title: Effect of high-dose intravenous immunoglobulin in delayed pressure urticaria.
abstract: BACKGROUND
  Delayed pressure urticaria (DPU) is difficult to treat. High-dose intravenous immunoglobulin (IVIG) has been found to be effective in treating patients with autoimmune chronic urticaria.
  
  
  OBJECTIVE
  To report the effect of IVIG on eight patients with severe unremitting DPU.
  
  
  METHODS
  IVIG was administered at a dose of 2 g kg-1 over 2-3 days on an in-patient basis. The response to treatment was assessed subjectively and recorded as remission, improved or unchanged. An autologous serum skin test (ASST) was performed in seven patients.
  
  
  RESULTS
  Three of eight patients achieved remission; two after one infusion and one after three infusions. Two patients improved. Three patients remained unchanged; of these, two declined further treatment after two infusions, and one failed to improve after six infusions at monthly intervals. Four of seven patients had positive ASST; three responded to IVIG. Two developed delayed positive ASST; both responded to IVIG. Of three patients with negative ASST, two responded.
  
  
  CONCLUSIONS
  IVIG induced remission or improved symptoms in five of eight patients with DPU with severe unremitting disease who had failed to respond to other therapies or were controlled only with systemic corticosteroids. Those who responded did so with three or fewer infusions. ASST is not a reliable predictor of response to IVIG.
authors: Department of Dermatology, Monklands Hospital, Airdrie, Lanarkshire, ML6 0JS, U.K. gmitali@eggconnect.net
authors: G
authors: G
authors: Dawn
authors: M
authors: M
authors: Urcelay
authors: A
authors: A
authors: Ah-Weng
authors: S M
authors: SM
authors: O'Neill
authors: W S
authors: WS
authors: Douglas
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016756:Immunoglobulins, Intravenous / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D011312:Pressure / Q000009:adverse effects; D012882:Skin Tests / Q000379:methods; D013997:Time Factors; D016896:Treatment Outcome; D014581:Urticaria / Q000628:therapy*
chemical_list: D016756:Immunoglobulins, Intravenous