scholarly journals Internal Carotid Artery Embolism by Shotgun Pellet

1978 ◽  
Vol 5 (3) ◽  
pp. 325-326 ◽  
Author(s):  
Jitendar M. Sethi ◽  
Bohdan Rozdilsky
Keyword(s):  
Foreign Body ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Gunshot Wound ◽  
Carotid Arteries ◽  
Short Communication ◽  
Internal Carotid ◽  
Cerebral Arteries ◽  
Artery Embolism ◽  
The Subject

SUMMARY:Various examples of foreign body embolization of cerebral arteries, usually followed by serious consequences, have been reported (Lindberg et al, 1961; Chason et al, 1963; Steele et al, 1972; Wetli et al, 1972). However, a shotgun pellet entering the left atrium of the heart through a gunshot wound of the chest with subsequent embolic occlusion of one of the carotid arteries appears to be unique. It is the subject of this short communication.

Carotid Duplex Velocity Criteria Revisited for the Diagnosis of Carotid In-Stent Restenosis

Vascular ◽  
2007 ◽  
Vol 15 (3) ◽  
pp. 119-125 ◽  
Author(s):  
Ali F. AbuRahma ◽  
Damian Maxwell ◽  
Kris Eads ◽  
Sarah K. Flaherty ◽  
Tabitha Stutler
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Ct Angiography ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Carotid Angiography ◽  
Residual Stenosis ◽  
Stent Restenosis ◽  
The Mean ◽  
In Stent Restenosis

Carotid percutaneous transluminal angioplasty/stenting has become an accepted treatment modality for carotid artery stenosis in high-risk patients. There has been an ongoing debate regarding which duplex ultrasound (DUS) criteria to use to determine the rate of in-stent restenosis. This prospective study revisits DUS criteria for determining the rate of in-stent restenosis. In analyzing a subset of 12 patients (pilot study) who had both completion carotid angiography and DUS within 30 days, 10 patients with normal post-stenting carotid angiography (< 30% residual stenosis) had peak systolic velocities (PSVs) of the stented internal carotid artery (ICA) of ≤ 155 cm/s and two patients with ≥ 30% residual stenosis had internal carotid artery (ICA) PSVs of > 155 cm/s. Eighty-three patients who underwent carotid stenting as part of clinical trials were analyzed. All patients underwent post-stenting carotid DUS that was done at 1 month and every 6 months thereafter. PSVs and end-diastolic velocities of the ICA and common carotid artery were recorded. Patients with PSVs of the ICA of > 140 cm/s underwent carotid computed tomographic (CT) angiography. The perioperative stroke rate was 1.2%. When the old DUS velocity criteria for nonstented carotid arteries were applied, 54% of patients had ≥ 30% restenosis (PSV of > 120 cm/s), but when our new proposed DUS velocity criteria for stented arteries were applied (PSV of > 155 cm/s), 33% had ≥ 30% restenosis at a mean follow-up of 18 months ( p = .007). The mean PSVs for patients with normal stented carotid arteries based on CT angiography, were 122 cm/s versus 243 cm/s for ≥ 30% restenosis and 113 cm/s versus 230 cm/s for ≥ 30% restenosis based on our new criteria. The mean PSVs of in-stent restenosis of 30 to < 50%, 50 to < 70%, and 70 to 99%, based on CT angiography, were 205 cm/s, 264 cm/s, and 435 cm/s, respectively. Receiver operating curve analysis demonstrated that an ICA PSV of > 155 cm/s was optimal for detecting ≥ 30% in-stent restenosis, with a sensitivity of 100%, a specificity of 90%, a positive predictive value of 74%, and a negative predictive value of 100%. The currently used carotid DUS velocity criteria overestimated the incidence of in-stent restenosis. We propose new velocity criteria for the ICA PSV of > 155 cm/s to define ≥ 30% in-stent restenosis.

