25 April 2022 : Clinical Research
A Retrospective Study of 320 Patients Treated with Carotid Artery Stenting at 4 General Hospitals in Zhejiang Province to Establish a Risk Score for Cerebral Hypoperfusion Syndrome
Yuan Liu1B, Changyang Zhong1ABCEF*, Peng Wang2BC, Jianhong Yang3DF, Chenghua Xu4BF, Zuyong Zhang5AFGDOI: 10.12659/MSM.935697
Med Sci Monit 2022; 28:e935697
Table 4 Comparison of relevant indices between the 2 groups.
| Postoperative high perfusion group | No postoperative hyperperfusion group | χ2/t-value | P-value | |
|---|---|---|---|---|
| Preoperative CVR (mmHg) | 2.95±0.75 | 2.17±0.66 | 7.031 | <0.001 |
| Preoperative asymmetry index | 0.26±0.61 | 0.19±0.06 | 6.851 | <0.001 |
| PI | 2.17±0.78 | 1.52±0.56 | 6.524 | <0.001 |
| DMTT (s) | 3.96±0.82 | 2.64±0.48 | 13.989 | <0.001 |
| Blood flow difference between ipsilateral and contralateral MCA (s) | 1.93±0.81 | 1.43±0.38 | 5.974 | <0.001 |
| V postoperative/V Preoperative | 1.69±0.36 | 1.28±0.21 | 10.017 | <0.001 |
| BP postoperative/BP preoperative | 1.28±0.17 | 1.01±0.13 | 11.929 | <0.001 |
| rTTP index | 0.26±0.10 | 0.14±0.03 | 13.388 | <0.001 |
| rCBV index | 0.33±0.12 | 0.19±0.05 | 11.656 | <0.001 |
| Mean blood flow velocity of the MCA 24 hours before operation (cm/s) | 68.28±26.06 | 51.59±12.16 | 6.333 | 0.117 |
| Mean transit time Resting MTT (s) | 5.62±0.92 | 4.63±0.42 | 1.573 | <0.001 |
| ΔCCT (s) | 2.30±1.45 | 1.35±0.40 | 7.733 | <0.001 |
| Preoperative CCT(s) | 9.24±1.33 | 7.03±0.73 | 15.006 | <0.001 |
| CVR – cerebral vascular resistance; PI – pulsatility index; DMTT – mean transit time difference; TTP – time to peak; rCBV – central blood volume; MTT – resting mean transit time; CCT – cerebral circulation time. | ||||