Effect of balloon dilation diameter on carotid stent implantation in patients with symptomatic severe carotid artery stenosis
XIE Jinfeng
Abstract：Objective:To investigate the effect of different balloon dilation diameters on stent implantation in pa-tients with symptomatic severe carotid artery stenosis.Methods:From January 2019 to December 2023,the data of 136 patients who received symptomatic severe carotid artery stenosis in Neixiang County People's Hospital were retrospec-tively analyzed.Patients were divided into different groups according to the size of the pre—dilated balloon used in ca-rotid stent implantation.The control group(n=65)used a 4 mm×30 mm balloon,and the observation group(n=71)used a 5 mm×30 mm balloon.The surgical success rate of the two groups was analyzed.The changes of blood pres-sure,heart rate,peak time of contrast agent,relative peak time,stenosis degree,internal carotid artery diameter,maxi-mum systolic velocity and end—diastolic velocity and national institute of health stroke scale(NIHSS)and incidence of postoperative complications were compared between the two groups before and after surgery.The differences in postop-erative complications between the two groups were also evaluated.Results:Stents were successfully implanted in both groups,and the success rate of operation was 100％.The postoperative systolic blood pressure,diastolic blood pressure,heart rate and NIHSS score of the two groups were significantly lower than those before operation(P＜0.05),but there was no statistical difference between the two groups(P＞0.05).The postoperative stenosis rate,peak systolic ve-locity and end diastolic velocity of the two groups were lower than those before operation,and the observation group was significantly lower than that of the control group,with statistical significance(P＜0.05).The levels of von wille-brand factor,endothelin and internal carotid artery diameter in the two groups were significantly higher than those be-fore operation(P＜0.05),but there was no significant difference between the two groups(P＞0.05).There was no significant difference in the incidence of postoperative complications between the two groups(P＞0.05).Conclusion:Both 4 mm and 5 mm diameter balloons show good safety and efficacy in the treatment of symptomatic severe carotid artery stenosis.However,5 mm balloon pre—dilation showed a much stronger advantage in improving hemodynamics.
Keywords：balloon dilationsevere carotid artery stenosisstent implantationcontrast agentpeak timeinternal carotid arterysystolic blood pressure
Publication Date：2025-04-10
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 263-267 )