Table 4 Demographic characteristics of patients enrolled in the prospective randomised trial (n = 172)
Parameters | Cephalic | Great saphenous | Dorsal hand |
|---|---|---|---|
(n = 65) | (n = 56) | (n = 51) | |
Age, months | 20 (9-31) | 21 (8-34) | 24 (13-38) |
Sex, male | 41 | 34 | 38 |
Height, cm | 78 (68-87) | 77 (66-88) | 81 (71-91) |
Weight, kg | 11 (8-13) | 10 (8-13) | 10 (8-13) |
Venous depth, mm | 3.6 (2.8-4.4)a,b | 2.4 (1.9-2.8)b | 1.6 (1.1-2.5) |
Diameter of target vein, mm | 1.8 (1.5-2.1)a,b | 1.5 (1.3-1.7) | 1.5 (1.2-1.7) |
Systolic blood pressure, mm Hg | 90 (84-100) | 95 (83-102) | 87 (82-96) |
Diastolic blood pressure, mm Hg | 46 (40-54) | 48 (42-55) | 43 (40-54) |
ASA-PS | |||
PS 1, n = 94 | 37 | 30 | 27 |
PS 2, n = 23 | 9 | 8 | 6 |
PS 3, n = 52 | 18 | 17 | 17 |
PS 4, n = 3 | 1 | 1 | 1 |
PS 5, n = 0 | 0 | 0 | 0 |
Number of trials, times | 1 (1-1) | 1 (1-1) | 1 (1-1) |
Success rates, % | 95a,b | 75 | 69 |