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https://www.readbyqxmd.com/read/29330222/increased-sympathovagal-imbalance-evaluated-by-heart-rate-variability-is-associated-with-decreased-cardiac-t2-and-lv-function-in-transfusion-dependent-thalassemia-patients
#1
Sintip Pattanakuhar, Arintaya Phrommintikul, Adisak Tantiworawit, Sasikarn Konginn, Somdet Srichairattanakool, Siriporn C Chattipakorn, Nipon Chattipakorn
Early detection of iron overload cardiomyopathy is an important strategy in decreasing the mortality rate of patients with transfusion dependent thalassemia (TDT).  Although cardiac magnetic resonance (CMR) T2* is effective in detecting cardiac iron deposition, it is costly and not generally available.  We investigated whether heart rate variability (HRV) can be used as a screening method of iron overload cardiomyopathy in TDT patients.  HRV, evaluated by 24-hour Holter monitoring, non-transferrin bound iron (NTBI), serum ferritin, left ventricular ejection fraction (LVEF), and CMR-T2* were determined...
January 12, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29327260/lifetime-study-in-mice-after-acute-low-dose-ionizing-radiation-a-multifactorial-study-with-special-focus-on-cataract-risk
#2
Claudia Dalke, Frauke Neff, Savneet Kaur Bains, Scott Bright, Deborah Lord, Peter Reitmeir, Ute Rößler, Daniel Samaga, Kristian Unger, Herbert Braselmann, Florian Wagner, Matthias Greiter, Maria Gomolka, Sabine Hornhardt, Sarah Kunze, Stefan J Kempf, Lillian Garrett, Sabine M Hölter, Wolfgang Wurst, Michael Rosemann, Omid Azimzadeh, Soile Tapio, Michaela Aubele, Fabian Theis, Christoph Hoeschen, Predrag Slijepcevic, Munira Kadhim, Michael Atkinson, Horst Zitzelsberger, Ulrike Kulka, Jochen Graw
Because of the increasing application of ionizing radiation in medicine, quantitative data on effects of low-dose radiation are needed to optimize radiation protection, particularly with respect to cataract development. Using mice as mammalian animal model, we applied a single dose of 0, 0.063, 0.125 and 0.5 Gy at 10 weeks of age, determined lens opacities for up to 2 years and compared it with overall survival, cytogenetic alterations and cancer development. The highest dose was significantly associated with increased body weight and reduced survival rate...
January 11, 2018: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/29325364/-the-efficacy-and-safety-of-coil-embolization-of-septal-branch-in-the-treatment-of-patients-with-obstructive-hypertrophic-cardiomyopathy
#3
H Liu, Q Wu, H W Tan, J Pang
Objective: To observe the clinical efficacy and safety of coil embolization of septal branch in the treatment of obstructive hypertrophic cardiomyopathy (HOCM). Methods: Eighteen patients with HOCM hospitalized in our department from September 2014 to October 2016 were enrolled in this study. There were 12 males and 6 females in this cohort and the age of patients ranged from 22 to 64 years old. Left ventricular outflow tract gradient (LVOTG) was derived from echocardiographic apical five-chamber view at pre-operation and at 48 hours and 6 months post operation...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29321708/holter-monitorisation-results-in-early-period-of-acute-ischemic-stroke
#4
Sefer Günaydin, Birgül Baştan, Hürtan Acar, Belgin Petek Balci, Aytül Mutlu, Özlem Çokar
Introduction: Paroxysmal atrial fibrillation (PAF) has a similar risk with persistent AF for ischemic stroke. Holter monitorization (HM) and other long-term monitorization methods increased the detection of PAF and short-lasting runs of tachyarrhythmias. Their classification as PAF and roles in the etiology of ischemic stroke is controversial. In this study, we aimed to investigate the frequency of any duration of PAF and clinical characteristics of the patients with acute ischemic stroke who have undergone 24-hrs HM...
