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Advances in Extracorporeal Membrane Oxygenation - Volume 3最新文献

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ECMO Weaning Strategies to Optimize Outcomes ECMO脱机策略优化预后
Pub Date : 2019-12-04 DOI: 10.5772/intechopen.85614
J. S. Enciso, K. Hong
Survival to discharge in patients presenting with cardiogenic shock who are managed using extracorporeal membrane oxygenation (ECMO) remains low at ~50%. This speaks to the acuity and severity of individuals being placed on ECMO, as well as the time dependent risk for complications associated with this therapy. Although some patients are able to be weaned from ECMO to either recovery, left ventricular assist device or heart transplantation, other individuals do not survive after device removal, suggesting that current protocols may not be identifying individuals with enough intrinsic cardiac recovery to maintain adequate end-organ perfusion. The decision to wean an individual from ECMO is complex and entails several factors that are dynamic and evolving daily while on full circulatory support. Objective clinical, hemodynamic and biological markers are needed to be controlled prior to trialing device weans but many times the decision relies on clinical experience and intuition. The purpose of this chapter will be to: (1) outline the survival and risks associated with ECMO which encourages early weaning trials and (2) identify patient factors related to either successful weaning or early referral for durable mechanical support or transplant.
采用体外膜氧合(ECMO)治疗的心源性休克患者的出院生存率仍然很低,约为50%。这说明了接受ECMO的个体的敏锐度和严重程度,以及与该治疗相关的并发症的时间依赖性风险。尽管一些患者能够脱离ECMO进行恢复、左心室辅助装置或心脏移植,但其他患者在移除装置后无法存活,这表明目前的方案可能无法识别具有足够内在心脏恢复以维持足够的终末器官灌注的个体。决定一个人从ECMO中断奶是复杂的,需要几个因素,这些因素是动态的,并且在完全循环支持下每天都在变化。在试验器械之前,需要控制客观的临床、血液动力学和生物学标志物,但很多时候决定依赖于临床经验和直觉。本章的目的是:(1)概述与ECMO相关的生存和风险,鼓励早期脱机试验;(2)确定与成功脱机或早期转诊持久机械支持或移植相关的患者因素。
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引用次数: 1
Introductory Chapter: ECMO – Rapidly Evolving Technology, Expanding Indications, and Growing Challenges 导论章:ECMO -快速发展的技术,扩大适应症和日益增长的挑战
Pub Date : 2019-12-04 DOI: 10.5772/intechopen.89475
M. Firstenberg, J. Hanna
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引用次数: 0
Finding a Bridge to Somewhere: An Ethical Framework for Veno-Arterial Extracorporeal Membrane Oxygenation Decisions 寻找通往某处的桥梁:静脉-动脉体外膜氧合决策的伦理框架
Pub Date : 2019-10-07 DOI: 10.5772/intechopen.85702
J. Aultman, M. Firstenberg
Extracorporeal membrane oxygenation (ECMO) is an established therapy for the management of acute cardiopulmonary failure. A substantial concern when considering ECMO therapy is whether the patient will recover enough function to be weaned from support and survive to discharge. The concept of “a bridge to nowhere” is where a patient is supported on a therapy for which there is no hope for recovery and would, by definition, immediately die if support is discontinued—a somewhat unique concept in clinical medicine, but often considered when considering short-term mechanical support for acute heart and/or lung failure. Much like initiating mechanical ventilator support in patients who have no chance of meaningful recovery, there are concerns about embarking on or continuing with ECMO support in patients in whom recovery is unlikely. The purpose of this chapter is to review the ethical foundation and principles to support the clinical decision-making process when there are concerns regarding the initiation, continuation, or withdrawal of this highly invasive, resource-intensive life-support technology. Specific attention will be given to well-established principles of the ethical application of advanced life support and how to appropriately limit offering or continuing therapies for which meaningful outcomes are unlikely or further support is considered futile.
