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Clinical electrocardiography

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https://www.readbyqxmd.com/read/28928046/new-directions-for-ambulatory-monitoring-following-2017-hrs-ishne-expert-consensus
#1
Emanuela T Locati
The main role of ambulatory electrocardiography (AECG) in clinical practice is to detect and characterize the behavior of cardiac electrical activity during ordinary daily life activities. Because certain rhythm abnormalities may be infrequent and paroxysmal, and may occur only during sleep or in association with mental, emotional, or exercise-induced perturbation in cardiac function, AECG needs to be recorded over a long period of time, originally lasting 24h and now expanding up to several weeks and even to months...
August 12, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28925655/pleuritic-chest-pain-sorting-through-the-differential-diagnosis
#2
Brian V Reamy, Pamela M Williams, Michael Ryan Odom
Pleuritic chest pain is characterized by sudden and intense sharp, stabbing, or burning pain in the chest when inhaling and exhaling. Pulmonary embolism is the most common serious cause, found in 5% to 21% of patients who present to an emergency department with pleuritic chest pain. A validated clinical decision rule for pulmonary embolism should be employed to guide the use of additional tests such as d-dimer assays, ventilation-perfusion scans, or computed tomography angiography. Myocardial infarction, pericarditis, aortic dissection, pneumonia, and pneumothorax are other serious causes that should be ruled out using history and physical examination, electrocardiography, troponin assays, and chest radiography before another diagnosis is made...
September 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28918881/clinical-detection-of-hemodynamically-significant-isolated-secundum-atrial-septal-defect
#3
Robert L Geggel
The diagnosis of secundum atrial septal defect often is delayed. For 310 patients with hemodynamically significant secundum atrial septal defect undergoing closure over a 5-year period at a single medical center, this study reviews the symptoms prompting referral, limitations of physical examination and electrocardiography, and basis for initially missing the diagnosis.
September 14, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28900621/using-a-cloud-computing-system-to-reduce-door-to-balloon-time-in-acute-st-elevation-myocardial-infarction-patients-transferred-for-percutaneous-coronary-intervention
#4
Chi-Kung Ho, Fu-Cheng Chen, Yung-Lung Chen, Hui-Ting Wang, Chien-Ho Lee, Wen-Jung Chung, Cheng-Jui Lin, Shu-Kai Hsueh, Shin-Chiang Hung, Kuan-Han Wu, Chu-Feng Liu, Chia-Te Kung, Cheng-I Cheng
BACKGROUND: This study evaluated the impact on clinical outcomes using a cloud computing system to reduce percutaneous coronary intervention hospital door-to-balloon (DTB) time for ST segment elevation myocardial infarction (STEMI). METHODS: A total of 369 patients before and after implementation of the transfer protocol were enrolled. Of these patients, 262 were transferred through protocol while the other 107 patients were transferred through the traditional referral process...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28884631/takotsubo-cardiomyopathy-associated-with-paragonimiasis-westermani
#5
Ryouhei Matsuoka, Jun Muneuchi, Yusaku Nagatomo, Daisuke Shimizu, Seigo Okada, Chiaki Iida, Hiromitsu Shirouzu, Mamie Watanabe, Yasuhiko Takahashi, Haruhiko Maruyama
An 11-year-old boy collapsed during morning assembly at his junior high school. The automated external defibrillator detected ventricular fibrillation and provided shock delivery. He was successfully resuscitated and reverted to sinus rhythm. Electrocardiography showed ST-T elevation in the precordial leads. Echocardiography and angiography demonstrated akinesia of the apex and mid-wall of the left ventricle with preserved contraction of the basal segments, which suggested Takotsubo cardiomyopathy. The patient and his family had often eaten uncooked crab, and his father had a past history of infection with Paragonimiasis westermani...
