Applications of cristal balloon peripherique in large or giant intracranial aneurysms clipping surgery

Objective To discuss the application of cristal balloon peripherique(CBP)in clipping of large or giant intracranial aneurysms.Methods 5 large or giant intracranial aneurysms were clipped assisted with CBP.The diameter of the aneurysms is 20~35 mm.Before surgery,the CBP was inserted into internal carotid artery approaching the aneurysm.When the aneurysm was partly exposed,the balloon was engorged to obstruct bloodstream running into the aneurysm.Then,it was clipped when the aneurysm was withered by withdrawing the blood in the aneurysm with CBP.Results 5 aneurysms were clipped.All have good results except contralateral hemiplegia in one patient with middle cerebral artery aneurysm.Follow-up angiograms demonstrate complete obliteration of the aneurysm one year after clipping in one patient.Conclusions It can obstruct bloodstream running into the aneurysm and decrease intra-aneurysm pressure by reversed sucking that CBP were applied to clip large or giant intracranial aneurysms,and provide an utility method for large or giant intracranial aneurysms.