251 results match your criteria Accelerated Idioventricular Rhythm


Small-conductance calcium-activated potassium current modulates the ventricular escape rhythm in normal rabbit hearts.

Heart Rhythm 2018 Nov 13. Epub 2018 Nov 13.

Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana. Electronic address:

Background: The apamin-sensitive small-conductance calcium-activated K (SK) current I modulates automaticity of the sinus node. I blockade by apamin causes sinus bradycardia.

Objective: The purpose of this study was to test the hypothesis that I modulates ventricular automaticity. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15475271183111
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http://dx.doi.org/10.1016/j.hrthm.2018.10.033DOI Listing
November 2018
7 Reads

Case Report of Accelerated Idioventricular Rhythm in the Interventional Radiology Suite: A Sticky Situation.

A A Pract 2018 Oct 26. Epub 2018 Oct 26.

From the Texas Children's Hospital, Houston, Texas.

Embolization is a well-established method of treatment of arteriovenous malformations. Most procedures are performed under general anesthesia due to the painful nature of some sclerosing agents, procedure duration, and need for immobilization to allow precise injection. Familiarity with the possible side effects of these agents is important for the anesthesiologist to facilitate timely and successful management of intra- and postprocedural complications. Read More

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http://Insights.ovid.com/crossref?an=02054229-900000000-9975
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http://dx.doi.org/10.1213/XAA.0000000000000908DOI Listing
October 2018
12 Reads

Acute Appendicitis as an Unexpected Cause of Inverted Takotsubo Cardiomyopathy.

J Emerg Trauma Shock 2018 Apr-Jun;11(2):143-145

Department of Emergency, Hautepierre Hospital, University Hospital of Strasbourg, Strasbourg, France.

Takotsubo cardiomyopathy (TTC), also known as transient left ventricular ballooning syndrome, is a stress-induced-cardiomyopathy. It is precipitated by emotional or physical stress and is characterized by normal coronary arteries and transient regional wall motion abnormalities. Variants of TTC include apical ballooning syndrome and, less commonly, mid, basal, and local variants. Read More

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http://www.onlinejets.org/text.asp?2018/11/2/143/233400
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http://dx.doi.org/10.4103/JETS.JETS_13_17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5994846PMC
June 2018
10 Reads

ECG Diagnosis: Accelerated Idioventricular Rhythm.

Perm J 2018 03;22

Senior Emergency Medicine Physician at the Santa Clara Medical Center in CA, and Clinical Assistant Professor of Emergency Medicine (Surgery) at Stanford University in Palo Alto, CA. He is the Medical Director for the Foothill College Paramedic Program in Los Altos, CA.

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http://www.thepermanentejournal.org/issues/2018/spring/6670-
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http://dx.doi.org/10.7812/TPP/17-173DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5882183PMC
March 2018
3 Reads

Accelerated idioventricular rhythm degenerating into bidirectional ventricular tachycardia following acute myocardial infarction.

Am J Emerg Med 2018 Apr 8;36(4):735.e1-735.e3. Epub 2018 Jan 8.

Scientific Research and Education Department, Aerospace Center Hospital, 15 Yuquan Road, Beijing, 100049, People's Republic of China.

Bidirectional ventricular tachycardia (BVT) is a rare ventricular tachyarrhythmia. It is usually regular, demonstrating a beat-to-beat alternation in the QRS frontal axis that varies between -20° to -30° and +110°. The tachycardia rate is typically between 140 and 180 beats/min and the QRS is relatively narrow, with a duration of 120 to 150 ms. Read More

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http://dx.doi.org/10.1016/j.ajem.2018.01.030DOI Listing
April 2018
10 Reads

Chest pain in a young female.

Am J Emerg Med 2018 Apr 11;36(4):735.e5-735.e8. Epub 2018 Jan 11.

Department of Emergency Medicine, San Antonio Uniformed Services Health Education Consortium, San Antonio, TX, United States.

