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https://www.readbyqxmd.com/read/29049078/hearts-and-minds-real-life-cardiotoxicity-with-clozapine-in-psychosis
#1
George Joy, Eromona Whiskey, Mark Bolstridge, Alejandro Porras-Segovia, Theresa A McDonagh, Carla M Plymen, Sukhi S Shergill
BACKGROUND: Schizophrenia has a 1% prevalence in the population; 30% of these patients are treatment refractory. Clozapine is the only drug licensed to treat treatment refractory psychosis, but concerns about potential adverse effects result in only a proportion of eligible patients being treated. Although a well-documented neutropenia risk is mitigated by routine blood testing, cardiac toxicity is a commonly cited reason to discontinue clozapine treatment. However, there is little data on the real-life cardiac outcomes in those receiving clozapine treatment...
October 19, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29048771/catecholaminergic-polymorphic-ventricular-tachycardia-an-update
#2
REVIEW
Andrés R Pérez-Riera, Raimundo Barbosa-Barros, Marianne P C de Rezende Barbosa, Rodrigo Daminello-Raimundo, Augusto A de Lucca, Luiz C de Abreu
Catecholaminergic polymorphic ventricular tachycardia is a rare devastating lethal inherited disorder or sporadic cardiac ion channelopathy characterized by unexplained syncopal episodes, and/or sudden cardiac death (SCD), aborted SCD (ASCD), or sudden cardiac arrest (SCA) observed in children, adolescents, and young adults without structural heart disease, consequence of adrenergically mediated arrhythmias: exercise-induced, by acute emotional stress, atrial pacing, or β-stimulant infusion, even when the electrocardiogram is normal...
October 19, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29045956/-co-morbidity-of-vasovagal-syncope-and-postural-tachycardia-syndrome-with-allergic-diseases-in-children
#3
Y Liao, Q Y Zhang, H X Li, Y L Wang, P Liu, J B DU
OBJECTIVE: To explore the clinical characteristics of the co-morbidity of vasovagal syncope (VVS) and postural tachycardia syndrome (POTS) with allergic diseases in children. METHODS: A re-trospective analysis was launched to summarize the clinical data of children with VVS and POTS. They were divided into allergic group and non-allergic group according to the history of allergic diseases. The participants' clinical characteristics were compared between allergic group and non-allergic group using independent sample t test or rank sum test; composition comparisons were completed by Chi-square test...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29045952/-progress-in-diagnosis-and-management-of-syncope-in-children
#4
W R Xu, Y Liao, H F Jin, Q Y Zhang, C S Tang, J B DU
Syncope is a common emergency of children and adolescents, which has serious influence on the quality of life. Neurally-mediated syncope, including postural tachycardia syndrome, vasovagal syncope, orthostatic hypotension and orthostatic hypertension, is the main cause of syncope in children and adolescents. The main manifestations of neurally-mediated syncope are diverse, such as dizziness, headache, chest tightness, chest pain, pale complexion, fatigue, pre-syncope and syncope. Although the clinical manifestations are similar, each subtype of syncope has its hemodynamic feature and optimal treatment option...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29045633/ventricular-arrhythmia-and-sudden-cardiac-death-in-fabry-disease-a-systematic-review-of-risk-factors-in-clinical-practice
#5
Shanat Baig, Nicky C Edward, Dipak Kotecha, Boyang Liu, Sabrina Nordin, Rebecca Kozor, James C Moon, Tarekegn Geberhiwot, Richard P Steeds
Fabry disease (FD) is an X-linked lysosomal storage disorder caused by deficiency of α-galactosidase A enzyme. Cardiovascular (CV) disease is a common cause of mortality in FD, in particular as a result of heart failure and arrhythmia, with a significant proportion of events categorized as sudden. There are no clear models for risk prediction in FD. This systematic review aims to identify the risk factors for ventricular arrhythmia (VA) and sudden cardiac deaths (SCD) in FD. A systematic search was performed following PRISMA guidelines of EMBASE, Medline, PubMed, Web of Science, and Cochrane from inception to August 2016, focusing on identification of risk factors for the development of VA or SCD...
