A comparative study of safety and efficiency between LVIS stent assistant spring ring and Solitaire stent spring ring for the ruptured wide-necked intracranial aneurysm

Objective To compare the safety and efficiency of Lvis stent assistant spring ring and Solitaire assistant spring ring in the treatment of the ruptured wide-necked intracranial aneurysm. Methods The clinical data of 88 patients with the ruptured wide-necked intracranial aneurysm undergoing Lvis stent assistant spring ring or Solitaire assistant spring ring in our hospital between June, 2014 and August, 2017 were analyzed retrospectively. Forty-five patients in the observation group received Lvis stent assistant spring ring, while 43 patients in the control group received Solitaire stent assistant spring ring. All the patients in the two groups were followed up to investigate the safety of the two methods by Glasgow Outcome Score (GOS). The result of computed tomography angiogram (CTA) and the Raymond-Roy Occlusion Classification (RROC) were used to compare the efficiency of two methods. Results The postoperative GOS in the observation group was higher than that in the control group (P<0.05); CTA result showed that the success rate in the observe group was higher than that in the control group (P<0.05), while the recurrence rate was lower than that in the control group (P<0.05); RROC immediate after the operation and during the follow-up in the observation group were better than those in the control group, the difference was statistically significant (P<0.05). Conclusion Livs stent assistant spring ring for intracranial wide-necked aneurysm can increase dense embolism rate, and decrease recurrence rate of arterial aneurysm and re-bleeding rate, with a better safety and efficiency level as compared with Solitaire stent spring ring.