Acute Coronary Syndrome (ACS) is a common diagnosis in the emergency department (ED), the most severe manifestation of which is ST elevation on electrocardiogram (ECG). ST elevation reflects obstruction of flow through the coronary arteries, most commonly due to coronary atherosclerotic plaque rupture. However, alternative causes of coronary obstruction causing ST elevation are possible. Read More

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http://dx.doi.org/10.1016/j.ajem.2018.01.034DOI Listing
April 2018
7 Reads

Dysrhythmias in Laypersons During Centrifuge-Simulated Suborbital Spaceflight.

Aerosp Med Hum Perform 2017 Nov;88(11):1008-1015

Introduction: There are limited data on cardiac dysrhythmias in laypersons during hypergravity exposure. We report layperson electrocardiograph (ECG) findings and tolerance of dysrhythmias during centrifuge-simulated suborbital spaceflight.

Methods: Volunteers participated in varied-length centrifuge training programs of 2-7 centrifuge runs over 0. Read More

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http://dx.doi.org/10.3357/AMHP.4910.2017DOI Listing
November 2017
16 Reads

Accelerated idioventricular rhythm requiring catheter ablation in a child: The dark side of a benign arrhythmia.

Ann Cardiol Angeiol (Paris) 2017 Nov 10;66(5):323-325. Epub 2017 Oct 10.

Department of Cardiology, Princess Grace Hospital, Pasteur Avenue, Monaco.

A 12 year-old boy, with no history of cardiac disease, was referred to our department for evaluation of an incessant accelerated idioventricular rhythm (AIVR) complicated with severe left ventricular (LV) dysfunction and cardiogenic shock. Extensive diagnostic work-up failed to reveal any structural heart disease. During electrophysiological study, AIVR originated from the right ventricular endocardial anterior wall and was successfully ablated using remote magnetic navigation. Read More

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http://dx.doi.org/10.1016/j.ancard.2017.09.002DOI Listing
November 2017
10 Reads

Sustained Accelerated Idioventricular Rhythm in a Centrifuge-Simulated Suborbital Spaceflight.

Aerosp Med Hum Perform 2017 Aug;88(8):789-793

Introduction: Hypergravitational exposures during human centrifugation are known to provoke dysrhythmias, including sinus dysrhythmias/tachycardias, premature atrial/ventricular contractions, and even atrial fibrillations or flutter patterns. However, events are generally short-lived and resolve rapidly after cessation of acceleration. This case report describes a prolonged ectopic ventricular rhythm in response to high G exposure. Read More

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http://dx.doi.org/10.3357/AMHP.4896.2017DOI Listing
August 2017
15 Reads

Unstable accelerated idioventricular rhythm in a neonate with congenital heart disease.

HeartRhythm Case Rep 2017 Feb 29;3(2):137-140. Epub 2016 Nov 29.

The Labatt Family Heart Centre, Department of Pediatrics, Hospital for Sick Children & University of Toronto, Toronto, Canada.

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http://dx.doi.org/10.1016/j.hrcr.2016.11.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5420059PMC
February 2017
7 Reads

ECG of the Month: Wide-QRS Tachycardias.

J La State Med Soc 2016 Nov-Dec;168(6):215-217. Epub 2016 Dec 15.

Practices Cardiology in Tavares, FL.

A 61-year-old man came from out of state to attend a football game. He felt well during the game, but when he stood up to leave, he became dizzy and dyspneic. The symptoms lasted 15 to 20 minutes, and when the paramedics arrived, they diagnosed an idioventricular rhythm and brought the patient to the emergency department where a 12-lead electrocardiogram (ECG) was recorded (Figure 1). Read More

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September 2017
5 Reads

Prenatal diagnosis and prognosis of accelerated idioventricular rhythm.

Ultrasound Obstet Gynecol 2017 Nov;50(5):624-631

Fetal Cardiology Unit, Department of Pediatrics, CHU Sainte-Justine, University of Montreal, Québec, Canada.

Objectives: As postnatal identification of accelerated idioventricular rhythm (AIVR) relies on specific electrocardiographic patterns, prenatal diagnosis of this condition is challenging and its true incidence is unknown. The objectives of this study were to evaluate the performance of prenatal ultrasonography in identifying intrauterine cardiocirculatory events linked to specific electrocardiographic signs of postnatal AIVR, including left or right ventricular origin, and to assess the prenatal prognosis of this arrhythmia.

