泉州白癜风医院 http://pf.39.net/bdfyy/bdfal/index.htmlQuestion问题:
CausesofRVfailureduringanacuteMIareinsufficientmyocardialcontractility,excessivepreload,andexcessiveafterload.Shouldyourthresholdtoelectrocardiovertnew-onsetdysrhythmiasbehigherorlowerwithRVfailure?
急性心肌梗塞时导致右室(RV)衰竭的原因有心机收缩无力,前负荷过高,和后负荷过高。此时对新发生心律失常进行电转复的要求是高还是低?
Answer答案:
Electrocardioversionofnew-onsetdysrhythmiasshouldbestronglyconsideredinRVfailure.Adequatefillingtimeandatrialcontractionsareneededtomaintaincardiacoutput,sodysrhythmiasarenotwelltolerated.
充足充盈时间和心房收缩对维持心脏输出量是必要的,此时(RV心衰)对心律失常耐受很差。因此RV心衰时需要更积极对新发生心律失常进行电转复。
参考文献:
AmJEM.Vol.37/p>
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