October 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29045596/the-relationship-between-cardiovascular-magnetic-resonance-imaging-measurement-of-extracellular-volume-fraction-and-clinical-outcomes-in-adults-with-repaired-tetralogy-of-fallot
#6
Kate Hanneman, Andrew M Crean, Bernd J Wintersperger, Paaladinesh Thavendiranathan, Elsie T Nguyen, Camilla Kayedpour, Rachel M Wald
Aims: Our aims were to explore cardiac magnetic resonance quantification of myocardial extracellular volume (ECV) in adults with repaired tetralogy of Fallot (rTOF) when compared with healthy controls and to investigate the association between ECV and major adverse cardiovascular outcomes. Methods and results: We prospectively recruited adults with rTOF (n = 44, 59% male, 32.9 ± 13.6 years) and evaluated right ventricular (RV) and left ventricular (LV) ECV by pre/post-gadolinium T1 measurements (modified Look-Locker inversion recovery technique) on a 1...
October 17, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29045344/atrial-fibrillation-and-cardiac-resynchronization-therapy
#7
Maurizio Gasparini, Paola Galimberti
PURPOSE OF REVIEW: Atrial fibrillation and heart failure are commonly encountered in current clinical practice. This review aims to revisit the complex interaction of these two common situations and the best treatment whenever both occurs, especially focusing on heart failure patients undergoing cardiac resynchronization therapy (CRT). RECENT FINDINGS: It has been recently confirmed that in patients undergoing cardiac resynchronization therapy, 100% biventricular pacing percentage should be pursued...
October 17, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29044787/intracardiac-ablation-for-atrioventricular-nodal-reentry-tachycardia-using-a-6%C3%A2-mm-distal-electrode-cryoablation-catheter-prospective-multicenter-north-american-study-icy-avnrt-study
#8
Peter Wells, Marc Dubuc, George J Klein, Dan Dan, Jean-Francois Roux, Evan Lockwood, Marcio Sturmer, David Dunbar, Paul Novak, Arun Rao, Brett J Peterson, Fred Kueffer, Kenneth A Ellenbogen
INTRODUCTION: Radiofrequency (RF) ablation is effective for slow pathway ablation, but carries a risk of inadvertent AV block requiring permanent pacing. By comparison, cryoablation with a 4 mm distal electrode catheter has not been reported to cause permanent AV block but has been shown to be less effective than RF ablation. We sought to define the safety and efficacy of a 6 mm distal electrode cryoablation catheter for slow pathway ablation in patients with atrioventricular nodal reentry tachycardia (AVNRT)...
October 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29044308/heart-conduction-system-defects-and-sustained-ventricular-tachycardia-complications-in-a-patient-with-granulomatosis-with-polyangiitis-a-case-report-and-literature-review
#9
Laryssa Passos Sarmento Santos, Victor Guerreiro Bomfim, Camila Fagundes Bezerra, Natália Vieira Costa, Rafael Barreto Paes de Carvalho, Ricardo Sobral de Carvalho, Rogério da Hora Passos, Olivia Carla Bomfim Boaventura, André Luiz Nunes Gobatto
Granulomatosis with polyangiitis is a rare systemic inflammatory disorder characterized by vasculitis of the small arteries, the arterioles and the capillaries together with necrotizing granulomatous lesions. This case reports on a young female patient, previously diagnosed with granulomatosis with polyangiitis, who was admitted to the intensive care unit with seizures and hemodynamic instability due to a complete atrioventricular heart block. The event was associated with multiple episodes of sustained ventricular tachycardia without any structural heart changes or electrolyte disturbances...
July 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29044024/-induction-of-atrioventricular-nodal-reentrant-tachycardia-by-radiofrequency-application
#10
Oscar A Pellizzón, Sebastián Nannini
Atrioventricular nodal reentrant tachycardia is the most common form of sustained regular narrow QRS complex tachycardia. It is caused by the presence of a dual atrioventricular nodal anatomy and physiology, with a fast and a slow pathway forming a substrate for re-entry. Electrophysiology study confirms the diagnosis when the tachycardia is induced, although in some cases this is not possible. Casuistry is here presented where the application of radiofrequency induced atrioventricular nodal reentrant tachycardia, when the electrophysiological study could not do it; we explain here its electrophysiological mechanism...
