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https://www.readbyqxmd.com/read/28545288/-enhanced-tachycardia-arrhythmia-in-two-patients-with-aconitine-intoxication-treated-with-atropine
#1
F Q Ma, Y Wang, C X Suo
No abstract text is available yet for this article.
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545282/-electrocardiogram-characteristics-of-patients-with-ventricular-arrhythmia-originating-from-the-distal-great-cardiac-vein
#2
R L Zheng, D P Zhou, J X Lin, Y C Li, J Li, J Li, R P Yin, J F Lin
Objective: To explore the electrocardiographic characteristics of patients with idiopathic ventricular arrhythmias (VAs) originating from different portions of distal great cardiac veins (DGCV). Methods: The study included 49 patients underwent successful RFCA of premature ventricular complex(PVCs)/ventricular tachycardia(VT) from different portions of the DGCV in our department from July 2009 to March 2016. The surface 12-lead electrocardiogram (ECG) and intraventricular ablation mapping features were analyzed...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545281/-pre-and-post-orthotopic-heart-transplantation-electrocardiogram-characteristics-of-998-patients
#3
H Q Guan, Z J Chen, Y Zhou, J Liu, W X Sun, J Yuan, Y H Liao, N G Dong, J P Liu, K G Feng, Q Zhang, X Zhao, C Qian, F Hu
Objective: To analyze pre- and post-operation electrocardiograms (ECGs) features of patients underwent orthotopic heart transplantation (OHT), and provide evidences for identifying and analyzing post OHT ECGs. Methods: Nine hundreds and ninty-eight pre- and post- OHT standard 12-leads ECGs from 110 consecutive patients, who underwent OHT in our hospital from May 2008 to May 2014, were analyzed. Results: The mean heart rate(HR)was (86.9±16.4) beats per minute before OHT, and (100.0±0.4) beats per minute after OHT...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28543389/coexistence-of-a-permanent-form-of-a-junctional-reciprocating-tachycardia-and-coronary-sinus-aneurysm-a-case-report
#4
Yuki Shimizu, Osamu Inaba, Masahiko Goya, Kenzo Hirao
A 58-year-old man with a long R-P' narrow QRS tachycardia underwent an electrophysiological study. The tachycardia was diagnosed as permanent form of junctional reciprocating tachycardia (PJRT), and the earliest atrial activation site during tachycardia was coronary sinus (CS) ostium. Radiofrequency ablation at the site was initially not successful because the tip impedance and temperature were unstable. After changing of the ablation catheter to that with contact force sensor, the accessory pathway was immediately ablated and the PJRT was no longer induced...
May 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28543096/response-of-lbbb-tachycardia-to-an-atrial-premature-beat-what-is-the-mechanism
#5
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Amitabh Poonia, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
May 23, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28542663/-periorbital-pallor-post-application-of-mydriatic-in-infants-with-hydrocephalus-associated-to-systemic-effects
#6
Jorge Luis Alvarado Socarras, Sandra Consuelo Rodríguez
Adequate pupil dilation is needed to evaluate some neonates at risk of developing illness during this stage. However, this procedure is not free of adverse effects, either local or systemic. One of these complications is the local vasoconstriction of the preterm baby’s skin following the application of mydriatic eye drops. OBJECTIVE: To describe secondary local and systemic complications of pharmacological pupil dilation in 2 newborns. Clinical case 1: Full term baby with diagnosis of low-birth weight and hydrocephalia...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28542662/-dengue-with-unusual-clinical-features-in-an-infant-case-report
#7
Nina Méndez-Domínguez, Kikey Achach-Medina, Yareni María Morales-Gual, Salvador Gómez-Carro
The state of Yucatan, in Mexico, is an endemic area for dengue. During 2015, there was an unpredicted increase in the number of expected cases of dengue fever. OBJECTIVE: To describe and analyse the clinical presentation, progress, and management of a case of dengue infection with non-specific clinical manifestations in an infant which resulted in a dengue shock syndrome. CASE REPORT: One month old infant admitted to hospital with a generalised rash and a history of being bitten by an insect...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28542320/the-ik1-kir2-1-channel-agonist-zacopride-prevents-and-cures-acute-ischemic-arrhythmias-in-the-rat
#8
Xu-Wen Zhai, Li Zhang, Yun-Fei Guo, Ying Yang, Dong-Ming Wang, Yan Zhang, Pan Li, Yi-Fan Niu, Qi-Long Feng, Bo-Wei Wu, Ji-Min Cao, Qing-Hua Liu
Arrhythmogenesis in acute myocardial infarction (MI) is associated with depolarization of resting membraine potential (RMP) and decrease of inward rectifier potassium current (IK1) in cardiomyocytes. However, clinical anti-arrhythmic agents that primarily act on RMP by enhancing the IK1 channel are not currently available. We hypothesized that zacopride, a selective and moderate agonist of the IK1/Kir2.1 channels, prevents and cures acute ischemic arrhythmias. To test this viewpoint, adult Sprague-Dawley (SD) rats were subjected to MI by ligating the left main coronary artery...
