Intraoperative Arachnoid Plasty Has Possibility to Prevent XXXX after Surgery for Unruptured Cerebral Aneurysms.

@entity1 @entity439 @entity16841 @entity6087
Some @entity1 develop @entity6087 ( @entity6087 ) after the clipping/coating of unruptured @entity439 . The risk factors are not well understood and while no preventive methods are currently available, arachnoid plasty (ARP) may intercept the development of postoperative @entity16841 . We investigated the risk factors for @entity16841 and the usefulness of ARP to prevent postoperative @entity16841 . Between January 2009 and June 2013, 393 @entity1 underwent 416 @entity439 surgeries via the pterional approach at Kushiro Kojinkai Memorial Hospital. Of these, 394 @entity439 (371 @entity1 ) were included in this study. Using multivariate analysis we evaluated the relationship between the @entity1 demographics and clinical characteristics, and the development of postoperative symptomatic @entity16841 . We also studied the effect of ARP performed during @entity439 surgery. We found that symptomatic @entity16841 developed after 20 (5.1%) of the 394 operations; it was addressed by burr hole surgery and evacuation/irrigation. Male gender, advanced age, and oral anticoagulant therapy were significant risk factors for @entity16841 . Additive ARP, performed in the course of 132 surgeries (33.5%) was found to be a significant negative risk factor. The incidence of @entity16841 was significantly lower in @entity1 who had undergone ARP than in @entity1 who had not undergone it (0.8% vs. 7.3%, p < 0.01). We first report that ARP is useful for the prevention of @entity16841 in @entity1 treated by @entity439 surgery.
