The relationship between carotid artery colour Doppler finding and cerebral oximetry

Advanced Biomedical Research

卷:4

关键词: CABG;    carotid artery;    cerebral oximetry;    colour Doppler sonography;   

DOI  :  10.4103/2277-9175.156654

来源: DOAJ

【 摘 要 】

Background: In some cases, permanent reduction in cerebral functioning affects a high percentage of patients undergoing cardiovascular surgery. We studied the relationship between the results of preoperative bilateral carotid artery colour Doppler sonography and regional cerebral oxygen saturation (rSO 2 ) during coronary artery bypass graft surgery (CABG). Materials and Methods: This study was a cross-sectional analytical study conducted with 96 candidates for off-pump CABG. This study determined the percentage of the correlation of rSO 2 with demographic information, diabetes, hyperlipidemia, hypertension, myocardial infraction (MI), and smoking, and also provided information on the presence and type of plaque, intima-media thickness (IMT), and percentage of stenosis of carotid artery detected through colour Doppler sonography. Data were analyzed by the t-test, the Chi-square test, and simple linear regression. Results: In this study, the mean value of rSO 2 increased after intubation compared to the mean before intubation, the difference being statistically significant (P = 0.005). A comparison of the mean rSO 2 of the right side of the brain and the percentage of right carotid obstruction (stenosis of less than 50% vs. stenosis with a range of 50-69%) revealed that the mean rSO 2 at the time of the partial-clamp between carotid stenosis less than 50% and carotid stenosis with a range of 50-69% was statistically significant (P = 0.043).Conclusions: There is no statistically significant correlation between rSO 2 and percentage of carotid artery stenosis less than 70%. It is advised that rSO 2 and carotid stenosis of greater than 70% be studied in future.

【 授权许可】

Unknown