新生儿青紫型先天性心脏病围术期心律失常的紧急治疗
摘要
青紫型先天性心脏病(简称先心病)是新生儿时期的急危重症,由于右向左分流,血流动力学障碍,患儿多存在严重低氧血症以及电解质紊乱等,早期如未进行干预,约30%左右在新生儿期即夭折,因此心脏手术治疗常需于生后1个月内进行。但由于新生儿心肌收缩力及储备能力相比年长儿及成人弱,不仅手术自身风险大,而且因手术空间小、操作复杂,以及体外循环时间长、电解质紊乱等因素,常合并围术期心律失常,影响其存活及预后。围术期严重的危及生命的心律失常包括两大类:(1)心动过速型(伴有或不伴有房室不同步),因心室率过快,心脏充盈受损使心输出量减少;
出处
《继续医学教育》
2007年第18期20-22,共3页
Continuing Medical Education
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