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患者男,26岁,因左眼进异物后疼痛、畏光4天于1998年11月就诊。检查:左眼混合充血,角膜中央铁屑嵌入,深达1/2角膜基层,其周围有铁锈浸蚀。处理:表麻下剔取角膜异物。遂用1%丁卡因点眼1滴,2分钟后再点1滴,又过约1分钟患者突然感到心慌,继而出现面色苍白,昏倒在地,脉搏消失,血压测不出。立即给予肾上腺素1mg皮下注射,地塞米松10mg静脉注射,平衡液500ml静脉滴注约10分钟后,患者面色渐
Male patient, 26 years old, because of pain in the left eye into the foreign body, photophobia 4 days in November 1998 treatment. Check: mixed left eye congestion, central corneal embedded iron filings, as deep as 1/2 of the corneal base, surrounded by rust erosion. Treatment: Table numbness removed corneal foreign bodies. Then use 1% tetracaine 1 eye drops, 2 minutes and then 1 drop, and about 1 minute patients suddenly felt palpitation, then pale, collapsed to the ground, the pulse disappeared, blood pressure can not be measured. Immediately given epinephrine 1mg subcutaneous injection of dexamethasone 10mg intravenously, 500ml of equilibration solution intravenous infusion of about 10 minutes, the patient gradually