Methods: We reviewed Doppler tracings from the superior vena cava/ascending aorta (SVC/Ao), ductus venosus (DV), ductus arteriosus (DA) and aortic isthmus (AoI), as well as simultaneous M-mode recordings of septal and left ventricular wall motions of fetuses diagnosed with AIVR from January 2004 to December 2014. Read More

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http://doi.wiley.com/10.1002/uog.17382
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http://dx.doi.org/10.1002/uog.17382DOI Listing
November 2017
19 Reads

Failure of an Implantable Defibrillator to detect transition from sinus tachycardia to slow ventricular tachycardia with 'Onset' discrimination algorithm activated.

Europace 2017 10;19(10):1694

Division of Cardiology, Emory University School of Medicine, STE F414, 1364 Clifton Road, NE, Atlanta, GA 30322, USA.

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http://dx.doi.org/10.1093/europace/euw175DOI Listing
October 2017
5 Reads

Is accelerated idioventricular rhythm a good marker for reperfusion after streptokinase?

Indian Heart J 2016 May-Jun;68(3):302-5. Epub 2016 Jan 12.

Professor and Head, Department of Cardiology, LTMMC & GH, Sion, Mumbai 22, India.

Background: Accelerated idioventricular rhythm (AIVR) is a common arrhythmia observed in patients with ST segment elevation myocardial infarction (MI). It is not clear how much value AIVR has in predicting successful reperfusion, since there have been conflicting data regarding this in the past. Streptokinase (STK) even today is the commonest thrombolytic agent used in the public health care set-up in India. Read More

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http://dx.doi.org/10.1016/j.ihj.2015.09.023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4911453PMC
May 2017
14 Reads

Intermittent accelerated idioventricular rhythm: a novel arrhythmia in lupus erythematosus.

Lupus 2016 Oct 16;25(11):1280-2. Epub 2016 Mar 16.

Hannover Medical School, Hannover, Germany

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http://dx.doi.org/10.1177/0961203316638935DOI Listing
October 2016
29 Reads

Computer misdiagnosis of AIVR as atrial fibrillation.

J Electrocardiol 2016 May-Jun;49(3):476-7. Epub 2016 Feb 10.

CHRISTUS St Vincent Regional Medical Center, Santa Fe, NM. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2016.02.007DOI Listing
May 2018
9 Reads

Anesthetic Management Guided by Transthoracic Echocardiography During Cesarean Delivery Complicated by Hypertrophic Cardiomyopathy.

A A Case Rep 2016 Mar;6(6):154-9

From the *Department of Women's & Obstetric Anesthesia, IWK Health Centre, Halifax, Nova Scotia, Canada; †Department of Pediatric Cardiology, IWK Health Centre, Halifax, Nova Scotia, Canada; ‡Department of Obstetrics and Gynaecology, Dalhousie University, Halifax, Nova Scotia, Canada; and §Division of Cardiology, Dalhousie University, Halifax, Nova Scotia, Canada.

We describe the management of a parturient woman with hypertrophic cardiomyopathy who developed a symptomatic accelerated idioventricular rhythm who required an urgent cesarean delivery at 32 weeks. Transthoracic echocardiography helped guide anesthetic management, including epidural dosing, fluid management, and phenylephrine infusion rates. This case demonstrates the application of transthoracic echocardiography to guide anesthetic management in a parturient woman at risk for cardiovascular compromise. Read More

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http://dx.doi.org/10.1213/XAA.0000000000000275DOI Listing
March 2016
8 Reads

Arrhythmias Seen in Baseline 24-Hour Holter ECG Recordings in Healthy Normal Volunteers During Phase 1 Clinical Trials.

J Clin Pharmacol 2016 07 11;56(7):885-93. Epub 2016 Jan 11.

Quintiles Cardiac Safety Services, Mumbai, India.

