Hemodynamic differences determining rupture and non-rupture in middle cerebral aneurysms after growth.

Background And Purpose: Intracranial aneurysm growth is a significant risk factor for rupture; however, a few aneurysms remain unruptured for long periods, even after growth. Here, we identified hemodynamic features associated with aneurysmal rupture after growth.

Materials And Methods: We analyzed nine middle cerebral artery aneurysms that grew during the follow-up period using computational fluid dynamics analysis.

One-Stage Combined Open and Endovascular Treatment Using a Hybrid Operating Room is Safe and Effective for Distal Middle Cerebral Artery Aneurysms.

Background: Aneurysms located in the distal middle cerebral artery (DMCA) are relatively rare and lack an established treatment strategy. For DMCA aneurysms, we performed a one-stage combined procedure of endovascular parent artery occlusion (PAO) with coils and superficial temporal artery to middle cerebral artery (STA-MCA) bypass in a hybrid operating room (HOR). The aim of this study was to evaluate the safety and efficacy of this procedure.

A Case of Delayed Intraparenchymal Hemorrhage Due to Hyperperfusion After Flow Diverter Treatment.

Delayed intraparenchymal hemorrhage (DIPH) is one of the complications of flow diverter (FD) treatment, however, the mechanism is unclear. We present the case of a 54-year-old woman with a partially thrombosed large internal carotid artery aneurysm. She presented intraparenchymal hemorrhage in the right parietal lobe three days after the successful FD treatment.

Open Retrograde Stenting with a Sheathless Method Using a Balloon-guiding Catheter for Proximal Common Carotid Artery Stenosis.

Objective: Carotid artery stenting (CAS) and carotid endarterectomy are relatively difficult for proximal common carotid artery (CCA) stenosis because of the difficulty in anatomical approach. We treated proximal CCA stenosis by retrograde stenting using a 9Fr Optimo for peripheral intervention with a sheathless method.

Case Presentation: A 60-year-old woman was scheduled for total arch replacement (TAR) for an aortic arch aneurysm.