HeartRhythm Case Reports

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Inhibition of pacing in a dependent patient with an implantable cardioverter-defibrillator and a left ventricular assist device Michele Murphy, MD, Timothy.

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Volume 92, Issue 3, Pages (September 1987)

Inhibition of pacing in a dependent patient with an implantable cardioverter-defibrillator and a left ventricular assist device Michele Murphy, MD, Timothy.

Premature ventricular contraction–induced polymorphic ventricular tachycardia after leadless pacemaker implantation: A unique adverse effect of leadless.

Erroneous shock by an AED: Importance of obtaining AED tracing to prevent inappropriate ICD implantation Brian J. Cross, MD, Mark S. Link, MD, FHRS

A pseudo-sinus rhythm due to bigeminal ectopy with the focus in the right superior pulmonary vein Marina Arai, MD, Seiji Fukamizu, MD, PhD, Rintaro Hojo,

Isolated left bundle branch block progressing to complete heart block and asystole: A novel presentation of a desmin mutation Addison S. Gearhart, MD,

Inappropriate shock from delayed T-wave oversensing by a subcutaneous implantable cardioverter-defibrillator after septal myectomy for hypertrophic cardiomyopathy

Recurrent commotio cordis: Déjà vu

A case of paroxysmal atrioventricular block–induced cardiac arrest

Paradoxical reflex bradycardia after epinephrine infusion for arrhythmia induction in the electrophysiology laboratory Timothy R. Larsen, DO, Karoly.

Spectrum of cardiac manifestations from aconitine poisoning

Prakash G. Suryanarayana, MD, David S. Frankel, MD, FHRS, Francis E

Ben Ng, MBBS, Robert W. Giles, MBBS, Zal Dastur, BSc, Mark A

Is it bradycardia or something else causing symptoms?

Quinidine effective for the management of ventricular and atrial arrhythmias associated with Brugada syndrome Laura Halperin, BSc, Greg Mellor, MD, Mario.

Response to atrial arrhythmias in an atrioventricular synchronous ventricular leadless pacemaker: A case report in a paroxysmal atrial fibrillation patient

Santiago O. Valdés, MD, Andrew P. Landstrom, MD, PhD, Andrew E

Successful prenatal management of ventricular tachycardia and second-degree atrioventricular block in fetal long QT syndrome Akira Miyake, MD, Heima.

Dichotomous roles of TBX3 in the establishment of atrioventricular conduction pathways in the human heart Hoang H. Nguyen, MD, Dorothy K. Grange, MD,

Recurrent idiopathic polymorphic ventricular tachycardia/ventricular fibrillation successfully treated by cardiac sympathetic denervation Faisal Matto,

Claudio Hadid, MD, Sergio Gonzalez, MD, Jesús Almendral, MD, PhD

Use of intravenous sotalol in newborns with supraventricular tachycardia Hannah Kim, MD, Jennifer Wolff, PharmD, BCPPS, Aarti Dalal, DO, George F. Van.

Atrial pacing for the management of ventricular arrhythmias in Andersen-Tawil syndrome Opeyemi Fadahunsi, MBBS, MPH, Bilal Shaikh, DO, Andrew Rettew,

Atrioventricular block and pause-dependent torsade de pointes

Jonathan T. Jaffe, MD, Lee-Gardie Jean, MD, Richard J. Murray, MD

Unusual mechanism of complete atrioventricular block following atrial flutter ablation Frederic Georger, MD, Luc De Roy, MD, Camelia Sorea, Jean-Paul.

Bradley D. Brochu, MD, Ahmed Abdi-Ali, MD, Jeffrey Shaw, MD, F

T-wave oversensing due to left ventricle–only pacing in cardiac resynchronization therapy optimization algorithm Philippe André, MD, MSc, Benoit Plourde,

Elisa Ebrille, MD, Fernando M. Contreras-Valdes, MD, Peter J

Oral quinine sulfate for the treatment of electrical storm and prevention of recurrent shocks in Brugada syndrome after failed cilostazol therapy Jayaprakash.

Fetal paroxysmal atrial fibrillation during transplacental therapy for supraventricular tachycardia Takekazu Miyoshi, MD, PhD, Heima Sakaguchi, MD, PhD,

Early improvement of pacing threshold following primary right coronary angioplasty Fernando Pivatto Júnior, MD, Diego Chemello, MD, ScD, Geris Mazzutti,

Complete congenital heart block: A case of multilevel block

Emilio L. Garcia, MD, Robert Kim, MD, Steve S. Hsu, MD, FHRS, John N

An inferior myocardial infarction with conduction abnormalities

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Intravenous sotalol for conversion of atrial flutter in infants

Bundle branch reentry: A novel mechanism for sustained ventricular tachycardia in Chagas heart disease Alvaro V. Sarabanda, MD, PhD, Wagner L. Gali,

Santosh K. Padala, MD, Kenneth A. Ellenbogen, MD, FHRS, Jayanthi N

Mapping of a postinfarction left ventricular aneurysm–dependent macroreentrant ventricular tachycardia Elad Anter, MD, Jianqing Li, MD, Cory M. Tschabrunn,

Polymorphic ventricular tachycardia due to change in pacemaker programming Ihab Elsokkari, MBBCh, MMed, FRACP, Amir Abdelwahab, MBBCh, MSc, MD, Ratika.

