HEMORRHAGIC INFARCTION

The authors analyzed incidence of hemorrhagic infarction (HI) in 274 p atients with ischemic stroke in whom CT scan was performed twice, at t he beginning and three or more days after stroke, or was performed onl y once, ten or 14 days after stroke onset and was still bland. HI was found altogether in 55 (19.0%) patients. HI was statistically signific ant (x(2)=5,2), more often in patients with cerebral embolism (29,1%) than in patients with cerebral thrombosis (10.5%). HI occurred signifi cantly more often in patients with assumed embolic mechanism of stroke (0,01-0,05) than in patients with thrombotic stroke. Arterial hyperte nsion and cardial status were analyzed and evaluated in relation with appearance of HI, as well as in connection with anticoagulant therapy, but statistically significant influence of these factors upon develop ment of HI was found only for cardiac diseases. Size of infarcts was g reater in patients with HI (71.2%), while in patients with BI small in farcts were more often (59.8%). Patients with HI were older than patie nts with BI, but that difference was not statistically significant. Te mporal dispersion of HI occurence showed low incidence of HI in first two days, or after ten days of stroke onset. In majority of patients H I occurred between third and fifth days (74.4%) after stroke onset. An alyzing the outcome of patients, significant difference between patien ts with hemorrhagic or bland infarction was not found.