is a risk of venous thrombosis because of poor fibrinolytic activity. It remains controversial whether protein C deficiency causes arterial thrombosis. A 21-year-old woman was referred with a chief complaint of right leg pain and numbness. Contrast-enhanced computed tomography revealed a low-density mass in the left ventricle (LV), splenic infarction, and peripheral arterial obstructions in her right leg. Thrombosis extending from the renal vein to the inferior vena cava was also detected...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28193783/remote-ischemic-preconditioning-triggers-changes-in-autonomic-nervous-system-activity-implications-for-cardioprotection
#6
Safa Abdul-Ghani, Arnold N Fleishman, Igor Khaliulin, Marco Meloni, Gianni D Angelini, M-Saadeh Suleiman
Cardioprotective efficacy of remote ischemic preconditioning (RIPC) remains controversial. Experimental studies investigating RIPC have largely monitored cardiovascular changes during index ischemia and reperfusion with little work investigating changes during RIPC application. This work aims to identify cardiovascular changes associated with autonomic nervous system (ANS) activity during RIPC and prior to index ischemia. RIPC was induced in anesthetized male C57/Bl6 mice by four cycles of 5 min of hindlimb ischemia using inflated cuff (200 mmHg) followed by 5 min reperfusion...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28183231/autonomic-nervous-activities-associated-with-bruxism-events-during-sleep
#7
Shinichi Nukazawa, Hidehiro Yoshimi, Sadao Sato
OBJECTIVES: To confirm the relationship between sleep bruxism (SB) and autonomic nervous (AN) activities to elucidate SB physiology. METHODS: Subjects included 11 healthy males (mean age, 24.7 ± 2.3 years). These data were recorded in the sleep laboratory using a system composed of a two-axis accelerometer, an infrared camera, electroencephalography, electromyography, and electrocardiography. Time lapse analysis confirmed correlations between AN activity and SB events during sleep in subjects...
February 10, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28178140/utility-of-duranta-a-wireless-patch-type-electrocardiographic-monitoring-system-developed-in-japan-in-detecting-covert-atrial-fibrillation-in-patients-with-cryptogenic-stroke-a-case-report
#8
Hisanao Akiyama, Saki Nukui, Takashi Araga, Masashi Hoshino, Keita Tanaka, Satoru Kashima, Rie Sasaki, Kenji Uchino, Yasuhiro Hasegawa
RATIONALE: Subcutaneous implantable electrocardiographs are highly effective in detecting covert atrial fibrillation (AF) in cryptogenic stroke. However, these invasive devices are not indicated for all cryptogenic stroke patients, and noninvasive improvements over conventional Holter-type ambulatory electrocardiography are needed. We evaluated the clinical application and effectiveness of Duranta (ImageONE Co., Ltd.), a wireless patch-type electrocardiographic monitoring system developed in Japan for chronically ill patients or home-based patients at the end of life...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28174525/cardiac-signals-are-independently-associated-with-temporal-discounting-and-time-perception
#9
Bowen J Fung, Damien L Crone, Stefan Bode, Carsten Murawski
Cardiac signals reflect the function of the autonomic nervous system (ANS) and have previously been associated with a range of self-regulatory behaviors such as emotion regulation and memory recall. It is unknown whether cardiac signals may also be associated with self-regulation in the temporal domain, in particular impulsivity. We assessed both decision impulsivity (temporal discounting, TD) and time perception impulsivity (duration reproduction, DR) in 120 participants while they underwent electrocardiography in order to test whether cardiac signals were related to these two aspects of impulsivity...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174175/association-of-implementation-of-practice-standards-for-electrocardiographic-monitoring-with-nurses-knowledge-quality-of-care-and-patient-outcomes-findings-from-the-practical-use-of-the-latest-standards-of-electrocardiography-pulse-trial
#10
Marjorie Funk, Kristopher P Fennie, Kimberly E Stephens, Jeanine L May, Catherine G Winkler, Barbara J Drew
BACKGROUND: Although continuous electrocardiographic (ECG) monitoring is ubiquitous in hospitals, monitoring practices are inconsistent. We evaluated implementation of American Heart Association practice standards for ECG monitoring on nurses' knowledge, quality of care, and patient outcomes. METHODS AND RESULTS: The PULSE (Practical Use of the Latest Standards of Electrocardiography) Trial was a 6-year multisite randomized clinical trial with crossover that took place in 65 cardiac units in 17 hospitals...
