title: How I do it: treatment of blood blister-like aneurysms of the supraclinoid internal carotid artery by extracranial-to-intracranial bypass and trapping.
abstract: BACKGROUND
  Blood blister-like aneurysms (BBAs) pose a significant challenge to neurosurgeons and neuro-interventionalists. These fragile broad-based aneurysms have a propensity to rupture with minimal manipulation during surgical or endovascular explorations because, unlike saccular aneurysms, they lack all layers of the arterial wall. Aneurysm trapping with extracranial-intracranial (EC-IC) bypass is a safe and durable treatment for BBAs.
  
  
  METHODS
  We describe our technique and the guiding principles for surgical bypass and trapping of BBAs of the supraclinoid internal carotid artery (ICA).
  
  
  CONCLUSIONS
  Treatment of BBAs of the supraclinoid ICA remains difficult. Aneurysm trapping with EC-IC bypass treats BBAs definitively by eliminating the diseased segment of the ICA. We have found the technique and principles described here to be safe and durable in our hands.
authors.affiliation: Department of Neurosurgery, University of Wisconsin-Madison, School of Medicine, CSC, K4/822, 600 Highland Avenue, Madison, WI, 53792, USA.
authors.forename: Ulaş
authors.initials: U
authors.lastname: Cıkla
authors.forename: Christopher
authors.initials: C
authors.lastname: Baggott
authors.forename: Mustafa K
authors.initials: MK
authors.lastname: Başkaya
mesh_terms: D002342:Carotid Artery, External / Q000601:surgery*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000601:surgery*; D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000379:methods*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000379:methods