IABP治疗重度主动脉瓣狭窄瓣膜置换术后低心排血量综合征

Treatment of IABP on the patients with low cardiac output syndrome after valve replacement in severe aortic stenosis

目的 探讨主动脉内球囊反搏（IABP）治疗重度主动脉瓣狭窄（AS）瓣膜置换术后低心排血量综合征（LCOS）的疗效.方法 2007年1月至2013年1月,沈阳军区总医院心血管外科对20例重度AS患者因瓣膜置换术后出现LCOS行IABP辅助治疗.比较IABP置入前后血流动力学、尿量变化及多巴胺用量情况.结果 全组无围术期死亡,均治愈出院.应用IABP后血流动力学指标明显改善（P〈0.05或P〈0.01）,尿量明显增加（P〈0.01）,多巴胺用量明显减少（P〈0.01）.结论 IABP治疗重度主动脉瓣狭窄瓣膜置换术后LCOS有效.

Objective To summarize the results of intra-aortic balloon pump（IABP） on the patients with low cardiac output syndrome （LCOS） after valve replacement in severe aortic stenosis （AS）. Methods LCOS occurred in twenty patients with severe AS after aortic valve replacement and they were given IABP therapy from January 2007 to January 2013 in general hospital of Shenyang military command. The hemodynamics, urine volume and dosage of dopamine were compared before and after the support of IABP. Results No early death occurred af- ter operation and all were cured. After the support of IABP, hemodynamic index improved significantly （P〈0.05）, urine volume increased greatly（P〈0.01 ）, and the dopamine dosage decreased significantly（P〈0.01 ）. Conclusion IABP can be effective in improving the outcome of postoperative LCOS in patients with severe AS.