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https://www.readbyqxmd.com/read/28647112/arrhythmogenic-right-ventricular-cardiomyopathy-in-the-boxer-dog-an-update
#1
REVIEW
Kathryn M Meurs
Arrhythmogenic right ventricular cardiomyopathy is an inheritable form of myocardial disease characterized most commonly by ventricular tachycardias, syncope, and sometimes systolic dysfunction and heart failure. A genetic mutation in the striatin gene has been identified in many affected dogs. Dogs with only one copy of the mutation (heterozygous) have a variable prognosis with many dogs remaining asymptomatic or successfully managed on antiarrhythmic drugs for years. Dogs that are homozygous for the mutation seem to have a worse prognosis...
June 21, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28645806/brugada-syndrome-a-general-cardiologist-s-perspective
#2
REVIEW
Marija M Polovina, Milica Vukicevic, Bojan Banko, Gregory Y H Lip, Tatjana S Potpara
Brugada syndrome (BrS) is one of the commonest inherited primary arrhythmia syndromes typically presenting with arrhythmic syncope or sudden cardiac death (SCD) due to polymorphic ventricular tachycardia and ventricular fibrillation precipitated by vagotonia or fever in apparently healthy adults, less frequently in children. The prevalence of the syndrome (0.01%-0.3%) varies among regions and ethnicities, being the highest in Southeast Asia. BrS is diagnosed by the "coved type" ST-segment elevation≥2mm followed by a negative T-wave in ≥1 of the right precordial leads V1-V2...
June 20, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28645472/bradycardia-syncope-and-left-ventricular-noncompaction-cardiomyopathy
#3
D Luke Glancy, Frederick R Helmcke, Allen P Hoang
A 55-year-old man with syncopal episodes was found to have sinus bradycardia at a rate of 37 beats/min, an episode of nonsustained ventricular tachycardia, and left ventricular noncompaction cardiomyopathy. After placement of a dual-chamber cardioverter defibrillator 4 years ago, he has had no further syncopal episodes, and there have been no defibrillator shocks.
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28645170/non-compaction-cardiomyopathy-and-incessant-supraventricular-tachycardia-an-unusual-first-presentation
#4
Cosima Jahnke, Ingo Paetsch, Gerhard Hindricks, Sergio Richter
No abstract text is available yet for this article.
June 22, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28644730/pulseless-ventricular-tachycardia-associated-with-chronic-ketamine-use
#5
Cheng-Chung Liu, Chun-Kuei Chen, Craig G Smollin, Jiun-Hao Yu, Chen-June Seak, Hsien-Yi Chen
No abstract text is available yet for this article.
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28644688/intraosseous-administration-of-antidotes-a-systematic-review
#6
Audrée Elliott, Pierre-André Dubé, Amélie Cossette-Côté, Laura Patakfalvi, Eric Villeneuve, Martin Morris, Sophie Gosselin
CONTEXT: Intraosseous (IO) access is an established route of administration in resuscitation situations. Patients with serious poisoning presenting to the emergency department may require urgent antidote therapy. However, intravenous (IV) access is not always readily available. OBJECTIVE: This study reviews the current evidence for IO administration of antidotes that could be used in poisoning. The primary outcome was mortality as a surrogate of efficacy. Secondary outcomes included hemodynamic variables, electrocardiographic variables, neurological status, pharmacokinetics outcomes, and adverse effects as defined by each article...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28644253/spectrum-of-autonomic-nervous-system-impairment-in-sj%C3%A3-gren-syndrome
#7
Brent P Goodman, Amy Crepeau, Priya S Dhawan, Julie A Khoury, Lucinda A Harris
OBJECTIVE: To describe the spectrum of autonomic dysfunction in a uniformly evaluated cohort of patients with Sjögren syndrome. METHODS: A series of 13 patients underwent a comprehensive evaluation for suspected autonomic impairment, including a neurological examination, autonomic testing, and laboratory studies. A diagnosis of Sjögren syndrome was established as the cause of autonomic dysfunction in all. Clinical features, findings on autonomic testing, and laboratory results are described...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644052/a-little-dab-will-do-ya-in-a-case-report-of-neuro-and-cardiotoxicity-following-use-of-cannabis-concentrates
#8
Shannon S Rickner, Dazhe Cao, Kurt Kleinschmidt, Steven Fleming
CONTEXT: The use of marijuana and cannabis concentrates is increasing, especially following decriminalization in several states. Psychosis and cardiotoxicity have been reported following cannabis use; however, myocardial injury from "dabbing" has not yet been reported. We report a case of hyperthermia, tachycardia, hypertension, severe agitation, neuro-, and cardiotoxicity following the use of "dabs" where there is concomitant confirmatory biological and sample testing. CASE DETAILS: A 17-year-old athletic man developed agitation requiring sedation and intubation for safety, with peak systolic blood pressures in the 190s and hyperthermia (to 102 °F)...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28643108/integrated-tk-td-modeling-for-drug-induced-concurrent-tachycardia-and-qt-changes-in-beagle-dogs
#9
Fan Wu, Tycho Heimbach, Panos Hatsis, Hai-Ming Tang, Raviprakash Dugyala, Qin Yue, Tao Wang, Handan He
Drug-induced cardiotoxicity, including tachycardia and QT prolongation, remains a major safety concern that needs to be identified and its risk mitigated in early stages of drug development. In the present study, an integrated toxicokinetic-toxicodynamic (TK-TD) modeling approach within a nonlinear mixed-effect modeling framework is applied to investigate concurrent abnormal heart rate and QT changes in three beagle dogs, using a Novartis internal compound (NVS001) as the case example. By accounting for saturable drug absorption, circadian rhythms, drug-effect tolerance, and nonlinear rate-dependency of QT interval, the dynamic TK-TD model captures the experimentally observed drug effects on heart rate and QT interval across a wide dosing range of NVS001 in beagle dogs...
