Ver el código de «Transient global amnesia»

==Background==
*Paroxysmal, transient anterograde amnesia lasting several hours <ref>D Owen et al. Classical diseases revisited: transient global amnesia. Postgrad Med J. 2007 Apr; 83(978): 236–239.</ref>
*Most common in female 40-60yo<ref>Lin KH, et al. Migraine is associated with a higher risk of transient global amnesia: a nationwide cohort study. Eur J Neurol. 2014; 21(5):718-24.</ref>

==Clinical Features==
*Anterograde amnesia
*Unaware of their memory loss
*Normal attention and social skills
*Struggle with delayed recall
*Periods of time typically less than 24 hrs, but typically lasts 4-6 hrs<ref>Zeman AZ, et al..Transient global amnesia. Br J Hosp Med. 1997; 58:257-60.</ref>
*No localizing symptoms
**If localizing symptoms, consider alternative diagnosis

===Diagnostic Criteria===
*Attack must be witnessed.
*Acute onset of anterograde amnesia 
*No alteration in consciousness.
*No cognitive impairment other than amnesia.
*No loss of personal identity.
*No focal neurology or epileptic features .
*No head trauma attributing amnesia to a [[concussion]]
*Must resolve within 24 hours
*No other causes of amnesia<ref>Hodges J R, Warlow C P. Syndromes of transient amnesia: towards a classification. A study of 153 cases. J Neurol Neurosurg Psychiatry 199053834–843. </ref>

==Differential Diagnosis==
*[[Hypoglycemia]]
*[[Hyponatremia]]
*[[Meningitis]]/[[encephalitis]]
*[[Seizure]]
*[[CVA]]
*[[Hyperosmotic Coma]]
*[[Drug toxicity]]
**Lithium, [[phenytoin]], carbamazepine
*Complicated [[migraine]]
*Demyelinating disease ([[MS]])
*Conversion disorder
*Alcohol blackout

==Workup==
'''Depending on presentation, consider CVA workup'''
#Bedside glucose
#Bedside hemoglobin (polycythemia)
#CBC
#Chemistry
#Coags
#Troponin
#ECG (esp A-fib)
#[[Head CT]]
#*Primarily used to exclude intracranial bleeding, abscess, tumor, other stroke mimics
#Also consider:
#*Pregnancy test
#*[[CXR]] (if infection suspected)
#*[[Urinalysis]] (if infection suspected)
#*[[Urine toxicology screen]] (if ingestion suspected)

==Management==
*Rule out CVA (clinically or with further workup)
*Neurology referral
*Once diagnosed, no specific treatment needed<ref>Owen D, et al. Classical diseases revisited: transient global amnesia. Postgrad Med J. 2007; 83(978):236–239.</ref>

==Disposition==
*Discharge home with neurology follow up
*Consider admission for equivocal cases

==Prognosis==
*Full recovery with amnesia of event
*Annual recurrence rate was 4.7%<ref>Hinge HH, et al. The prognosis of transient global amnesia. Results of a multicenter study. Arch Neurol. 1986; 43(7):673-6.</ref>

==See Also==
[[Stroke]]

==External Links==

==References==
<references/>

[[Category:Neurology]]