Toxic epidermal necrolysis (TEN) or Lyell's syndrome is a rare fulminating skin disease notorious for its rapidly progressive course and high mortality rate. TEN is characterized by the sudden onset of epithelial necrosis of skin with frequently associated involvement of the gastrointestinal, genitourinary tract and bronchopulmonary linings. We describe the clinical course of five patients with severe drug-induced TEN, treated with PE. The suspected drugs were carbamazepine in one patient, paracetamol in one, a combination of paracetamol and mefenamic acid in one, allopurinol in one and ciprofloxacin in one. Three had a skin involvement affecting almost the entire surface of the body. In addition to the skin lesions, mouth, esophagus and lungs were also involved. Steroids proved ineffective. PE was carried out because of the rapid deterioration of the clinical picture. The mean number of PE sessions was 3.22 (range 1-5). Complete remission of the syndrome was achieved in four patients. One patient died due to septic shock. As so far there is no treatment of proven value for this condition, controlled trials should be set up in order to assess the value of PE in TEN.
Peak expiratory flow rate (PEFR) and standing height (Ht) were measured in 522 healthy Greek children aged 7-16 years. The regression equation of PEFR on height in centimetres was PEFR = 5.34 Ht--380.8. This demonstrated markedly higher values for PEFR in Greek children compared to previously published data from other countries. A sample of 339 British children was examined similarly. The regression equation of PEFR on height in centimetres was PEFR = 5.64 Ht--472.5. This was similar to previously published data. No cause for this discrepancy was found after close examination of population sampling, measurement error or calibration error in the Greek study. It is therefore concluded that Greek children appear to have an unexpectedly high PEFR for height.
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