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冠状动脉球囊扩张术
这种治疗创伤小，用于治疗阻塞性冠状动脉疾病。在血管狭窄处通过球囊扩张，用机械的方式挤压斑块，扩张血管，增大血管的直径，增加有效血流量，缓解胸痛，降低急性心肌梗死的风险。
术前 6 小时须禁食禁水。使用抗凝血药、利尿药和胰岛素的病人须向医生咨询能否使用。
病人清醒，局部麻醉。球囊导管从一侧大腿上方的股动脉插入直至阻塞的冠状动脉,然后将导管末端的球囊充气膨胀，把受阻塞的冠状动脉扩张，使血液能正常通过血管到达心脏肌肉。
一般医生也会在阻塞的冠状动脉内放置支架保持血管畅通，这种支架是永久性的。手术全程 60-120 分钟。
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