June 22, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28642714/comparative-effectiveness-of-acupuncture-and-antiarrhythmic-drugs-for-the-prevention-of-cardiac-arrhythmias-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#10
Yanda Li, Hector Barajas-Martinez, Bo Li, Yonghong Gao, Zhenpeng Zhang, Hongcai Shang, Yanwei Xing, Dan Hu
Introduction and Objectives: This study was designed to systematically evaluate the effectiveness of acupuncture treatment for arrhythmia compared to existing drug therapy. Methods: Randomized controlled trials (RCTs) were identified through searches of the MEDLINE, CNKI, Embase, and Cochrane databases (1970 through 2016) and hand searches of cross-references from original articles and reviews. Clinical trials that randomized arrhythmia patients to acupuncture therapy vs. conventional drugs, sham acupuncture, or bed rest were included for analysis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28642118/current-state-of-the-art-for-cardiac-arrhythmia-gene-therapy
#11
REVIEW
J Kevin Donahue
Cardiac arrhythmias are a leading cause of morbidity and mortality. Currently available therapeutic options lack sufficient efficacy and safety. Gene therapy has been proposed for treatment of cardiac arrhythmias. This review will discuss the current state of development for arrhythmia gene therapy. So far, all published studies are short-term, proof-of-concept animal studies. Potential replacement of cardiac pacemakers has been shown for combination gene therapy using the HCN2 gene and either the gene for adenylate cyclase, the skeletal muscle isoform of the sodium channel, or a dominant negative mutant of the potassium channel responsible for resting membrane potential...
June 19, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28641797/sympathetic-denervation-to-treat-refractory-ventricular-tachycardia-do-we-have-the-nerve
#12
EDITORIAL
Edward P Gerstenfeld, Joshua D Moss
No abstract text is available yet for this article.
June 27, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28641581/thyrotoxic-and-pheochromocytoma-multisystem-crisis-a-case-report
#13
Kodai Suzuki, Takahito Miyake, Hideshi Okada, Fuminori Yamaji, Yuichiro Kitagawa, Tetsuya Fukuta, Ryu Yasuda, Yoshihito Tanaka, Haruka Okamoto, Sho Nachi, Tomoaki Doi, Takahiro Yoshida, Keisuke Kumada, Shozo Yoshida, Hiroaki Ushikoshi, Izumi Toyoda, Shinji Ogura
BACKGROUND: Thyrotoxic crisis and pheochromocytoma multisystem crisis are rare, life-threatening, emergency endocrine diseases with various clinical manifestations. Here we report a case of a patient who simultaneously developed thyrotoxic crisis and pheochromocytoma multisystem crisis and required intensive cardiovascular management. CASE PRESENTATION: A 60-year-old Asian man experienced nausea and vomiting, and subsequently developed dyspnea and cold sweats while farming...
June 23, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28641381/supraventricular-tachyarrhythmias-in-patients-with-a-persistent-left-superior-vena-cava
#14
Jongmin Hwang, Hyoung-Seob Park, Jun Kim, Jeong Su Kim, Jong Sung Park, Ki-Hun Kim, Myung Hwan Bae, Sang-Hee Lee, Young Soo Lee, Seongwook Han, Dae-Kyeong Kim, Tae-Joon Cha, Dong Gu Shin, Byung Chun Jung, Yoon-Nyun Kim
Aims: A persistent left superior vena cava (PLSVC) is the most common thoracic venous anomaly. This venous anomaly can impact the evaluation and treatment of supraventricular tachyarrhythmia (SVA). The aim of this study was to assess the proportion and characteristics of PLSVC in adult SVA patients. Methods and results: From July 2002 to July 2012, clinical and procedural data from databases of 10 cardiac electrophysiology laboratories in the Yeungnam region of the Republic of Korea were reviewed...
