自动外部除器和在医院心脏骤停后的生存率
Paul S Chan1, Harlan M Krumholz, John A Spertus
1Saint Luke's Mid America Heart Institute, 4401 Wornall Rd, Fifth Floor, Kansas City, MO 64111, USA. pchan@cc-pc.com
JAMA
|November 17, 2010
概括
自动外部除器 (AED) 没有改善住院心脏骤停的存活率. 使用AED与较低的生存率有关,特别是对于不可震动的节奏.
科学领域:
- 心脏病学 心脏病学
- 紧急医疗 紧急医疗
- 医疗保健服务研究 医疗服务研究
背景情况:
- 自动外部除器 (AED) 已被证明可以提高医院外心脏骤停的存活率.
- 对于在医院环境中心脏骤停的患者的AED有效性存在有限的数据.
研究的目的:
- 调查AED使用与医院内心脏骤停的生存结果之间的关联.
- 为了确定AED的部署是否会影响心脏骤停的住院患者的生存率.
主要方法:
- 一项队列研究包括11695名在2000年至2008年期间心脏骤停的住院患者.
- 根据AED使用情况,分析了医院出院的生存率,采用多变量等级回归来控制患者和医院因素.
主要成果:
- 在38.6%的病例中使用了AED;整体存活率到出院为18.1%.
- 在总人口中,使用AED与降低生存率 (16.3%) 相比,与不使用AED (19.3%) 相比,AED的使用与降低生存率有关 (调整后RR,0.85).
- 对于不可震动的节奏,AED使用与较低的生存率相关 (10.4%与15.4%),而对于可震动的节奏 (38.4%与39.8%) 没有发现任何关联.
结论:
- 使用AED与心脏骤停的住院患者的生存率改善无关.
- 研究结果表明,在住院心脏骤停的情况下,AEDs可能不会给患者带来生存益处,无论节律类型如何.
相关概念视频
01:23Cardiopulmonary Resuscitation III: AED Use
Introduction to AEDAn Automated External Defibrillator (AED) is a portable medical device that analyzes the heart's rhythm and, if necessary, delivers an electrical shock to help the heart re-establish an effective rhythm during sudden cardiac arrest (SCA). SCA occurs when the heart suddenly and unexpectedly stops beating, leading to a loss of blood flow to the brain and other vital organs. In such emergencies, time is of the essence, and using an AED, combined with Cardiopulmonary...
01:25Cardiopulmonary Resuscitation IV: Pharmacological Management
Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
01:21Cardiopulmonary Resuscitation I: Adult
Cardiopulmonary resuscitation, or CPR, is a life-saving emergency procedure performed when a person's heart has stopped beating or they are no longer breathing. The foundation of CPR is Basic Life Support (BLS), which focuses on the early recognition of cardiac arrest, the immediate start of high-quality chest compressions, and the timely use of an automated external defibrillator (AED).Assessing Responsiveness and Checking the Carotid PulseWhen approaching an unresponsive person, first ensure...
01:29Cardiomyopathy V: Interprofessional Care
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
01:22Heart Failure VI: Adjunct Therapies
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
01:25Dysrhythmias VI: Management of Dysrhythmias
Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...