Arvidsson S B, Ekroth R H, Hansby A M, Lindholm A H, William-Olsson G
Acta Anaesthesiol Scand. 1984 Apr;28(2):209-10. doi: 10.1111/j.1399-6576.1984.tb02043.x.
Discomfort or frank pain at venipuncture may be a reason for abstaining from giving blood. In an attempt to offer a painless alternative, a method for iontophoretic application of local anaesthetics was developed. Its effectiveness in producing anaesthesia for venipuncture was tested in a double-blind trial in 47 blood donors. A positive result was obtained in 89%, as against 28% in the placebo group.
静脉穿刺时的不适或剧痛可能是献血者拒绝献血的一个原因。为了提供一种无痛的替代方法，人们开发了一种离子电渗法局部麻醉剂给药方法。在47名献血者中进行了一项双盲试验，测试了其在静脉穿刺麻醉方面的有效性。89%的受试者获得了阳性结果，而安慰剂组为28%。