Regulatory agencies encourage sponsors to submit 24-hour ambulatory ECG data for assessing cardiac safety of new drugs, and some arrhythmias, hitherto considered rare, have been observed in some early-phase studies. Interpretation of these observations is difficult given the dearth of published data on the prevalence of cardiac arrhythmias seen during 24-hour continuous ECG monitoring in healthy volunteers (HV) from clinical trials. We analyzed drug-free ambulatory ECG recordings from 1273 HV (1000 males, 273 females; age 18-65 years) from 22 phase 1 studies that were analyzed in a core ECG laboratory; all subjects had normal screening ECGs. Read More

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http://dx.doi.org/10.1002/jcph.679DOI Listing
July 2016
30 Reads

Ventricular Tachycardia Precipitated by the Use of the Diet Supplement Hydroxycut Gummies.

Hosp Pharm 2015 Jul 31;50(7):615-8. Epub 2015 Jul 31.

Assistant Professor of Medicine, Section of Cardiac Electrophysiology, University of Florida Health Jacksonville , Florida.

Background: Dietary supplements have a long history of causing adverse effects. Ventricular arrhythmias have not been described with Hydroxycut Gummies.

Objective: To report a case of ventricular arrhythmia after prolonged use of a popular dietary supplement, Hydroxycut Gummies. Read More

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http://dx.doi.org/10.1310/hpj5007-615DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4589849PMC
July 2015
24 Reads

Traumatic Coronary Artery Dissection in a Young Woman after a Kick to Her Back.

Korean J Thorac Cardiovasc Surg 2015 Aug 5;48(4):281-4. Epub 2015 Aug 5.

Department of Cardiology, Erzurum Region Training and Research Hospital.

We present the case of a 38-year-old woman admitted to our outpatient clinic with accelerating back pain and fatigue following a kick to her back by her husband. Upon arrival, we detected ST segment elevation in the D1, aVL, and V2 leads and accelerated idioventricular rhythm. She had pallor and hypotension consistent with cardiogenic shock. Read More

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http://www.kjtcvs.org/journal/view.html?doi=10.5090/kjtcs.20
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http://dx.doi.org/10.5090/kjtcs.2015.48.4.281DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4541055PMC
August 2015
10 Reads

Accelerated Idioventricular Rhythm in a Child With Status Asthmaticus.

Pediatrics 2015 Aug 13;136(2):e527-9. Epub 2015 Jul 13.

Division of Pediatric Cardiology, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; and.

Acute asthma exacerbations occur relatively frequently in children. We present the case of a 4-year-old boy who was admitted to our hospital in status asthmaticus and found to have a wide complex rhythm while being treated with inhaled albuterol and intravenous methylprednisolone. This rhythm was diagnosed as accelerated idioventricular rhythm (AIVR), which carries a benign prognosis. Read More

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http://pediatrics.aappublications.org/content/pediatrics/ear
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http://pediatrics.aappublications.org/cgi/doi/10.1542/peds.2
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http://dx.doi.org/10.1542/peds.2015-0449DOI Listing
August 2015
8 Reads

Not Necessarily a Myocardial Infarction: New Left Bundle Branch Block.

Am J Med 2015 Sep 23;128(9):963-5. Epub 2015 Jun 23.

Division of Cardiovascular Medicine, Department of Medicine, University of California Davis Medical Center, Sacramento, CA.

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https://linkinghub.elsevier.com/retrieve/pii/S00029343150043
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http://dx.doi.org/10.1016/j.amjmed.2015.05.004DOI Listing
September 2015
13 Reads

Abnormal rhythms in patients without known cardiac disease after a first dose of fingolimod.

Mult Scler Relat Disord 2014 May 28;3(3):408-12. Epub 2013 Nov 28.

The Section of Cardiology, The Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. Electronic address:

Background: Fingolimod is used to reduce the rates of relapse and slow the progression of disability in relapsing-remitting multiple sclerosis (RRMS). In-office monitoring of patients for 6h after the first dose of fingolimod is currently recommended due to rare cardiac rhythm disturbances. The objective of this paper is to describe our experience with continuous electrocardiographic monitoring of patients with RRMS starting on fingolimod. Read More

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http://dx.doi.org/10.1016/j.msard.2013.11.001DOI Listing
May 2014
12 Reads

Postconditioning attenuates early ventricular arrhythmias in patients with high-risk ST-segment elevation myocardial infarction.

