scholarly journals Anatomical features of the occipital artery on CTA and differences between patients with/without stenosis and occlusion of the internal carotid artery

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Tengfei Luan ◽  
Jinlu Yu
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Occipital Artery ◽  
Anatomical Features ◽  
Stenosis And Occlusion

scholarly journals Internal Carotid Artery Injury in Transsphenoidal Surgery: Tenets for Its Avoidance and Refit—A Clinical Study

2021 ◽  
Vol 11 (1) ◽  
pp. 99
Author(s):  
Dmitry Usachev ◽  
Oleg Sharipov ◽  
Ashraf Abdali ◽  
Sergei Yakovlev ◽  
Vasiliy Lukshin ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Cavernous Sinus ◽  
Transsphenoidal Surgery ◽  
Internal Carotid ◽  
Treatment Options ◽  
Carotid Artery Injury ◽  
Anatomical Features ◽  
Stent Grafting ◽  
Internal Carotid Artery Injury

One of the most serious/potentially fatal complications of transsphenoidal surgery (TSS) is internal carotid artery (ICA) injury. Of 6230 patients who underwent TSS, ICA injury occurred in 8 (0.12%). The etiology, possible treatment options, and avoidance of ICA injury were analyzed. ICA injury occurred at two different stages: (1) during the exposure of the sella floor and dural incision over the sella and cavernous sinus and (2) during the resection of the cavernous sinus extension of the tumor. The angiographic collateral blood supply was categorized as good, sufficient, and nonsufficient to help with the decision making for repairing the injury. ICA occlusion with a balloon was performed at the injury site in two cases, microcoils in two patients, microcoils plus a single barrel extra-intracranial high-flow bypass in one case, stent grafting in one case, and no intervention in two cases. The risk of ICA injury diminishes with better preoperative preparation, intraoperative navigation, and ultrasound dopplerography. Reconstructive surgery for closing the defect and restoring the blood flow to the artery should be assessed depending on the site of the injury and the anatomical features of the ICA.

scholarly journals Carotid artery stenting for patients with occipital–vertebral anastomosis

2018 ◽  
Vol 25 (2) ◽  
pp. 212-218
Author(s):  
Ryuichiro Kajikawa ◽  
Toshiyuki Fujinaka ◽  
Hajime Nakamura ◽  
Manabu Kinoshita ◽  
Takeo Nishida ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Vertebral Artery ◽  
High Intensity ◽  
Carotid Artery Stenting ◽  
Internal Carotid ◽  
External Carotid ◽  
Occipital Artery ◽  
Protection Method ◽  
Distal Internal Carotid Artery

Background and purpose We report the outcomes of carotid artery stenting for patients with angiographically visible occipital artery–vertebral artery anastomosis. Methods Among 47 consecutive patients who underwent carotid artery stenting from January 2007 to December 2010, seven patients for whom cerebral angiograms clearly showed occipital artery–vertebral artery anastomosis were selected. Four different protection methods were used: distal internal carotid artery protection; carotid flow reversal; seatbelt and airbag technique; and double protection method of protecting both the external and internal carotid artery. Results One patient with distal internal carotid artery protection showed a high-intensity lesion at the border of the upper thalamus, internal capsule and lateral ventricle wall after carotid artery stenting. The other patient with the double protection method did not show any high-intensity lesions on postoperative diffusion-weighted imaging in the vertebrobasilar territory. All seven patients with visible occipital artery–vertebral artery anastomosis showed ipsilateral vertebral artery severe stenosis or occlusion. Conclusion Large occipital artery–vertebral artery anastomosis may be a pathway for embolic materials during carotid artery stenting. External carotid artery protection is recommended for carotid artery stenting in such patients.

Missed Total Occlusion Due to the Occipital Artery Arising from the Internal Carotid Artery

2006 ◽  
Vol 30 (1) ◽  
pp. 116-117 ◽  
Author(s):  
Bahri Ustunsoz ◽  
Burcak Gumus ◽  
Ali Koksal ◽  
Mert Koroglu ◽  
Okan Akhan
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Occipital Artery ◽  
Total Occlusion

Anomalous Origin of the Occipital Artery from the Internal Carotid Artery

Radiology ◽  
1968 ◽  
Vol 90 (3) ◽  
pp. 550-552 ◽  
Author(s):  
Thomas H. Newton ◽  
Duane A. Young
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Anomalous Origin ◽  
Occipital Artery
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