WikiDoc Resources for Lown-Ganong-Levine syndrome
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|1938||Clerc, Levy and Critesco in 1938 first reported cases in which there was occurence of frequent paroxysms of tachycardia. The EKG of such patients consist of a short PR interval and normal QRS interval|
|1946||Burch and Kimball hinted on existence of the atrio-Hisian pathway|
|1952||The Lown-Ganong-Levine (LGL) pattern was described in 1952 by Bernard Lown, William Francis Ganong and Samual Levine.|
|1961,1974||In 1961 and subsequently in 1974 anatomic pathway was identified and reported by James and Brechemacher respectively.|
- LGL syndrome can be classified based on the accessory pathways into following categories
|James Fibers||They can be present as normal part of AV node but these fibers have been established as anatomic reason for LGL syndrome|
|Brechmacher fibers||These atrio-Hisian tracts are reported to have a frequency of 0.03 % and can be theoratically a cause of LGL syndrome|
|Intra-nodal bypass tracts||Intra-nodal bypass tracts would allow the conduction of rapid action potential through AV node bypassing the other slow pathways.|
- The pathophysiology of LGL syndrome has not yet been completely understood.
- The three accessory pathway as discussed in classification have been proposed to be the main triggering factors for the development of LGL.
Differentiating [disease name] from other Diseases
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Epidemiology and Demographics
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Natural History, Complications and Prognosis
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- The diagnosis of [disease name] is made when at least [number] of the following [number] diagnostic criteria are met:
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- [criterion 2]
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- [Disease name] is usually asymptomatic.
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- [symptom 1]
- [symptom 2]
- [symptom 3]
- [symptom 4]
- [symptom 5]
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- [finding 3]
- [finding 4]
- [finding 5]
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Other Diagnostic Studies
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