Veno-arterial Ecmo
Veno-arterial Ecmo - Related Videos
03:40
Point-of-Care Ultrasound for Peripheral Veno-Arterial Extracorporeal Membrane Oxygenation Without Left Ventricular Venting
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Cited by 1 •
2025
This protocol outlines the use of point-of-care ultrasound (POCUS) to monitor patients on peripheral veno-arterial extracorporeal membrane oxygenation (V-A ECMO) without left ventricular venting. It evaluates left ventricular distension, intracardiac or aortic root thrombus, and identifies useful cardiac POCUS parameters for weaning from V-A ECMO.
06:41
Veno-Venous Extracorporeal Membrane Oxygenation in a Mouse
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Cited by 10 •
2018
Here we present a protocol describing the technique of veno-venous extracorporeal membrane oxygenation (ECMO) in a non-intubated, spontaneously breathing mouse. This murine model of ECMO can be effectively implemented in experimental studies of acute and end-stage lung diseases.
06:57
Arterial Line Placement
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2023
Source: Sharon Bord, MD, Department of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA When monitoring patients, it is important to obtain values that are accurate and reliable. Blood pressure monitoring is one of the essential vital signs, and for a majority of patients, measuring it utilizing non-invasive techniques provides accurate values. However, there are situations in which the blood pressure requires more exact, specific, and reliable measurements.
13:10
Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Cited by 7 •
2017
Surgical correction of ALCAPA is highly recommended, regardless of age or the degree of intercoronary collateralization. This protocol presents a technique for the direct re-implantation of adult-type ALCAPA into the aorta to re-establish the dual-coronary perfusion. Whenever feasible, direct re-implantation is preferred to other surgical correction techniques.
12:49
Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model
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Cited by 2 •
2022
In this protocol, a model of porcine orthotopic liver transplantation after static cold storage of donor organs for 20 h without the use of a veno-venous bypass during engraftment is described. The approach uses a simplified surgical technique with minimization of the anhepatic phase and sophisticated volume and vasopressor management.
FAQs
Arterial return allows VA-ECMO to provide systemic perfusion even when native cardiac output is inadequate. Venous blood is diverted to the circuit, propelled by a pump, and returned after membrane gas exchange, so oxygen delivery and carbon dioxide removal can continue while the failing heart performs less work. This makes the system relevant when both circulatory and respiratory support are needed.
The membrane oxygenator performs two separate gas-exchange tasks: it adds oxygen to blood and removes carbon dioxide. The circuit therefore addresses inadequate oxygenation as well as the circulatory consequences of cardiac failure. In clinical management, oxygenator function must be considered alongside pump-supported perfusion, because effective support depends on both components working together.
Anticoagulation helps manage the risk of thrombosis within the extracorporeal circuit and the patient, but it also increases concern about bleeding. This creates a continuous clinical balance rather than a single fixed treatment goal. Careful management is essential because either complication can undermine support, worsen patient stability, and complicate the course of temporary cardiac and respiratory assistance.
Systemic perfusion does not eliminate the need to assess how individual organs are being supplied with blood. VA-ECMO is intended to support circulation, yet inadequate or changing perfusion can still threaten organ function. Monitoring organ perfusion helps clinicians judge whether support is achieving its intended outcome and recognize problems that require adjustment or further treatment.
Clinicians may consider Veno-arterial ECMO when conventional treatment cannot maintain adequate circulation or oxygenation, particularly in selected patients with refractory cardiogenic shock, cardiac arrest, or severe combined cardiac and respiratory failure. The method is not presented as routine treatment for every critically ill patient; its use depends on the clinical situation and the need for temporary support.
VA-ECMO can function as a bridge rather than a final treatment strategy. Depending on the patient’s course, support may continue until the heart and lungs recover, until transplantation becomes possible, or until longer-term mechanical support is established. This framing helps clinicians use temporary extracorporeal assistance to preserve circulation while determining the next appropriate pathway.
In cardiac arrest or refractory cardiogenic shock, the immediate problem is failure to sustain effective circulation despite conventional treatment. VA-ECMO can provide temporary systemic perfusion while clinicians address the underlying condition and evaluate recovery or longer-term options. Its relevance in these settings comes from supporting both circulation and oxygenation during periods when native cardiac function is critically compromised.