AI Article Synopsis

  • A study analyzed 38 mite-sensitive adult bronchial asthmatics undergoing rush immunotherapy (RI) and found that most patients reached a maintenance dose of over 0.10 ml within 10 days.
  • The likelihood of systemic reactions increased with doses above 0.15 ml, particularly in patients with severe skin reactions and airway irritation before asthma symptoms.
  • The research concluded that RI is best suited for patients with an FEV1% of 70% or higher, with 0.10 ml being the optimal maintenance dose, and cautions against increasing dosage in sensitive individuals.

Article Abstract

In order to establish guidelines for the optimal use of rush immunotherapy (RI) in mite-sensitive adult bronchial asthmatics, we clinically analyzed 38 cases treated with RI. In all cases, it was possible to reach a maintenance dose greater than 0.10 ml of 1/10 solution of house dust (HD) within 10 days. Most of the systemic reactions occurred after doses greater than 0.15 ml of 1/10 solution. The patients who showed the maximum size of skin reaction > or = 8 cm were susceptible to systemic reactions. Prior to the occurrence of asthma, most cases complained of some prodrome of airway irritation. The clinical efficacy of RI was significantly lower in patients whose FEV1% was < 70%, and no difference was observed between patients whose maintenance dose was 0.10 ml and those whose maintenance dose was greater than 0.20 ml. These results suggest: 1) RI should be performed on patients whose FEV1% is > or = 70%, 2) 0.10 ml of 1/10 solution is an optimal dose, 3) when a local skin reaction is > or = 8 cm in diameter and/or a prodrome of airway irritation occurs, one should be careful when increasing the dosage.

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