A new cannula for antegrade selective cerebral perfusion

Area of Science:

• Cardiovascular Surgery
• Neurosurgery
• Medical Device Innovation

Background:

• Antegrade selective cerebral perfusion (ASCP) is crucial for brain protection during aortic arch surgery.
• Current cannulation techniques for ASCP have limitations.
• Novel devices are needed to improve safety and efficacy.

Purpose of the Study:

• To evaluate a new cannula designed for ASCP using the Seldinger technique.
• To assess the safety and efficacy of this novel cannulation method.

Main Methods:

• The new cannula allows transarterial introduction via a guidewire (Seldinger technique) or direct ostial insertion.
• It can be placed before aortic arch manipulation and hypothermic circulatory arrest.
• Five patients underwent procedures using this new cannula.

Main Results:

• No strokes or spinal cord injuries were observed in the 5 patients.
• No significant stenosis at cannulation sites was detected intraoperatively or on CT follow-up.
• All patients were alive and free from major neurological events at 2-year follow-up.

Conclusions:

• Transarterial introduction of the AV Flow cannula using the Seldinger technique is a viable alternative for ASCP.
• This technique ensures complete cerebral protection during hypothermic circulatory arrest.
• It simplifies arch vessel reimplantation and hemiarch procedures.