J Cardiol 2015 Jun 29;65(6):459-65. Epub 2015 Mar 29.

1st Department of Cardiology, University of Medical Sciences, Poznan, Poland.

Background: It has been demonstrated that postconditioning (postcon), brief episodes of ischemia during reperfusion period, in patients with ST-segment elevation myocardial infarction (STEMI) confers protection against ischemia-reperfusion injury and as a result, postcon might reduce infarct size. However, whether postcon may exert its beneficial effect on STEMI patients by reducing the occurrence of early malignant ventricular arrhythmias (VA) is still unknown. The aim of the study was to evaluate the influence of postcon on the presence of VA in early presenters with high-risk STEMI treated with primary coronary intervention (PCI). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09145087150007
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http://dx.doi.org/10.1016/j.jjcc.2015.02.010DOI Listing
June 2015
7 Reads

Accelerated idioventricular rhythm after left atrial tachycardia ablation as a marker of acute coronary ischemia.

HeartRhythm Case Rep 2015 May 17;1(3):99-102. Epub 2015 Feb 17.

Department of Cardiology, Cardiovascular Directorate, Guys and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, United Kingdom.

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http://dx.doi.org/10.1016/j.hrcr.2014.12.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5418551PMC
May 2015
10 Reads

Update on management of cardiac arrhythmias in acute coronary syndromes.

Authors:
T Willich A Goette

Minerva Cardioangiol 2015 Apr 22;63(2):121-33. Epub 2015 Jan 22.

Department of Cardiology and Intensive Care Medicine, St. Vincenz-Hospital, Paderborn, Germany -

This review summarizes different types of arrhythmias in patients with acute coronary syndromes and provides an overview of the available therapeutic options for acute care and management of critical arrhythmias. The different therapeutic options are depending on the origin and type of arrhythmia. The main common dominant mechanisms are intramural re-entry in ischemia and triggered activity in reperfusion. Read More

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April 2015
10 Reads

Ectopic automaticity induced in ventricular myocytes by transgenic overexpression of HCN2.

J Mol Cell Cardiol 2015 Mar 3;80:81-9. Epub 2015 Jan 3.

Department of Physiology, Kurume University School of Medicine, Kurume, Japan. Electronic address:

Hyperpolarization-activated cyclic nucleotide-gated channels (HCNs) are expressed in the ventricles of fetal hearts but are normally down-regulated as development progresses. In the hypertrophied heart, however, these channels are re-expressed and generate a hyperpolarization-activated, nonselective cation current (Ih), which evidence suggests may increase susceptibility to arrhythmia. To test this hypothesis, we generated and analyzed transgenic mice overexpressing HCN2 specifically in their hearts (HCN2-Tg). Read More

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http://dx.doi.org/10.1016/j.yjmcc.2014.12.019DOI Listing
March 2015
20 Reads

Accelerated idioventricular rhythm observed under total intravenous anesthesia using remifentanil, propofol, and rocuronium.

JA Clin Rep 2015 7;1(1):12. Epub 2015 Sep 7.

Department of Anesthesia, Osakafu Saiseikai Noe Hospital, Fruichi 1-3-25, Joto-ku, Osaka City, Osaka Japan.

Accelerated idioventricular rhythm (AIVR) during anesthesia has been described in several drug toxicity such as from cocaine, halothane, desflurane, and propofol. We present the case of a man who developed episodes of AIVR observed under total intravenous anesthesia (TIVA) using remifentanil, propofol, and rocuronium. AIVR during anesthesia was a benign phenomenon, and further examinations after surgery showed no structural heart disease and the daily occurrence of idioventricular arrhythmias. Read More

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http://dx.doi.org/10.1186/s40981-015-0016-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5818701PMC
September 2015
3 Reads

Heart rate and arrhythmia frequency of normal cats compared to cats with asymptomatic hypertrophic cardiomyopathy.