体外膜氧合(ECMO)是一种成熟的治疗急性心肺衰竭的方法。在考虑ECMO治疗时,一个重要的问题是患者是否能恢复足够的功能以脱离支持并存活到出院。“无路之桥”的概念是指病人接受一种没有康复希望的治疗,根据定义,如果停止支持,病人将立即死亡——这在临床医学中是一个有点独特的概念,但在考虑急性心脏和/或肺衰竭的短期机械支持时经常被考虑。就像在没有机会有意义恢复的患者中启动机械呼吸机支持一样,在不太可能恢复的患者中开始或继续使用ECMO支持也令人担忧。本章的目的是回顾伦理基础和原则,以支持临床决策过程,当有关于启动,继续,或退出这种高度侵入性的,资源密集型的生命维持技术的关注。将特别关注先进生命支持的既定伦理应用原则,以及如何适当地限制提供或继续治疗,这些治疗不太可能产生有意义的结果或进一步的支持被认为是徒劳的。
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引用次数: 0
Anticoagulation in Pediatric Extracorporeal Membrane Oxygenation 儿童体外膜氧合抗凝
Pub Date : 2019-08-22 DOI: 10.5772/INTECHOPEN.85104
J. Weller, Lakshmi Raman, A. Zia, A. McMichael
Anticoagulation during extracorporeal membrane oxygenation (ECMO) is necessary to prevent catastrophic circuit clotting, but significant morbidity and mortality continue to be attributed to hemorrhagic and thrombotic complications. Due to the inflammatory response from the extracorporeal circuit and developmental hemostasis, anticoagulation can be challenging particularly for pediatric patients. Unfractionated heparin (UFH) is the gold standard anticoagulant used in ECMO, but there is an expanding area of research evaluating other anticoagulants, such as direct thrombin inhibitors. This chapter provides an overview of anticoagulant options for pediatric patients on ECMO as well as describes the various tests used to monitor and titrate anticoagulation.
体外膜氧合(ECMO)期间抗凝对于防止灾难性循环凝血是必要的,但显著的发病率和死亡率仍然归因于出血和血栓并发症。由于体外循环的炎症反应和发育性止血,抗凝治疗尤其对儿科患者具有挑战性。未分离肝素(UFH)是ECMO中使用的金标准抗凝剂,但评估其他抗凝剂(如直接凝血酶抑制剂)的研究领域正在扩大。本章概述了ECMO患儿的抗凝选择,并描述了用于监测和滴定抗凝的各种测试。
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引用次数: 0
Nursing Implications in the ECMO Patient ECMO患者的护理意义
Pub Date : 2019-06-12 DOI: 10.5772/INTECHOPEN.85982
A. Botsch, Elizabeth Protain, Amanda R. Smith, R. Szilagyi
Effective care and positive outcomes of the extracorporeal membrane oxygenation (ECMO) patient necessitate optimal interdisciplinary management from the healthcare team, including expert care from specially trained registered nurses (RNs). It is incumbent upon the RN caring for the ECMO patient to excel in both time management and assessment skills, as this population often demands care delivery at the pinnacle of intensive care unit (ICU) acuity. Astute and nuanced monitoring of neurological status, bleeding risk with potential (often massive) transfusions, poor hemodynamics, and integrity of the ECMO pump itself are only the few specialized areas of focus that must share priority with traditional nursing considerations involving the critically ill, such as prevention of pressure injuries and bloodstream infections. These high-intensity medical foci must be balanced with ethical considerations, as the ultimate goal of returning the patient to their normal life is not always possible. These demands highlight the dynamic proficiency of the RN caring for the ECMO patient. The following chapter will highlight the importance of specialized nursing care in the critically ill patient supported with ECMO.
体外膜氧合(ECMO)患者的有效护理和积极结果需要医疗团队的最佳跨学科管理,包括经过专门培训的注册护士(RNs)的专家护理。护理ECMO患者的注册护士有责任在时间管理和评估技能方面都表现出色,因为这一人群通常要求在重症监护病房(ICU)的尖锐性下提供护理。对神经系统状态、潜在(通常是大量)输血带来的出血风险、血流动力学差以及ECMO泵本身的完整性的敏锐和细致的监测,只是少数几个必须与涉及危重患者的传统护理考虑(如预防压力损伤和血流感染)共同优先考虑的专业领域。这些高强度的医疗焦点必须与伦理考虑相平衡,因为使患者恢复正常生活的最终目标并不总是可能的。这些要求强调了护理ECMO患者的注册护士的动态熟练程度。下一章将强调专科护理在重症患者支持ECMO的重要性。
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引用次数: 4
Extracorporeal Cardiopulmonary Resuscitation 体外心肺复苏
Pub Date : 2019-06-05 DOI: 10.5772/INTECHOPEN.83658
Abdelaziz Farhat, C. Bowens, R. Thiagarajan, Lakshmi Raman
ECMO, or extracorporeal membrane oxygenation, is an advanced life support technique that provides cardiac and pulmonary support similar to cardiopulmonary bypass. ECPR (extracorporeal cardiopulmonary resuscitation) is the rapid deployment of VA-ECMO when conventional cardiopulmonary resuscitation fails to provide return of spontaneous circulation. Evidence in the literature is sparse, but with expanding reported applications, ECPR has shown promise to improve outcomes of cardiac arrest. ECPR is superior to conventional CPR for both survival and neurologic outcomes. ECPR has been successfully used to manage arrests secondary to cardiac and non-cardiac causes. Arrests secondary to primary cardiac causes have the best overall outcome. Other determinants of outcomes of ECPR include duration of low flow state and on-ECMO complications. A narrow list of ECPR contraindications exists, and includes severe neurologic injury and irreversible primary disease process. Various complications can occur with ECPR, and include mechanical, cardiovascular, pulmonary, hematologic, renal, and neurologic complications. Neurologic complications are the most serious, and significantly affect mortality or quality of life. ECPR is a nascent field, and substantial work remains to be done to optimize its application. Given the small number of patients at each institutional level, this is a field ripe for collaborative work and rewarding results.
