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患者男性,73岁,高血压性心脏病,冠心病,病窦。附图Ⅱ导联示窦性P间距1.13~1.30s,约合房率46~53bpm,R—R间距除R<sub>2-3</sub>(1.42s)和R<sub>9-10</sub>(1.46s之外,余皆为1.16s,约合室率51bpm,P与R之间呈现等律性干扰性房室脱节状态。另外,当R<sub>2</sub>—P和R<sub>9</sub>—P最长分别达到0.18s和0.16s时,其