The spectrum of aphasia subtypes

The spectrum of aphasia subtypes and etiology in subacute stroke.
J Stroke Cerebrovasc Dis. 2013 Nov;22(8):1385-92.
Hoffmann M, Chen R.
http://www.ncbi.nlm.nih.gov/pubmed/23680689

BACKGROUND:
Aphasia is one of the most common stroke syndrome presentations, yet little is known about the spectrum of different subtypes or their stroke mechanisms.

METHODS:
the first month of stroke presentation, which enabled a diagnosis of 14 different aphasic subtypes.
The evolution from one subtype to another in the acute and subacute period, at times, resulted in more than 1 subtype being diagnosed.

RESULTS:
the subtype frequencies included Broca aphasia (n = 170), anomic aphasia (n = 165), global aphasia (n = 119), and subcortical aphasia (n = 57).
Less frequent subtypes (total n = 40) included transcortical aphasia (n = 11), Wernicke aphasia (n = 10), conduction aphasia (n = 7), aphemia (n = 3), semantic aphasia (n = 3), crossed aphasia (n = 3), pure word deafness (n = 2), and foreign accent syndrome (n = 1).

CONCLUSIONS:
(1) Aphasias are a heterogeneous entity in subtype and etiology;
(2) Broca, global, anomic, and subcortical aphasias accounted for the vast majority of aphasia subtypes;

KEYWORDS:
Aphasia subtypes, stroke

related:

UOK? ‘Dystextia’ Alerts Doctors To Neurological Problems
December 24, 2012
http://www.npr.org/sections/health-shots/2012/12/23/167931641/uok-dystextia-alerts-doctors-to-neurological-problems

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