Role of magnetic resonance imaging in evaluating sphenoid sinus and internal carotid artery

2009 ◽  
Vol 123 (12) ◽  
pp. 1331-1337 ◽  
Author(s):  
H G Hatipoglu ◽  
M A Cetin ◽  
A Selvi ◽  
E Yuksel
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Sphenoid Sinus ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Minimal Distance ◽  
Resonance Imaging ◽  
Internal Carotid Arteries

AbstractObjective:This study aimed to determine whether magnetic resonance imaging has a role in the evaluation of the sphenoid sinus and internal carotid artery. In addition, we aimed to establish reference measurements for the minimal distance between the internal carotid arteries.Method:The sphenoid sinuses and neighbouring internal carotid arteries of 90 patients were evaluated using sagittal T1-weighted and axial and coronal T2-weighted magnetic resonance images.Results:Sphenoid sinus pneumatisation was categorised as occipitosphenoidal (0 per cent), conchal (3.3 per cent), presellar (14.4 per cent) or sellar (82.2 per cent). The internal carotid artery protruded into the sphenoid sinus in 32.8 per cent, with a septum in 9.4 per cent. The incidence of sellar-type sphenoid sinus pneumatisation was higher in patients with protrusion of the internal carotid artery into the sphenoid sinus (p < 0.001). The incidence of presellar pneumatisation was higher in patients without internal carotid artery protrusion (p < 0.001). The minimal distance between the internal carotid arteries varied between 9.04 and 24.26 mm (mean, 15.94 mm).Conclusion:Magnetic resonance imaging can provide useful information about the sphenoid sinus and internal carotid artery, prior to endoscopic sphenoidotomy and trans-sphenoidal hypophysectomy.

scholarly journals The arteries of the brain base in the degu (Octodon degus Molina 1782)

2014 ◽  
Vol 59 (No. 7) ◽  
pp. 343-348 ◽  
Author(s):  
W. Brudnicki ◽  
B. Skoczylas ◽  
R. Jablonski ◽  
W. Nowicki ◽  
A. Brudnicki ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Basilar Artery ◽  
Internal Carotid ◽  
Cerebral Arteries ◽  
Left Vertebral Artery ◽  
Brain Arteries ◽  
Middle Cerebral Arteries ◽  
The Brain ◽  
Synthetic Latex

The brain arteries derived from 50 adult degu individuals of both sexes were injected with synthetic latex introduced with a syringe into the left ventricle of the heart under constant pressure. After fixation in 5% formalin and brain preparation, it was found that the sources of the brain&rsquo;s supply of blood are vertebral arteries and the basilar artery formed as a result of their anastomosis. The basilar artery gave rise to caudal cerebellar arteries and then divided into two branches which formed the arterial circle of the brain. The internal carotid arteries in degus, except for one case, were heavily reduced and did not play an important role in the blood supply to the brain. The arterial circle of the brain in 48% of the cases was open from the rostral side. Variation was identified in the anatomy and the pattern of the arteries of the base of the brain in the degu which involved an asymmetry of the descent of caudal cerebellar arteries (6.0%), rostral cerebellar arteries (8%) as well as middle cerebral arteries (12%). In 6% of the individuals double middle cerebral arteries were found. In one out of 50 cases there was observed a reduction in the left vertebral artery and the appearance of the internal carotid artery on the same side. In that case the left part of the arterial circle of the brain was supplied with blood by an internal carotid artery, which was present only in that animal.

scholarly journals Stenting for Atherosclerotic Stenosis of the Intracranial or Skull Base Cerebral Arteries

2004 ◽  
Vol 10 (1_suppl) ◽  
pp. 97-100 ◽  
Author(s):  
T. Harakuni ◽  
A. Hyodo ◽  
T. Shingaki ◽  
M. Kugai ◽  
T. Kinjyo ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Skull Base ◽  
Internal Carotid ◽  
Cerebral Arteries ◽  
Transluminal Angioplasty ◽  
Present Condition ◽  
Atherosclerotic Stenosis ◽  
Petrous Portion ◽  
Percutaneous Transluminal

