274 results match your criteria Accelerated Idioventricular Rhythm


Myocardial infarction without coronary artery occlusion following mental stress.

J Res Med Sci 2021 27;26:12. Epub 2021 Feb 27.

Isfahan Clinical Toxicology Research Center, Department of Clinical Toxicology, Isfahan University of Medical Sciences, Isfahan, Iran.

Myocardial infarction (MI) with nonobstructive coronary arteries (MINOCA) is syndrome with clinical evidence of acute MI (AMI) with normal coronary arteries. This study reports the case of a 23-year-old single woman referring to the hospital with clinical manifestations of MI, with electrocardiography findings of slow ventricular tachycardia or accelerated idioventricular rhythm and atrioventricular dissociation, and high troponin levels, which was admitted with the diagnosis of MINOCA due to mental stress (grief) and was discharged after 4 days of monitoring and following stabilization of conditions and absence of symptoms. Other causes of MINOCA ruled out through imaging studies. Read More

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February 2021

Effects of Cardiac Massage and β-Blocker Pretreatment on the Success Rate of Cardiopulmonary Resuscitation Assessed by the Canine Ischemia/Reperfusion-Induced Ventricular Fibrillation Model.

Circ J 2021 Mar 25. Epub 2021 Mar 25.

Department of Pharmacology, Faculty of Medicine, Toho University.

Background: Effects of rapid electrical defibrillation and β-blockade on coronary ischemia/reperfusion-induced ventricular fibrillation (VF) during cardiopulmonary resuscitation (CPR) remain unknown.Methods and Results:After induction of VF by 30 min of ischemia followed by reperfusion, animals were treated with defibrillation alone (Group A, n=13), 2 min of open-chest cardiac massage followed by defibrillation (Group B, n=11), or the same therapy to Group B with propranolol (1 mg/kg, i.v. Read More

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Incidence of Cardiac Arrhythmias in Acute Myocardial Infarction Patients Undergoing Primary Percutaneous Coronary Intervention and Associated Outcomes During the First 24 Hours.

Cureus 2021 Jan 10;13(1):e12599. Epub 2021 Jan 10.

Statistics, National Institute of Cardiovascular Diseases, Karachi, PAK.

Background Acute myocardial infarction (AMI) is the most life-threatening manifestation of coronary artery diseases. The majority of deaths in AMI are due to arrhythmias. Therefore, the aim of this study was to evaluate the incidence and risk factors and outcomes of cardiac arrhythmias in AMI patients undergoing primary percutaneous coronary intervention (PCI) during the first 24 hours of the index hospitalization. Read More

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January 2021

Accelerated Idioventricular Rhythm: A Rare Case of Wide-Complex Dysrhythmia in a Teenager.

J Emerg Med 2021 Apr 21;60(4):e89-e94. Epub 2021 Jan 21.

Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Cardiology, Cincinnati Children's Hospital Medical Center/University of Cincinnati College of Medicine, Cincinnati, Ohio.

Background: Accelerated idioventricular rhythm (AIVR) is an uncommon and typically benign dysrhythmia with similarities to more malignant forms of ventricular tachycardia (VT). It is often seen in adults after myocardial infarctions, although it also arises in the newborn period, as well as in children with and without congenital heart disease.

Case Report: We describe a presentation of AIVR in an otherwise healthy 13-year-old girl, discovered on arrival to the pediatric emergency department in the setting of post-tonsillectomy bleeding. Read More

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Delayed occurrence of an accelerated idioventricular rhythm with alternating bundle branch block after myocardial infarction as predictor of sudden cardiac arrest: a case report.

Eur Heart J Case Rep 2020 Dec 17;4(6):1-7. Epub 2020 Nov 17.

Department of Cardiology, Schuechtermann Clinic, Heart Center Osnabrueck-Bad Rothenfelde, Ulmenallee 5-11, D-49214 Bad Rothenfelde, Germany.

Background: Accelerated idioventricular rhythm (AIVR) is known as reperfusion arrhythmia in the setting of acute myocardial infarction (AMI). In healthy individuals, it is usually considered to be benign. Alternating bundle branch block (ABBB) often progresses to complete atrioventricular block requiring permanent pacemaker implantation. Read More

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December 2020

A rare case with Uhl's anomaly whose hemodynamics largely dependent on right atrial hyper-contraction and a patent foramen ovale - A "double-edged sword" of ventricularized right atrium.

J Cardiol Cases 2020 Dec 9;22(6):305-308. Epub 2020 Sep 9.

Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.

We report the case of a 31-year-old man with Uhl's anomaly. Echocardiography revealed severely enlarged nonfunctioning right ventricle and unusual findings of the premature opening of the pulmonary valve along with substantial forward flow during late-diastole, indicating that pulmonary circulation was largely dependent on compensatory right atrial contraction. Moreover, right-to-left shunt through the patent foramen ovale (PFO) achieved systemic circulation at the expense of severe hypoxia. Read More

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December 2020

Novel coronavirus 19 (COVID-19) associated sinus node dysfunction: a case series.

