Defective Cerebrovascular Autoregulation in Regions Proximal to Arteriovenous Malformations of the Brain: A Case Report and Topic Review

Neurosurgery ◽  
1984 ◽  
Vol 14 (1) ◽  
pp. 78-82 ◽  
Author(s):  
Robert A. Solomon ◽  
Jost W. Michelsen
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Arteriovenous Malformations ◽  
Internal Carotid ◽  
Left Internal Carotid Artery ◽  
Unique Case ◽  
Complete Occlusion ◽  
Cerebrovascular Autoregulation ◽  
The Right ◽  
The Brain

Abstract We report the case of a patient with a large left subfrontal arteriovenous malformation (AVM) that was supplied by the right internal carotid artery. The anomalous blood supply developed because of complete occlusion of the left internal carotid artery. When the AVM was removed, the patient experienced a hemorrhage into the right basal ganglia. The possibility that this hemorrhage was related to a defect of autoregulation in blood vessels that lie proximal to a large AVM is discussed. Even though this is a unique case, the pathophysiological events that are documented are relevent to the preoperative preparation and surgical management of all patients with AVMs.

Pseudoaneurysm of the left internal carotid artery following tonsillectomy

VASA ◽  
2011 ◽  
Vol 40 (6) ◽  
pp. 491-494 ◽  
Author(s):  
Vávrová ◽  
Slezácek ◽  
Vávra ◽  
Karlová ◽  
Procházka
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Rare Complication ◽  
Left Internal Carotid Artery ◽  
Acute Tonsillitis ◽  
Artery Pseudoaneurysm ◽  
Complete Occlusion ◽  
Endovascular Approach ◽  
Deep Neck Infections

Internal carotid artery pseudoaneurysm is a rare complication of deep neck infections. The authors report the case of a 17-year-old male who presented to the Department of Otorhinolaryngology with an acute tonsillitis requiring tonsillectomy. Four weeks after the surgery the patient was readmitted because of progressive swallowing, trismus, and worsening headache. Computed tomography revealed a pseudoaneurysm of the left internal carotid artery in the extracranial segment. A bare Wallstent was implanted primarily and a complete occlusion of the pseudoaneurysm was achieved. The endovascular approach is a quick and safe method for the treatment of a pseudoaneurysm of the internal carotid artery.

scholarly journals Transcavernous Resection of a Giant Extensive Chondrosarcoma with Endoscopic Assistance

2021 ◽  
Author(s):  
Walid Elshamy ◽  
Burcak Soylemez ◽  
Sima Sayyahmelli ◽  
Nese Keser ◽  
Mustafa K. Baskaya
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Skull Base ◽  
Internal Carotid ◽  
Gross Total Resection ◽  
Petrous Apex ◽  
Left Internal Carotid Artery ◽  
Total Resection ◽  
Complete Occlusion ◽  
Grade Ii

AbstractChondrosarcomas are one of the major malignant neoplasms which occur at the skull base. These tumors are locally invasive. Gross total resection of chondrosarcomas is associated with longer progression-free survival rates. The patient is a 55-year-old man with a history of dysphagia, left eye dryness, hearing loss, and left-sided facial pain. Magnetic resonance imaging (MRI) showed a giant heterogeneously enhancing left-sided skull base mass within the cavernous sinus and the petrous apex with extension into the sphenoid bone, clivus, and the cerebellopontine angle, with associated displacement of the brainstem (Fig. 1). An endoscopic endonasal biopsy revealed a grade-II chondrosarcoma. The patient was then referred for surgical resection. Computed tomography (CT) scan and CT angiogram of the head and neck showed a left-sided skull base mass, partial destruction of the petrous apex, and complete or near-complete occlusion of the left internal carotid artery. Digital subtraction angiography confirmed complete occlusion of the left internal carotid artery with cortical, vertebrobasilar, and leptomeningeal collateral development. The decision was made to proceed with a left-sided transcavernous approach with possible petrous apex drilling. During surgery, minimal petrous apex drilling was necessary due to autopetrosectomy by the tumor. Endoscopy was used to assist achieving gross total resection (Fig. 2). Surgery and postoperative course were uneventful. MRI confirmed gross total resection of the tumor. The histopathology was a grade-II chondrosarcoma. The patient received proton therapy and continues to do well without recurrence at 4-year follow-up. This video demonstrates steps of the combined microsurgical skull base approaches for resection of these challenging tumors.The link to the video can be found at: https://youtu.be/WlmCP_-i57s.

scholarly journals An Important Clue in the Sonographic Diagnosis of Internal Carotid Artery Agenesis: Ipsilateral Common Carotid Artery Hypoplasia

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Omer Kaya ◽  
Cengiz Yilmaz ◽  
Bozkurt Gulek ◽  
Gokhan Soker ◽  
Gokalp Cikman ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Common Carotid Artery ◽  
Internal Carotid ◽  
Radiology Department ◽  
Left Internal Carotid Artery ◽  
Doppler Us ◽  
Healthcare Center ◽  
Important Clue ◽  
The Right

