Background and Purpose-Limited data are available concerning the outcome of angioplasty/stenting for subacute atherosclerotic intracranial artery occlusion, which is often associated with progressive symptom development in the salvageable brain under ischemic threat due to poor collateral blood supply. Methods-Among 177 patients who underwent angioplasty and/or stenting for severe symptomatic intracranial stenoocclusion, 26 had subacute atherosclerotic intracranial artery occlusion. Outcome after stenting (Nϭ22) was assessed according to procedural success (return of antegrade flow and residual stenosis Ͻ50%), adverse event (any stroke or death) rate, and restenosis (Ͼ50%) using weighted Cox proportional hazards regression in the overall cohort and in separate subgroups. Results-Successful recanalization was achieved in 95%. Three adverse events (13.6%) occurred among patients undergoing stenting for occlusion, including 2 major strokes and 1 nonprocedure-related death. Good outcome (modified Rankin Scale Յ2) was achieved in 73%. In the overall cohort, no significant difference was observed between the occlusion and stenosis groups in terms of the risk of adverse events (hazard ratio for the occlusion group, 1.055; 95% CI, 0.29 -3.90) or the risk of restenosis (hazard ratio for the occlusion group, 1.2; 95% CI, 0.19 -7.72). A trend toward a higher rate of adverse events was observed in older age (Ͼ65 years), progressive worsening, balloon-expandable stent, and no history of a preprocedural P2Y12 assay. Conclusions-In a cohort of patients undergoing angioplasty/stenting for subacute atherosclerotic intracranial artery occlusion, no significant difference in the rates of adverse events was observed. However, several factors, including age, tended to be associated with a higher event rate. (Stroke. 2011;42:3470-3476.)
Isolated SMA dissection may be managed successfully in a variety of ways based on the clinical symptoms. In this small series, percutaneous endovascular reconstruction with bare stent implantation is a feasible treatment choice with a high success rate and good clinical outcome.
The objective of this study was to investigate the effect of transcatheter arterial embolization (TAE) with N-butyl-2-cyanoacrylate (NBCA)-Lipiodol mixture in patients with bronchial artery aneurysm (BAA). From January 2005 to January 2010, five patients presenting hemoptysis with six BAAs were treated with NBCA-Lipiodol mixture, including intra-aneurysm embolization (IAE) in one patient. Adjuvant embolization with spherical polyvinyl alcohol (PVA) embolic microparticles or NBCA was first performed to embolize the distal engorged bronchiectatic arteries. Bronchial arterial angiography showed six BAAs (four in the right lobe and two in the left lobe) and some engorged, tortuous bronchial arteries. TAE through microcatheter was successful in all cases. Postembolization angiogram demonstrated the NBCA cast and total occlusion of BAAs and bronchiectatic engorged vessels. After these procedures, hemoptysis completely disappeared in all patients. Follow-up computed tomography (CT) scan was performed at an average of 3 months (range 2 to 6), which showed no enhancement of BAAs and accumulation of NBCA. TAE is a minimally invasive, effective, and reliable approach for treatment for patients with BAA. NBCA-Lipiodol mixture provides a good choice for treatment of BAA, especially when catheterization of the efferent branches is impossible.
Endovascular treatment of HAPs using stent graft can maintain the hepatic artery blood flow and could be considered as an alternative to embolization.
Stent-assisted neck remodeling for wide-necked aneurysms requires long-term medication with antiplatelet agents. We describe here a temporary semi-jailing technique (SJT) for wide-necked aneurysms that avoids the need for antiplatelet medications. Materials and Methods: Among 101 patients who underwent stent-and/or balloon-assisted embolizations, 3 wide-necked aneurysms, including 1 ruptured aneurysm, underwent the temporary SJT using Enterprise stents. Temporary SJTs were used due to resistance to antiplatelet agents prior to cardiac surgery or to a ruptured aneurysm with a wide neck. The aneurysms were located in the middle cerebral artery, the paraclinoid internal carotid artery segment, and the posterior communicating artery. Results: Enterprise stents were retrieved after coiling without any change in coil mass stability. The final angiogram showed good patency of each parent artery, good stability of the coil mass and total occlusion of the aneurysm. None of the patients experienced any periprocedural or delayed neurological complications. While retrieving the stent from tortuous vessels, we experienced the jumping phenomenon associated with this device. Conclusion: Temporary SJTs have the advantage of stent retrieval, thus avoiding inevitable antiplatelet medication. However, care should be taken in tortuous vessels to avoid the jumping phenomenon associated with the device.
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