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Journal of Neurology Neurosurgery and Psychiatry 2003;74:413
© 2003 BMJ Publishing Group

EDITORIAL COMMENTARY
Visible infarction

Visible infarction on CT after stroke—what does it tell?

R Kay, A C F Hui

Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong

Correspondence to:
Correspondence to:
Professor R Kay;
Lichikay@cuhk.edu.hk

The first 150 words of the full text of this article appear below.

There are many predictors of functional outcome after stroke, among which consciousness level on admission, concentration of blood glucose, and radiological extent of the infarct or haematoma spring into mind. Not all infarcts are visible on CT, especially in the first few hours. In the paper by Wardlaw et al on 452–458,1 among 12 550 patients who were enrolled in the International Stroke Study (1991–96) only 50% had visible infarction, even up to 48 hours after stroke.

Compared with patients without visible infarction, those who had were 25% more likely to have a poor outcome (defined as death or dependency) at six months. There was, however, neither an association between visible infarction and subsequent haemorrhagic transformation of the infarct (which occurred in less than 1% of all patients), nor any interaction between visible infarction and treatment allocation (aspirin or heparin) with the six month outcome.

As functional . . . [Full text of this article]


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