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Abstract
【背景】乳幼児気管支喘息(喘息)児で治療に難渋する場合に胃食道逆流症(GERD)が合併することがある.しかし,どのような喘息児でGERDを疑うかやGERD治療がどの程度,喘息に対し有効であるかは明確にされていない.【方法】抗炎症治療を行ってもコントロールができず,既往にGERDを疑われたり指摘されたことがない5歳以下の喘息児で,喘息の増悪因子としてGERDの関与を疑い24時間食道pHモニタリング(pHモニター)を行った27名で,GERD合併頻度とGERD陽性例でのファモチジンの有効性を後方視的に検討した.【結果】18名(66.7%)の児でGERD陽性であり,GERD陽性でファモチジンを使用した15名中12名(80%)で喘息のコントロールが改善した,GERD陽性例のpHモニターは睡眠時よりも覚醒時に逆流回数が有意に多かった.GERD陽性のファモチジン有効例では12名中8名(66.7%)で日中の方が咳・喘鳴をきたしやす<,逆流が起こりやすい時間帯とある程度一致していた.【結語】抗炎症治療を行っても喘息のコントロールができない乳幼児の難治例では増悪因子としての,あるいは鑑別疾患の一つとして積極的にGERDの関与を疑うことが適切である.
Background: In pediatric intractable asthma, there is occasionally an association with GERD (gastroesophageal reflux disease). It is not clear in which cases GERD should be suspected or how effective the GERD therapy is in treating the asthma. Methods: Twenty-seven preschool children (<6 years of age) suffering from recurrent asthma attack in spite of asthma therapy underwent 24-hour esophageal pH monitoring. We examined retrospectively the incidence of GERD and the effectiveness of famotidine in GERD positive patients. Results: 18 of the 27 patients (66.7%) had positive results (GERD positive group). In 12 of the 15 patients (80%) who underwent GERD therapy (famotidine), respiratory symptoms were decreased. In the GERD positive group, the incidence of acid reflux during waking hours was more frequent than during sleeping hours. In 8 of 12 patients (66.7%) in whom famotidine was effective, cough and wheeze often occurred during the daytime and corresponded with the time when acid reflux must commonly occurred. Conclusion: We conclude that children suffering from recurrent asthma attack in spite of asthma therapy must be examined for the presence of GERD.
Journal
- Japanese Journal of Allergology [List of Volumes]
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Japanese Journal of Allergology 57(5), 529-535, 2008-05-20 [Table of Contents]
The Japanese Society of Allergology