【摘 要】
：
目的：探讨体外循环心脏手术患者围术期大量出血的危险因素。方法：对84例体外循环心脏手术围术期大量出血患者（观察组）临床资料进行回顾性分析，分析方法为查阅本次就诊相关病历资料
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目的：探讨体外循环心脏手术患者围术期大量出血的危险因素。方法：对84例体外循环心脏手术围术期大量出血患者（观察组）临床资料进行回顾性分析，分析方法为查阅本次就诊相关病历资料、询问当事接诊医护人员、咨询患者本人及家属等。并选择同期行体外循环心脏手术围术期未出血的84例患者作为对照组，将所得数据经专业分析（统计学）后获得结论。结果：导致其围术期大量出血的危险因素为高龄（≥60岁）、具有心脏手术史、体外循环时间≥120 min、术前凝血酶原时间≥17 s、术前心功能较差（Ⅲ~Ⅳ级）、合并高血压等，两组比较差异有
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