June 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28640102/complicated-atrial-tachycardia-due-to-atrial-fibrillation-originating-from-the-superior-vena-cava-a-case-report
#15
Huan Wang, Yunfan Wang, Jianwei Fu, Lihong Wang
INTRODUCTION: The superior vena cava (SVC) can act as an origin of atrial fibrillation (AF). The complex structure and special conductive properties of the SVC can result in complicated atrial tachycardia (AT), atrial flutter, or AF. SYMPTOMS AND CLINICAL FINDINGS: We report a case of the clinical observation of various kinds of AT and AF in 1 patient. Electrophysiological (EP) studies confirmed the muscle sleeve in the SVC to be the primary trigger and the only site or origin of tachycardia in this patient...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639986/chitinase-3-like-protein-1-ykl-40-before-and-after-therapy-in-supraventricular-arrhythmias
#16
Nikolaos Michelakakis, Georgios J Neroutsos, Anastasia S Perpinia, Dimitrios Farmakis, Eugenia G Voukouti, Apostolos J Karavidas, John Parissis, Maria T Georgiakaki, Vlassios N Pyrgakis
BACKGROUND: The inflammatory glycoprotein chitinase-3-like protein 1 or YKL-40 has emerged as a potential biomarker of cardiovascular diseases, including atrial fibrillation (AFib). We sought to assess YKL-40 in a wide spectrum of supraventricular arrhythmias besides AFib in comparison with other inflammatory markers. METHODS: We determined serum levels of YKL-40, C-reactive protein (CRP) and IL-6 in 70 patients with AFib, atrial flutter, atrioventricular node reentry tachycardia or other supraventricular tachycardias before, immediately after therapy and 1 week after therapy; 20 healthy patients served as controls...
July 20, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28639958/pediatric-jellyfish-envenomation-in-the-mediterranean-sea
#17
Miguel Glatstein, Dikla Adir, Bella Galil, Dennis Scolnik, Ayelet Rimon, Dikla Pivko-Levy, Christopher Hoyte
BACKGROUND: Several species of jellyfish native to the western Indian Ocean have entered the Mediterranean Sea through the Suez Canal. Since the late 1980s, each summer Rhopilema nomadica forms swarms as long as 100 km in the southeastern Levant and since the millennium aggregations of additional nonnative jellyfish have been sighted. The aim of this study was to evaluate children seen in the emergency department after jellyfish envenomations and to establish patterns of toxicity associated with this organism...
June 20, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28638576/a-classic-case-of-arrhythmogenic-right-ventricular-cardiomyopathy-arvc-and-literature-review
#18
Htun Latt, Thein Tun Aung, Chanwit Roongsritong, David Smith
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a relatively under-recognized hereditary cardiomyopathy. It is characterized pathologically by fibro-fatty infiltration of right ventricular (RV) myocardium and clinically by consequences of RV electrical instability. Timely intervention with device therapy and pharmacotherapy may help reduce the risk of arrhythmic events or sudden cardiac death. Here, we describe a classic case of a young adult with ARVC and a brief literature review. The patient presented with exertional palpitations and ARVC was suspected after his routine electrocardiogram (EKG) revealed symmetric T wave inversions and possible epsilon waves in right precordial leads...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28638575/danon-disease-for-the-cardiologist-case-report-and-review-of-the-literature
#19
Ryan S D'souza, Luisa Mestroni, Matthew R G Taylor
Danon disease is a rare, X-linked dominant genetic disorder that is caused by defects in the lysosome-associated membrane protein 2 (LAMP2) gene. It manifests predominantly in young males with a classic triad of cardiomyopathy, skeletal myopathy, and intellectual disability. Death from cardiac disease is the ultimate cause of demise in many patients if left untreated. Given the rarity of the condition, the natural history is poorly understood. Here, we present a case report on a 14-year-old Hispanic boy with Danon disease, highlighting major clinical events and diagnostic study findings over a six-year period from age of symptom onset to age of death...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28638423/relationship-between-plasma-levels-of-zinc-and-clinical-course-of-pneumonia
#20
Parviz Saleh, Alireza Sadeghpour, Mohammad Mirza-Aghazadeh-Attari, Mohammad Hatampour, Mohammad Naghavi-Behzad, Aidin Tabrizi
BACKGROUND: Pneumonia is a common disease and is more prevalent among children and the elderly. Zinc (Zn) is an essential substance for the human body and plays an important role in regulating the immune system. Studies have shown a possible relation between the Zn plasma levels and pneumonia. MATERIALS AND METHODS: In a cross-sectional study, 100 patients with pneumonia, who were referred to the Educational-Medical Centers of Tabriz University of Medical Sciences, were included in the study...
2017: Tanaffos
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