INRs above 5, however, are associated with an unacceptably high risk of hemorrhage. The patient was managed with intravenous heparin while his coumadin dose was adjusted to a higher level of anticoagulation. Over the next few days, he noted a gradual improvement in his ability to read. The visual field deficit disappeared within two days of presentation. His calculation difficulties were improving, but not yet at baseline, at discharge.
Global dyslexia refers to the inability to perform either task.
Of these, the most commonly encountered is verbal alexia, most commonly caused by the acute confusional state. One may also divide alexias based on location of lesion into posterior, central, and anterior alexias. Posterior alexia corresponds to alexia without agraphia , central alexia to alexia with agraphia , and anterior alexia to a reading dysfunction characterized by impaired ability to comprehend syntactic structures. Each will be discussed in more detail below. Readers may deduce the meaning of printed words by three mechanisms.