PICA-involved dissecting aneurysmに対するOA-PICA anastomosisを用いた急性期直達手術(<特集>出血発症のPICA involved dissection aneurysm)  [in Japanese] Direct Surgical Treatment with OA-PICA Anastomosis for Ruptured PICA-involved Dissecting Aneurysm(Topics : Surgical Treatment for Ruptured PICA-involving VA Dissecting Aneurysm)  [in Japanese]

We propose a treatment for a ruptured dissecting aneurysm involving a posterior inferior cerebellar artery (PICA). The ruptured vertebral artery dissecting aneurysm is considered easy to re-bleed, so that, trapping or proximal occlusion of the aneurysm should be carried out in the acute period following subarachnoid hemorrhage. In a case with PICA originating from the aneurysm might result in cerebellar infarction. To avoid cerebellar ischemic complication, we perform occipital artery for PICA anastomosis at the time of trapping surgery.