December 2017: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/29321131/efficacy-of-ranolazine-in-patients-with-symptomatic-hypertrophic-cardiomyopathy-the-restyle-hcm-randomized-double-blind-placebo-controlled-study
#5
Iacopo Olivotto, Paolo G Camici, Piera Angelica Merlini, Claudio Rapezzi, Monica Patten, Vicent Climent, Gianfranco Sinagra, Benedetta Tomberli, Francisco Marin, Philipp Ehlermann, Lars S Maier, Alessandra Fornaro, Claudius Jacobshagen, Antonello Ganau, Luciano Moretti, Antonio Hernandez Madrid, Raffaele Coppini, Giorgio Reggiardo, Corrado Poggesi, Francesco Fattirolli, Luiz Belardinelli, Gianfranco Gensini, Alessandro Mugelli
BACKGROUND: The late sodium current inhibitor ranolazine reverses the main electrophysiological and mechanical abnormalities of human hypertrophic cardiomyopathy (HCM) cardiomyocytes in vitro, suggesting potential clinical benefit. We aimed to assess the effect of ranolazine on functional capacity, symptomatic status, diastolic function, and arrhythmias in HCM. METHODS AND RESULTS: In this multicenter, double-blind, phase 2 study, 80 adult patients with nonobstructive HCM (age 53±14 years, 34 women) were randomly assigned to placebo (n=40) or ranolazine 1000 mg bid (n=40) for 5 months...
January 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29315411/improving-procedural-and-one-year-outcome-after-contact-force-guided-pulmonary-vein-isolation-the-role-of-interlesion-distance-ablation-index-and-contact-force-variability-in-the-close-protocol
#6
Thomas Phlips, Philippe Taghji, Milad El Haddad, Michael Wolf, Sébastien Knecht, Yves Vandekerckhove, René Tavernier, Mattias Duytschaever
Aims: We have recently shown that a contact force (CF)-guided ablation protocol respecting region-specific criteria of lesion contiguity and lesion depth ('CLOSE' protocol) is associated with high incidence of acute durable pulmonary vein (PV) isolation (PVI) and a high single-procedure arrhythmia-free survival at 1 year. In the present study, we compared efficiency, safety, and efficacy of 'CLOSE'-guided PVI to conventional CF-guided PVI (CONV-CF). Methods and results: Fifty consecutive paroxysmal atrial fibrillation (AF) patients underwent PV encircling using a CF-sensing catheter targeting an interlesion distance (ILD) ≤6 mm and ablation index (AI) ≥400 and ≥550 at posterior and anterior wall ('CLOSE' group)...
January 4, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29314105/ambulatory-diagnostic-ecg-monitoring-for-syncope-and-collapse-an-assessment-of-clinical-practice-in-the-united-states
#7
David G Benditt, Wayne O Adkisson, Richard Sutton, Robin K Mears, Scott Sakaguchi
INTRODUCTION: Diagnostic ambulatory ECG (AECG) monitoring is widely used for evaluating syncope and collapse, and practice guidelines provide recommendations regarding optimal AECG device selection. However, whether physicians utilize AECGs in accordance with the pertinent guidelines is unclear. This study assessed utilization of AECG monitoring systems for syncope and collapse diagnosis by physicians in the United States. METHODS AND RESULTS: A quantitative survey was undertaken of physicians comprising multiple specialties (Emergency Room, n = 35; Primary care, n = 35; Hospitalists, n = 30; Neurologists, n = 30; non-implanting, n = 34 and implanting-Cardiologists, n = 35)...
