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Abstract of the occlusion of patients with carotid artery near occlusion is unknown. In CANO patients receiving carotid artery stenting, we wanted to determine the peri-procedural risk. Patients with carotid artery stenosis were among 199 patients with CANO and 106 age and sex-matched patients with 70 percent conventional carotid stenosis, with 72 patients with sand-matched carotid stenosis. The CANO patients had significantly longer lesion lengths compared to those in the non-CANO group.
Source link: https://doi.org/10.1038/s41598-021-01286-3
Aneurysm in a 29-year-old woman is diagnosed with a large right ophthalmic artery aneurysm. paraphrased balloon occlusion, and it was decided to carry out the surgery with simultaneous endovascular temporary carotid balloon occlusion. The balloon was delivered in the petrous carotid, and the distal durai ring was opened showing the proximal neck. The aneurysm was completely dissected and clipped under temporary proximal carotid balloon occlusion and distal carotid clip occlusion.
Source link: https://doi.org/10.3171/2015.7.focusvid.14570
The authors discuss the use of an endovascular plug in securing a carotid artery pseudoaneurysm in an emergent setting that requires craniotomy for a simultaneous subcutaneous empyema. They detail the case of a 14-year-old boy with sinusitis and bifrontal subdural empyema who underwent transsphenoidal investigation at an outside hospital. Bleeding was successfully managed by inflating a Foley balloon catheter within the sphenoid sinus, and the patient was taken to the authors' u2019 institution. A dissection of the right cavernous carotid artery was discovered by emerging angiography, with a large pseudoaneurysm protruding into the sphenoid sinus at the site of arterial injury. The right internal carotid artery was obliterated with pushable coils distally and an endovascular plug proximally. Both frontal sinuses were removed from the patient's chest following an emergent bifrontal craniotomy for evacuation of a left frontotemporal subdural empyema and exenteration of both frontal sinuses.
Source link: https://doi.org/10.3171/2017.3.peds16370
The authors discuss unusual case of acute middle cerebral artery occlusion triggered by spontaneous thrombus of a small internal carotid artery aneurysm. Early Computed Tomography Scores, 2011--DWIu2013Alberta Stroke Program Early Computed Tomography Scores were 6. The authors treated acute phase MCO with mechanical thrombectomy, after which secondary stroke prophylaxis consisting of warfarin potassium was initiated. Since the thrombus had disappeared from the left ICA aneurysm, the whole aneurysm was clarified by MRA, coil embolization was carried out, the entire aneurysm was clarified. If the proximal aneurysm is a potential embolic source, medical intervention may have a stroke-free.
Source link: https://doi.org/10.3171/case22335
BACKGROUND The bonnet bypass was initially planned for common carotid artery occlusion. However, the typical first-generation low-flow superficial temporal artery bypass can be improved by a side-to-side bypass of an intraluminal suture technique to raise perfusion through antegrade and retrograde flow. OBSERVATIONS In the case of a patient with symptomatic common carotid occlusion, the STA-M4 bypass was reimagined by the authors in a situation in which the ipsilateral STA filled in a new manner from the contralateral external carotid branches over the scalp vertex in a randomized manner.
Source link: https://doi.org/10.3171/case2177
BACKGROUND Large pituitary adenomas can rarely result in compression of the cavernous internal carotid artery as a result of persistent tumor growth or invasion. Here, the authors discuss a case of pituitary apoplexy causing acute bilateral ICA occlusion with resultant stroke. A significant perfusion delay in the anterior circulation was shown by CT perfusion. paraphrased compression restrictions, OBSERVATIONS Pituitary apoplexy can be present as an acute stroke due to flow-limiting carotid compression. LESSONS Pituitary apoplexy can be a rare occurrence of acute stroke and should be treated immediately rather than attempted angioplasty in order to restore blood flow and prevent cerebral ischemia.
Source link: https://doi.org/10.3171/case21370
Therapeutic ICA occlusion has not well understood because vessel sizes and the establishment of collateral circulation in each patient are not similar, and the appropriate graft size to avoid low flow-u2013-related ischemic complications in external carotid artery bypass with therapeutic ICA occlusion have yet to be determined. The authors of this article hypothesized that the correct graft size could be calculated from the size of the sacrificed ICA and MCA pressure, as well as an investigation into patients with complicated ICA aneurysms treated with ECA-graft-MCA bypass and therapeutic ICAO. paraphrasedoutput:METHODS IN the period between July 2006 and January 2016, 80 patients with complicated ICA aneurysms were treated with ECA-MCA bypass and therapeutic ICAO. The mean stump pressure/mean preocclusion pressure was calculated after surgical balloon test occlusion was performed, and the BTO pressure ratio was established as the mean stump pressure/mean preocclusion pressure. Low flowu2013related ischemic disorders were characterized as new postoperative physical signs and ipsilateral cerebral blood flow reductions. Results The mean BTO pressure ratio was highly correlated with the mean cMCAP/iMCAP. The mean BTO-expected MCAP ratio was highly correlated with the predicted MCAP ratio if the estimated MCAP ratio was determined using the BTO pressure ratio rather than cMCAP/iMCAP. CONCLUSIONS The present study found that it was vital to use an excellent graft to produce a high MCAP ratio in order to prevent LRICs and that a suitable graft size could be determined based on a formula in patients with diffusion aneurysms treated with ICAO.
Source link: https://doi.org/10.3171/2016.11.jns161986
OBJECTIVE The vascular lumen of an acutely occluded internal carotid artery is often accompanied by multiple thrombi. Hence, carotid angiography on the affected side of acute ICA occlusion's revascularization therapy could result in distal embolization. MMETHODS Six patients with acute ICA occlusion underwent revascularization therapy using a stent retriever or Penumbra system, according to the author. In the contralateral ICA, a 9-Fr balloon-guiding catheter was used in the affected ICA and a 4-Fr diagnostic catheter. RESULTS The time was taken for inserting the 4-Fr diagnostic catheter into the contralateral ICA was within a few minutes in both patients. In 3 of 6 patients, there were thrombies in the affected ICA. CONCLUSIONS CONTROL angiography of acute ICA occlusion is a useful tool in preventing distal embolization during revascularization therapy.
Source link: https://doi.org/10.3171/2017.3.jns162563
Tandem internal carotid artery origins occlusion and middle cerebral artery thromboembolism is a life-threatening illness with poor neurological function. This case illustrates the shortest reported time between tPA infusion and open surgical intervention for carotid revascularization, as well as the role of direct carotid artery access for mechanical thrombectomy. The authors also discuss the use of a temporizing femoral artery in the context of ICA occlusion.
Source link: https://doi.org/10.3171/2017.6.jns162368
Hirsch category 2 and 3 tumors were found in 97 GHPAs, with 97 GHPAs being Knosp grade 2/3 tumors. No GHPA or category 1 CSM underwent ICA stenosis or occlusion. Asymptomatic ICA stenosis or occlusion was present in three patients with category 2 CSMs, including 1 in category 2 CSMs, and one category 2 CSM sufferer had transient ischemic signs. The risks of ICA stenosis/occlusion in category 2 and 3 CSM patients were 7. 5% and 12. 4%, respectively, on five- and 10-years. Both category 2 and three CSM patients were both 1. 2% in five- and 10-year risks of ischemic stroke from ICA stenosis/occlusion. CONCLUSIONS After SRS for CSM, a stenosis/occlusion was common after SRS for CSM, but not for GHPA, indicating a tumor-specific mechanism unrelated to radiation exposure. However, the risk of ICA stenosis/occlusion is very low, as a result of ischemic complications.
Source link: https://doi.org/10.3171/2019.8.jns191285
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