Contrast group received dexamethasone and aminophylline by I.V.while treatment group received Pulmicort Respulses and Ventolin.

• 对照组静脉滴注地塞米松、氨茶碱,治疗组氧气驱动雾化吸入普米克令舒、万托林,观察比较两组的疗效和不良反应。