Junctional Ectopic Tachycardia Follow-up

  • Author: M Silvana Horenstein, MD; Chief Editor: Stuart Berger, MD   more...
 
Updated: Nov 28, 2011
 

Prognosis

  • Spontaneous resolution of congenital junctional ectopic tachycardia (JET) has been observed in as many as one third of patients who reach age 1 year. Patients who continue to experience JET may do so at slower rates.
  • Curative attempts with radiofrequency catheter ablation therapy are probably warranted in patients with uncontrolled JET or if their size and age is sufficient to minimize procedural risks. Nevertheless, permanent AV block is a significant potential risk in the ablation of congenital JET.
  • Postoperative JET usually subsides after 36 hours without recurrence.
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Contributor Information and Disclosures
Author

M Silvana Horenstein, MD  Assistant Professor, Department of Pediatrics, University of Texas Medical School at Houston; Medical Doctor Consultant, Legacy Department, Best Doctors, Inc

M Silvana Horenstein, MD is a member of the following medical societies: American Academy of Pediatrics, American College of Cardiology, and American Medical Association

Disclosure: Nothing to disclose.

Coauthor(s)

Robert Murray Hamilton, MD, MSc, FRCPC  Section Head, Electrophysiology, Senior Associate Scientist, Physiology and Experimental Medicine, Labatt Family Heart Centre; Professor, Department of Pediatrics, University of Toronto Faculty of Medicine

Robert Murray Hamilton, MD, MSc, FRCPC is a member of the following medical societies: American Heart Association, Canadian Cardiovascular Society, Canadian Medical Association, Canadian Medical Protective Association, Cardiac Electrophysiology Society, Heart Rhythm Society, Ontario Medical Association, Pediatric Electrophysiology Society, Royal College of Physicians and Surgeons of Canada, and Society for Pediatric Research

Disclosure: Nothing to disclose.

Specialty Editor Board

Charles I Berul, MD  Professor of Pediatrics and Integrative Systems Biology, George Washington University School of Medicine; Chief, Division of Cardiology, Children's National Medical Center

Charles I Berul, MD is a member of the following medical societies: American Academy of Pediatrics, American College of Cardiology, American Heart Association, Cardiac Electrophysiology Society, Heart Rhythm Society, Pediatric and Congenital Electrophysiology Society, and Society for Pediatric Research

Disclosure: Johnson & Johnson Consulting fee Consulting

Mary L Windle, PharmD  Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

Hugh D Allen, MD  Professor, Department of Pediatrics, Division of Pediatric Cardiology and Department of Internal Medicine, Ohio State University College of Medicine

Hugh D Allen, MD is a member of the following medical societies: American Academy of Pediatrics, American College of Cardiology, American Heart Association, American Pediatric Society, American Society of Echocardiography, Society for Pediatric Research, Society of Pediatric Echocardiography, and Western Society for Pediatric Research

Disclosure: Nothing to disclose.

Gilbert Z Herzberg, MD  Assistant Professor, Department of Pediatrics, Section of Pediatric Cardiology, New York Medical College; Consulting Staff, Department of Pediatrics, Sound Shore Medical Center

Gilbert Z Herzberg, MD is a member of the following medical societies: American Academy of Pediatrics

Disclosure: Nothing to disclose.

Chief Editor

Stuart Berger, MD  Professor of Pediatrics, Division of Cardiology, Medical College of Wisconsin; Chief of Pediatric Cardiology, Medical Director of Pediatric Heart Transplant Program, Medical Director of The Heart Center, Children's Hospital of Wisconsin

Stuart Berger, MD is a member of the following medical societies: American Academy of Pediatrics, American College of Cardiology, American College of Chest Physicians, American Heart Association, and Society for Cardiac Angiography and Interventions

Disclosure: Nothing to disclose.

References

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Lead II rhythm strip of a surface ECG from a patient with postoperative JET. Atrial activity (P) is marked with blue lines and ventricular depolarization (QRS) is marked in red. Note the narrow QRS complexes due to their origin at the AV junction. Also note the dissociation between atrial and ventricular depolarizations where some of the QRS complexes seem to "follow" the P waves. However, this is not possible because the PR intervals are exceedingly short to allow conduction. In addition, some of the P waves fall after the QRS.
 
 
 
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