Intraoperative microvascular Doppler ultrasonography in urgent clipping surgery for application of ruptured aneurysms / 中国医师进修杂志

ABSTRACT

Objective To evaluate the efficacy and reliability of intraoperative microvascular Doppler uhrasonography (IMDU)in urgent clipping surgery of ruptured aneurysms,and assess the impact of this method on the surgical procedure itself.Methods For 62 patients who underwent urgent clipping surgery for the treatment of ruptured aneurysms,both blood flow velocities in the aneurismal sac and in the adjacent vessels and alterations of the Doppler spectrum were determined by IMDU before and after aneurysm clipping.The findings of IMDU were analysed and compared with those of visual inspection of the surgical site and postoperative angiography. Results A relevant stenosis of an adjacent vessel induced by efip position that had escaped detection by visual inspection was identified by IMDU in 12 out of 62 patients.In addition, IMDU demonstrated a primarily incomplete clipping aneurysm in 4 out of 62 patients.The clipping aneurysm was repositioned on the basis of the IMDU findings in 16 out of 62 patients.The findings from IMDU equated with those from angiography in 38 eases.Conclusion IMDU is a safe,instantaneous,effective and reliable technique for the urgent dipping surgery of raptured aneurysms.