September 8, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28871319/onset-ages-of-hepatopulmonary-syndrome-and-pulmonary-hypertension-in-patients-with-biliary-atresia
#6
Takehisa Ueno, Ryuta Saka, Yuichi Takama, Hiroaki Yamanaka, Yuko Tazuke, Kazuhiko Bessho, Hiroomi Okuyama
PURPOSE: Hepatopulmonary syndrome (HPS) and portopulmonary hypertension (PoPH) are extrahepatic complications of biliary atresia (BA). Their detection is sometimes delayed, which may result in missed opportunities for liver transplantation. The aim of this study was to determine the onset ages of HPS and PoPH in BA patients. METHODS: BA patients followed at our institution were identified. Patients visited our clinic for routine blood work, as well as regular electrocardiography, chest X-rays, and arterial blood gas tests...
September 4, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28845908/eplerenone-might-affect-atrial-fibrosis-in-patients-with-hypertension
#7
Masato Kawasaki, Takahisa Yamada, Yuji Okuyama, Takashi Morita, Yoshio Furukawa, Shunsuke Tamaki, Yusuke Iwasaki, Atsushi Kikuchi, Yasushi Sakata, Masatake Fukunami
BACKGROUND: Eplerenone is reported to reduce the development of atrial fibrillation (AF). The aim of this study was to clarify the mechanism of eplerenone for AF prevention from the viewpoint of P wave morphology, which is reported to correlate with atrial fibrosis. METHODS: Thirty-five patients with hypertension, who were randomized to receive eplerenone (n = 16) or amlodipine (n = 19) for 1 year, were evaluated. P wave signal-averaged electrocardiography (P-SAECG) was recorded at baseline and 1 year after entry, and P wave duration (Ad) and P wave dispersion (P-disp) were obtained...
August 28, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28843465/coronary-artery-calcium-imaging-in-the-robinsca-trial-rationale-design-and-technical-background
#8
REVIEW
Marleen Vonder, Carlijn M van der Aalst, Rozemarijn Vliegenthart, Peter M A van Ooijen, Dirkjan Kuijpers, Jan Willem Gratama, Harry J de Koning, Matthijs Oudkerk
RATIONALE AND OBJECTIVES: To describe the rationale, design, and technical background of coronary artery calcium (CAC) imaging in the large-scale population-based cardiovascular disease screening trial (Risk Or Benefit IN Screening for CArdiovascular Diseases [ROBINSCA]). MATERIALS AND METHODS: First, literature search was performed to review the logistics, setup, and settings of previously performed CAC imaging studies, and current clinical CAC imaging protocols of participating centers in the ROBINSCA trial were evaluated...
August 23, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28843368/echocardiographic-epicardial-adipose-tissue-thickness-is-associated-with-symptomatic-coronary-vasospasm-during-provocative-testing
#9
Susumu Nishio, Kenya Kusunose, Hirotsugu Yamada, Yukina Hirata, Takayuki Ise, Koji Yamaguchi, Shusuke Yagi, Takeshi Soeki, Tetsuzo Wakatsuki, Michio Shimabukuro, Masataka Sata
BACKGROUND: Epicardial adipose tissue (EAT) is the ectopic visceral fat surrounding the heart, which plays an important role in atherosclerosis of the coronary arteries via endothelial damage. Several studies have also suggested that vasospasm with angina (VSA) causes endothelial dysfunction in the coronary arteries. The aim of this study was to evaluate the thickness of EAT in the anterior interventricular groove (EAT-AIG) using echocardiography in patients who had no obstructive coronary artery disease and were suspected of having VSA...
August 23, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28840587/study-design-and-rationale-for-biomedical-shirt-based-electrocardiography-monitoring-in-relevant-clinical-situations-ecg-shirt-study
#10
Paweł Balsam, Piotr Lodziński, Agata Tymińska, Krzysztof Ozierański, Łukasz Januszkiewicz, Renata Główczyńska, Katarzyna Wesołowska, Michał Peller, Radosław Pietrzak, Tomasz Książczyk, Sonia Borodzicz, Łukasz Kołtowski, Mariusz Borkowski, Bożena Werner, Grzegorz Opolski, Marcin Grabowski
BACKGROUND: Today, the main challenge for researchers is to develop new technologies which may help to improve the diagnoses of cardiovascular disease (CVD), thereby reducing healthcare costs and improving the quality of life for patients. This study aims to show the utility of biomedical shirt-based electrocardiography (ECG) monitoring of patients with CVD in different clinical situations using the Nuubo® ECG (nECG) system. METHODS: An investigator-initiated, multicentre, prospective observational study was carried out in a cardiology (adult and paediatric) and cardiac rehabilitation wards ...
