Children with difficulties in effectuating venous cannulation, DVC (n = 50) with CO (conventional treatment) or NO (nitrous oxide treatment
| DVC/CO | DVC/NO | p† | |
|---|---|---|---|
| Results are presented as median (range). In the satisfaction score, 5 is most satisfactory, in nurse’s assessment, 1 is best (see Methods). | |||
| *In the time required for cannulation, the time for induction and completion of NO is not included (see Methods). | |||
| †Mann-Whitney test. | |||
| No. of attempts | 4 (2–9) | 2 (2–6) | 0.001 |
| Pain, VAS | 5 (2–10) | 2 (1–4) | <0.001 |
| Time required*, min | 21 (7–95) | 18 (5–57) | 0.005 |
| Satisfaction score, parents 1–5 | 3 (1–4) | 5 (3–5) | <0.001 |
| Satisfaction score, children 1–5 | 2 (1–4) | 5 (4–5) | <0.001 |
| Nurse’s assessment 1–3 | 2 (1–3) | 1 (1) | <0.001 |