Eur Heart J Case Rep 2020 Oct 8;4(FI1):1-6. Epub 2020 May 8.

Division of Cardiology, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.

Background: Novel coronavirus-19 disease (COVID-19) is associated with significant cardiovascular morbidity and mortality. To date, there have not been reports of sinus node dysfunction (SND) associated with COVID-19. This case series describes clinical characteristics, potential mechanisms, and short-term outcomes of COVID-19 patients who experience SND. Read More

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October 2020

Accelerated Idioventricular Rhythm in Inflammatory Bowel Disease: When the Gut Takes Charge.

CJC Open 2020 Sep 19;2(5):429-431. Epub 2020 May 19.

Department of Pediatrics, BC Children's Hospital, Vancouver, British Columbia, Canada.

Accelerated idioventricular rhythm (AIVR) is an uncommon but benign rhythm, seen most commonly in children. It is associated with reperfusion injury after myocardial infarction in adults. In children, it is usually seen as an idiopathic finding in the absence of heart disease. Read More

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September 2020

Incessant accelerated idioventricular rhythm mimicking preexcitation.

J Electrocardiol 2020 Jul - Aug;61:137-140. Epub 2020 Jun 11.

Arrhythmia Unit, Cardiology Department, Hospital La Luz - Quironsalud, Madrid, Spain.

ECG of patients with Wolf Parkinson White (WPW) syndrome may simulate other entities such as myocardial infarction, ventricular premature complexes, ventricular bigeminy, accelerated idioventricular rhythm, intermittent bundle branch block or electrical alternans. On the other hand, the opposite can also occur where these other conditions may simulate WPW. We present the case of a young patient referred for WPW ablation showing an incessant accelerated idioventricular rhythm mimicking preexcitation. Read More

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Complicated ventricular arrhythmia and hematologic myeloproliferative disorder in RIT1-associated Noonan syndrome: Expanding the phenotype and review of the literature.

Mol Genet Genomic Med 2020 07 12;8(7):e1253. Epub 2020 May 12.

Department of Pediatrics, Rush University Medical College, Chicago, IL, USA.

Background: Noonan syndrome is an autosomal dominant disorder secondary to RASopathies, which are caused by germ-line mutations in genes encoding components of the RAS mitogen-activated protein kinase pathway. RIT1 (OMIM *609591) was recently reported as a disease gene for Noonan syndrome.

Methods And Results: We present a patient with RIT1-associated Noonan syndrome, who in addition to the congenital heart defect, had monocytosis, myeloproliferative disorder, and accelerated idioventricular rhythm that was associated with severe hemodynamic instability. Read More

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Transient accelerated idioventricular rhythm after 1,4-butanediol exposure.

Clin Toxicol (Phila) 2020 11 5;58(11):1071-1072. Epub 2020 Mar 5.

Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia.

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November 2020

Accelerated idioventricular rhythm resulting in torsades de pointes and cardiac arrest in a child: successfully cryoablated in left'coronary cusp.

Cardiol Young 2020 Mar 20;30(3):418-421. Epub 2019 Dec 20.

Pediatric Cardiology, Bursa Medicana Hospital, Bursa, Turkey.

Known as a benign arrhythmia and normally requiring no specific treatment, accelerated idioventricular rhythm can rarely degenerate to a life-threatening arrhythmia. Here, we present a child with left coronary cusp-originating accelerated idioventricular rhythm, degenerating into torsades de pointes and resulting in cardiac arrest, which was ablated with a cryocatheter. An 11-year-old boy, followed due to asymptomatic accelerated idioventricular rhythm before, was referred to our department because he had experienced an aborted cardiac arrest during sleep. Read More

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Intravenous Sotalol for the Treatment of Ventricular Dysrhythmias in an Infant on Extracorporeal Membrane Oxygenation.

Pediatr Cardiol 2020 Feb 29;41(2):418-422. Epub 2019 Oct 29.

Division of Cardiology, Department of Pediatrics, Rush University Medical College, 1753 W. Congress Pkwy., Pavilion 654, Chicago, IL, 60612, USA.

Sotalol is a class III anti-arrhythmic agent with beta receptor blocking properties. Intravenous (IV) sotalol may be useful to treat refractory atrial and ventricular arrhythmias. A report on the efficacy and safety of IV sotalol in an infant on extracorporeal membrane oxygenation (ECMO) and continuous renal replacement therapy (CRRT), who developed refractory ventricular arrhythmias following surgery for congenital heart disease. Read More

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February 2020

Accelerated Idioventricular Rhythm Associated With Isoflurane Administration in a Foal: A Case Report.

J Equine Vet Sci 2019 09 9;80:64-68. Epub 2019 Jul 9.

Hospital Clínico Veterinario Complutense, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain; Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain; Specialist Equine Cardiology Services, Madrid, Spain. Electronic address:

A 2-day-old filly was referred to the hospital with abdominal pain and constipation. The foal presented tachycardia, tachypnea, hypoxemia, hyperlactatemia, and abdominal distension. Meconium impaction was diagnosed, and the filly underwent abdominal surgery. Read More

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September 2019

Beneficial effects of early administration of recombinant human B-type natriuretic peptide in ST-elevation myocardial infarction patients receiving percutaneous coronary intervention treatment.

