中美学者研究称,原因不明脑卒中患者,置入式心电监测器可帮助发现房颤

2019-11-19 循环L 中国循环杂志

不明原因脑卒中在人群中并不少见。近期一项由美国明尼苏达大学退役军人中心医院李剑明、清华大学临床医院李延辉等进行的研究表明,在普通心电图、Holter 等常规检测手段未能检查房颤的原因不明脑卒中患者中,新一代插入式心电监测器对房颤的检出率为21.7%。即新一代入式心电监测器安全且能有效识别房颤,但识别房颤的准确性有待提高。研究者指出,其在原因不明性脑卒中患者中的应用价值有待于更多的临床研究来证实。这

不明原因脑卒中在人群中并不少见。

近期一项由美国明尼苏达大学退役军人中心医院李剑明、清华大学临床医院李延辉等进行的研究表明,在普通心电图、Holter 等常规检测手段未能检查房颤的原因不明脑卒中患者中,新一代插入式心电监测器对房颤的检出率为21.7%。

即新一代入式心电监测器安全且能有效识别房颤,但识别房颤的准确性有待提高。

研究者指出,其在原因不明性脑卒中患者中的应用价值有待于更多的临床研究来证实。

这项研究于2014年9月11日至2017年9月10日在美国明尼苏达大学退役军人中心医院,共连续入选了23例成功植入新一代入式心电监测器的原因不明性脑卒中患者。

结果显示,ICM 共检出房颤事件293次,经人工校对核实的房颤事件62次,入式心电监测器对房颤的识别正确率为 21.2%。

中位随访 369天期间,随访 1 年、1.5 年、2年、2.5 年时的累积房颤检出率分别为 11.2%、19.2%、35.4% 及 56.2%。

所有患者植入插入式心电监测器后均无明显并发症。

随访期间,未出现电池耗竭,4 例患者的插入式心电监测器被取出,其中 1 例因可疑的局部疼痛被外院取出,1 例因检测到长时间心脏停搏并植入起搏器而取出插入式心电监测器,其他 2 例因检测到房颤并且不再需要继续监测心律失常事件而取出。

研究者介绍说,对房颤的识别正确率依赖于房颤的发生率、房颤发作的时间长短和设定的机器房颤识别的敏感性。插入式心电监测器在既往 R-R 间期识别算法的基础上增加基于 P波积分的房颤算法,可以减少房颤的不恰当识别。

该研究纳入的23例患者,平均年龄68岁,男性22例。植入的新一代插入式心电监测器体积小,仅 7 mm×45 mm×4 mm,重2.5 g,使用寿命可长达3年,1.5 或 3.0 Tesla的MRI 兼容。

来源:李延辉,Venkatakrishna Tholakanahalli,Selcuk Adabag,等. 新一代插入式心电监测器对原因不明性脑卒中患者中心房颤动的检出研究. 中国循环杂志, 2019, 34: 171-175.

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    2019-11-19 健健

    卒中虽然是临床上常见病,溶栓,取栓等血管内治疗也很成熟,但是仍然有很多未知问题有待认知!

    0

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    2019-11-19 心介

    房颤,临床上碰到很多哦

    0

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