February 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28169914/cardiac-autonomic-function-and-hot-flashes-among-perimenopausal-and-postmenopausal-women
#11
Carolyn J Gibson, Wendy Berry Mendes, Michael Schembri, Deborah Grady, Alison J Huang
OBJECTIVE: Abnormalities in autonomic function are posited to play a pathophysiologic role in menopausal hot flashes. We examined relationships between resting cardiac autonomic activity and hot flashes in perimenopausal and postmenopausal women. METHODS: Autonomic function was assessed at baseline and 12 weeks among perimenopausal and postmenopausal women (n = 121, mean age 53 years) in a randomized trial of slow-paced respiration for hot flashes. Pre-ejection period (PEP), a marker of sympathetic activation, was measured with impedance cardiography...
February 6, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28169085/long-term-antiarrhythmic-effects-of-thrombolytic-therapy-in-pulmonary-embolism
#12
Mert İlker Hayıroğlu, Muhammed Keskin, Ahmet Okan Uzun, Ahmet İlker Tekkeşin, Şahin Avşar, Ahmet Öz, Özlem Yıldırımtürk, Barış Güngör, Göksel Çinier, Ahmet Taha Alper
BACKGROUND: The role of thrombolytic therapy in acute pulmonary embolism patients is still controversial considering the occurrence of arrhythmias. Short-term effects of thrombolytics are well-known whereas long-term effects on cardiac electrophysiology have not been reported before. The objective of our study was to assess the arrhythmic differences in pulmonary embolism patients who received thrombolytics followed by anticoagulation or anticoagulation alone. METHODS: Sixty patients who received thrombolytic therapy followed by anticoagulation (group 1) and 60 patients who received anticoagulation alone (group 2) were included in this retrospective, single-centre observational study...
January 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28169003/increased-calcium-leak-associated-with-reduced-calsequestrin-expression-in-hyperthyroid-cardiomyocytes
#13
David R de Alba-Aguayo, Natalia Pavón, Martha Mercado-Morales, Miyamin Miranda-Saturnino, Mavil López-Casamichana, Agustin Guerrero-Hernández, Angelica Rueda
INTRODUCTION: Calcium (Ca(2+)) leak during cardiac diastole is chiefly mediated by intracellular Ca(2+) channel/Ryanodine Receptors. Increased diastolic Ca(2+) leak has been proposed as the mechanism underlying the appearance of hereditary arrhythmias. However, little is known about alterations in diastolic Ca(2+) leak and the specific roles played by key intracellular Ca(2+)-handling proteins in hyperthyroidism, a known arrhythmogenic condition. AIM: We sought to determine whether there were modifications in diastolic Ca(2+) leak, based on the recording of Ca(2+) sparks and Ca(2+) waves; we also investigated changes in the expression and activity of key Ca(2+) handling proteins, including ryanodine receptors, Sarco-Endoplasmic Reticulum Ca(2+) ATPase pump and calsequestrin in isolated left-ventricular cardiomyocytes isolated from hyperthyroid rats...
January 23, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28168715/efficacy-safety-and-tolerability-of-the-ccr1-antagonist-bay-86-5047-for-the-treatment-of-endometriosis-associated-pelvic-pain-a-randomized-controlled-trial
#14
Dietmar Trummer, Anja Walzer, Esther Groettrup-Wolfers, Heinz Schmitz
INTRODUCTION: Antagonism of CC chemokine receptor type 1 (CCR1) may provide a novel treatment approach for women with symptomatic endometriosis. Studies of CCR1 antagonists in these patients have not been reported. MATERIALS AND METHODS: Women (n = 110; 18-45 years) with symptomatic endometriosis were randomized to BAY 86-5047 or placebo for 12 weeks. Pelvic pain was assessed using the visual analogue scale (VAS) and women recorded the intake of pain medication in a diary...
February 6, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28166774/highly-wearable-cuff-less-blood-pressure-and-heart-rate-monitoring-with-single-arm-electrocardiogram-and-photoplethysmogram-signals
#15
Qingxue Zhang, Dian Zhou, Xuan Zeng
BACKGROUND: Long-term continuous systolic blood pressure (SBP) and heart rate (HR) monitors are of tremendous value to medical (cardiovascular, circulatory and cerebrovascular management), wellness (emotional and stress tracking) and fitness (performance monitoring) applications, but face several major impediments, such as poor wearability, lack of widely accepted robust SBP models and insufficient proofing of the generalization ability of calibrated models. METHODS: This paper proposes a wearable cuff-less electrocardiography (ECG) and photoplethysmogram (PPG)-based SBP and HR monitoring system and many efforts are made focusing on above challenges...
