Bedside troubleshooting during venovenous extracorporeal membrane oxygenation (ECMO)

Area of Science:

• Critical Care Medicine
• Cardiopulmonary Support
• Respiratory Physiology

Background:

• Venovenous extracorporeal membrane oxygenation (VV-ECMO) is crucial for severe respiratory failure unresponsive to conventional treatments.
• VV-ECMO enables lung rest and recovery by mitigating hypoxemia and hypercarbia, while avoiding lung-damaging mechanical ventilation.
• Conventional ventilation can exacerbate lung injury; VV-ECMO facilitates lung-protective strategies to prevent ventilator-induced lung injury (VILI).

Purpose of the Study:

• To review common management challenges faced by clinicians using VV-ECMO.
• To highlight potential complications and their optimal management strategies.
• To underscore the importance of a multidisciplinary team approach for successful VV-ECMO therapy.

Main Methods:

• Literature review of common difficulties in VV-ECMO management.
• Discussion of physiological principles supporting VV-ECMO and lung-protective ventilation.
• Synthesis of clinical data and expert recommendations for managing VV-ECMO complications.

Main Results:

• VV-ECMO facilitates lung-protective ventilation, reducing VILI and promoting recovery.
• Common VV-ECMO complications include ventilation issues, hypoxemia due to recirculation, sepsis, circuit malfunctions, and hematological issues.
• Optimal management of these difficulties is essential for favorable patient outcomes, with a reported 62% survival rate in 2018.

Conclusions:

• Effective management of VV-ECMO requires timely diagnosis and intervention for a range of potential complications.
• A strong emphasis on safety culture and a collaborative, multidisciplinary team are vital for successful VV-ECMO patient care.
• Addressing challenges such as ventilation, oxygenation, infection, circuit integrity, and anticoagulation is key to improving outcomes.