Since May 1992, we have performed percutaneous transluminal angioplasty (PTA) or stenting 70 times for 65 lesions in 62 patients with atherosclerotic stenosis of the intracranial or skull base cerebral arteries. Stenting was carried out nine times for nine lesions in nine cases. Stenting was performed on patients with an average age of 62. The patients were eight men and one woman. The stenotic lesions involved the internal carotid artery (petrous portion) in four cases, the internal carotid artery (cavernous portion) in two cases, the internal carotid artery (supraclinoid portion) in one case, the middle cerebral artery (M1) in one case, and the vertebral artery (V4) in one case. The degree of stenosis ranged from 70% to 99%, with a mean of 80%. A stent for coronary arteries was used in all cases. After PTA was carried out in four cases, their initial extension was inadequate, and dissection was performed in five cases after PTA. As for the results of the treatment, subarachnoid haemorrhage occurred in one case due to perforation by the guidewire, and a major deficit was accepted. During the operation, asymptomatic cerebral infarction by distal embolism occurred in one case. Although obstruction of the lesion occurred three months after treatment in one case, symptoms did not appear. Stents used for atherosclerotic stenosis of the intracranial or skull base cerebral arteries still do not have sufficient performance. Although the stenting had problems, such as a prolonged patent, in the present condition, it was effective in terms of recovery from complications due to PTA.

scholarly journals Pseudoaneurysma of the internal carotid artery caused by a gunshot wound

2013 ◽  
Vol 8 (S1) ◽  
Author(s):  
Dragan Piljić ◽  
Mustafa Tabaković ◽  
Amir Tursunović
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Gunshot Wound ◽  
Internal Carotid

Angiographic Profile in Childhood Moyamoya Disease

1991 ◽  
Vol 32 (6) ◽  
pp. 488-491 ◽  
Author(s):  
P. N. Jayakumar ◽  
B. Y. T. Arya ◽  
M. K. Vasudev
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Moyamoya Disease ◽  
Internal Carotid ◽  
Small Vessel Disease ◽  
Cerebral Arteries ◽  
Japanese Literature ◽  
Middle Cerebral Arteries ◽  
The Common ◽  
Stenotic Lesions

The cerebral angiograms of 8 patients with childhood moyamoya disease showed that the common findings were stenosis/occlusion of the supraclinoid internal carotid artery and the proximal segments of the anterior and middle cerebral arteries and basal moyamoya. The volume of basal moyamoya and its collateral supply depended upon the stage of the disease. Leptomeningeal collaterals were frequent in the later stages. Stenotic lesions in the posterior circulation were seen in a majority (75%) of patients. A feature unique to the study was evidence of intracranial small-vessel disease and stenotic cervical internal carotid artery in half of the cases. The disease in the ethnic caucasian Indians seems largely similar to the classical disease frequently reported in the Japanese literature.

Reconstitution of “totally” occluded internal carotid arteries

1979 ◽  
Vol 50 (6) ◽  
pp. 747-757 ◽  
Author(s):  
Roger W. Countee ◽  
Thurairasah Vijayanathan
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Injection Technique ◽  
Complete Relief ◽  
Content Type ◽  
Internal Carotid Arteries ◽  
Angiographic Technique ◽  
Fine Print

✓ The authors describe their experiences with five patients with delayed transient ischemic symptoms homolateral to internal carotid artery (ICA) occlusions. In each instance, initial arteriograms were interpreted as showing irreversible occlusions of these arteries in the neck and microvascular bypass procedures were contemplated. However, after repeat arteriographic evaluations with a modified injection technique, certain angiographic features were identified that suggested the mechanism of the symptoms in these patients and that their ICA's could be reconstituted in the neck. This was successfully accomplished in each patient with complete relief of ischemic symptoms. The angiographic technique employed and the arterial flow patterns identified in these patients are discussed. The details of the operative technique are described. It is concluded that routine arteriographic techniques may be inadequate to identify the reversible carotid occlusion. This may account for some of the confusion which surrounds the surgery of these vessels as well as the failure of extracranial-intracranial bypass to relieve recurrent ischemic symptoms in these individuals.

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