2017: PloS One
https://www.readbyqxmd.com/read/28541600/elevated-high-sensitivity-troponin-does-not-indicate-the-presence-of-coronary-artery-disease-in-patients-presenting-with-supraventricular-tachycardia
#9
Martin Murer, Florim Cuculi, Stefan Toggweiler, Vanessa Weberndoerfer, Mabelle Young, Richard Kobza
BACKGROUND: Patients with supraventricular tachycardia (SVT) and patients with coronary artery disease (CAD) often present with similar symptoms (chest pain, shortness of breath), similar electrocardiographic changes and elevated high-sensitivity troponin (cTn). It is not clear whether troponin reflects critical CAD or is elevated due to other causes in patients presenting with SVT. The aim of this study was to assess the role of elevated troponin in patients presenting with SVT. METHODS: Patients undergoing radiofrequency ablation (RFA) for SVT and simultaneous coronary angiography at the Heart Centre Lucerne, Switzerland between January 2010 and October 2014 were included in this analysis...
May 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28541596/effects-of-ivabradine-and-beta-blocker-therapy-on-dobutamine-induced-ventricular-arrhythmias
#10
Kadir Uğur Mert, Gurbet Özge Mert, Bektas Morrad, Senan Tahmazov, Fezan Mutlu, Yüksel Cavusoglu
BACKGROUND: Indirect evidences suggest that the If blocker (ivabradine) may exert an antiarrhythmic effect in ventricular myocardium in heart failure patients by inhibiting spontaneous depolarizations but the clinical relevance of this mechanism is not known. Dobutamine (DOB) has been known to increase heart rate and the incidence of cardiac arrhythmias. In this study, we evaluated the effects of ivabradine on DOB-induced ventricular arrhythmias and compared it with that of β blocker therapy...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28541507/current-management-and-clinical-outcomes-for-catheter-ablation-of-atrioventricular-nodal-re-entrant-tachycardia
#11
Jonathan Chrispin, Satish Misra, Joseph E Marine, John Rickard, Andreas Barth, Aravindan Kolandaivelu, Hiroshi Ashikaga, Harikrishna Tandri, David D Spragg, Jane Crosson, Ronald D Berger, Gordon Tomaselli, Hugh Calkins, Sunil K Sinha
Aims: Historical studies of ablation of atrioventricular nodal re-entrant tachycardia (AVNRT) have shown high long-term success rates and low complication rates. The potential impact of several recent practice trends has not been described. This study aims to characterize recent clinical practice trends in AVNRT ablation and their associated success rates and complications. Methods and results: Patients undergoing initial ablation of AVNRT between 1 July 2005 and 30 June 2015 were included in this study...
May 24, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28541006/focal-atrial-tachycardia-arising-from-the-inferior-vena-cava
#12
Yeong Min Lim, Jae Sun Uhm, Hui Nam Pak
The inferior vena cava (IVC) is a rare site of focal atrial tachycardia (AT). Here, we report a 20-year-old woman who underwent catheter ablation for anti-arrhythmic drug-resistant AT originating from the IVC. She had undergone open-heart surgery for patch closure of an atrial septal defect 17 years previously and permanent pacemaker implantation for sinus node dysfunction 6 years previously. The AT focus was at the anterolateral aspect of the IVC-right atrial junction, and it was successfully ablated under three-dimensional electroanatomical-mapping guidance...
July 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28540805/the-in-vivo-performance-of-a-novel-thermal-accelerant-agent-used-for-augmentation-of-microwave-energy-delivery-within-biologic-tissues-during-image-guided-thermal-ablation-a-porcine-study
#13
William Keun Chan Park, Aaron Wilhelm Palmer Maxwell, Victoria Elizabeth Frank, Michael Patrick Primmer, Jarod Brian Paul, Scott Andrew Collins, Kara Anne Lombardo, Shaolei Lu, Tiffany Marie Borjeson, Grayson Luderman Baird, Damian Edward Dupuy
OBJECTIVES: To investigate the effects of a novel caesium-based thermal accelerant (TA) agent on ablation zone volumes following in vivo microwave ablation of porcine liver and skeletal muscle, and to correlate the effects of TA with target organ perfusion. MATERIALS AND METHODS: This prospective study was performed following institutional animal care and use committee approval. Microwave ablation was performed in liver and resting skeletal muscle in eight Sus scrofa domesticus swine following administration of TA at concentrations of 0 mg/mL (control), 100 mg/mL and 250 mg/mL...
April 24, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540185/mitochondrial-myopathy-dysmorphism-exercise-induced-vomiting-and-tachycardia-the-mutation-m-4831g%C3%A2-%C3%A2-a
#14
Josef Finsterer, Sinda Zarrouk-Mahjoub
No abstract text is available yet for this article.
