E-171 The wallaby esperance catheter for neurointerventional procedures

Introduction/Purpose

The design of the newly available Esperance aspiration catheter (Wallaby Medical) combines proximal support and distal flexibility which allows the catheter to navigate through and offer stability in tortuous vessel anatomy. This is achieved by properties such as flexible transition zones, kink resistance, pushable proximal shaft, long hydrophilic segment, and ultra-thin inner liner. The catheter received Food and Drug Administration 510K clearance in December 2021 and is available in 5 French and 6 French sizes with lengths of 115 cm, 125 cm and 131 cm. We here present our experience with the use of the Esperance catheter for a variety of neurointerventional procedures. Of note, the catheter is currently marketed for mechanical aspiration in acute ischemic stroke and other uses are considered off-label.

Materials and Methods

A retrospective review of our neurointerventional database was conducted and all cases in which the Esperance catheter was used were identified between December 2022 and March 2023. Patient data, procedural information and catheter performance were recorded.

Results

The Esperance catheter was used in a total of 15 patients (10 females) with mean age of 56 years (range 38-80 years) and a total of 16 interventions. The interventions included mechanical thrombectomy (n=3), aneurysm coiling (n=4), flow diverter placement (n=3) WEB device placement (n=2) stent-assisted aneurysm coiling (n=1), intracranial stent placement (n=1), venous sinus stenting (n=1) and particle embolization for epistaxis (n=1). The catheter was successfully advanced in all cases. Navigation occurred over several different microcatheters such as the Prowler EX and Select Plus (Cerenovus), Phenom 21 and 27 (Medtronic), Via 17 and 33 (Microvention), Trevo Pro 18 and Excelsior SL-10 (Stryker), over a Glidewire 0.035-inch in one case and over the Tenzing 7 insert catheter (Route 92) in 2 cases. The most distal vessel in which the tip of the Esperance catheter was placed was the petrous ICA (n=1), cavernous ICA (n=5), ICA terminus/communicating segment (n=2), M2/MCA (n=1), V3 segment (n=2), basilar artery (n=2), Internal maxillary artery (n=1) and transverse sinus (n=1). The catheter offered the desired support in all cases. The catheter was never exchanged due to lack of support and/or inability to perform the procedure. No catheter related complications occurred.

Conclusion

The Esperance catheter is a new device in the neurointerventional toolbox. It can be safely and successfully used for a variety of procedures.

Disclosures

A. Kuhn: None. A. Puri: 1; C; NIH, Microvention, Cerenovus, Medtronic Neurovascular and Stryker Neurovascular. 2; C; Medtronic Neurovascular, Stryker NeurovascularBalt, Q’Apel Medical, Cerenovus, Microvention, Imperative Care, Agile, Merit, CereVasc and Arsenal Medical. 4; C; InNeuroCo, Agile, Perfuze, Galaxy and NTI.. M. Garcia: None. S. Sarid: None. J. Singh: None.