August 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28838547/arrhythmias-originating-in-the-atria
#11
REVIEW
Fabio Leonelli, Giuseppe Bagliani, Giuseppe Boriani, Luigi Padeletti
Atrial flutter, atrial tachycardias, and atrial fibrillation are the main sustained atrial tachycardias. Reentry, increased automaticity, and triggered activity are atrial arrhythmia's main mechanisms. Atrial flutter is the clinical and theoretical model of reentry. Its classification is based on the atrial chamber involved and the arrhythmia's anatomic path. Ablative procedures for atrial fibrillation have created several new reentrant tachycardias. Electrocardiography (ECG) identifies the site of origin of focal atrial tachycardias and the mechanism of these arrhythmias...
September 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/28830420/a-randomised-controlled-two-centre-open-label-study-in-healthy-japanese-subjects-to-evaluate-the-effect-on-biomarkers-of-exposure-of-switching-from-a-conventional-cigarette-to-a-tobacco-heating-product
#12
Nathan Gale, Mike McEwan, Alison C Eldridge, Neil Sherwood, Edward Bowen, Simon McDermott, Emma Holmes, Andrew Hedge, Stuart Hossack, Oscar M Camacho, Graham Errington, John McAughey, James Murphy, Chuan Liu, Christopher J Proctor, Ian M Fearon
BACKGROUND: Smoking is a leading cause of numerous human disorders including lung cancer, chronic obstructive pulmonary disease, and atherosclerotic cardiovascular disease. The development of modified risk tobacco products (MRTPs) has been suggested as a possible way to reduce the risks of tobacco smoking by reducing exposure to cigarette smoke toxicants. This study is designed to investigate whether biomarkers of such exposure are reduced when smokers switch from smoking commercial cigarettes to using either a novel or a commercially-available tobacco heating product (THP)...
August 22, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28794892/the-use-of-non-invasive-fetal-electrocardiography-in-diagnosing-second-degree-fetal-atrioventricular-block
#13
Igor Lakhno, Joachim A Behar, Julien Oster, Vyacheslav Shulgin, Oleksii Ostras, Fernando Andreotti
BACKGROUND: Complete atrioventricular block in fetuses is known to be mostly associated with autoimmune disease and can be irreversible if no steroids treatment is provided. Conventional methods used in clinical practice for diagnosing fetal arrhythmia are limited since they do not reflect the primary electrophysiological conduction processes that take place in the myocardium. The non-invasive fetal electrocardiogram has the potential to better support fetal arrhythmias diagnosis through the continuous analysis of the beat to beat variation of the fetal heart rate and morphological analysis of the PQRST complex...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28791852/cardiac-tumors-in-children-a-20-year-review-of-clinical-presentation-diagnostics-and-treatment
#14
Joanna Kwiatkowska, Anna Wałdoch, Jarosław Meyer-Szary, Piotr Potaż, Marek Grzybiak
BACKGROUND: The use of new imaging techniques has contributed significantly to earlier diagnosis and treatment of cardiac tumors. OBJECTIVES: The aim of the study was to analyze data from children with cardiac tumors in terms of clinical presentation, the role of noninvasive diagnostic procedures and the long-term outcome. MATERIAL AND METHODS: The data analyzed retrospectively concerned 30 children in whom cardiac tumors were diagnosed from January 1995 to July 2015...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28781205/psoas-compartment-and-sacral-plexus-block-via-electrostimulation-for-pelvic-limb-amputation-in-dogs
#15
Jonathon M Congdon, Pedro Boscan, Clara S S Goh, Marlis Rezende
OBJECTIVE: To assess the efficacy of psoas compartment and sacral plexus block for pelvic limb amputation in dogs. STUDY DESIGN: Prospective clinical study. ANIMALS: A total of 16 dogs aged 8±3 years and weighing 35±14 kg (mean±standard deviation). METHODS: Dogs were administered morphine (0.5 mg kg(-1)) and atropine (0.02 mg kg(-1)); anesthesia was induced with propofol and maintained with isoflurane. Regional blocks were performed before surgery in eight dogs with bupivacaine (2...
