Autoimmune Epilepsy Flashcards

1
Q

What antibody that causes adult onset,frequent brief dystonic seizures that predominantly affect the arm and ipsilateral face?

A

Antibody is to VGKC complexes, antigenic target is LGI1.

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2
Q

What type of seizures are associated with anti-LGI1 encephalitis?

A

Faciobrachial dystonic seizures (FBDS)

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3
Q

What is the usual clinical progression of anti-NMDAR encephalitis?

A

Progression of psychosis, memory deficits, seizures, and language disintegration to a state of unresponsiveness with catatonic features often associated abnormal movements and autonomic and breathing instabilities.

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4
Q

What age range predominates anti-NMDR encephalitis?

A

Children and young adults

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5
Q

Can anti-NMDR encephalitis occur without tumor?

A

Yes, with or without tumor

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6
Q

What tumor is associated with anti-NMDR encephalitis?

A

Ovarian teratoma

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7
Q

What type of abnormal movements are seen in anti-NMDR encephalitis?

A

Oro-lingual-facial dyskinesia

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8
Q

What type of seizures are seen in anti-NMDR encephalitis?

A

Motor and complex seizures, including status epilepticus.

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9
Q

What autoimmune dz gives rise to limbic encephalitis?

A

Anti-AMPA with antibodies to GluR1 and GluR2 subunits

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10
Q

What subunits are associated with anti-AMPA encephalitis?

A

GluR1 and GluR2

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11
Q

Anti-AMPA encephalitis is associated with limbic encephalitis and what other symptoms?

A

Acute psychosis and aphasia

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12
Q

What receptor antibody is associated with Rasmussen encephalitis?

A

Anti-GluR3

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13
Q

What clinical symptoms are associated with Rasmussen?

A

EPC, progressive hemiplegia, hemiatrophy

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14
Q

Anti-GABAB receptor antibodies with what clinical symptoms?

A

Limbic encephalitis, seizures, memory loss, and confusion.

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15
Q

Anti-GABAB is associated with what other clinical symptoms?

A

Ataxia, opsoclonus-myoclonus, with and without tremor

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16
Q

What type of tumor is associated with anti-GABAB receptor antibody encephalitis?

A

Small-cell lung carcinoma

17
Q

Is testing for the GluR3 useful for diagnosis of Rasmussen?

A

No due to low sensitivity and specificity.

18
Q

GABAB receptor antibodies can be seen in cancer patients without neurological signs?

A

No

19
Q

What is seen on EEG in patients with anti-NMDA receptor encephalitis?

A

Anterior rhythmic delta activity with superimposed low voltage beta

20
Q

What autoimmune epilepsies due to surface neuronal antibodies are responsive to immunotherapy?

A

LGI1 and NMDA receptor but not intercellular antigens like GAD65