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Abstract

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Temporary clipping on parent artery is widely accepted as a useful method to prevent
intraoperative aneurysmal rupture. to dissect the aneurysm safely. and to obtain the
clear operation field during intraoperative aneurysm rupture however, the exact role and
adequate technique of the temporary clipping has yet to be determined. The authors
performed an experimental study to investigate the effect of temporary clipping on
intra-aneurysmal pressure. The experimental aneurysms, using side-to-side anastomosis
between common carotid artery and the jugular vein, were made in 24 rabbits. The
intra-aneurysmal pressure was monitored through a catheter inserted in the aneurysm.
The intra-aneurysmal pressure was significantly decreased to 31.8¡¾4.39§®Hg after
temporary clipping on the proximal common carotid artery(p<0.05). On the contrary,
intra-aneurysmal pressure was increased to 73.3¡¾4.39§®Hg after the distal parent
temporary clipping. In case of the temporary clipping on both proximal and distal parent
artery, the intra-aneurysmal pressure was markedly increased to 81.0¡¾11.7§®Hg(p=0.0035
on t-test). In conclusion, the temporary clipping on the parent artery should be
performed only on the proximal site of the aneurysm. Temporary clipping on both
proximal and distal site would be rather dangerous since it causes sharp increase in
intra-aneurysmal pressure during the clipping of aneurysm itself.

Å°¿öµå

Intra-aneurysmal pressure; Temporary clipping;

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