Assessment of Doppler flow parameters of the retrobulbar arteries and internal carotid artery in patients with glaucoma: the significance of ophthalmic artery peak ratio and the intima–media thickness of the internal carotid artery

2020 ◽  
Vol 40 (12) ◽  
pp. 3337-3348
Author(s):  
Mustafa Kalayci ◽  
Mehmet Tahtabasi
2016 ◽  
Vol 38 (05) ◽  
pp. 523-529 ◽  
Author(s):  
Jeire Steinbuch ◽  
Anouk van Dijk ◽  
Floris Schreuder ◽  
Martine Truijman ◽  
Alexandra de Rotte ◽  
...  

Abstract Purpose Inhomogeneity of arterial wall thickness may be indicative of distal plaques. This study investigates the intra-subject association between relative spatial intima-media thickness (IMT) inhomogeneity of the common carotid artery (CCA) and the degree of stenosis of plaques in the internal carotid artery (ICA). Materials and Methods We included 240 patients with a recent ischemic stroke or transient ischemic attack and mild-to-moderate stenosis in the ipsilateral ICA. IMT inhomogeneity was extracted from B-mode ultrasound recordings. The degree of ICA stenosis was assessed on CT angiography according to the European Carotid Surgery Trial method. Patients were divided into groups with a low (≤ 2 %) and a high (> 2 %) IMT inhomogeneity scaled with respect to the local end-diastolic diameter. Results 182 patients had suitable CT and ultrasound measurements. Relative CCA-IMT inhomogeneity was similar for the symptomatic and asymptomatic side (difference: 0.02 %, p = 0.85). High relative IMT inhomogeneity was associated with a larger IMT (difference: 235 µm, p < 0.001) and larger degree of ICA stenosis (difference: 5 %, p = 0.023) which remained significant (p = 0.016) after adjustment for common risk factors. Conclusion Regardless of common risk factors, high relative CCA-IMT inhomogeneity is associated with a greater degree of ICA stenosis and is therefore indicative of atherosclerotic disease. The predictive value of CCA-IMT inhomogeneity for plaque progression and recurrence of cerebrovascular symptoms will be determined in the follow-up phase of PARISK.


2021 ◽  
Vol 84 (3) ◽  
Author(s):  
K Kurkcu ◽  
B Kara ◽  
A.S. Koc ◽  
S.O. Keskek

Backgroung and study aims : Factors such as age, obesity, diabetes mellitus and hyperlipidemia that cause adverse prognosis in acute pancreatitis also cause an increase in carotid intima-media thickness. In this study, we aimed to investigate the usability of the measurement of carotid intima-media thickness, which is an easy to apply, cost-effective means of measurement applied to the patients, in predicting AP prognosis, apart from the criteria currently utilized to predict AP prognosis. Patient and methods : 101 patients diagnosed with acute pancreatitis were prospectively enrolled into the study. Right and left common carotid artery intima-media thickness, right and left internal carotid artery intima-media thickness were measured with ultrasonographic images performed within the first 24 hours of hospitalization. local or systemic complications and organ failure development were monitored in the follow-up of the patients. Results : After the ROC analysis was performed and the threshold value was determined. The the patients with main and internal carotid artery intima-media thickness above 0.775 mm were seen to have a more severe AP (p = 0.000). Local and systemic complications and organ failure were also more common in these patients. Conclusions : Measurement of carotid intima-media thickness is a non-invasive method that can be used to predict the prognosis in patients with acute pancreatitis at presentation.


2019 ◽  
Vol 35 (1) ◽  
Author(s):  
Oguz Guvenmez Asim Kayiklik

Purpose: To compare the internal carotid artery intima-media thickness (CAIMT) in patients with ocular PEX and healthy controls and to show that ocular PEX may be related to atherosclerosis, or not. Study Design: Cross-sectional study. Place and Duration of Study: Department of Ophthalmology in Adana Ortadogu Hospital, Adana, Turkey. The study was conducted between January 2017 and January 2018. Material and Methods: There were 32 participants in the study. In the biomicroscopic anterior segment examination, 16 patients were diagnosed with pseudoexfoliative material on the pupil margin or anterior lens capsule. These patients formed the first group (Group I).16 non-PEX patients were accepted as a control group (Group II). Patients with systemic disease such as hypertension, diabetes mellitus were excluded from the study. CAIMT was measured and noted in all participants. Carotid artery Doppler USG was used to measure CAIMT. The data were compared by statistical analysis. Results: In Group I and Group II, the age of the patients did not differ significantly (p > 0.05). In Group I and Group II, gender distribution was not significant (p > 0.05). In Group I, CAIMT was significantly higher than in Group II (p < 0.05). Conclusion: Ocular PEX appears to be associated with atherosclerosis. Keywords: Ocular pseudoexfoliation, atherosclerosis, carotid artery.


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