Tachycardia-induced cardiomyopathy long after a pacemaker implantation for the treatment of unusual 2:1 atrioventricular block: What is the mechanism?

Haseeb Jafri, MD, Alan Cheng, MD, FHRS HeartRhythm Case Reports

Hiroko Asakai, MD, Laura Fenwick, BSc, Robert M. Hamilton, MD, FRCP(C)

Complexity of ranolazine and phenytoin use in an infant with long QT syndrome type 3 Reina Bianca Tan, MD, Sujata Chakravarti, MD, Melissa Busovsky-McNeal,

Rare desmin variant causing penetrant life-threatening arrhythmic cardiomyopathy Ad W.G.J. Oomen, MD, Katherine Jones, BSc, BTeach, Laura Yeates, BSc.

Successful treatment of tachycardia-induced cardiomyopathy secondary to dual atrioventricular nodal nonreentrant tachycardia using cryoablation Harold.

Prenatal diagnosis and management of junctional ectopic tachycardia

Unstable accelerated idioventricular rhythm in a neonate with congenital heart disease Jonathon Hagel, BMSc, MB, BCH, BAO, Carolina Escudero, BSc, MSc,

Polymorphic ventricular tachycardia associated with an episode of reflex syncope: Is this the needle in the haystack? Matthew A. Tester, Brooke C.D.

A surgeon with symptomatic ventricular tachycardia while operating and exacerbated by left lateral decubitus position: Too much of a stretch? Faris Khan,

Colin Yeo, MBBS, Martin Green, MD, Robert Lemery, MD, FHRS

Intermittent failure to capture: What is the mechanism?

Unusual severe hemodynamic failure associated with standard dose of intravenous flecainide for pharmacological cardioversion of atrial fibrillation Aref.

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Quinidine for Brugada syndrome: Panacea or poison?

Clinical problem solving: Maneuvering around a narrow complex tachycardia in a patient with Mustard repair for transposition of the great arteries Nicholas.

Philip M. Chang, MD, FHRS, CEPS, Akash R

HeartRhythm Case Reports

Early repolarization syndrome: A case report focusing on dynamic electrocardiographic changes before ventricular arrhythmias and genetic analysis Vern.

Parsing a perplexing paroxysmal pathway

Ablation of a symptomatic spontaneous automatic focus arising from an atriofascicular fiber Sandrine Venier, MD, Paul Khairy, MD, PhD, Bernard Thibault,

Intramural anterolateral mitral annular idiopathic ventricular tachycardia successfully ablated from the atrium Tawseef Dar, MD, Bharath Yarlagadda,

HeartRhythm Case Reports

Resolution of new left bundle branch block and ventricular tachycardia with immunosuppressive therapy in a patient with cardiac sarcoidosis Aatish Garg,

Bradycardia-induced polymorphic ventricular tachycardia after radiofrequency catheter ablation for right atrial flutter Matthew Zada, BMedSc(Hons), MBBS,

HeartRhythm Case Reports

Presentation transcript:

HeartRhythm Case Reports Ivabradine for treatment of tachyarrhythmias in children and young adults Christopher M. Janson, MD, Reina Bianca Tan, MD, V. Ramesh Iyer, MD, R. Lee Vogel, MD, Victoria L. Vetter, MD, Maully J. Shah, MBBS, FHRS HeartRhythm Case Reports DOI: 10.1016/j.hrcr.2019.03.007 Copyright © 2019 Heart Rhythm Society Terms and Conditions

Figure 1 A: A 12-lead electrocardiogram (ECG) demonstrating ectopic atrial tachycardia with variable atrioventricular conduction. B: Telemetry strips (lead II) demonstrating response to oral (PO) administration of ivabradine. At 1 hour, there is no change. At 1 hour, 25 minutes, there are increasing periods of sinus rhythm. At 1 hour, 28 minutes, there is sustained sinus rhythm. C: A 12-lead ECG demonstrating sinus rhythm, following first dose of ivabradine. HeartRhythm Case Reports DOI: (10.1016/j.hrcr.2019.03.007) Copyright © 2019 Heart Rhythm Society Terms and Conditions

Figure 2 A: Twelve-lead electrocardiogram (ECG) demonstrating sinus rhythm with right bundle branch block and with premature junctional beats in a pattern of bigeminy. B: Tracing from pacemaker download demonstrating sinus rhythm with premature junctional beats in a pattern of bigeminy. A small far-field ventricular electrogram is seen on the atrial channel. C: Twelve-lead ECG during recovery from an exercise stress test demonstrates runs of nonsustained junctional tachycardia. Observation of intermittent atrial-paced beats confirms ventriculoatrial (VA) dissociation during runs of tachycardia (device is programmed DDD 60–110). D: Tracing from pacemaker download demonstrating acute onset of tachycardia with VA dissociation. E: Inpatient telemetry graphic trends showing marked improvement in average heart rate (HR) after ivabradine initiation. HeartRhythm Case Reports DOI: (10.1016/j.hrcr.2019.03.007) Copyright © 2019 Heart Rhythm Society Terms and Conditions