Total number of patients (N = 128)) | Cryospray group (n = 64) | Placebo group (n = 64) | P value |
---|---|---|---|
Pain or discomfort with application of the spray (cryo- or placebo) but before vein puncture. Numeric Rating Scale (zero no pain and 10 very painful) | 0 (0-2.5) | 0 (0–0) | < 0.005 |
Pain from the puncture site (Numeric Rating Scale) during vein puncture | 1 (0–3) | 3 (2–5) | < 0.005 |
Would the patient have the same spray in case of canulation again in the future | |||
Yes No | 57 (89%) 7 (11%) | 34 (53%) 30 (47%) | < 0.005 |