title: Enhanced catheter propagation with hypercapnia during superselective cerebral catherisation.
abstract: During arterial catherisation of a cerebral arteriovenous malformation it may be difficult or impossible to access the nidus of the malformation through its small, tortuous feeding vessels due to microcatheter impaction. Carbon dioxide, a most potent cerebral vasodilator, was temporarily added to the inspired gases of two anaesthetised patients undergoing superselective embolisation of an arteriovenous malformation, when the microcatheter had been impacted for a considerable time. Successful propagation of the microcatheter into the malformation was achieved in both patients after a relatively short period of hypercapnia.
authors.affiliation: Department of Anaesthesia, Armed Forces Hospital, Riyadh, Saudi Arabia.
authors.forename: H G
authors.initials: HG
authors.lastname: Djurberg
authors.forename: G T
authors.initials: GT
authors.lastname: Tjan
authors.forename: K R
authors.initials: KR
authors.lastname: Al Moutaery
mesh_terms: D000328:Adult; D000771:Anesthesia, Intravenous; D002245:Carbon Dioxide / Q000008:administration & dosage* / Q000627:therapeutic use; D002648:Child; D004621:Embolization, Therapeutic / Q000379:methods; D005260:Female; D006801:Humans; D006935:Hypercapnia / Q000209:etiology; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000628:therapy*; D015641:Radiography, Interventional; D014664:Vasodilation
chemical_list: D002245:Carbon Dioxide