287 results match your criteria Accelerated Idioventricular Rhythm

Seven day continuous ambulatory electrocardiographic telemetric study with pocket electrocardiographic recording device for detecting hydroxychloroquine induced arrhythmias.

J Family Med Prim Care 2022 Apr 18;11(4):1514-1518. Epub 2022 Mar 18.

Department of Emergency Medicine, All India Institute of Medical Science, Rishikesh, Uttarakhand, India.

Objective: The use of hydroxychloroquine (HCQ) for COVID-19 treatment and prophylaxis raised issues concerning its cardiac safety owing to the possibility of QT prolongation and arrhythmias. There was no study on long-term electrocardiographic telemetry monitoring of patients taking HCQ. We planned a continuous electrocardiographic Holter telemetry of these patients for 7 days. Read More

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Post-return of spontaneous circulation (ROSC) Accelerated Idioventricular Rhythm in the Setting of Severe Pancreatitis and Hyperkalemia.

Alex Y Koo Lei Gao

Cureus 2022 Mar 28;14(3):e23573. Epub 2022 Mar 28.

Cardiology, Highline Medical Center, Burien, USA.

A 73-year-old female with a history of coronary artery disease, hypertension, and diabetes presented to the emergency department in cardiac arrest. After cardiopulmonary resuscitation (CPR) and return of spontaneous circulation (ROSC), a post-ROSC electrocardiogram demonstrated Accelerated Idioventricular Rhythm (AIVR). The patient was found to have hyperkalemia due to anuric acute renal failure and antecedent severe pancreatitis. Read More

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Accelerated Idioventricular Rhythm Following Intraoral Local Anesthetic Injection During General Anesthesia.

Anesth Prog 2021 12;68(4):230-234

Okamura Dental Clinic, Morioka, Iwate, Japan.

Some anesthetic agents or adjunct medications administered during general anesthesia can cause an accelerated idioventricular rhythm (AIVR), which is associated with higher vagal tone and lower sympathetic activity. We encountered AIVR induced by vagal response to injection-related pain following local anesthetic infiltration into the oral mucosa during general anesthesia. A 48-year-old woman underwent extraction of a residual tooth root from the left maxillary sinus under general anesthesia. Read More

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December 2021

Comparison of in-hospital continuous electrocardiography versus recordable Holter monitoring in dogs with ventricular arrhythmias.

J Vet Emerg Crit Care (San Antonio) 2021 Nov 12;31(6):758-765. Epub 2021 Sep 12.

Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, Ohio, USA.

Objective: Determine the agreement between nonrecordable continuous ECG and Holter monitoring at estimating arrhythmia severity in hospitalized dogs.

Design: Prospective, observational, cohort study.

Setting: University teaching hospital. Read More

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November 2021

Clinical characteristics and therapeutic strategy of frequent accelerated idioventricular rhythm.

BMC Cardiovasc Disord 2021 09 8;21(1):425. Epub 2021 Sep 8.

Division of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.

Background: Accelerated idioventricular rhythm (AIVR) is often transient, considered benign and requires no treatment. This observational study aims to investigate the clinical manifestations, treatment, and prognosis of frequent AIVR.

Methods: Twenty-seven patients (20 male; mean age 32. Read More

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September 2021

Accelerated idioventricular rhythm in a healthy newborn: frightening but non-threatening.

Cardiol Young 2022 Mar 9;32(3):500-502. Epub 2021 Aug 9.

Department of Pediatric Cardiology, Hospital de Santa Cruz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal.

Accelerated idioventricular rhythm is a rare but benign form of ventricular tachycardia which might be challenging to differentiate from other more worrisome forms. We present the case of a healthy newborn diagnosed with an accelerated idioventricular rhythm which is spontaneously terminated without the need for medical therapy. Read More

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Idioventricular tachycardia and unstable ventricular escape rhythm in a canine patient with third-degree atrioventricular block.

J Vet Cardiol 2021 Aug 9;36:186-190. Epub 2021 Jun 9.

Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN, USA, 37996. Electronic address:

A 10-year-old female Labrador retriever was presented for evaluation and management of syncope. On presentation, idioventricular tachycardia (IT) was electrocardiographically evident but neither ventricular capture nor fusion complexes were recorded. Spontaneous termination of the IT resulted in prolonged ventricular asystole and revealed the underlying rhythm of third-degree atrioventricular block. Read More

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Accelerated Idioventricular Rhythm Following Transcatheter Self-Expandable Aortic Valve Implantation.

Circ Rep 2021 Jul 17;3(7):421-422. Epub 2021 Jun 17.

Division of Cardiology, Shimane University Faculty of Medicine Izumo Japan.

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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 09 25;85(10):1885-1891. 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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September 2021

An Unusual Case of Chest Pain With Wide Complex Arrhythmia-No Stents Needed.

JAMA Intern Med 2021 04;181(4):546-547

Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham.

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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

The clinical impact of untreated slow ventricular tachycardia in patients carrying implantable cardiac defibrillators.

J Interv Card Electrophysiol 2021 Oct 23;62(1):103-111. Epub 2020 Sep 23.

Arrhythmia Unit; Cardiology Department, Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias, Av. Roma, s/n, 33011, Oviedo, Asturias, Spain.

Introduction: The clinical impact of slow ventricular tachycardia (VT), occurring in patients carrying implantable cardiac defibrillators (ICD), is still under debate.

Methods And Results: From the UMBRELLA registry (multicenter, observational, and prospective study on patients with ICD), 659 episodes of slow VT were observed in 97 patients. Untreated slow VT (n = 93) had longer duration (23. Read More

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October 2021

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

Diagnosis of slow ventricular tachycardia by cardiac resynchronization devices utilizing a desynchronization detection algorithm.

J Electrocardiol 2020 Mar - Apr;59:140-146. Epub 2020 Feb 16.

BIOTRONIK SE & Co. KG, Berlin, Germany.

Some cardiac resynchronization therapy (CRT) devices equipped with left ventricular (LV) sensing can develop a specific desynchronization rhythm. Contemporary BIOTRONIK devices are designed with an algorithm called "CRT pacing interrupt" exclusively designed to record the occurrence of the specific form of desynchronization. We report six patients in whom the CRT pacing interrupt function permitted the diagnosis of slow ventricular tachycardia (VT). Read More

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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