J Vet Cardiol 2014 Dec 31;16(4):215-25. Epub 2014 Oct 31.

MedVet Medical & Cancer Centers for Pets, 300 East Wilson Bridge Rd, Worthington, OH 43085, USA.

Objectives: To compare heart rate and arrhythmia frequency and complexity in a normal population of cats to a population of cats with hypertrophic cardiomyopathy (HCM).

Animals: 17 cats with HCM and 15 cats with normal echocardiograms.

Methods: Results for echocardiography, electrocardiography, Doppler blood pressure, and 24-h Holter monitoring were compared between groups. Read More

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http://dx.doi.org/10.1016/j.jvc.2014.10.001DOI Listing
December 2014
19 Reads

Idiopathic accelerated idioventricular rhythm or ventricular tachycardia originating from the right bundle branch: unusual type of ventricular arrhythmia.

Circ Arrhythm Electrophysiol 2014 Dec 6;7(6):1159-67. Epub 2014 Nov 6.

From the Division of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China (M.C., K.G., B.Y., H.C., W.J., F.Z., G.Y., M.L., X.L., K.C.); and II Medizinische Abteilung, Allgemeines Krankenhaus St. Georg, Hamburg, Germany (F.O.).

Background: Accelerated idioventricular rhythm (AIVR) or ventricular tachycardia (VT) originating from the right bundle branch (RBB) is rare and published clinical data on such arrhythmia are scarce. In this study, we will describe the clinical manifestations, diagnosis, and management of a cohort of patients with this novel arrhythmia.

Methods And Results: Eight patients (5 men; median age, 25 years) with RBB-AIVR/VT were consecutively enrolled in the study. Read More

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http://dx.doi.org/10.1161/CIRCEP.114.002112DOI Listing
December 2014
13 Reads

Accelerated idioventricular rhythm unmasking the brugada electrocardiographic pattern.

Ann Noninvasive Electrocardiol 2015 Jan 9;20(1):91-3. Epub 2014 Jul 9.

Division of Cardiology, Hospital Ramos Mejia, Buenos Aires, Argentina.

It has recently been reported that a high-degree right bundle branch block (RBBB) may conceal the electrocardiographic manifestations of the Brugada ECG pattern. An 82-year-old with recent onset palpitations was seen in clinic. The resting ECG showed sinus rhythm, high-degree RBBB, and an irregular idioventricular rhythm. Read More

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http://dx.doi.org/10.1111/anec.12177DOI Listing
January 2015
26 Reads

[Perioperative cardiovascular abnormality in elder patients with silent coronary heart disease].

Zhongguo Ying Yong Sheng Li Xue Za Zhi 2014 Mar;30(2):127-31

Objective: To explore the perioperative cardiovascular dysfunction and its relevance to age in patients with silent coronary heart disease (or silent myocardial ischemia), and explore the clinical treatment and recovery of perioperative arrhythmias.

Methods: One hundred and eighty cases were selected from selective surgery patients with silent myocardial ischemia (SMI). Among the cases, 130 patients older than 51 years old were divided into 51 - 60 year-old group, 61- 70 year-old group and 71 - 80 year-old group. Read More

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March 2014
8 Reads

Transient post-reperfusion left bundle branch block and accelerated idioventricular rhythm with paradoxical QRS narrowing.

J Electrocardiol 2014 Sep-Oct;47(5):705-7. Epub 2014 May 6.

Christus St. Vincent Hospital, Santa Fe, NM; Department of Medicine University of New Mexico Albuquerque, NM.

Accelerated idioventricular rhythm (AIVR) commonly follows coronary reperfusion and has been called a "reperfusion arrhythmia". Transient left bundle branch block (LBBB) is only rarely seen after interventional reperfusion and is usually considered a procedural complication. We report herein electrocardiograms (ECGs) in a case of acute lateral myocardial infarction which demonstrate both post-perfusion AIVR and a simultaneous transient LBBB with fusion complexes causing paradoxical QRS narrowing. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2014.04.025DOI Listing
May 2015
45 Reads

The effect of thrombolytic therapy on QT dispersion in acute myocardial infarction and its role in the prediction of reperfusion arrhythmias.