A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carotid artery (ICA) following Doppler ultrasonographic (US) and digitally-subtracted angiographic (DSA) examinations performed in an outer healthcare center in order to eliminate the underlying cause of her complaint of amorosis fugax, later applied to our hospital with the same complaint. At Doppler US performed in our hospital’s radiology department, her right common carotid artery (CCA) was normal, but her left CCA was hypoplastic. The right internal artery (ICA) was validated as normal. At the left side, however, the ICA was apparent only as a stump and it did not demonstrate a continuity. The diagnosis of ICA agenesis was confirmed by the utilization of Doppler US, CT, and DSA imaging, and it was concluded also that ipsilateral CCA hypoplasia could be evaluated as an important clue to the diagnosis of ICA agenesis.

scholarly journals Novel use of flow diversion for the treatment of aneurysms associated with arteriovenous malformations

2017 ◽  
Vol 42 (6) ◽  
pp. E7 ◽  
Author(s):  
Craig Kilburg ◽  
Philipp Taussky ◽  
M. Yashar S. Kalani ◽  
Min S. Park
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Arteriovenous Malformations ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Flow Diversion ◽  
Complete Occlusion ◽  
Martin Grade ◽  
Flow Diverting Stent

The use of flow-diverting stents for intracranial aneurysms has become more prevalent, and flow diverters are now routinely used beyond their initial scope of approval at the proximal internal carotid artery. Although flow diversion for the treatment of cerebral aneurysms is becoming more commonplace, there have been no reports of its use to treat flow-related cerebral aneurysms associated with arteriovenous malformations (AVMs). The authors report the cases of 2 patients whose AVM-associated aneurysms were managed with flow diversion. A 40-year-old woman presented with a history of headaches that led to the identification of an unruptured Spetzler-Martin Grade V, right parietooccipital AVM associated with 3 aneurysms of the ipsilateral internal carotid artery. Initial attempts at balloon-assisted coil embolization of the aneurysms were unsuccessful. The patient underwent placement of a flow-diverting stent across the diseased vessel; a 6-month follow-up angiogram demonstrated complete occlusion of the aneurysms. In the second case, a 57-year-old man presented with new-onset seizures, and an unruptured Spetzler-Martin Grade V, right frontal AVM associated with an irregular, wide-necked anterior communicating artery aneurysm was identified. The patient underwent placement of a flow-diverting stent, and complete occlusion of the aneurysm was observed on a 7-month follow-up angiogram. These 2 cases illustrate the potential for use of flow diversion as a treatment strategy for feeding artery aneurysms associated with AVMs. Because of the need for dual antiplatelet medications after flow diversion in this patient population, however, this strategy should be used judiciously.

Agenesis of the left internal carotid artery associated with an aneurysm on the right carotid syphon

1977 ◽  
Vol 46 (5) ◽  
pp. 677-680 ◽  
Author(s):  
Antti Servo
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Congenital Absence ◽  
Left Internal Carotid Artery ◽  
Content Type ◽  
The Right ◽  
Fine Print

✓ A case is reported with congenital absence of the left internal carotid artery associated with an aneurysm on the contralateral carotid syphon. Eight similar cases are reviewed in brief. The possibility of hemodynamic abnormality as the cause of the aneurysm is discussed.

Common carotid to intracranial internal carotid bypass venous graft

1971 ◽  
Vol 34 (1) ◽  
pp. 114-118 ◽  
Author(s):  
William M. Lougheed ◽  
Brian M. Marshall ◽  
Michael Hunter ◽  
Ernest R. Michel ◽  
Harley Sandwith-Smyth
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Bypass Graft ◽  
Left Internal Carotid Artery ◽  
Anterior Clinoid Process ◽  
Content Type ◽  
The Common ◽  
The Right ◽  
Inside Out

✓ A 54-year-old woman was admitted with a complete occlusion of the right internal carotid artery and a 25% stenosis of the left internal carotid artery. Intracranial circulation on the right side was restored by taking a vein from the leg and anastomosing the vein of the intracranial carotid artery just distal to the anterior clinoid process. Prior to insertion the vein was turned inside out, the valves removed and then reinverted allowing the distal end of the vein to be anastomosed to the intracranial internal carotid artery. The blood flow was therefore reversed in the vein. The proximal end of the vein was anastomosed to the common carotid artery. Upon completion there was excellent circulation in the bypass graft and internal carotid artery.

scholarly journals Considerations on The Origin of The Ophthalmic Artery from The Internal Carotid Artery

2018 ◽  
Vol 24 (4) ◽  
pp. 179-183
Author(s):  
Vărgău Iulia ◽  
Bordei Petru ◽  
Ispas Viorel
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Ophthalmic Artery ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Morphological Features ◽  
Left Internal Carotid Artery ◽  
Ct Scanner ◽  
The Right ◽  
Internal Carotid Arteries

Abstract The study of CT angiographies performed on a CT scanner GE LightSpeed VCT16 Slice CT revealed some morphological features of the ophthalmic artery related to origin, morphometry and the internal carotid arteries in the vicinity of this artery. The diameter of the left internal carotid artery under the origin of the ophthalmic artery was between 4.0-5.8 mm and that of the right ophthalmic artery at the same level was between 4.1-5.3 mm. Under the origin of the ophthalmic artery, the internal carotid arteries were larger in diameter on the leftside in 80% of cases, with differences of 0.1-0.3 mm, and on the right side these differences were between 0.1-0.2 mm, 20% of cases. The diameter of the left internal carotid artery above the origin of the ophthalmic artery was 3.7-5.0 mm, and the origin of the right carotid artery at the same level was 3.8-5.0 mm.

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