Global aphasia
WikiDoc Resources for Global aphasia |
Articles |
---|
Most recent articles on Global aphasia Most cited articles on Global aphasia |
Media |
Powerpoint slides on Global aphasia |
Evidence Based Medicine |
Clinical Trials |
Ongoing Trials on Global aphasia at Clinical Trials.gov Trial results on Global aphasia Clinical Trials on Global aphasia at Google
|
Guidelines / Policies / Govt |
US National Guidelines Clearinghouse on Global aphasia NICE Guidance on Global aphasia
|
Books |
News |
Commentary |
Definitions |
Patient Resources / Community |
Patient resources on Global aphasia Discussion groups on Global aphasia Patient Handouts on Global aphasia Directions to Hospitals Treating Global aphasia Risk calculators and risk factors for Global aphasia
|
Healthcare Provider Resources |
Causes & Risk Factors for Global aphasia |
Continuing Medical Education (CME) |
International |
|
Business |
Experimental / Informatics |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The symptoms of global aphasia are those of severe Broca's aphasia and Wernicke's aphasia combined. There is an almost total reduction of all aspects of spoken and written language, in expression as well as comprehension. Improvement may occur in one or both areas (expressive and receptive) over time with rehabilitation. What is interesting to point out is that in patients of global aphasia other cognitive skills remain functioning - a phenomenon affirming that language faculty is indeed a separate domain.
Global aphasia is a type of aphasia that is usually associated with a large lesion in the presylvian area. It involves a "left side blowout" which includes Broca's area, Wernicke's area and the Arcuate fasciculus.
When injury initially occurs to all of these areas, the progression starts out with Global aphasia in the first 1-2 days due brain swelling (Edema). From there it evolves into Brocas or Wernicke's aphasia for 1-3 months (usually Broca's), then it resolves into a presidual anomic aphasia. Studies show that spontaneous improvement, if it happens, occurs within six months, but complete recovery is rare.
Persons with global aphasia are usually mute or use repetitive vocalization. The person frequently uses simple words such as expletives. They are marked by a severe impairment of both understanding and expression of language. Although, they can maintain communication through gestures.
Pathophysiology
Causes
Demographics
Risk Factors
Diagnosis
A battery of tests are used to diagnose Global aphasia which includes:
MRI imaging.
CT scan imaging.
Language Assessment Tests
Prognosis
Treatment
Multiple treatment modalities exist for Global Aphasia which includes:
- Repetitive Transcranial Magnetic Simulation(rTMS)
- Speech and Language Therapy(SLT)
SLT ensures significant restoration of speech, communication, and writing skills in post-stroke patients, with Global Aphasia.