Singapore Med J 2019 Dec 7;60(12):621-625. Epub 2019 Aug 7.

Department of Cardiology, Affiliated Zhongshan Hospital, Dalian University, Dalian, Liaoning, China.

Introduction: We aimed to evaluate the clinical performance of early administration of recombinant human B-type natriuretic peptide (rhBNP) to ST-elevation myocardial infarction (STEMI) patients receiving percutaneous coronary intervention (PCI) treatment.

Methods: In total, 185 patients diagnosed with STEMI were enrolled and randomised into either the placebo-treated (n = 88) or rhBNP-treated (n = 97) group. Patients were given either saline or rhBNP ten minutes before PCI and monitored with various cardiac parameters, including accelerated idioventricular rhythm, frequent ventricular premature beat (FVPB), ventricular tachycardia, systolic blood pressure, thrombolysis in myocardial infarction (TIMI) 3 gradation, corrected TIMI frame count (cTFC) and myocardial blush grade (MBG) 3 classification. Read More

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December 2019

Accelerated idioventricular rhythm.

Proc (Bayl Univ Med Cent) 2018 Oct 2;31(4):506-507. Epub 2018 Oct 2.

Section of Cardiology, Department of Medicine, Louisiana State University Health Sciences CenterNew OrleansLouisiana.

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October 2018

Contribution of Electrocardiographic Accelerated Ventricular Rhythm Alarms to Alarm Fatigue.

Am J Crit Care 2019 05;28(3):222-229

Sukardi Suba is a doctoral student, Department of Physiological Nursing, School of Nursing, University of California, San Francisco (UCSF), San Francisco, California. Cass Piper Sandoval is an adult critical care clinical nurse specialist and clinical nurse coordinator, Interventional Cardiology, UCSF Heart and Vascular Center, UCSF Health, San Francisco, California. Jessica K. Zègre-Hemsey is an assistant professor, School of Nursing and an adjunct assistant professor, Department of Emergency Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Xiao Hu is a professor, Department of Physiological Nursing, School of Nursing, and Department of Neurological Surgery, and a core member, Institute for Computational Health Sciences, UCSF-UC Berkeley Joint Graduate Program in Bioengineering, UCSF. Michele M. Pelter is an assistant professor, School of Nursing, and director, ECG Monitoring Research Lab, UCSF.

Background: Excessive electrocardiographic alarms contribute to "alarm fatigue," which can lead to patient harm. In a prior study, one-third of audible electrocardiographic alarms were for accelerated ventricular rhythm (AVR), and most of these alarms were false. It is uncertain whether true AVR alarms are clinically relevant. Read More

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Accelerated Idioventricular Rhythm at the Termination of an Episode of Vasospastic Angina.

Cureus 2019 Jan 16;11(1):e3895. Epub 2019 Jan 16.

Cardiology, West Virginia University, Morgantown, USA.

A 57-year-old male with gastroesophageal reflux disease and esophageal stricture with dilation presented as a cardiac catheterization lab activation for anterolateral ST-segment elevation myocardial infarction. He had suffered an unwitnessed syncopal episode after severe substernal chest pain. Electrocardiogram (ECG) showed anterolateral ST-segment elevation. Read More

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January 2019

Acute coronary syndrome after cannabis use: Correlation with quantitative toxicology testing.

Am J Emerg Med 2019 05 13;37(5):1007.e1-1007.e4. Epub 2019 Feb 13.

Department of Internal Medicine, Division of Cardiovascular Medicine, University of California Davis Medical Center, Sacramento, CA, United States of America.

Excluding ethanol, cannabis is the most commonly used drug in the United States and worldwide. Several published case series and reports have demonstrated an association between cannabis use and acute coronary syndrome (ACS). We report the first ever published case of ACS precipitated by cannabis use that was confirmed with concomitant rising quantitative plasma levels of 11-nor-9-carboxy-Δ9-tetrahydrocannabinol, a secondary metabolite of cannabis. Read More

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Prognostic Significance of Holter Monitor Findings in Patients With Light Chain Amyloidosis.

Mayo Clin Proc 2019 03 2;94(3):455-464. Epub 2019 Feb 2.

Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN. Electronic address:

Objective: To evaluate the prognostic impact of Holter findings in patients with light chain amyloidosis.

Patients And Methods: We evaluated 239 patients in whom light chain amyloidosis was diagnosed from January 1, 2010, through December 31, 2015, who underwent 24-hour Holter monitoring.

Results: Holter testing was done before stem cell transplant evaluation in 183 of the 239 patients (76. Read More

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

Heart Rhythm 2019 04 13;16(4):615-623. 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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Case Report of Accelerated Idioventricular Rhythm in the Interventional Radiology Suite: A Sticky Situation.

A A Pract 2019 Apr;12(8):273-276

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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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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ECG Diagnosis: Accelerated Idioventricular Rhythm.

Perm J 2018 ;22:17-173

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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December 2018

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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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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