Warin R P
Department of Dermatology, Bristol Royal Infirmary, U.K.
Br J Dermatol. 1989 Aug;121(2):225-8. doi: 10.1111/j.1365-2133.1989.tb01802.x.
Repeated pressure tests at regular intervals were carried out on 48 patients with delayed pressure urticaria (DPU). Patients showed a considerable variation in response with periods of positive testing ranging from a few days to months or years. All the DPU patients had had chronic urticaria and/or angio-oedema although sometimes minor and occasional. Pressure tests were also carried out at regular intervals on seven patients with chronic urticaria who had weals at pressure sites but no history of pressure-induced weals (Köbner weals). These weals coincided with positive pressure tests and it seems likely that they all had DPU but only for a short time. Delayed dermographism was studied in eight patients with DPU. There was a good correlation in time and degree between positive pressure tests and delayed dermographism, confirming that delayed dermographism is in fact DPU provoked by a slightly different mode of pressure.
对48例迟发性压力性荨麻疹（DPU）患者定期进行重复压力测试。患者的反应差异很大，阳性测试期从几天到数月或数年不等。所有DPU患者都有慢性荨麻疹和/或血管性水肿，尽管有时症状轻微且偶尔发作。对7例慢性荨麻疹患者也定期进行压力测试，这些患者在压力部位出现风团，但无压力性风团病史（科布纳风团）。这些风团与阳性压力测试结果一致，似乎他们都患有DPU，但仅持续了很短时间。对8例DPU患者进行了迟发性皮肤划痕症研究。阳性压力测试与迟发性皮肤划痕症在时间和程度上有良好的相关性，证实迟发性皮肤划痕症实际上是由略有不同的压力模式引发的DPU。
