Characteristics of patients during perioperative period
| Variable | SAP (n=26) | Regular CAS (n=30) | P value |
| First stage | |||
| Periprocedural BP, mm Hg, mean±SD | |||
| Preprocedural SBP | 141.46±18.33 | 138.97±22.36 | 0.74 |
| Preprocedural DBP | 80.31±10.66 | 76.80±11.85 | 0.32 |
| Postprocedural SBP | 130.00±22.09 | 115.43±20.49 | 0.01 |
| Postprocedural DBP | 73.54±10.01 | 67.13±14.64 | 0.15 |
| Max balloon diameter in mm, median (IQR) | 3.00 (2.50–3.00) | 4.00 (4.00–4.50) | <0.01 |
| MLD, %, mean±SD | |||
| Preprocedure | 89.48±17.09 | 92.32±2.98 | 0.85 |
| Postprocedure | 61.80±19.72 | 23.42±16.16 | <0.01 |
| Preprocedural time of DSA agent from carotid to capillary, mean±SD | 4.61±2.19 | 4.96±1.74 | 0.26 |
| Postprocedural time of DSA agent from carotid to capillary, mean±SD | 3.55±1.51 | 3.60±1.62 | 0.78 |
| Second stage | |||
| Periprocedural BP, mm Hg, mean±SD | |||
| Preprocedural SBP | 136.48±13.78 | – | – |
| Preprocedural DBP | 81.12±10.65 | – | – |
| Postprocedural SBP | 113.35±20.61 | – | – |
| Postprocedural DBP | 67.69±14.69 | – | – |
| Max balloon diameter in mm, median (IQR) | 4.00 (4.00–5.00) | – | – |
| MLD, %, mean±SD | |||
| Preprocedure | 61.80±19.72 | – | – |
| Postprocedure | 18.11±14.56 | – | – |
| Preprocedural time of DSA agent from carotid to capillary, mean±SD | 3.88±1.66 | – | – |
| Postprocedural time of DSA agent from carotid to capillary, mean±SD | 3.42±1.37 | – | – |
BP, blood pressure; DBP, diastolic blood pressure; DSA, digital subtraction angiography; MLD, minimum lumen diameter; SAP, staged angioplasty; SBP, systolic blood pressure.