2017: Medicina
https://www.readbyqxmd.com/read/29043140/warfarin-related-nephropathy-in-a-patient-with-renal-pelvic-cancer
#11
Yuki Nagasako, Akiko Fujii, Satoshi Furuse, Katsunori Saito, Naobumi Mise
An 83-year-old Japanese man had a history of chronic heart failure due to bradycardia-tachycardia syndrome. He was admitted to our hospital because of macrohematuria and acute kidney injury (AKI), which were detected by an urologist at an outpatient visit. He had a history of recurrent macrohematuria and transurethral resection of bladder tumors twice in the preceding 2 years. He had been on warfarin for 12 years, with a stable international normalized ratio (INR) that was usually less than 2.1. Urinalysis revealed numerous red blood cells (RBCs) and mild proteinuria without RBC casts...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29042948/the-efficacy-of-radiofrequency-ablation-in-the-treatment-of-pediatric-arrhythmia-and-its-effects-on-serum-il-6-and-hs-crp
#12
Chunli Li, Libo Jia, Zhenzhou Wang, Ling Niu, Xinjiang An
The aim of this study was to investigate the efficacy of radiofrequency ablation in the treatment of pediatric arrhythmia and to assess the changes in serum interleukin-6 (IL-6) and hs-CRP levels after treatment. Hundred and six children with tachyarrhythmia who were admitted to Xuzhou Children's Hospital from November, 2014 to December, 2015 were recruited for study. The efficacies of radiofrequency in the treatment of different types of arrhythmia were analyzed. Successful ablation was found in 104 cases (98...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042423/low-prevalence-of-inappropriate-shocks-in-patients-with-inherited-arrhythmia-syndromes-with-the-subcutaneous-implantable-defibrillator-single-center-experience-and-long-term-follow-up
#13
Boris Rudic, Erol Tülümen, Veronika Berlin, Susanne Röger, Ksenija Stach, Volker Liebe, Ibrahim El-Battrawy, Christina Dösch, Theano Papavassiliu, Ibrahim Akin, Martin Borggrefe, Jürgen Kuschyk
BACKGROUND: Up to 40% of patients with transvenous implantable cardioverter-defibrillator (ICD) experience lead-associated complications and may suffer from high complication rates when lead extraction is indicated. Subcutaneous ICD may represent a feasible alternative; however, the efficacy of the subcutaneous ICD in the detection and treatment of ventricular arrhythmias in patients with hereditary arrhythmia syndromes has not been fully evaluated. METHODS AND RESULTS: Patients with primary hereditary arrhythmia syndromes who fulfilled indication for defibrillator placement were eligible for enrollment...
October 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29042382/drugs-and-life-threatening-ventricular-arrhythmia-risk-results-from-the-dare-study-cohort
#14
Abigail L Coughtrie, Elijah R Behr, Deborah Layton, Vanessa Marshall, A John Camm, Saad A W Shakir
OBJECTIVES: To establish a unique sample of proarrhythmia cases, determine the characteristics of cases and estimate the contribution of individual drugs to the incidence of proarrhythmia within these cases. SETTING: Suspected proarrhythmia cases were referred by cardiologists across England between 2003 and 2011. Information on demography, symptoms, prior medical and drug histories and data from hospital notes were collected. PARTICIPANTS: Two expert cardiologists reviewed data for 293 referred cases: 130 were included...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29042165/sustained-ventricular-tachycardia-after-thoracic-traumatism-in-a-patient-with-repaired-tetralogy-of-fallot
#15
Isabel Molina Borao, Javier Urmeneta Ulloa, Naiara Calvo Galiano, Daniel Palanca Arias, Lorenzo Jiménez Montañés, Marta López Ramón
No abstract text is available yet for this article.
