Experimental study of the correlation between ICP and shift of cerebral midline in early stage of postdecompressive brain bulk enlargement

Objective：To explor the correlatin between ICP and shift of cerebral midline in early stage of postdecompressive brain bulk enlargement.Methods：Used physical monitor，ICP was measured continuely in 6 cats within 6h after decompression.T₁WI was performed in the same 6 cats at the three time points （2h，4h or 6h after decompression） to examine the shift of cerebral midline.Results： ICP raised shortly and obviously after decompression.The swollen hemisphere shifted increasingly to the contralater.Conclusion： There was medium positive correlation （coefficient=0.61） between ICP and the midline shift in early stage （＜6h） of post decompressive brain bulk enlargement.Both of ICP and the midline shift could show definitely the swollen degree of the hemisphere in decompressive side.