1. Department of Graduate Work, Xi′an Medical Univercity, Shaanxi Province, Xi′an 710021, China;
2. Department of Ultrasound, Ninth Hospital of Xi′an, Shaanxi Province, Xi′an 710054, China;
3. Department of Cardiovascular Medicine, Ninth Hospital of Xi′an, Shaanxi Province, Xi′an 710054, China
Abstract:Objective To investigate the influencing factors and the changes of ultrasonic blood flow parameters of renal segmental artery before and after coronary angiography. Methods A total of 46 patients undergoing coronary angiography or percutaneous coronary intervention (PCI) in Ninth Hospital of Xi′an from July 2020 to April 2021 were selected as the study subjects. The peak systolic velocity (PSV),end diastolic velocity (EDV)and resistance index (RI) of bilateral renal segmental arteries were measured before angiography and the 3rd day and the 10th day after angiography.The influencing factors of renal blood flow parameters after radiography were also discussed by multiple linear regression analysis. Results The PSV on the 3rd day and 10th day after angiography were higher than that before angiography,the EDV on the 10th day after angiography was higher than that before angiography and on the 3rd day after angiography,the RI on the 3rd day after angiography was higher than that before angiography, the differences were statistically significant (P<0.05). On the 3rd day after angiography, PSV was related to age and gender, EDV was correlated with age and the using of Calcium Channel Blockers (CCB). While on the 10th day after angiography, PSV was only related to age,EDV was correlated with age, the dose of contrast medium and body mass index. On the 3rd day and 10th day after angiography, RI was related to age and diabetes. Conclusion PSV, EDV and RI of segmental renal arteries show a trend of deterioration and subsequent improvement. After angiography, age and gender are the influencing factors of PSV.Age, CCB, contrast agent volume and body mass index are the influencing factors of EDV, then age and diabetes are the influencing factors of RI. Among them, age is the most significant influencing factor for renal blood flow parameters, regardless of the contrast agent itself.
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