激活恢复间隔作为电心图复极化指数,用于检测多克索鲁比诱导的心脏毒性
Toshio Kinoshita1, Naoki Onda2, Ruiko Ohno1
1Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Sakura Medical Center, Chiba, Japan.
Journal of cardiology
|July 28, 2023
概括
早期检测与癌症治疗相关的心脏功能障碍 (CTRCD) 是至关重要的. 在多克索鲁比 (DOX) 化疗后,激活恢复间隔 (ARIc) 的延长可以预测CTRCD,并实现早期心脏保护.
科学领域:
- 心脏病学 心脏病学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 癌症治疗相关的心脏功能障碍 (CTRCD) 影响患者的预后.
- 早期发现和治疗CTRCD对于改善结果至关重要.
- 在CTRCD中,心电复极化与左心室功能之间的关系需要进一步阐明.
研究的目的:
- 调查多克索鲁比 (DOX) 诱导的CTRCD中心电复极化指数与左心室功能障碍之间的关联.
- 为了确定早期检测CTRCD的潜在预测因素.
主要方法:
- 对471名接受DOX化疗的淋巴瘤患者进行了回顾性队列研究.
- 在17名CTRCD患者和68名非CTRCD对照中,在化疗前后对12导电心电图和回声心电图进行分析.
- 评估QT,JT,T峰到T结束间隔 (Tp-e) 和心率校正激活恢复间隔 (ARIc) 在领先V5.
主要成果:
- 在化疗后的两组中,QTc 间隔延长.
- ARIc延长是CTRCD组的特征,与左心室喷射率负相关 (r = -0.56,p < 0.001).
- 18毫秒的ARIc增加预测了75%的灵敏度和79%的特异性 (AUC = 0.76) 的CTRCD.
结论:
- ARIc延长可能作为晚发,慢性DOX诱导的CTRCD的早期检测标志物.
- 这一发现可以促进癌症患者及时进行心脏保护干预.
- 需要进一步的研究来验证ARIc作为CTRCD的预测生物标志物.
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