Recurrent stenosis of common carotid—intracranial internal carotid interposition saphenous vein bypass graft caused by intimal hyperplasia and treated with endovascular stent placement

1999 ◽  
Vol 90 (3) ◽  
pp. 571-574 ◽  
Author(s):  
Jeffrey W. Brennan ◽  
Michael K. Morgan ◽  
William Sorby ◽  
Verity Grinnell

✓ Intimal hyperplasia is a well-known cause of delayed stenosis in vein bypass grafts in all types of vascular surgery. Options for treatment of stenosis in peripheral and coronary artery bypass grafts include revision surgery and the application of endovascular techniques such as balloon angioplasty and stent placement. The authors present a case of stenosis caused by intimal hyperplasia in a high-flow common carotid artery—intracranial internal carotid artery (IICA) saphenous vein interposition bypass graft that had been constructed to treat a traumatic pseudoaneurysm of the intracavernous ICA. The stenosis recurred after revision surgery and was successfully treated by endovascular stent placement in the vein graft. The literature on stent placement for vein graft stenoses is reviewed, and the authors add a report of its application to external carotid—internal carotid bypass grafts. Further study is required to define the role of endovascular techniques in the management of stenotic cerebrovascular disease.

2001 ◽  
Vol 2 (1) ◽  
pp. 52 ◽  
Author(s):  
Deok Hee Lee ◽  
Seung Ho Hur ◽  
Hyeon Gak Kim ◽  
Seung Mun Jung ◽  
Dae Sik Ryu ◽  
...  

2016 ◽  
Vol 02 (02) ◽  
pp. e15-e18 ◽  
Author(s):  
Andrea Giorgianni ◽  
Carlo Pellegrino ◽  
Camilla Micieli ◽  
Anna Mercuri ◽  
Renzo Minotto ◽  
...  

The aim of this study is to explore the possibility of endovascular treatment of internal carotid artery pseudoaneurysm (PSA). These lesions are difficult to treat with a surgical approach, especially if they are located extracranially and close to the skull base. Endovascular stent placement in symptomatic and unstable extracranial internal carotid PSA was found to be safe and effective. Depending on hemodynamic aspects, complete local exclusion of aneurysmal formation is achieved in few months. We present three patients with carotid dissection and PSA formation that have been successfully treated by stent placement.


2021 ◽  
Vol 7 ◽  
Author(s):  
Sheng-Jiang Chen ◽  
Rui-Rui Liu ◽  
Yi-Ran Shang ◽  
Yu-Juan Xie ◽  
Xiao-Han Guo ◽  
...  

Purpose: The present study aimed to explore the predictive ability of an ultrasound linear regression equation in patients undergoing endovascular stent placement (ESP) to treat carotid artery stenosis-induced ischemic stroke.Methods: Pearson's correlation coefficient of actual improvement rate (IR) and 10 preoperative ultrasound indices in the carotid arteries of 64 patients who underwent ESP were retrospectively analyzed. A predictive ultrasound model for the fitted IR after ESP was established.Results: Of the 10 preoperative ultrasound indices, peak systolic velocity (PSV) at stenosis was strongly correlated with postoperative actual IR (r = 0.622; P < 0.01). The unstable plaque index (UPI; r = 0.447), peak eccentricity ratio (r = 0.431), and plaque stiffness index (β; r = 0.512) moderately correlated with actual IR (P < 0.01). Furthermore, the resistance index (r = 0.325) and the dilation coefficient (r = 0.311) weakly correlated with actual IR (P < 0.05). There was no significant correlation between actual IR and the number of unstable plaques, area narrowing, pulsatility index, and compliance coefficient. In combination, morphological, hemodynamic, and physiological ultrasound indices can predict 62.39% of neurological deficits after ESP: fitted IR = 0.9816 – 0.1293β + 0.0504UPI – 0.1137PSV.Conclusion: Certain carotid ultrasound indices correlate with ESP outcomes. The multi-index predictive model can be used to evaluate the effects of ESP before surgery.


2000 ◽  
Vol 6 (1_suppl) ◽  
pp. 149-154
Author(s):  
J. Deguchi ◽  
T. Kuroiwa ◽  
S. Nagasawa ◽  
G. Satoh ◽  
T. Ohta

There have been few reports of stenting in the intracranial arteries. We used coronary stents in the chronically occluded intracranial vertebral artery and stenosis of internal carotid artery by the external force, and good blood flow were resumed. Stenosis in the intracranial arteries is also a good indication for stent placement when it is due to chronic total occlusion or artery compression by external force. But stent placement in the intracranial arteries has some problems. Stent placement in the intracranial artery is indicated only when the site of stent placement has a diameter of 3 mm or more, is a relatively linear portion of the vertebrobasilar artery or the internal carotid artery proximal to the C3 segment, and does not branch off perforating arteries or is already completely occluded.


Neurosurgery ◽  
2006 ◽  
Vol 58 (2) ◽  
pp. E386 ◽  
Author(s):  
Louis J. Kim ◽  
Felipe C. Albuquerque ◽  
Cameron G. McDougall ◽  
Robert F. Spetzler

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