{'fraction_non_alphanumeric': 0.020506634499396863, 'fraction_numerical': 0.018094089264173704, 'mean_word_length': 5.102941176470588, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[EEG recorded during the 1st 48 hours after a cerebral vascular accident as a result of carotid stenosis].

This article describes the principal EEG abnormalities noted during the first 48 hours of cerebro-vascular ischemic accidents due to carotid artery obstruction. No instances of slow delta waves were seen in the 60 cases of transient ischemic accident. In the 162 cases of cerebro-vascular accidents, all EEG abnormalities were correlated with the level of consciousness and thus add little to the clinical data with respect to the prediction of short-term mortality. However, in the 135 patients who presented a cerebro-vascular accident with no alterations of consciousness, the appearance of polymorphic delta waves or spikes (focalized or diffuse) within the first 48 h does significantly predict short-term mortality.