Arterial Collateralization after Common Carotid Ligation

1973 ◽  
Vol 82 (2) ◽  
pp. 257-262 ◽  
Author(s):  
Jeffrey P. Robbins ◽  
G. Slaughter Fitz-Hugh ◽  
William D. Craddock

The two major indications for common or internal carotid ligation are the resection of neoplasm and the control or prevention of hemorrhage. Sixty percent of those undergoing elective carotid ligation and 12% of those undergoing emergency ligation survive these procedures without evidence of neurological sequelae. This uncompromised survival is based upon the presence or rapid developmnt of collateral circulation to the cerebral vascular bed. Arteriographic studies are utilized to illustrate the development of intra- and extracranial collateralization to the internal carotid artery after interruption of the ipsilateral common carotid. The major collateral circuits demonstrated via a case report are as follows: 1) from the vertebral artery to the external carotid and hence to the internal carotid; 2) from the posterior communicating artery to the internal carotid; and 3) from the ophthalmic artery to the internal carotid.

Author(s):  
David Jordan ◽  
Louise Mawn ◽  
Richard L. Anderson

The anatomy of the orbital vascular bed is complex, with tremendous individual variation. The main arterial supply to the orbit is from the ophthalmic artery, a branch of the internal carotid artery. The external carotid artery normally contributes only to a small extent. However, there are a number of orbital branches of the ophthalmic artery that anastomose with adjacent branches from the external carotid artery, creating important anastomotic communications between the internal and external carotid arterial systems. The venous drainage of the orbit occurs mainly via two ophthalmic veins (superior and inferior) that extend to the cavernous sinus, but there are also connections with the pterygoid plexus of veins, as well as some more anteriorly through the angular vein and the infraorbital vein to the facial vein. A working knowledge of the orbital vasculature and lymphatic systems is important during orbital, extraocular, or ocular surgery. Knowing the anatomy of the blood supply helps one avoid injury to the arteries and veins during operative procedures within the orbit or the eyelid. Inadvertent injury to the vasculature not only distorts the anatomy and disrupts a landmark but also prolongs the surgery and might compromise blood flow to an important orbital or ocular structure. Upon entering the cranium, the internal carotid artery passes through the petrous portion of the temporal bone in the carotid canal and enters the cavernous sinus and middle cranial fossa through the superior part of the forame lacerum . It proceeds forward in the cavernous sinus with the abducens nerve along its side. There it is surrounded by sympathetic nerve fibers (the carotid plexus ) derived from the superior cervical ganglion. It then makes an upward S-shaped turn to form the carotid siphon , passing just medial to the oculomotor, trochlear, and ophthalmic nerves (V1). After turning superiorly in the anterior cavernous sinus, the carotid artery perforates the dura at the medial aspect of the anterior clinoid process and turns posteriorly, inferior to the optic nerve.


2009 ◽  
Vol 12 (1) ◽  
pp. 41-44 ◽  
Author(s):  
G. Nicoletti ◽  
S. Sanguigni ◽  
F. Bruno ◽  
S. Tardi ◽  
G. Malferrari

2016 ◽  
Vol 38 (10) ◽  
pp. 1233-1237 ◽  
Author(s):  
Sandra Bracco ◽  
Paola Gennari ◽  
Ignazio Maria Vallone ◽  
Rossana Tassi ◽  
Maurizio Acampa ◽  
...  

Neurosurgery ◽  
1987 ◽  
Vol 21 (3) ◽  
pp. 296-302 ◽  
Author(s):  
Stuart M. Weil ◽  
Harry R. van Loveren ◽  
Thomas A. Tomsick ◽  
Barbara L. Quallen ◽  
John M. Tew

Abstract Intravascular navigation with nondetachable balloons is a safe, effective method of treatment for inaccessible aneurysms of the internal carotid artery. The rate of ischemic complications is lower than that associated with carotid ligation, and the rate of subsequent hemorrhage is lower than that associated with either carotid ligation or direct clipping. Therefore, for many internal carotid artery aneurysms that originate at or proximal to the ophthalmic artery, the nondetachable balloon technique is an alternative treatment choice. During a 7-year period, 21 aneurysms of the internal carotid artery were treated by the nondetachable balloon technique. All 21 aneurysms were successfully excluded from the circulatory system by either proximal occlusion or trapping of the aneurysm neck. This series consisted of 8 carotid-ophthalmic artery aneurysms, 11 carotid-cavernous aneurysms (6 spontaneous, 5 traumatic), 1 petrous segment aneurysm, and 1 cervical segment aneurysm. At 3 years of follow-up, the following incidences were noted: transient ischemia, 4.7%; infarction, 9.6%; and hemorrhage, 0%. The complications were 1 case of transient hemiparesis and 2 late ischemic events. Fifty per cent of the patients underwent follow-up computed tomography, and thrombosis of the aneurysm was confirmed in all except one case, which was partially thrombosed.


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