Fig. 1

In general, there is a surprising lack of data on the effects of intraventricular and subarachnoid hemorrhage on choroid plexus (CP) injury, particularly in humans. In intraventricular hemorrhage, there are studies indicating acute CP damage but this may be absent in the long-term. This could reflect repair mechanisms (see Fig. 2 for cerebral ischemia) and there is a need for longitudinal studies in the same model. For subarachnoid hemorrhage, there is evidence for both acute and chronic CP injury