ECMO,即体外膜氧合,是一种先进的生命支持技术,提供类似于体外循环的心脏和肺支持。体外心肺复苏(extracorporeal cardioporemonary resuscitation, ECPR)是在常规心肺复苏不能恢复患者自主循环时,快速部署VA-ECMO的方法。文献中的证据很少,但随着越来越多的应用报道,ECPR已经显示出改善心脏骤停结果的希望。在生存和神经预后方面,ECPR优于传统CPR。ECPR已成功用于处理继发于心脏和非心脏原因的骤停。继发于原发性心脏原因的骤停有最好的总体结果。ECPR结果的其他决定因素包括低流量状态持续时间和非ecmo并发症。狭窄的ECPR禁忌症列表存在,包括严重的神经损伤和不可逆的原发疾病过程。ECPR可发生各种并发症,包括机械、心血管、肺、血液学、肾脏和神经系统并发症。神经系统并发症是最严重的,并显著影响死亡率或生活质量。ECPR是一个新兴领域,优化其应用仍有大量工作要做。鉴于每个机构级别的患者数量较少,这是一个成熟的合作工作和有益结果的领域。
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引用次数: 1
Extracorporeal Membrane Oxygenation as a Bridge to Cardiac Transplantation 体外膜氧合作为心脏移植的桥梁
Pub Date : 2019-06-04 DOI: 10.5772/INTECHOPEN.84935
N. Nair, E. Góngora
Extracorporeal membrane oxygenation (ECMO) is a technique used for tempo-rary support of patients with end-stage heart or lung failure. This review will focus on the venoarterial ECMO system and its use as a bridge to other long-term durable devices and/or cardiac transplantation. It can be used as a bridge to decision because it helps to gain time to stabilize the patient for further evaluation for long-term treatment such as durable mechanical circulatory pumps or transplantation. ECMO is evolving as a treatment for patients waiting on the transplant list. Increasing utilization of ECMO in adults has revealed some of the common complications such as bleeding and coagulopathy which impact survival in this patient population. The use of VA ECMO as a technique for rescuing patients from cardiogenic shock is very attractive. However, considering the extensive set of complications and the mortality it brings with it makes it a less attractive option as a direct bridge to cardiac transplant. The literature currently on this subject is very scanty and limited to a few studies of small numbers of patients. Further definitive research is needed for consensus on the role of VA ECMO as a bridge to cardiac transplant.
体外膜氧合(ECMO)是一种用于终末期心肺衰竭患者临时支持的技术。这篇综述将聚焦于静脉-动脉ECMO系统及其作为其他长期耐用装置和/或心脏移植的桥梁的应用。它可以作为决定的桥梁,因为它有助于获得时间来稳定患者,以进一步评估长期治疗,如耐用的机械循环泵或移植。体外膜肺氧合作为一种治疗等待移植名单的病人的方法正在发展。成人ECMO使用率的增加揭示了一些常见的并发症,如出血和凝血功能障碍,这些并发症影响了该患者群体的生存。VA ECMO作为一种抢救心源性休克患者的技术是非常有吸引力的。然而,考虑到它带来的广泛的并发症和死亡率,它作为心脏移植的直接桥梁的选择不那么有吸引力。目前关于这一主题的文献非常稀少,仅限于少数患者的研究。对于VA ECMO作为心脏移植的桥梁的作用,需要进一步明确的研究来达成共识。
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引用次数: 0
Isn’t Limb as Precious as Life? 肢体不像生命一样珍贵吗?