January 4, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29313183/predictors-of-unknown-cancer-in-patients-with-ischemic-stroke
#8
Sonia Quintas, Jacobo Rogado, Pedro Gullón, Vilma Pacheco-Barcia, Julio Dotor García-Soto, Gemma Reig-Roselló, Rebeca Mondéjar, Ramón Colomer, Jose Vivancos
Stroke is the second most frequent neurologic finding in postmortem studies of cancer patients. It has also been described as the first expression of an occult cancer. We have studied patients diagnosed with cancer after an ischemic stroke (IS) and we analyze differences with non-tumor patients. Single cohort longitudinal retrospective study of patients admitted to our center with IS diagnosis from 1 January 2012 to 12 December 2014. All patients were followed for 18 months. Patients with transient ischemic infarction or cerebral hemorrhage, active cancer or in the last 5 years, inability to follow-up or absence of complete complementary study (holter-EKG, echocardiogram, and dupplex/angiography-CT) were excluded...
January 8, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29311442/usefulness-of-simultaneous-and-sequential-monitoring-of-glucose-level-and-electrocardiogram-in-monkeys-treated-with-gatifloxacin-under-conscious-and-nonrestricted-conditions
#9
Yu Yoshimatsu, Tomomichi Ishizaka, Katsuyoshi Chiba, Kazuhiko Mori
Drug-induced cardiac electrophysiological abnormalities accompanied by hypoglycemia or hyperglycemia increase the risk for life-threatening arrhythmia. To assess the drug-induced cardiotoxic potential associated with extraordinary blood glucose (GLU) levels, the effect of gatifloxacin (GFLX) which was frequently associated with GLU abnormality and QT/QTc prolongations in the clinic on blood GLU and electrocardiogram (ECG) parameters was investigated in cynomolgus monkeys (n=4) given GFLX orally in an ascending dose regimen (10, 30, 60 and 100 mg/kg)...
January 3, 2018: Experimental Animals
https://www.readbyqxmd.com/read/29305677/coupling-interval-variability-of-premature-ventricular-contractions-in-patients-with-different-underlying-pathology-an-insight-into-the-arrhythmia-mechanism
#10
Lennart J de Vries, Mihran Martirosyan, Ron T van Domburg, Sip A Wijchers, Tamas Géczy, Tamas Szili-Torok
PURPOSE: Coupling interval (CI) variability of premature ventricular contractions (PVCs) is influenced by the underlying arrhythmia mechanism. The aim of this study was to compare CI variability of PVCs in different myocardial disease entities, in order to gain insight into their arrhythmia mechanism. METHODS: Sixty-four patients with four underlying pathologies were included: idiopathic (n = 16), non-ischemic dilated cardiomyopathy (NIDCM) (n = 16), familial cardiomyopathy (PLN/LMNA) (n = 16), and post-MI (n = 16)-associated PVCs...
January 5, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29305187/cardiac-arrest-and-ventricular-arrhythmia-in-adults-with-ebstein-anomaly-and-left-ventricular-non-compaction
#11
Magdalena Kumor, Magdalena Lipczyńska, Elzbieta Katarzyna Biernacka, Anna Klisiewicz, Anna Wójcik, Marek Konka, Katarzyna Kożuch, Piotr Szymański, Piotr Hoffman
BACKGROUND: Ebstein anomaly is a complex, congenital heart defect that is associated with a variety of cardiac abnormalities. Studies found a similar sarcomere gene mutation in patients with Ebstein anomaly (EA) and patients with isolated left ventricular non-compaction (LVNC). AIM: We aimed to show the prevalence of LVNC and its potential relationship with severe cardiac events (VT - ventricular tachycardia, cardiac arrest) in adult patients with EA. METHODS: We conducted a retrospective search of our institutional database from 2010 to 2014 for patients with EA and reviewed patients' medical records (age, sex, clinical presentation, electrocardiographic, echocardiographic, and CMR - cardiac magnetic resonance features)...