February 6, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28164607/serum-levels-of-cardiac-troponin-i-in-asphyxiated-neonates-predict-mortality
#16
Wen-Jie Zhou, Fan Yu, Jing Shi, Hui Yang, Sheng-Jie Zou, Yong-Mei Jiang
BACKGROUND: Cardiac troponin I (cTnI) is a well-established marker for detecting myocardial ischemic damage in neonates with hypoxic-ischemic encephalopathy. However, the predictive value of cTnI in assessing mortality in neonatal asphyxia remains obscure. This retrospective study aims to analyze the relationship between cTnI levels in blood serum with gestational age, birth weight, gender, delivery type, electrocardiography, echocardiography, Apgar scores, length of hospital stay, and mortality in asphyxiated neonates...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28163524/afebrile-seizures-as-initial-symptom-of-hypocalcemia-secondary-to-hypoparathyroidism
#17
Anastasia Gkampeta, Eftyxia Kouma, Anastasia Touliopoulou, Efstathios Aggelopoulos, Eleni Vourti
Hypocalcemia is rare in childhood and caused, among other conditions, by hypoparathyroidism. DiGeorge syndrome is the most common cause of hypoparathyroidism in childhood. Presentation of a rare cause of hypocalcemia in childhood and the necessity of measuring serum electrolyte levels in patients presenting with afebrile seizures. a 7.5-year-old female child presented with afebrile seizures lasting 5 min with postictal drowsiness. A similar episode 1 month ago is described. On admission, a positive Trousseau sign, papilledema, and long QTc on electrocardiography were detected...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28158934/inducibility-of-ventricular-arrhythmia-1-year-following-treatment-with-heavy-ion-irradiation-in-dogs-with-myocardial-infarction
#18
Mari Amino, Koichiro Yoshioka, Yoshiya Furusawa, Sachie Tanaka, Noboru Kawabe, Tadashi Hashida, Teruyo Tsukada, Masako Izumi, Sadaki Inokuchi, Teruhisa Tanabe, Yuji Ikari
BACKGROUND: Targeted external heavy ion irradiation (THIR) of rabbit hearts 2 weeks after myocardial infarction (MI) reduced the vulnerability of fatal ventricular tachyarrhythmias (VT/VF) in association with the increased connexin43 (Cx43). Increased Cx43 was maintained for at least 1 year in normal rabbits, but the long-term antiarrhythmic effects in the MI model are unknown. We investigated the propensity for late potentials and VT/VF inducibility. METHODS: Intracoronary injection of microspheres was performed to induce non-transmural MI in anaesthetized 8 beagles...
February 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28154601/cardiac-resynchronization-therapy-device-implantation-in-a-patient-with-cardiogenic-shock-under-percutaneous-mechanical-circulatory-support
#19
Kyunghee Lim, Jin-Oh Choi, Jeong Hoon Yang, Seung-Jung Park, Sun Hwa Kim, Jiseok Kang, Hyun Sung Joh, Sun Hye Shin
65-year-old woman was admitted to our hospital with acute decompensated heart failure with reduced left ventricular ejection fraction and severe mitral regurgitation. Electrocardiography revealed a typical left bundle branch block and atrial fibrillation. Her condition deteriorated despite administering high-doses of inotropes and vasopressors. Pending a decision to therapy, venoarterial extracorporeal membrane oxygenation (ECMO) was performed when the patient underwent a cardiogenic shock. Although the hemodynamic status stabilized with ECMO support, weaning the patient from ECMO was not possible...
January 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28153633/comparison-of-the-presence-of-fragmented-qrs-complexes-in-the-inferior-versus-the-anterior-leads-for-predicting-coronary-artery-disease-severity
#20
Mehmet Eyuboglu, Ugur Kucuk, Omer Senarslan, Bahri Akdeniz
INTRODUCTION: Fragmented QRS complexes (fQRS) are a sign of myocardial scar and are associated with adverse outcomes and mortality in patients with coronary artery disease (CAD). However, little is known about the significance of fQRS or of their localization on electrocardiography (ECG) in patients without known CAD. We aimed to investigate the association between localization of fQRS on ECG and CAD severity in patients undergoing a first diagnostic coronary angiography. METHODS: We enrolled 135 consecutive patients who had a narrow fQRS on ECG and underwent a first diagnostic coronary angiography...
February 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
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