Variables | Assessment schedule | |||||
---|---|---|---|---|---|---|
−5 min | 0 | +7 min | +14 min | +20 min | +27 min | |
Baseline (Reference)a | Needle insertiona | During needle retentiona | Needle removala | Finala | ||
Diameter of radial artery (mm) | 2.01 (1.83, 2.19) | 0.08 (−0.06, 0.21) | −0.00 (−0.14, 0.13) | 0.06 (−0.08, 0.19) | 0.00 (−0.13, 0.14) | −0.07 (−0.20, 0.07) |
Maximum velocity of blood flow (cm/s) | 5.29 (1.92, 8.65) | 2.30*** (1.46, 3.15) | 2.46*** (1.62, 3.31) | 1.35** (0.50, 2.19) | 0.54 (−0.30, 1.39) | 0.19 (−0.66, 1.03) |
Average velocity of blood flow (cm/s) | 9.31 (3.50, 15.11) | 4.09*** (2.60, 5.59) | 4.52*** (3.02, 6.01) | 2.45** (0.96, 3.95) | 1.10 (−0.40, 2.59) | 0.30 (−1.19, 1.80) |