January 2, 2018: Journal of Cardiology
https://www.readbyqxmd.com/read/29296950/targeted-inhibition-of-the-mapk-pathway-emerging-salvage-option-for-progressive-life-threatening-multisystem-lch
#12
Alexandra Kolenová, Raphaela Schwentner, Gunhild Jug, Ingrid Simonitsch-Klupp, Christoph Kornauth, Lukáš Plank, Júlia Horáková, Ivana Bodová, Tomáš Sýkora, Lucia Geczová, Wolfgang Holter, Milen Minkov, Caroline Hutter
Single-agent vemurafenib leads to a rapid and sustained clinical response in severe multisystem LCH but does not eradicate the disease.Longitudinal assessment of BRAF V600E during treatment shows that clinical remission can occur despite significant amounts of mutated BRAF.
February 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29288237/genomics-driven-precision-medicine-for-advanced-pancreatic-cancer-early-results-from-the-compass-trial
#13
Kyaw Lwin Aung, Sandra E Fischer, Robert E Denroche, Gun-Ho Jang, Anna Dodd, Sean Creighton, Bernadette Southwood, Sheng-Ben Liang, Dianne Chadwick, Amy Zhang, Grainne M O'Kane, Hamzeh Adel Amin Albaba, Shari Moura, Robert C Grant, Jessica K Miller, Faridah Mbabaali, Danielle Pasternack, Ilinca M Lungu, John M S Bartlett, Sangeet Ghai, Mathieu Lemire, Spring Holter, Ashton A Connor, Richard A Moffitt, Jen Jen Yeh, Lee Timms, Paul M Krzyzanowski, Neesha C Dhani, David W Hedley, Faiyaz Notta, Julie M Wilson, Malcolm J Moore, Steven Gallinger, Jennifer J Knox
PURPOSE: To perform real time whole genome sequencing (WGS) and RNA sequencing (RNASeq) of advanced pancreatic ductal adenocarcinoma (PDAC) to identify predictive mutational and transcriptional features for better treatment selection.  Experimental Design: Patients with advanced PDAC were prospectively recruited prior to first-line combination chemotherapy. Fresh tumor tissue was acquired by image guided percutaneous core biopsy for WGS and RNASeq. Laser capture microdissection was performed for all cases...
December 29, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29285621/five-year-clinical-outcomes-of-visually-guided-laser-balloon-pulmonary-vein-isolation-for-the-treatment-of-paroxysmal-atrial-fibrillation
#14
Bruno Reissmann, Thorsten Budelmann, Erik Wissner, Michael Schlüter, Christian-Hendrik Heeger, Shibu Mathew, Tilman Maurer, Christine Lemes, Thomas Fink, Andreas Rillig, Francesco Santoro, Johannes Riedl, Feifan Ouyang, Karl-Heinz Kuck, Andreas Metzner
BACKGROUND: Visually guided laser balloon (VGLB) ablation allows for pulmonary vein isolation (PVI) under direct endoscopic control. Short- and midterm clinical outcomes are in accordance with results of radiofrequency current (RFC) ablation for the treatment of paroxysmal atrial fibrillation (PAF). OBJECTIVE: The current study sought to assess the long-term clinical outcomes of VGLB-based PVI for PAF. METHODS: A total of 90 patients [60 ± 10 years; 33 (37%) female, left atrial diameter 42 ± 4 mm] with drug-refractory PAF underwent VGLB ablation...
December 28, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29284918/telemedicine-in-cardiology-perspectives-in-bosnia-and-herzegovina
#15
REVIEW
Nabil Naser, Salih Tandir, Edin Begic
Introduction: Aim of article was to present perspectives of telemedicine in the field of cardiology in Bosnia and Herzegovina. Material and methods: Article has descriptive character and present review of literature. Results: Information technology can have the application in the education of students, starting from basic medical sciences up to clinical subjects. Information technologies are used for ECG analysis, 24h ECG Holter monitoring, which detects different rhythm disorders...
