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皮质类固醇对慢性支气管炎由于炎症和支气管收缩所致的慢性气流受限可收到减轻症状的预期效果但由肺气肿引起者则无效。因此,皮质类固醇对于大多数患者较少应用或不应用,而对气流受限的患者将会部分改善。在急性气流受限加剧时,由于炎症和支气管收缩,可暂时增加其严重性,通过应用皮质类固醇可使这种情况得到缓解。上述治疗措施与临床实践是一致的。最近2个安慰剂作对照的资料报道了持续气流受限患者。对于应用2周为1疗程皮质类固醇的有效率分别为17％和
Corticosteroids for Chronic Bronchitis Limited chronic airflow limitation due to inflammation and bronchoconstriction may receive the expected effect of alleviating the symptoms but is not effective due to emphysema. Therefore, corticosteroids for the majority of patients with less application or not, but for patients with limited airflow will be partially improved. When acute airflow limitation is exacerbated, the severity can be temporarily increased due to inflammation and bronchoconstriction, which can be alleviated by the application of corticosteroids. The above treatment is consistent with clinical practice. The latest two placebo-controlled data reported patients with persistent airflow restriction. For 2 weeks for the application of 1 course of corticosteroids were 17% and effective rates