June 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28539561/predictors-of-mortality-rehospitalization-for-syncope-and-cardiovascular-events-in-patients-with-cardiovascular-syncope
#15
Tatsuya Onuki, Makoto Shoji, Yuya Nakamura, Ko Ogawa, Akinori Ochi, Koichiro Inokuchi, Shiro Kawasaki, Yoshimi Onishi, Yoshimasa Onuma, Yumi Munetsugu, Miwa Kikuchi, Hiroyuki Ito, Yoshino Minoura, Norikazu Watanabe, Taro Adachi, Mitsuharu Kawamura, Taku Asano, Kaoru Tanno, Youichi Kobayashi
BACKGROUND: Predictors of poor outcomes remain unknown for cardiovascular syncope patients after discharge.Methods and Results:We reviewed the medical records of consecutive patients admitted to hospital with cardiovascular syncope. We then performed Cox stepwise logistic regression analysis to identify significant independent factors for death, rehospitalization for syncope, and cardiovascular events. The study group was 206 patients with cardiovascular syncope. Of them, bradycardia was diagnosed in 50%, tachycardia in 27%, and structural disease in 23%...
May 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28539056/systemic-inflammation-and-arrhythmogenesis-a-review-of-mechanistic-and-clinical-perspectives
#16
Tulin Yalta, Kenan Yalta
In the recent decades, systemic inflammation, as a clinical phenomenon, has been the focus of extensive research particularly with regard to its potential association with a variety of cardiovascular diseases including atherogenesis and acute coronary syndromes. Within this context, there also exists a potential link between systemic inflammation and cardiac arrhythmogenesis in various aspects. Accordingly, systemic inflammation response as measured with inflammation markers (cytokines, etc) has been investigated in the setting of well-known cardiac arrhythmias including atrial fibrillation and ventricular tachycardia...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28536944/fluid-responsiveness-predicted-by-transcutaneous-partial-pressure-of-oxygen-in-patients-with-circulatory-failure-a-prospective-study
#17
Jingyuan Xu, Xiao Peng, Chun Pan, Shixia Cai, Xiwen Zhang, Ming Xue, Yi Yang, Haibo Qiu
BACKGROUND: Significant effort has been devoted to defining parameters for predicting fluid responsiveness. Our goal was to study the feasibility of predicting fluid responsiveness by transcutaneous partial pressure of oxygen (PtcO2) in the critically ill patients. METHODS: This was a single-center prospective study conducted in the intensive care unit of a tertiary care teaching hospital. Shock patients who presented with at least one clinical sign of inadequate tissue perfusion, defined as systolic blood pressure <90 mmHg or a decrease >40 mmHg in previously hypertensive patients or the need for vasopressive drugs; urine output <0...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28536896/helical-distribution-of-hypertrophy-in-patients-with-hypertrophic-cardiomyopathy-prevalence-and-clinical-implications
#18
Dafne Viliani, Eduardo Pozo, Norma Aguirre, Alberto Cecconi, María J Olivera, Paloma Caballero, Luis J Jiménez-Borreguero, Fernando Alfonso
Recently a novel pattern of helical distribution of hypertrophy has been described in patients with hypertrophic cardiomyopathy (HCM). Our aim was to determine its prevalence and potential implications in an unselected cohort. One-hundred- and eight consecutive patients diagnosed with HCM by cardiac magnetic resonance (CMR) were included (median clinical follow up of 1718 days). All clinical and complementary test information was prospectively collected. The presence of a helical pattern was assessed by a simple measurement of the maximal left ventricle (LV) wall thickness (LVWT) for each of the 17 classical LV segments and it was classified in one of three types according to its extension...
May 23, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28536891/myocardial-voltage-ratio-in-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy
#19
REVIEW
Andreas Müssigbrodt, Livio Bertagnolli, Elena Efimova, Jedrzej Kosiuk, Borislav Dinov, Kerstin Bode, Simon Kircher, Nikolaos Dagres, Michael Döring, Sergio Richter, Philipp Sommer, Daniela Husser, Andreas Bollmann, Gerhard Hindricks, Arash Arya
AIMS: This study aimed to analyze the influence of scar distribution between the endocardium and the epicardium in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C). METHODS: Electroanatomical mapping data were derived from our ARVD/C registry. Myocardial voltage distribution between the endocardium and the epicardium was analyzed in 28 patients (18 men, 49.9 ± 13.0 years) with previous ventricular tachycardia (VT) ablation and complete right ventricular maps...
May 23, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28534206/-3-d%C3%A2-mapping-and-ablation-of-recurrent-ventricular-tachycardia-in-patients-with-ischemic-cardiomyopathy
#20
REVIEW
Kristina Wasmer, Lars Eckardt
Catheter ablation of ventricular tachycardia (VT) is an established therapy for patients with ischemic cardiomyopathy to reduce implantable cardioverter-defibrillator (ICD) interventions and is a class I recommendation in international guidelines. Numerous publications confirm its value. Use of three-dimensional mapping systems with or without image integration is standard for ablation of complex arrhythmias. In patients with history of myocardial infarction they help to understand activation of reentrant circuits and are prerequisite for substrate mapping...
May 22, 2017: Herzschrittmachertherapie & Elektrophysiologie
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