December 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29282836/geometric-patterns-of-time-delay-plots-from-different-cardiac-rhythms-and-arrhythmias-using-short-term-ekg-signals
#16
Raúl A Borracci, José D Montoya Pulvet, Carlos A Ingino, Mario Fitz Maurice, Alfredo Hirschon Prado, Enrique Dominé
OBJECTIVE: To date, no systematic work has been intended to describe spatio-temporal patterns of cardiac rhythms using only short series of RR intervals, to facilitate visual or computerized-aided identification of EKG motifs for use in clinical practice. The aim of this study was to detect and classify eye-catching geometric patterns of Poincaré time-delay plots from different types of cardiac rhythms and arrhythmias using short-term EKG signals. METHODS: Approximately 150-300 representative, consecutive beats were retrieved from 24-h Holter registers of 100 patients with different heart rhythms...
December 27, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29282696/cardiac-biomarkers-release-in-preadolescent-athletes-after-an-high-intensity-exercise
#17
A Peretti, L Mauri, A Masarin, G Annoni, A Corato, A Maloberti, Cristina Giannattasio, G Vignati
INTRODUCTION: An elevation of cardiac troponins has been described in healthy athletes after endurance exercises. The clinical significance of this increase is unclear and the lack of awareness of this phenomenon may lead to inappropriate management of these subjects. AIM: We sought to determine wether an intensive cycling training could determine a biomarkers elevation. METHODS: We evaluated serum high sensitivity cardiac troponin T, NH(2)-terminal pro-brain natriuretic peptide, CK-MB and CK in 21 healthy male preadolescent athletes (age 9...
December 27, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/29279411/removal-of-perineuronal-nets-disrupts-recall-of-a-remote-fear-memory
#18
Elise Holter Thompson, Kristian Kinden Lensjø, Mattis Brænne Wigestrand, Anders Malthe-Sørenssen, Torkel Hafting, Marianne Fyhn
Throughout life animals learn to recognize cues that signal danger and instantaneously initiate an adequate threat response. Memories of such associations may last a lifetime and far outlast the intracellular molecules currently found to be important for memory processing. The memory engram may be supported by other more stable molecular components, such as the extracellular matrix structure of perineuronal nets (PNNs). Here, we show that recall of remote, but not recent, visual fear memories in rats depend on intact PNNs in the secondary visual cortex (V2L)...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29275886/the-extent-of-left-atrial-low-voltage-areas-included-in-pulmonary-vein-isolation-is-associated-with-freedom-from-recurrent-atrial-arrhythmia
#19
Dong Huang, Jing-Bo Li, Tarek Zghaib, Esra Gucuk Ipek, Muhammad Balouch, David D Spragg, Hiroshi Ashikaga, Harikrishna Tandri, Sunil K Sinha, Joseph E Marine, Ronald D Berger, Hugh Calkins, Saman Nazarian
BACKGROUND: The extent of left atrial (LA) baseline low-voltage areas (LVA-B), which may be a surrogate for fibrosis, is associated with recurrent atrial fibrillation (AF) after ablation. This study aimed to assess the relationship between the extent of LVA-B isolated by ablation (LVA-I) and AF recurrence. METHODS: The study cohort included 159 consecutive patients with drug-refractory AF who underwent an initial AF ablation with LA voltage mapping during sinus rhythm...
January 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29262473/-clinical-challenges-in-the-management-of-catecholaminergic-polymorphic-ventricular-tachycardia-in-children
#20
H Y Ge, X M Li, H Jiang, Y Zhang, H J Liu, X C Zheng, M T Li
Objective: Catecholaminergic polymorphic ventricular tachycardia (CPVT) accounts for up to 10%-15% sudden cardiac death (SCD) in the children and young population. This study aimed to assess the current situation and challenges in CPVT clinical diagnosis. Method: A retrospective review included 11 children (7 male patients) at the First Hospital of Tsinghua University clinically diagnosed with CPVT from June 2014 to July 2017. Each patient was evaluated with detailed history, physical examination, resting 12-lead electrocardiogram(ECG), 24-h Holter, exercise stress test, Doppler echocardiography and genetic test...
December 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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