Pub Date : 2019-05-30 DOI: 10.5772/INTECHOPEN.86391
P. Mohite, A. Simon
As utilisation of peripheral extra-corporeal life support (ECLS) is becoming clinical routine, its associated complications become more frequent. Distal limb perfusion in femoral cannulation remains one of the Achille’s heels in patients with peripheral ECLS. Unless detected early, limb ischemia may result in loss of limb and sometimes life. A protocol-based approach, precautions during ECLS implantation and explantation procedures and continuous monitoring of the limb during ECLS support are key elements in preventing this complication. Utilisation of a distal limb perfusion cannula helps in prevention as well as management of limb ischemia; however, it may sometimes cause more damage than help. Management and consequence of limb ischemia essentially depends on its severity at the time of detection as well as time of intervention. This chapter offers a brief review of the burden of limb ischemia, means to prevent and approaches to manage it.
随着外周体外生命支持(ECLS)的应用日益成为临床常规,其相关并发症也越来越频繁。远端肢体灌注股骨插管仍然是外周性ECLS患者的跟踵之一。如果不及早发现,肢体缺血可能导致肢体丧失,有时甚至是生命。基于方案的方法、ECLS植入和移植过程中的注意事项以及在ECLS支持期间对肢体的持续监测是预防该并发症的关键因素。使用远端肢体灌注插管有助于预防和管理肢体缺血;然而,有时它可能造成更多的伤害而不是帮助。肢体缺血的处理和后果主要取决于其在检测时的严重程度以及干预时间。本章简要回顾了肢体缺血的负担、预防手段和治疗方法。
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引用次数: 1
Clinical and Administrative Steps to the ECMO Program Development ECMO项目发展的临床和行政步骤
Pub Date : 2019-05-14 DOI: 10.5772/INTECHOPEN.84838
Dianne McCallister, L. Pilon, Joseph Forrester, Samer Alsaleem, C. Kotaru, J. Hanna, Gregory Hickey, Rachele Roberts, E. Douglass, Matthew Libby, M. Firstenberg
Extra-corporeal membrane oxygenation (ECMO) is a rapidly evolving therapy for acute lung and/or heart failure. ECMO, from a technical standpoint, is con-ceptually simple—however, it can be very challenging to implement therapy at the individual patient level as well as at hospital (or healthcare system) level. ECMO program development involves engagement of key stake-holders including physicians, nursing, and administrative leadership. The goal of this chapter is to outline some of the crucial steps in developing a successful ECMO program including high-lighting the necessary resources, team members and structure, and basic program structure and function.
体外膜氧合(ECMO)是一种快速发展的治疗急性肺和/或心力衰竭的方法。从技术角度来看,ECMO在概念上很简单,然而,在个体患者水平以及医院(或医疗保健系统)水平上实施治疗可能非常具有挑战性。ECMO项目的发展涉及关键利益相关者的参与,包括医生、护理人员和行政领导。本章的目标是概述制定成功ECMO计划的一些关键步骤,包括强调必要的资源,团队成员和结构,以及基本的计划结构和功能。
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引用次数: 7
Extracorporeal Carbon Dioxide Removal for the Exacerbation of Chronic Hypercapnic Respiratory Diseases 体外二氧化碳清除对慢性高碳酸血症性呼吸系统疾病加重的影响
Pub Date : 2019-05-04 DOI: 10.5772/INTECHOPEN.84936
L. Morales-Quinteros, A. Artigas
In the past, treatment of acute exacerbations of obstructive disease refractory to medical treatment was invasive mechanical ventilation. As a result of technical improvements, extracorporeal techniques for carbon dioxide removal have aroused as an attractive option to avoid worsening respiratory failure and respiratory acidosis and potentially prevent, shorten the duration of invasive mechanical ventilation (IMV), and serve as rescue therapy in patients with exacerbation of COPD and asthma. In this review, we will present a comprehensive summary of the pathophysiological rationale and evidence of ECCO 2 R in patients with severe exacerbations of these pathologies.
过去,治疗难治性阻塞性疾病急性加重的方法是有创机械通气。由于技术的进步,体外二氧化碳清除技术已经成为一种有吸引力的选择,可以避免呼吸衰竭和呼吸性酸中毒的恶化,并有可能预防和缩短有创机械通气(IMV)的持续时间,并作为COPD和哮喘加重患者的抢救治疗。在这篇综述中,我们将全面总结这些疾病严重加重患者的病理生理原理和ecco2r的证据。
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引用次数: 0
期刊
Advances in Extracorporeal Membrane Oxygenation - Volume 3
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