ABSTRACT
OBJECTIVE: To evaluate the association between brachial artery blood velocity by color Doppler flow imaging (CDFI) and primary maturation of radio-cephalic autologous arteriovenous fistula (RC-AVF). METHODS: Clinical data from patients who underwent end-to-side cephalic-radial anastomosis were collected from December 2015 to December 2020. The anastomosis diameter (mm), blood velocity (cm/s), and brachial artery diameters (mm) 7 cm proximal to the elbow pre- and postoperation were measured by GE LOGIC-E9 ultrasound. The AVF was mature if it could be cannulated successfully and the blood flow was >200 ml/min during dialysis. RESULTS: A total of 197 patients were included in our statistical analysis. A total of 163 patients had mature AVFs, and 34 patients had poor maturity (assisted and failed maturation). There were no significant differences in the clinical characteristics, peak systolic velocity (PSV) of the brachial artery, diameter of the radial artery or cephalic vein measured by CDFI preoperatively. The diameter of the brachial artery (5.41 ± 0.77 vs 4.89 ± 0.90, p = 0.00) and the fistula anastomosis (2.79 ± 0.78 vs 2.45 ± 0.85, p = 0.02) and PSV of the brachial artery (123.58 ± 37.11 vs 89.63 ± 28.31, p = 0.00) in the mature group were higher than those in the immature group. CONCLUSION: Brachial artery PSV and increased brachial artery PSV could be used to detect RC-AVF maturation in the early stage.
Subject(s)
Arteriovenous Fistula , Arteriovenous Shunt, Surgical , Humans , Brachial Artery/surgery , Arteriovenous Shunt, Surgical/methods , Renal Dialysis/methods , Vascular Patency , Blood Flow Velocity , Radial Artery , Treatment OutcomeABSTRACT
Objective: To compare the efficacy and safety of ultrasound-guided stellate ganglion block (UGSGB) through anterior scalenus muscle (ASM) and through internal jugular vein (IJV). Methods: Totally 144 patients with cervicogenic headache were distributed into 2 groups randomly. USSGB was performed through ASM (ASM group, n=72) or through IJV (IJV group, n=72), respectively. The ratio of successful blocks, the appearing time of Honer syndrome and the ratio of adverse reaction were compared between two groups. Results: The successful block ratio was 97.22% (70/72) of ASM group and 98.61%(71/72) of IJV group, while Honer syndrome appearing times was (2.18±0.96)min and (1.96±0.87)min after operation, respectively. There was no significant difference between 2 groups (both P>0.05). The adverse reaction ratio was 19.44%(14/72) of SCM group and 4.17%(3/72) of IJV group (P=0.01). Conclusion: USSGB through ASM approach and USSGB through IJV approach are both safe and efficient. IJV approach has less adverse reaction than SCM approach.
ABSTRACT
Objective To evaluate the basilar artery hemodynamical changes in cervical rotation and ventral flexion by color Doppler flow imaging(CDFI). Methods Basilar artery blood flow were detected during cervical With cervical right lateral,left lateral rotation and ventral flexion, the detection ratio of basilar artery by ultrasound were 89% ,84% ,81% respectively. There were no difference in statistics between the detction ratio of three kinds during cervical flexion,peak systolic velocity(PSV) and end-diastolic velocity(EDV) decreased apparently during left lateral rotation,which did not change during right lateral rotation. No changing was found with resistant index between the three kinds of cervical position. Conclusions The hemodynamic changing of basilar artery during cervical rotation and flexion could be detected by CDFI accurately,which might be useful in clinical study.
