title: Long-term outcome of angioplasty or stent placement for stenosis of the cavernous or petrous portion of the internal carotid artery.
abstract: Percutaneous transluminal angioplasty (PTA) and stent placement are effective in patients with stenosis of the cavernous or petrous portion of the internal carotid artery (ICA), but the long-term outcomes remain unclear. The present study evaluated long-term outcomes in 54 patients treated by PTA or stent placement for stenotic lesions involving more than 50% of the cavernous or petrous portion of the ICA with ischemic symptoms or without ischemic symptoms if cerebral blood flow on single photon emission computed tomography images was decreased by 20% compared with the contralateral side. Follow-up magnetic resonance, three-dimensional computed tomography, and conventional angiography were performed. Patient condition in the follow-up period was investigated using telephone interviews or questionnaires. PTA was used to treat 13 lesions and stent placement for 41 lesions. Permanent and transient complications occurred in 2 and 5 patients, respectively. The morbidity rate was 13% (7 of 54 patients). The follow-up period ranged from 3 to 80 months (mean 29.9 months), and restenosis and occlusion were recognized in 4 patients (7.4%). Five patients died (2 of malignancy and 3 of myocardial infarction) during the follow-up period. PTA and stent placement are safe and effective in patients with stenosis of the cavernous or petrous portion of the ICA, and result in low long-term rates of restenosis.
authors.affiliation: Department of Neurosurgery, Chubu Tokushukai Hospital, Okinawa, Japan.
authors.forename: Koichi
authors.initials: K
authors.lastname: Ito
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kai
authors.forename: Akio
authors.initials: A
authors.lastname: Hyodo
authors.forename: Shogo
authors.initials: S
authors.lastname: Ishiuchi
mesh_terms: D000368:Aged; D017130:Angioplasty / Q000009:adverse effects* / Q000401:mortality*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects* / Q000401:mortality*; D002545:Brain Ischemia / Q000401:mortality / Q000517:prevention & control / Q000628:therapy; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000628:therapy*; D002426:Cavernous Sinus / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010579:Petrous Bone / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D015607:Stents / Q000009:adverse effects*; D013995:Time; D016896:Treatment Outcome