October 14, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29041889/-multifactorial-prognostication-of-remote-outcomes-in-patients-with-non-st-elevation-acute-coronary-syndrome
#16
V O Tsygankova, G N Lozhkina, H M Khasanova, D A Kuimov, I Y Ragino, N V Maksimov, I M Voevoda
AIM: Creation of a mathematical nonlinear regression model for prognostication of 1 year outcomes after non-ST elevation acute coronary syndrome (NSTE ACS) for optimization of rehabilitation, secondary prevention, and personalized approach to treatment. MATERIAL AND METHODS: We included in this study 135 patients with confirmed NSTE ACS (mean age 59.1±6.1 years, 94 men and 41 women) admitted to hospital No 1 in Novosibirsk during 2010. During hospitalization and 1 year after discharge these patients received standard medical therapy...
August 2017: Kardiologiia
https://www.readbyqxmd.com/read/29040883/veno-arterial-extracorporeal-membrane-oxygenation-va-ecmo-for-emergency-cardiac-support
#17
Terri Sun, Andrew Guy, Amandeep Sidhu, Gordon Finlayson, Brian Grunau, Lillian Ding, Saida Harle, Leith Dewar, Richard Cook, Hussein D Kanji
PURPOSE: Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) may provide benefit to patients in refractory cardiac arrest and cardiogenic shock. We aim to summarize our center's 6-year experience with resuscitative VA-ECMO. MATERIALS AND METHODS: A retrospective medical record review (April 2009 to 2015) was performed on consecutive non-cardiotomy patients who were managed with VA-ECMO due to refractory in- or out-of-hospital cardiac (IHCA/OHCA) arrest (E-CPR) or refractory cardiogenic shock (E-CS) with or without preceding cardiac arrest...
October 12, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29038991/pathophysiological-and-therapeutic-implications-in-patients-with-atrial-fibrillation-and-heart-failure
#18
REVIEW
Felix Hohendanner, F R Heinzel, F Blaschke, B M Pieske, W Haverkamp, H L Boldt, A S Parwani
Heart failure and atrial fibrillation are common and responsible for significant mortality of patients. Both share the same risk factors like hypertension, ischemic heart disease, diabetes, obesity, arteriosclerosis, and age. A variety of microscopic and macroscopic changes favor the genesis of atrial fibrillation in patients with preexisting heart failure, altered subcellular Ca(2+) homeostasis leading to increased cellular automaticity as well as concomitant fibrosis that are induced by pressure/volume overload and altered neurohumoral states...
October 16, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/29038823/left-ventricular-twist-in-hypertrophic-cardiomyopathy-predictor-of-nonsustained-ventricular-tachycardia
#19
O Candan, C Gecmen, A Kalaycı, E Bayam, A Guner, S Gunduz, S Cersit, M Ozkan
BACKGROUND: We investigated the efficacy of clinical and classic echocardiographic parameters in predicting the occurrence of nonsustained ventricular tachycardia (NsVT) in patients with hypertrophic cardiomyopathy (HCM). METHODS: The study comprised 59 patients with HCM (47 male, [80%]; mean age, 48.48 ± 14.16 years). Clinical, electrocardiographic, as well as classic two-dimensional and speckle-tracking echocardiography (STE) data were collected. All patients had Holter monitoring within 24-72 h of the echocardiographic examination...
October 16, 2017: Herz
https://www.readbyqxmd.com/read/29038738/a-case-of-infective-endocarditis-and-spinal-epidural-abscess-caused-by-streptococcus-mitis-bacteremia
#20
Victoria S Byrd, Attila S Nemeth
A 57-year-old man presented with abdominal pain, hematemesis, and melena. He reported taking high-dose ibuprofen for back pain and drinking several 24-ounce beers daily. Examination was remarkable for icteric sclera, poor dentition, tachycardia, and crescendo-decrescendo murmur at right upper sternal border, radiating to the carotids. Labs revealed leukocytosis, anemia, thrombocytopenia, and elevated liver function tests and INR. Endoscopy demonstrated antral ulcers, duodenitis, and esophagitis. Blood cultures were obtained and broad-spectrum antibiotics started; cultures later grew Streptococcus mitis, and antibiotic coverage was narrowed...
2017: Case Reports in Infectious Diseases
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