Causes
Apraxia is most often due to a lesion in the left hemisphere, and is typically in the parietal lobe and frontal lobe; however lesions in other brain areas, including the right hemisphere, due to stroke, ABI, or neurodegenerative diseases can result in apraxia.
Due to the common left parietal and frontal lobe locations, apraxia is often accompanied by aphasia which can make diagnosis challenging as it is difficult to tell if the patient's motor impairments are due to apraxia or from the decreased language comprehension associated with aphasia.
Ideational apraxia is commonly associated with confusion states and dementia.
Constructional apraxia is associated with hepatic encephalopathy due to cerebral edema.
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