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Arterial chimney graft cannulation for interventional lung assist
Martin A Bürkle1, Ralf Sodian, Ingo Kaczmarek
1Department of Anesthesiology, University Hospital Grosshadern, Ludwig-Maximilians-University, Munich, Germany.
The Annals of Thoracic Surgery
|September 26, 2012
Summary
A novel chimney graft technique enabled arteriovenous extracorporeal CO2 removal using an interventional lung assist membrane ventilator (iLA) in an underweight patient. This approach expands treatment options for patients with small arterial vessels unsuitable for standard cannulation.
Area of Science:
- Cardiovascular Surgery
- Pulmonary Medicine
- Critical Care Medicine
Background:
- Extracorporeal CO2 removal is crucial for acute respiratory failure.
- Standard percutaneous arterial cannulation for devices like the interventional lung assist membrane ventilator (iLA) is challenging in underweight patients due to small vessel diameters.
- Heart-lung transplant recipients may have unique vascular considerations.
Observation:
- An underweight patient with acute respiratory failure and a history of heart-lung transplantation presented with small femoral arteries.
- Percutaneous arterial cannulation with standard iLA cannulae was not feasible.
- A chimney graft was utilized to connect the iLA device to the small-diameter femoral artery.
Findings:
- Successful arteriovenous extracorporeal CO2 removal was achieved using the iLA device via a chimney graft.
- The chimney graft facilitated cannulation in a patient with anatomically challenging small arterial vessels.
- This interventional approach provided a viable alternative for CO2 removal.
Implications:
- This technique offers a potential solution for extracorporeal CO2 removal in underweight or anatomically challenging patient populations.
- It expands therapeutic options for acute respiratory failure management in patients unsuitable for standard cannulation.
- Further research may validate this chimney graft approach for broader clinical application in extracorporeal membrane oxygenation (ECMO) and similar therapies.
