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 6 Scoring system for the risk of CHS after carotid stenting.
| Variable | Logistic scoring system | Additive scoring system |
|---|---|---|
| Willis ring integrity | ||
| Good | 0 | 1 |
| Poor | 2 | 5 |
| Willis ring integrity | ||
| 1.2–2.5 | 0 | 1 |
| Abnormal | 2 | 6 |
| rTTP index | ||
| ≤0.22 | 0 | 1 |
| >0.22 | 3 | 31 |
| Preoperative CCT | ||
| ≤7.1 s | 0 | 1 |
| >7.1 s | 2 | 11 |
| Resting MTT | ||
| ≤4.85 s | 0 | 1 |
| >4.85 s | 2 | 8 |
| CHS – cerebral hypoperfusion syndrome; TTP – time to peak; CCT – cerebral circulation time; MTT – resting mean transit time. | ||






