Difference between revisions of "LPD (lateralized periodic discharges)"
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(Created page with "Synonyme: PLED (Periodic lateralized epileptiform discharges) *'''L'''ateralized: so unilateral *'''P'''eriodic: Relative constant interval between the discharges, which vari...") |
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Synonyme: PLED (Periodic lateralized epileptiform discharges) | Synonyme: PLED (Periodic lateralized epileptiform discharges) | ||
| − | *'''L'''ateralized: | + | *'''L'''ateralized: Unilateral |
*'''P'''eriodic: Relative constant interval between the discharges, which varies between 0.5 and 3 seconds (most often around 1 second) | *'''P'''eriodic: Relative constant interval between the discharges, which varies between 0.5 and 3 seconds (most often around 1 second) | ||
| − | *'''D'''ischarge: Could be | + | *'''D'''ischarge: Could be [[Delta waves]] or sharp waves with a “epileptiform” morphology |
| − | + | * If a more ictal appearance it can be categorized as LPD+:<ref>ACNS STANDARDIZED ICU EEG NOMENCLATURE v. 2012</ref> | |
| + | **'''+F''': superimposed fast activity. | ||
| + | **'''+R''': superimposed rhythmic or quasi-rhythmic activity. | ||
| + | **'''+FR''': superimposed fast activity and rhythmic or quasi-rhythmic activity. | ||
*LPD’s are seen in acute cerebral laesion | *LPD’s are seen in acute cerebral laesion | ||
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***Other structural lesions | ***Other structural lesions | ||
* Tend to disappear in weeks | * Tend to disappear in weeks | ||
| − | * Higher risk of seizures in patients with LPD’s | + | * Higher risk of seizures (50-80%) in patients with LPD’s <ref>Garcia-Morales et al, Periodic lateralized epileptiform discharges: etiology, clinical aspects, seizures, and evolution in 130 patients.J Clin Neurophysiol. 2002 Apr;19(2):172-7. </ref> |
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[[File:LPD%27s_left_parieto_occipital_male_78_yo_with_a_hemmorrhage_left_occipital_(average).png|border|1200px]] | [[File:LPD%27s_left_parieto_occipital_male_78_yo_with_a_hemmorrhage_left_occipital_(average).png|border|1200px]] | ||
---- | ---- | ||
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| + | '''Notes''' | ||
| + | <references/> | ||
Latest revision as of 10:37, 19 May 2017
Synonyme: PLED (Periodic lateralized epileptiform discharges)
- Lateralized: Unilateral
- Periodic: Relative constant interval between the discharges, which varies between 0.5 and 3 seconds (most often around 1 second)
- Discharge: Could be Delta waves or sharp waves with a “epileptiform” morphology
- If a more ictal appearance it can be categorized as LPD+:[1]
- +F: superimposed fast activity.
- +R: superimposed rhythmic or quasi-rhythmic activity.
- +FR: superimposed fast activity and rhythmic or quasi-rhythmic activity.
- LPD’s are seen in acute cerebral laesion
- Non specific:
- Acute cerebrovascular events
- Encephalitis
- Subdural hematoma
- Other structural lesions
- Non specific:
- Tend to disappear in weeks
- Higher risk of seizures (50-80%) in patients with LPD’s [2]
LPD's left parieto occipital in a male of 78 years old with a hemmorrhage left occipital (average)
.png)
Notes
