概括
警告性心律失常不能可靠地预测心脏病发作患者的初级心室动 (PVF). 心率可能会影响PVF发作,但宫外心跳特征不是确定的指标.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 关键护理医学 关键护理医学
背景情况:
- 初级心室动 (PVF) 是心肌梗塞后的一个关键并发症.
- 对PVF的预测标志物对于及时干预和改善患者结果至关重要.
研究的目的:
- 在急性心肌梗塞患者中,在初级心室动 (PVF) 发生之前调查心律失常的先前事件和特征.
- 评估警告性心律失常对PVF发育的预测价值.
主要方法:
- 在262名急性心肌梗塞患者的心脏电活动的连续磁带记录.
- 抗心律失常疗法被扣留,以观察自然事件.
- 在PVF之前对心室外宫内心跳,心率和合间隔进行分析.
主要成果:
- 在患有和没有发展PVF的患者中,警告性心律失常发生的频率相同.
- 在PVF之前,患者表现出鼻高心率,正常的鼻节律或胸.
- 启动PVF的心室外皮节拍在某些情况下具有较晚的合间隔,以及各种捆绑分支块配置.
结论:
- 警告性心律失常并不是启动抗心律失常治疗以预防PVF的可靠指标.
- 鼻节律中的心率可能与PVF的出现有关.
- 腹腔外拍节拍的合间隔和配置不仅仅是决定其触发PVF的潜力.
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