Niger J Clin Pract 2014 Mar-Apr;17(2):183-7

Department of Cardiology, Ankara Numune Training and Research Hospital, Ankara, Turkey.

Purpose: We aimed to determine the effect of intravenous thrombolytic therapy on QT dispersion (QTd) and its role in the prediction of reperfusion arrhythmias.

Materials And Methods: Twenty patients with acute myocardial infarction (MI) were enrolled in the study. Measurements of QTd were carried out prior to thrombolytic therapy and before discharge. Read More

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http://dx.doi.org/10.4103/1119-3077.127545DOI Listing
April 2014
4 Reads

Implantable cardioverter-defibrillators for treatment of sustained ventricular arrhythmias in patients with Chagas' heart disease: comparison with a control group treated with amiodarone alone.

Europace 2014 May 30;16(5):674-80. Epub 2014 Jan 30.

Clinical Arrhythmia and Pacemaker Unit, Instituto de Cardiologia do Distrito Federal (IC-DF), Fundação Universitária de Cardiologia (FUC), AOS 02 Bloco B apto 604, Brasília, 70660-022 DF, Brazil.

Aims: Evidence is inconclusive concerning the benefit of implantable cardioverter-defibrillators (ICDs) for secondary prevention of mortality in patients with Chagas' heart disease (ChHD). The aim of this study was to compare the outcomes of ChHD patients with life-threatening ventricular arrhythmias (VAs), who were treated either with ICD implantation plus amiodarone or with amiodarone alone.

Methods And Results: The ICD group [76 patients; 48 men; age, 57 ± 11 years; left ventricular ejection fraction (LVEF), 39 ± 12%] and the historical control group treated with amiodarone alone (28 patients; 18 men; age, 54 ± 10 years; LVEF, 41 ± 10%) had comparable baseline characteristics, except for a higher use of beta-blockers in the ICD group (P < 0. Read More

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http://dx.doi.org/10.1093/europace/eut422DOI Listing
May 2014
6 Reads

ECG of the month. Accelerated idioventricular rhythm during anesthesia.

J Am Vet Med Assoc 2013 Nov;243(9):1260-2

Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210.

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http://dx.doi.org/10.2460/javma.243.9.1260DOI Listing
November 2013
6 Reads

[Comparison of different electrocardiographic techniques for the detection of arrhythmias in horses].

Tierarztl Prax Ausg G Grosstiere Nutztiere 2013 ;41(5):305-14

Frauke Uhlendorf, Klinik für Pferde, Stiftung Tierärztliche Hochschule Hannover, Bünteweg 9, 30559 Hannover, E-Mail:

Objective: The aim of the study was to extend the range of the electrocardiographic examination in horses, evaluating the practicability of special electrocardiographic techniques (exercise- and Holter-ECG) and comparing these with more common techniques (resting-ECG) in equine medicine.

Material And Methods: Electrocardiographic examination (resting-ECG for 1 minute, exercise-ECG and Holter-ECG) was performed in 20 horses without any clinical or echocardiographic findings and in 80 patients with abnormal findings (valvular regurgitation and/or atrial fibrillation).

Results: In comparison with the resting-ECG, the exercise-ECG demonstrated more atrial and ventricular premature beats, while the Holter-ECG had a higher detection rate of 2nd degree atrioventricular or sinuatrial blocks, and of ventricular and atrial premature depolarisations (p < 0. Read More

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September 2015
11 Reads

Grouped beating in eisenmenger: successful localization and ablation of an accelerated idioventricular rhythm from within the purkinje system.

Indian Pacing Electrophysiol J 2013 May 25;13(3):126-30. Epub 2013 Jun 25.

Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, United Kingdom.

