Hypoplastic internal carotid artery mimicking a classic angiographic “string sign”

1997 ◽  
Vol 86 (3) ◽  
pp. 567-570 ◽  
Author(s):  
Jason A. Heth ◽  
Christopher M. Loftus ◽  
John G. Piper ◽  
William Yuh
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Transient Ischemic Attacks ◽  
Associated Anomalies ◽  
Content Type ◽  
String Sign ◽  
Fine Print

✓ The authors report the case of a patient with transient ischemic attacks who was evaluated by duplex scanning, which demonstrated total carotid artery occlusion. Arteriography revealed what appeared to be a classic “string sign” in the cervical carotid artery, and a standard endarterectomy was planned. At surgery the internal carotid artery was found to be congenitally atretic, accounting for the string appearance of the arteriogram. The etiology, associated anomalies, differential diagnosis, and diagnostic evaluation of such lesions are discussed.

Stump embolization from an occluded internal carotid artery

1987 ◽  
Vol 67 (4) ◽  
pp. 609-611 ◽  
Author(s):  
Patrick G. Ryan ◽  
Arthur L. Day
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
External Carotid ◽  
Transient Ischemic Attacks ◽  
Content Type ◽  
Fine Print

✓ A patient with known internal carotid artery occlusion developed transient ischemic attacks in the distribution of the occluded vessel. Arteriography demonstrated a thrombus clearly originating from the internal carotid artery stump, which was unassociated with significantly stenotic atherosclerotic disease of the ipsilateral common or external carotid arteries. Stump angioplasty and endarterectomy led to complete and sustained cessation of further symptoms.

Aneurysm of the ICA petrous segment treated by balloon entrapment after EC-IC bypass

1986 ◽  
Vol 65 (2) ◽  
pp. 249-252 ◽  
Author(s):  
Kevin M. McGrail ◽  
Roberto C. Heros ◽  
Gerard Debrun ◽  
Brian D. Beyerl
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Superficial Temporal Artery ◽  
Cranial Nerves ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Preliminary Evaluation ◽  
Content Type ◽  
Fine Print

✓ A 44-year-old man experienced the sudden onset of horizontal diplopia and hemifacial numbness. Arteriography demonstrated a left intrapetrous carotid artery aneurysm. The patient was successfully treated with a left superficial temporal artery to middle cerebral artery bypass followed by balloon entrapment of the aneurysm. There have been at least 40 previously reported cases of aneurysms of the petrous portion of the carotid artery. These aneurysms can be mycotic, traumatic, or developmental in origin. They can present with massive otorrhagia or epistaxis from acute rupture or with decreased hearing and paresis of the fifth through eighth cranial nerves and, less frequently, of the ninth, 10th, and 12th cranial nerves caused by direct pressure. They can also produce pulsatile tinnitus, and sometimes they are discovered as a retrotympanic vascular mass during otological examination. The treatment of choice is carotid artery occlusion. Trapping of the aneurysm by detachable balloons eliminates immediately the risk of hemorrhage, offers the possibility of test occlusion of the internal carotid artery with the patient awake prior to permanent occlusion, and should also reduce the risk of thromboembolism. It should be preceded by a bypass procedure when preliminary evaluation indicates that the patient will not tolerate internal carotid artery occlusion.

Resolution of occlusion in spontaneously dissected carotid arteries

1982 ◽  
Vol 56 (6) ◽  
pp. 857-860 ◽  
Author(s):  
Eugenio Pozzati ◽  
Giulio Gaist ◽  
Massimo Poppi
Keyword(s):  
Carotid Arteries ◽  
Internal Carotid ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Spontaneous Resolution ◽  
Transient Ischemic Attacks ◽  
Content Type ◽  
Antiplatelet Aggregation ◽  
Spontaneous Dissection ◽  
Fine Print

✓ Two cases of internal carotid artery occlusion secondary to spontaneous dissection are reported. Both patients presented with transient ischemic attacks. Both had antiplatelet aggregation therapy, followed by spontaneous resolution of the occlusion. The period of healing seems to be relatively short. In both cases, restoration of flow was angiographically documented 14 days and 10 weeks after the initial arteriogram. Strategies for treatment of such patients are discussed.

Spontaneous reversal of internal carotid artery occlusion

1981 ◽  
Vol 54 (6) ◽  
pp. 811-813 ◽  
Author(s):  
Joseph F. Cusick ◽  
David Daniels
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Total Occlusion ◽  
Content Type ◽  
Spontaneous Reversal ◽  
Angiographic Evidence ◽  
Spontaneous Dissection

✓ Spontaneous dissection of the internal carotid arteries, including those dissections resulting in total occlusion, may be a spontaneously reversible process. A patient who had angiographic evidence of bilateral complete internal carotid artery occlusions of different ages of onset illustrates this process. This case suggests certain considerations regarding the pathogenesis of these dissections.

Pituitary apoplexy producing internal carotid artery occlusion

1977 ◽  
Vol 47 (4) ◽  
pp. 599-604 ◽  
Author(s):  
Thomas J. Rosenbaum ◽  
O. Wayne Houser ◽  
Edward R. Laws
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Pituitary Apoplexy ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Content Type ◽  
Presenting Symptoms ◽  
Major Vessel ◽  
The Right

✓ The authors report a case of pituitary apoplexy occurring several hours after carotid angiography. The event was associated with stupor, focal headache, and left hemiparesis. Repeat angiography demonstrated intracranial occlusion of the right internal carotid artery. At surgery, a hemorrhagic pituitary adenoma was found to be compressing the internal carotid artery, and the removal of the tumor resulted in restoration of flow. The mechanism, presenting symptoms and signs, and treatment of pituitary apoplexy causing compression of a major vessel are discussed.

Mechanical thrombectomy of right internal carotid artery terminus occlusion using the ADAPT technique: impact of aspiration on parent vessel

2020 ◽  
Vol 12 (11) ◽  
pp. 1148-1148 ◽  
Author(s):  
Rimal Hanif Dossani ◽  
Michael K Tso ◽  
Muhammad Waqas ◽  
Hamid H Rai ◽  
Gary B Rajah ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Stent Migration ◽  
Artery Occlusion ◽  
Carotid Artery Occlusion ◽  
Parent Vessel ◽  
Content Type ◽  
Video Player ◽  
The Impact

The impact of ADAPT—“a direct aspiration first pass technique”—on intracranial vasculature is not well understood, since the change of arterial diameter is often not visible during aspiration. We present a unique case in which the impact of aspiration on the parent vessel was visualized due to a previously deployed Neuroform Atlas stent and a Pipeline embolization device. The patient presented with right internal carotid artery occlusion. An aspiration catheter was advanced over the microcatheter system and corked into the clot, located within the stents in proximal M1. The stents were seen to collapse both during electronic pump and hand aspiration with no evidence of stent migration. This demonstrates that it is crucial to engage the clot interface with the tip of the aspiration catheter while performing ADAPT. Placing the aspiration catheter remote from the clot may result in collapse of the artery proximal to the clot with subsequent ADAPT failure.(video 1)video 1.

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