Education And Debate

Lesson of the Week: Acquired haemophilia: an important but often unrecognised cause of bleeding in elderly people

BMJ 1995; 311 doi: https://doi.org/10.1136/bmj.311.7006.679 (Published 09 September 1995) Cite this as: BMJ 1995;311:679
  1. E N Evans, medical registrara,
  2. R V Majer, consultant haematologista
  1. a Prince Philip Hospital, Bryngwynmawr, Dafen, Llanelli SA14 8QF
  1. Correspondence to: Dr Evans.
  • Accepted 19 October 1994

Acquired haemophilia is a rare condition caused by the spontaneous acquisition of antibodies to clotting factor VIII. Although the reported incidence is 1 in 1000000,1 the diagnosis may be missed and the condition may in fact be more common. We present two cases and discuss the reasons for the different outcomes.

Case 1

A 79 year old man presented with epigastric pain and melaena. He had a history of melaena from a bleeding duodenal ulcer, diagnosed on barium meal examination 20 years previously, and a hiatus hernia, diagnosed on endoscopy two years previously. On admission his blood haemoglobin concentration was 96 g/l and he required transfusion. Endoscopy showed superficial ulceration in a deformed duodenal cap, hiatus hernia, and mild oesophagitis.

Despite treatment with ranitidine he had two further episodes of serious gastrointestinal bleeding. During a third episode his haemoglobin concentration fell to 51 g/l and he developed a widespread ecchymotic rash. A clotting screen showed a prolonged activated partial thromboplastin time of 72.9 (normal range 26-36) and a …

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