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Seizures after stroke.

To the Editor. —The study of epilepsy in stroke by Kilpatrick et al 1 probably represents the largest study to date of a topic that has been largely neglected. However, we found the quality of data obtained rather disappointing. For instance, surely the authors should have strived to obtain complete electroencephalographic documentation of these patients, both with and without seizures. Conclusions drawn from electroencephalograms in the seizure group only are incomplete without a comparison with the non-seizure group, and even in these, only 26 of 44 patients had had electroencephalograms. Similarly, in the 310 patients with cortical infarcts who were evaluated, 118 (38%) had "inadequate investigations." This is a surprisingly large number for a prospective study. Surely this huge unknown group invalidates any conclusions? Also, the authors seem to have lost 60 patients (the difference in totals between Tables 1 and 2). Four of the 44 patients within the seizure