Saratov JOURNAL of Medical and Scientific Research

carotid stenosis

Carotid arteries ultrasound screening in asymptomatic patients

Year: 2019, volume 15 Issue: №1 Pages: 190-199
Heading: Neurology Article type: Original article
Authors: Shchanitsyn I.N., Shvarts E.Yu., Ishmukhametova R.A., Vozdeeva A.S.
Organization: Saratov State Medical University
Summary:

Objective: to reveal the most important predictors of carotid artery stenosis in ambulatory patients of Saratov and Saratov Region with the help of multivariate analysis and to define an ideal patient for ultrasound screening. Material and Methods. In 2014-2018 off-site consultations and ultrasound screening were performed for asymptomatic patients with suspected carotid artery disease in outpatient clinics of Saratov and Saratov Region. Those patients were referred for screening by neurologists and general practitioners. The study used 470 medical charts. The multivariate regression analysis was performed to identify independent predictors of carotid artery stenosis (>50%). Results. The >30% carotid artery stenosis was detected in 24.5% (115/470) of participants, >50% stenosis — in 10.2% (48/470) of participants, >70% stenosis — in 2.9% (14/470) of participants. The multivariate analysis revealed that the odds of finding >50% stenosis in patients chosen by neurologists and general physicians for screening was significantly higher in the presence of following factors: age older then 72, male sex, acute cerebrovascular event more than 6 months ago, atherosclerosis in arteries of lower extremities, episodes of speech disorder. The point scale for risk assessment has been created. In the absence of prognostic factors the absolute risk of >50% stenosis was only 3%. In the presence of 1 point it was 16% and more than 50% in the presence of 4 points. Conclusion. The analysis we conducted allowed to specify major predictors of atherosclerosis in patients followed in outpatient clinics of Saratov and Saratov Region and to create the patient model which allows to optimize selection for ultrasound screening.

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Transradial approach for carotid artery stenting

Year: 2016, volume 12 Issue: №2 Pages: 304-311
Heading: Neurology Article type: Review
Authors: Shchanitsyn I.N., Sharafutdinov M.R., Larin I.V.
Organization: Saratov State Medical University, State Autonomous Institution of Health of the Republic of Tatarstan "Emergency Hospital"
Summary:

Carotid artery stenting (CAS) has proved to be a valuable alternative to carotid endarterectomy in patients with carotid artery stenosis. Therefore, avoiding complications becomes crucial in CAS. The results are constantly improving because of the introduction of new embolic protection devices and small calibre stenting systems. For many years, transfemoral approach has been the most common access during CAS, mainly due to its short learning curve and possibility to accept large bore catheters. However, this approach is not always feasible because of vessel pathology or aberrant anatomy of the iliofemoral arteries and the aortic arch. Carotid artery stenting using transradial approach was safe and technically feasible, but limited data exist on radial access in carotid artery stenting. The rationale for the transradial approach was to attempt to reduce the incidence of bleeding complications at the vascular access site and to avoid the necessity for prolonged bed rest. Several pilot studies and one randomised prospective trial have confirmed the safety and efficacy of transradial approach for CAS. This article reports review of literature and our initial experience using the radial artery as access for carotid stenting.

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