No abstract available.
Bilirubin ; Carotid Artery Diseases

No abstract available.
Bilirubin ; Carotid Artery Diseases

No abstract available.
Carotid Artery Diseases

No abstract available.
Carotid Artery Diseases ; Glucose

Study on 60 angina patients that suspected due to coronary artery diseases. Results: prevalence of hypertension was 76.7%, high blood cholesterol seen in 65%, and carotid artery diseases occurred in 73.3%. The rate of coronary artery disease is relative high (40%). Frequency of carotid artery diseases was almost 96% in coronary atherosclerosis group in comparison with 58% in group of patients without coronary artery stenosis or with less 50% of stenosis. Doppler ultrasound is confident, safe, and cheap method that can be performed bedside.
Carotid Artery Diseases ; Angina, Unstable

Approximately 2% of patients who are evaluated for symptomatic carotid artery disease have complete occlusion of a common carotid artery. Surgical management for the symptomatic carotid occlusion has various options. Surgical treatment for these patients should be decided according to the patient's condition causes of the obstruction and collateral circulations. We report our experience of surgical management for symptomatic carotid occlusion with contralateral carotid stenosis which were successfully treated with subclavian-carotid artery bypass and carotid endarterectomy.
Arteries* ; Carotid Arteries* ; Carotid Artery Diseases ; Carotid Artery, Common ; Carotid Stenosis ; Collateral Circulation ; Endarterectomy, Carotid* ; Humans

This experimental study was performed to evaluate the correlation between the stenosis of common carotid artery and the change of velocity wave form in sixteen mongrel dogs. With continuous directional Doppler the velocity waves were recorded from the common carotid artery, which was experimentally stenosed by the graded constrictor. Grouped according to carotid angiogram, there were 16 normals(I), 21 stenoses of less than 35%(II), 16 stenoses of 36-59%(III), 10 stnoses of 60-79%(IV), and 10 stenoses of more than 80%(V). From the analysis of carotid artery velocity tracings, six most discriminating variables were obtained, which were statistically significant between intergroup comparison except between group I and group II. Four best fit discriminant equations for group II, III, IV, or V were derived through the analysis of the combination of these six variables. Using these equations and the values for six variables, the overall accuracy rate of placing it into appropriate group was 84.2%. The accuracy rate of separating normal, stenosis less than 60%, and stenosis more than 60% was 94.8%. The carotid stenosis of 36-59% (group III) showed some change of carotid velocity wave form and could be diagnosed appropriately using the velocity wave form analysis. Therefore it is concluded that the velocity wave form anlaysis would be a useful and handy mehtod to evaluate the occlusive carotid artery disease.
Animals ; Carotid Arteries* ; Carotid Artery Diseases ; Carotid Artery, Common ; Carotid Stenosis ; Constriction, Pathologic ; Diagnosis* ; Dogs

Recently, duplex sonography has been used as a screening test for the evaluation of carotid arterial disease. If an occlusion of atherosclerosis is located at the bifurcation of the common carotid artery or the lower portion of the internal carotid artery, the luminal change may be directly visualized on high-resolution B-mode sonography or color-Doppler images. But when the lesion is located at the high cervical, petrous or cavernous protion of the internal carotid artery, it is difficult to directly visualize the lesion with the sonography. The purpose of this paper is to evaluate the indirect changes on the Doppler patterns of both common carotid arteries with clamping of an internal carotid artery. Thirty common carotid arteries in fifteen normal rabbits were examined with duplex ultrasonography using high-resolution real-time imaging and 7.5MHz pulsed-wave Doppler flow measurements with velocity waveform analysis. Systolic velocity (SV) was 45.4±8.4cm/sec, end-diastolic velocity (EDV) 15.3±4.9cm/sec and resistative index(RI) 0.66±0.08 in the common carotid artery before clamping of the internal carotid artery. SV was 26.3±7.8cm/sec, EDV 6.0±5.2cm/sec and RI 0.78±0.18 in the ipsilateral common carotid artery and SV was 56.6±13.0cm/sec, EDV 22.3±8.2cm. sec and RI 0.61±0.10 in the contralateral common carotid artery after clamping of the internal carotid artery. During clamping of the internal carotid artery, the difference between SV of bilateral common carotid arteries was 30.3±13.8cm/sec and EDV 16.3±9.2cm/sec. There was no difference of the velocity patterns of the common carotid artery between preclamping and declamping of the internal carotid artery. In conclusion, lower SV and EDV in a common carotid artery than that in contralateral side on Doppler patterns strongly suggests an occlusion of ipsilateral internal carotid artery.
Atherosclerosis ; Carotid Artery Diseases ; Carotid Artery, Common* ; Carotid Artery, Internal* ; Constriction* ; Mass Screening ; Phenobarbital ; Rabbits ; Ultrasonography

Carotid Artery Diseases ; Carotid Artery, Common ; Carotid Artery, Internal/diagnostic imaging* ; Humans ; Xanthomatosis

No abstract available.
Carotid Artery, Internal ; Carotid Stenosis ; Cranial Nerve Diseases ; Ophthalmoplegia