What is Levine syndrome?
Lown–Ganong–Levine syndrome (LGL) is a pre-excitation syndrome of the heart. Those with LGL syndrome have episodes of abnormal heart racing with a short PR interval and normal QRS complexes seen on their electrocardiogram when in a normal sinus rhythm.
What is short PR syndrome on ECG?
A short PR interval is a term in cardiology that connotes a shortened time for the pacemaker in the atrium to conduct an impulse and activate the ventricle (the larger pumping chamber of the heart).
How is LGL syndrome treated?
Treatment / Management Medications utilized previously include digitalis, beta-blockers, calcium channel blockers (CCB), and either class I or III antiarrhythmics. Digitalis, beta-blockers, and CCB are thought to aid in controlling LGL by slowing AV nodal conduction and prolonging the refractory period.
What are symptoms of Lown-Ganong-Levine syndrome?
Patients with LGL report long histories of palpitations, which begin in early adulthood and become less frequent with age. Often the palpitations are accompanied by angina pectoris, dizziness, lightheadedness, and shortness of breath. In addition, short, self-terminating bursts of atrial fibrillation have been noted.
What happens if you have a short PR interval?
A short A-V conduction time, whether present with normal or with abnormal QRS complex, is associated with an increased incidence of paroxysmal rapid heart action. There are a considerable number of patients who have a short P-R interval, normal QRS complex and bouts of tachycardia.
What is the difference between WPW and LGL syndrome?
The main distinguishing feature between LGL and WPW syndromes is that the accessory pathway in LGL syndrome connects distally to the normal conduction pathway (bundle of His), and in WPW the accessory pathway connects to the ventricular myocardium.
Is short PR interval treatment?
It depends. Many people have short pr and lives normal life. Only those who suffer palpitations episode need treatment. In almost all case it’s never life threatening.
What conditions cause short PR interval?
A short PR interval has been described in patients with chronic lung disease (2), acute myocardial infarction (3), endocrine disorders (hyperthyroidism and Cushing’s disease) (4), and glycogen storage disease (Pompe’s disease) (5).
What is Lown Ganong-Levine syndrome?
Lown-Ganong-Levine Syndrome ECG Review. The Lown-Ganong-Levine (LGL) syndrome occurs when an accessory pathway is congenitally present that directly connects the atria to the ventricles, bypassing the AV node similar to the Wolff-Parkinson-White (WPW) syndrome.
What are the treatment options for Lown-Ganong-Levine syndrome (LGL)?
Because Lown-Ganong-Levine syndrome (LGL) is an outdated diagnosis, no specific therapy is indicated, although there should be a focus on preventing tachyarrhythmias via the acessory pathway. [ 1]
How is Lown-Ganong-Levine syndrome diagnosed?
ECG recorded from a 17-year-old man with Lown-Ganong-Levine syndrome LGL syndrome is diagnosed in a person who has experienced episodes of abnormal heart racing (arrhythmias) who has a PR interval less than or equal to 0.12 second (120 ms) with normal QRS complex configuration and duration on their resting ECG.
What is LGL syndrome of the heart?
Lown–Ganong–Levine syndrome ( LGL) is a pre-excitation syndrome of the heart. Those with LGL syndrome have episodes of abnormal heart racing with a short PR interval and normal QRS complexes seen on their electrocardiogram when in a normal sinus rhythm.