Difference between revisions of "GPD (Generalized periodic discharges)"
From EEGpedia
(Created page with "* Any pattern of generalized synchronous, repetitive discharges of similar morphology * Relative symmetric * Periodic, so with interdischarge interval recurring at nearly reg...") |
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** A pattern can qualify as periodic as long as it continues for at least 6 cycles | ** A pattern can qualify as periodic as long as it continues for at least 6 cycles | ||
* Frontal- or occipital-dominant. | * Frontal- or occipital-dominant. | ||
| − | * If a more ictal appearance it can be categorized as GPD+: | + | * If a more ictal appearance it can be categorized as GPD+:<ref>ACNS STANDARDIZED ICU EEG NOMENCLATURE v. 2012</ref> |
**'''+F''': superimposed fast activity. | **'''+F''': superimposed fast activity. | ||
**'''+R''': superimposed rhythmic or quasi-rhythmic activity. | **'''+R''': superimposed rhythmic or quasi-rhythmic activity. | ||
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[[File:GPD_in_a_85_years_old_male_after_a_out_of_hospital_cardiac_arrest.png|border|1200px]] | [[File:GPD_in_a_85_years_old_male_after_a_out_of_hospital_cardiac_arrest.png|border|1200px]] | ||
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| + | '''Notes''' | ||
| + | <references/> | ||
Revision as of 15:17, 16 May 2017
- Any pattern of generalized synchronous, repetitive discharges of similar morphology
- Relative symmetric
- Periodic, so with interdischarge interval recurring at nearly regular intervals.
- A pattern can qualify as periodic as long as it continues for at least 6 cycles
- Frontal- or occipital-dominant.
- If a more ictal appearance it can be categorized as GPD+:[1]
- +F: superimposed fast activity.
- +R: superimposed rhythmic or quasi-rhythmic activity.
- +FR: superimposed fast activity and rhythmic or quasi-rhythmic activity.
- Not to be confused with intermittent rhythmic delta activity (IRDA)
- Not to be confused with lateralized of bilateral independent periodic discharges:
GPD’s in a 85 years old male after a out of hospital cardiac arrest (source), the discharges are symmetric, similar morphology with the same interdischarge intervals
Notes
- ↑ ACNS STANDARDIZED ICU EEG NOMENCLATURE v. 2012
