Methods: Before surgery of chalazion, we performed the local anesthesia by deep infiltration injection or traditional method of injection.
方法：应用一次性深层浸润法和常规法对霰粒肿手术前进行局部麻醉。
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Results The case of PDA underwent ligation under normothermic anesthesia and the other 7 cases were operated upon under moderate or deep hypothermic cardiopulmonary bypass.