eMedicine Specialties > Cardiology > Arrhythmias

Lown-Ganong-Levine Syndrome: Follow-up

Author: Daniel M Beyerbach, MD, PhD,, Consulting Staff, Florida Electrophysiology Associates; Affiliate Clinical Assistant Professor of Biomedical Science, Florida Atlantic University, Regional Campus of University of Miami Miller School of Medicine
Coauthor(s): Christopher Cadman, MD, Director of Arrhythmia Service, Assistant Professor, Department of Internal Medicine, Division of Cardiology, University of New Mexico
Contributor Information and Disclosures

Updated: Sep 4, 2009

Follow-up

Further Inpatient Care

  • Admit patients in unstable condition to telemetry.
  • Institute pharmacologic therapy as dictated by symptoms and documented tachycardia.
  • Order consultations as discussed in Treatment.
  • Consider exercise treadmill testing if tachycardia is induced by exercise.

Further Outpatient Care

  • If no arrhythmia is documented on ECG or telemetry, and symptoms occur on a daily basis, consider Holter monitor with diary to document cardiac rhythm during symptomatic episodes.
  • If no arrhythmia is documented on ECG or telemetry, and symptoms occur less frequently than daily, consider an event recorder to document cardiac rhythm during symptomatic episodes.
  • If patient is in stable condition and does not require hospitalization, and if no tachyarrhythmia has been documented but symptoms are induced by exercise, consider outpatient exercise treadmill testing.
  • If symptoms persist, but no tachyarrhythmia can be documented by any of these methods, consider referral to an electrophysiologist for an outpatient EP study.

Inpatient & Outpatient Medications

Complications

  • Complications vary by the underlying condition.

Prognosis

  • No studies have shown an increased risk of sudden death or decreased survival for patients meeting criteria for diagnosis of LGL.

Patient Education

  • LGL is an outdated clinical diagnosis with no known unique underlying anatomic correlate. No specific risks are conferred with the diagnosis.
  • For excellent patient education resources, visit eMedicine's Heart Center. Also, see eMedicine's patient education article Supraventricular Tachycardia.

Miscellaneous

Medicolegal Pitfalls

  • Advise patients who have experienced syncope to not drive or operate vehicles of public transport for 6 months after the occurrence of the most recent episode of syncope, or until the cause of syncope has been identified and adequately treated. Within the United States, laws regarding restrictions on driving and operating vehicles of public transport after an episode of syncope vary by state.
 
Acknowledgments

Christopher Cadman, MD, contributed to the original version of this article.



More on Lown-Ganong-Levine Syndrome

Overview: Lown-Ganong-Levine Syndrome
Differential Diagnoses & Workup: Lown-Ganong-Levine Syndrome
Treatment & Medication: Lown-Ganong-Levine Syndrome
Follow-up: Lown-Ganong-Levine Syndrome
Multimedia: Lown-Ganong-Levine Syndrome
References
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References

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Further Reading

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Keywords

Lown-Gangong-Levine syndrome, LGL syndrome, Clerc-Levy-Critesco syndrome, enhanced atrioventricular nodal conduction, accelerated atrioventricular nodal conduction, short PR/normal QRS syndrome, short PR/narrow QRS syndrome, accessory pathway, WPW syndrome, Wolff-Parkinson-White syndrome

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Contributor Information and Disclosures

Author

Daniel M Beyerbach, MD, PhD,, Consulting Staff, Florida Electrophysiology Associates; Affiliate Clinical Assistant Professor of Biomedical Science, Florida Atlantic University, Regional Campus of University of Miami Miller School of Medicine
Daniel M Beyerbach, MD, PhD, is a member of the following medical societies: American College of Cardiology
Disclosure: Nothing to disclose.

Coauthor(s)

Christopher Cadman, MD, Director of Arrhythmia Service, Assistant Professor, Department of Internal Medicine, Division of Cardiology, University of New Mexico
Christopher Cadman, MD is a member of the following medical societies: American College of Cardiology and Phi Beta Kappa
Disclosure: Nothing to disclose.

Medical Editor

Justin D Pearlman, MD, PhD, ME, MA, Director of Advanced Cardiovascular Imaging, Professor of Medicine, Professor of Radiology, Adjunct Professor, Thayer Bioengineering and Computer Science, Dartmouth-Hitchcock Medical Center
Justin D Pearlman, MD, PhD, ME, MA is a member of the following medical societies: American College of Cardiology, American College of Physicians, American Federation for Medical Research, International Society for Magnetic Resonance in Medicine, and Radiological Society of North America
Disclosure: Nothing to disclose.

Pharmacy Editor

Francisco Talavera, PharmD, PhD, Senior Pharmacy Editor, eMedicine
Disclosure: eMedicine Salary Employment

Managing Editor

Frank M Sheridan, MD, Cardiology, Providence Everett Medical Center
Frank M Sheridan, MD is a member of the following medical societies: American College of Cardiology, American Heart Association, and Society for Cardiac Angiography and Interventions
Disclosure: Nothing to disclose.

CME Editor

Amer Suleman, MD, Consultant in Electrophysiology and Cardiovascular Medicine, Department of Internal Medicine, Division of Cardiology, Medical City Dallas Hospital
Amer Suleman, MD is a member of the following medical societies: American College of Physicians, American Heart Association, American Institute of Stress, American Society of Hypertension, Federation of American Societies for Experimental Biology, Royal Society of Medicine, and Society of Cardiac Angiography and Interventions
Disclosure: Nothing to disclose.

Chief Editor

Jeffrey N Rottman, MD, Professor of Medicine and Pharmacology, Director, Clinical Cardiac Electrophysiology Fellowship Program, Vanderbilt University School of Medicine; Chief, Department of Cardiology, Nashville Veterans Affairs Medical Center
Jeffrey N Rottman, MD is a member of the following medical societies: American Heart Association and North American Society of Pacing and Electrophysiology (NASPE)
Disclosure: Nothing to disclose.

 
 
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