慢性冠状动脉心脏病患者的突然心脏死亡
1Clinical Electrophysiology Laboratory, Hospital of the University of Pennsylvania, Philadelphia 19104.
Circulation
|January 1, 1992
概括
突发心脏死亡 (SCD) 每年影响30万至40万人. 通过电生理学研究识别可诱导的腹腔动心减速是管理SCD复发风险的关键.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 突发心脏病死亡研究研究
背景情况:
- 突发心脏病死亡 (SCD) 每年导致30万至40万人死亡,幸存者在2年内复发率为40%.
- 冠状动脉疾病,特别是左心室功能障碍,是主要的危险因素,尽管SCD可以是最初的表现.
- 腹腔动脉短心是SCD最常见的心律失常原因,通常与受损腹腔的传导速度减慢有关.
研究的目的:
- 调查心脏突然死亡 (SCD) 和其复发的预测因素和管理策略.
- 评估电生理学研究在识别患有SCD风险的患者中的作用.
- 评估药物和手术干预措施在预防SCD复发方面的有效性.
主要方法:
- 在SCD患者的电生理学研究中分析心内图谱.
- 评估左心室功能和信号平均心电图作为预测器.
- 诱导性腹腔动脉高心率的评估和患者对抗节律障碍药物或干预措施的反应.
主要成果:
- 左心室功能不佳是SCD复发的更好的预测因素,而不是复杂的心室外皮.
- 电生理学研究显示,心室损伤的SCD患者的导电减缓.
- 非诱导性腹腔动心的药理学染改善了预后;持续的诱导性或非诱导性表明复发风险很高.
结论:
- 电生理学研究对于突然心脏死亡 (SCD) 的风险分层至关重要.
- 患有可诱导心室低心率,但因药物治疗而变得不可诱导心率的患者有良好的预后.
- 高风险患者可能受益于心下切除或植入式除器,以防止SCD复发.
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