JAHA:医学去势对前列腺癌患者恶性心律失常的影响

2021-02-19 MedSci原创 MedSci原创

医学去势延长了大多数前列腺癌患者的QT/QTc间隔,即使在治疗前没有QT间期延长风险的患者,也可能导致TdP/VFs。QTc间隔时间较治疗前增加超过50 ms可能是发生TdP/VF的预测因素。

医学去势、促性腺激素释放激素激动剂和抗雄激素已广泛应用于前列腺癌的治疗。类固醇性激素影响心脏离子通道的功能。然而,很少有研究评估医学去势对心律失常的影响。

近日,血管疾病领域权威杂志JAHA上发表了一篇研究文章,这项研究纳入了149例前列腺癌患者,他们使用促性腺激素释放激素联合/不联合抗雄激素治疗前列腺癌。研究人员记录了受试者治疗过程中心电图的变化及其与恶性心律失常之间的关系。

与基线QT间期和校正QT间期相比,治疗期间QT间期(394±32 to 406±39 ms [P<0.001])与校正QT间期(QTc, 416±27 to 439±31 ms [P<0.001])有所延长。119例(79.9%)患者治疗期间QTc间隔较基线延长。在2例(1.3%)无结构性心脏病的患者中,开始治疗后发生扭转(TdP)和心室颤动(VF)超过6个月。TdP/VF患者的QTc间隔较治疗前增加超过了80 ms。然而,在无TdP/VF的患者中,QTc间隔时间较治疗前增加超过50ms的患病率为11%,而仅4例(3%)患者QTc间隔时间较治疗前增加超过80ms。

由此可见,医学去势延长了大多数前列腺癌患者的QT/QTc间隔,即使在治疗前没有QT间期延长风险的患者,也可能导致TdP/VFs。QTc间隔时间较治疗前增加超过50 ms可能是发生TdP/VF的预测因素。为预防恶性心律失常的发生,应在医学去势的全过程中重视QTc间隔的监测。

原始出处:

Kanae Hasegawa.et al.Impact of Medical Castration on Malignant Arrhythmias in Patients With Prostate Cancer.J AM HEART ASSOC.2021.https://www.ahajournals.org/doi/10.1161/JAHA.120.017267

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    2021-02-20 zhaohui6731
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    2021-02-19 carrotlyl

    涨知识

    0

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    2021-02-19 qingzipost

    值得学习!

    0

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    2021-02-19 misszhang

    前列腺癌相关研究,学习了,谢谢梅斯

    0

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