March 22, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28777849/-analysis-of-genotype-and-phenotype-correlation-of-myh7-v878a-mutation-among-ethnic-han-chinese-pedigrees-affected-with-hypertrophic-cardiomyopathy
#16
Bo Wang, Ruiqi Guo, Lei Zuo, Hong Shao, Ying Liu, Yu Wang, Yan Ju, Chao Sun, Lifeng Wang, Yanmin Zhang, Liwen Liu
OBJECTIVE: To analyze the phenotype-genotype correlation of MYH7-V878A mutation. METHODS: Exonic amplification and high-throughput sequencing of 96-cardiovascular disease-related genes were carried out on probands from 210 pedigrees affected with hypertrophic cardiomyopathy (HCM). For the probands, their family members, and 300 healthy volunteers, the identified MYH7-V878A mutation was verified by Sanger sequencing. Information of the HCM patients and their family members, including clinical data, physical examination, echocardiography (UCG), electrocardiography (ECG), and conserved sequence of the mutation among various species were analyzed...
August 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28771487/cardiorespiratory-dynamics-measured-from-continuous-ecg-monitoring-improves-detection-of-deterioration-in-acute-care-patients-a-retrospective-cohort-study
#17
Travis J Moss, Matthew T Clark, James Forrest Calland, Kyle B Enfield, John D Voss, Douglas E Lake, J Randall Moorman
BACKGROUND: Charted vital signs and laboratory results represent intermittent samples of a patient's dynamic physiologic state and have been used to calculate early warning scores to identify patients at risk of clinical deterioration. We hypothesized that the addition of cardiorespiratory dynamics measured from continuous electrocardiography (ECG) monitoring to intermittently sampled data improves the predictive validity of models trained to detect clinical deterioration prior to intensive care unit (ICU) transfer or unanticipated death...
2017: PloS One
https://www.readbyqxmd.com/read/28767580/metastatic-cardiac-tumor-presenting-as-atrial-fibrillation-in-a-previously-healthy-woman-a-case-report
#18
Chi-Wen Cheng, Ning-I Yang, Koon-Kwan Ng, Wen-Jin Cherng
RATIONALE: Metastatic cardiac tumor (MCT) is rare in clinical practice. MCT presenting initially as atrial fibrillation (AF) is even rarer. PATIENT CONCERNS: We report a 47-year-old woman with no previous medical history presented with intermittent palpitation for 3 days. DIAGNOSES: The electrocardiography showed AF with rapid ventricular rate. The transthoracic echocardiography showed a 4 × 4 cm mass occupying the left atrium (LA)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28751286/troponin-elevation-in-other-conditions-than-acute-coronary-syndromes
#19
Wafa Masri, Edouard Le Guillou, Eya Hamdi, Khaldoun Ghazal, Elise Lebigot, Claudine Cosson, Françoise Blonde Cynober, Patrice Therond
Troponin is a specific cardiac infarction isoform (TnIc, TnTc) and its determination is used for the diagnosis of myocardial infarction even with normal Electrocardiography. The increase of cardiac troponins occurs in a variety of clinical situations without an acute coronary syndrome (ACS), cardiologists and emergency physicians are often confronted with positive troponins that are difficult to interpret. Few data exist about the occurrence, the clinical characteristics and the predictive value in case of absence of ACS...
August 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28741721/left-ventricular-septal-hypertrophy-in-elderly-patients-with-aortic-stenosis
#20
Minako Katayama, Prasad M Panse, Christopher B Kendall, John R Daniels, Stephen S Cha, F David Fortuin, John P Sweeney, Patrick A DeValeria, Louis A Lanza, Marek Belohlavek, Hari P Chaliki
OBJECTIVES: Left ventricular (LV) septal hypertrophy in aortic stenosis raises diagnostic and therapeutic questions. However, the etiology and clinical consequences of this finding have not been well studied. The aim of this study was to perform a morphologic evaluation of the LV in aortic stenosis and to investigate the contributing factors and consequences of septal hypertrophy. METHODS: Patients with moderate or severe aortic stenosis were prospectively enrolled...
July 25, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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