ABSTRACT
Objective To evaluate the role and effect of intraoperative microvascular Doppler ultrasonography(IMD)in the in-tracranial aneurysm clipping operation.Methods The blood flow velocities of aneurysmal sac,adjacent vessels and parental arteries were determined by IMD before and after clipping in 79 cases of intracranial aneurysm clippings;the influence of IMD on the effect of craniotomy for intracranial aneurysm clipping was comparatively analyzed.Results IMD demonstrated that the clip adj ustment was more likely to happen in the patients with anterior intracranial artery(ACA),anterior communication artery(ACoA)and middle intracranial artery(MCA)aneurysms,and the patients with complex,giant aneurysm due to the change of blood flow velocity in ad-jacent vessels and parental arteries caused by inadvertent occlusion or incomplete closure.In addition,the higher the preoperative Hunt-Hess classification,the easier the inadvertent occlusion or incomplete closur;the patients with conventional use of intraopera-tive IMD were significantly superior to those without intraoperative IMD in the aspects of the postoperative hospital stay,reopera-tion rate,postoperative GOS and complication occurence rate.Conclusion The routing use of IMD in the intracranial aneurysm clip-ping operation conduces to find the inadvertent occlusion or incomplete closure and the timely adj ust the aneurysm clip position;the IMD can assist operation can significantly improve the postoperative GOS score,short the hospital stay and reduce the reoperation rate and the probability of complication occurrence.