软X线对头皮银屑病损害的影响：一项双盲双侧试验。
The effect of grenz rays on psoriasis lesions of the scalp: a double blind bilateral trial.
作者信息
Johannesson A, Lindelöf B
出版信息
Photodermatol. 1985 Dec;2(6):388-91.
Sixteen patients with symmetrical psoriasis lesions of the scalp were treated with grenz rays. In a double blind fashion, one side of the scalp was irradiated with 4 Gy of grenz rays applied on 6 occasions at intervals of 1 week, and the other side of the scalp was given placebo treatment. The patients were seen before and after X-ray therapy. A significantly (P less than 0.0001) better therapeutic result was recorded on the side of the scalp which had received active grenz ray therapy. In 14 of the 16 patients there was complete healing on the grenz ray-treated side after 6 wk of treatment. Nine patients were still free of lesions of the scalp 3 months after the start of the grenz ray therapy.
16例头皮有对称性银屑病损害的患者接受了格氏X线治疗。采用双盲方式，头皮一侧接受6次格氏X线照射，每次4 Gy，间隔1周，另一侧头皮给予安慰剂治疗。在X线治疗前后对患者进行观察。接受主动格氏X线治疗的头皮一侧记录到显著更好的治疗效果（P小于0.0001）。16例患者中有14例在治疗6周后，接受格氏X线治疗的一侧完全愈合。格氏X线治疗开始3个月后，9例患者头皮仍无损害。
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