A 33-year old female with a background of Eisenmenger syndrome secondary to multiple congenital muscular ventricular septal defects (VSD) was admitted with a recent history of frequent intermittent palpitations. It was noted that she had an independent accelerated idioventricular rhythm (AIVR), with rates varying between 85-110bpm, which exhibited a repetitive grouped beating pattern. Although generally perceived as benign, in this case this rhythm was drug refractory, was associated with significant compromise to cardiac filling and output and progressed to haemodynamically intolerable sustained ventricular tachyarrhythmia. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3691392PMC
May 2013
6 Reads

[Accelerated idioventricular rhythm related to an esophageal anastomotic leakage].

Med Intensiva 2014 Apr 6;38(3):199. Epub 2013 Jul 6.

Departamento de Medicina, División de Enfermedades Cardiovasculares, Mayo Clinic Rochester, Minnesota, EE. UU.. Electronic address:

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http://dx.doi.org/10.1016/j.medin.2013.04.004DOI Listing
April 2014
6 Reads

Country cardiograms case 48.

Authors:
Charles Helm

Can J Rural Med 2013 ;18(3):99-100; discussion 109

Helm;

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February 2014
3 Reads

Circumventing a left ventricular assist device and implantable cardioverter defibrillator interaction: an alternative method of shielding.

Europace 2013 Dec 21;15(12):1689. Epub 2013 Apr 21.

Division of Cardiology, Cardiac Electrophysiology, University of North Carolina, Chapel Hill School of Medicine, 160 Dental Circle, CB 7075, Chapel Hill, 27599 North Carolina, USA.

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http://dx.doi.org/10.1093/europace/eut074DOI Listing
December 2013
13 Reads

Ventricular arrhythmias in children with attention deficit disorder--a symptom of autonomic imbalance?

Cardiol Young 2014 Feb 12;24(1):120-5. Epub 2013 Feb 12.

Department of Paediatrics, Caritas Krankenhaus, Bad Mergentheim, Germany.

Objectives: Potential side effects of stimulants for attention deficit disorder are in the focus of scientific discussions, intensified by the higher number of prescriptions. Children with known arrhythmias or other severe cardiac problems should not receive stimulants because of their sympathomimetic effects.

Methods: This is a retrospective analysis of 24-hour Holter electrocardiograms from 100 consecutive children with attention deficit disorder from January, 2006 to April, 2012. Read More

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http://dx.doi.org/10.1017/S104795111200234XDOI Listing
February 2014
3 Reads

Accelerated idioventricular rhythm associated with propranolol treatment in a child.

Cardiol J 2012 ;19(3):330-3

Department of Pediatric Cardiology, Kecioren Training and Research Hospital, Ankara, Turkey.

Accelerated idioventricular rhythm (AIVR) is a ventricular arrhythmia most commonly seen in adults with underlying cardiac disease. It is important to establish the diagnosis when it occurs to differentiate this benign phenomenon from dangerous ventricular tachycardia. We present the case of a healthy child who developed episodes of AIVR associated with propranolol treatment. Read More

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October 2012
12 Reads

Pharmacokinetic and pharmacodynamic profiling of a P2X7 receptor allosteric modulator GSK1482160 in healthy human subjects.

Br J Clin Pharmacol 2013 Jan;75(1):197-207

GlaxoSmithKline, Stevenage, UK.

Aims: This paper describes findings from the first-in-human study for GSK1482160, an orally available allosteric P2X7 receptor modulator. The study aimed to assess the pharmacokinetics (PK), pharmacodynamics (PD), safety and tolerability of the compound in healthy subjects.

Methods: Escalating single doses of up to 1 g were administered to healthy subjects in a single-blind and placebo-controlled fashion. Read More

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http://dx.doi.org/10.1111/j.1365-2125.2012.04320.xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3555059PMC
January 2013
31 Reads

Hyperkalemia-induced accelerated idioventricular rhythm in a patient with acute renal failure.

Ren Fail 2012 20;34(4):543-4. Epub 2012 Jan 20.

Electrolyte disorders can alter cardiac ionic currents and depending on the changes can promote proarrhythmic effects. Potassium (K(+)) is the most common intracellular cation related to arrhythmic disorders. Hyperkalemia is mainly seen in the setting of impaired renal function. Read More

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http://dx.doi.org/10.3109/0886022X.2011.653752DOI Listing
August 2012
67 Reads