NU07 - Utilizing the Ellik Evacuator During Cystoscopic Retrieval of Uroliths in 12 Dogs: A Descriptive Study

Abstract: Background – Urocystolithiasis is a common problem in dogs and approximately half of canine uroliths are non-dissolvable. Novel management options are continuously being explored to improve current urolith retrieval strategies. Hypothesis/Objectives – To describe a previously underreported technique using cystoscopy and the Bard Ellik Evacuator (EE) suction device to assist in minimally invasive retrieval of canine uroliths, and to describe patient demographic data, procedure type and duration, and clinical outcomes. Animals – 12 client-owned dogs presented with urocystolithiasis. Methods – In this descriptive study, records of dogs undergoing cystoscopic urolith retrieval utilizing the Ellik Evacuator were evaluated retrospectively. Retrieval using EE is described in detail. Patient and clinical data are reported; for quantitative variables, the median and range are provided. Results – 12 dogs underwent 13 cystoscopic procedures utilizing EE. Most (10/12) dogs were spayed females; eight different breeds were represented. The median age was 10y (range 2-11y), and median weight was 8kg (range 5.5-37kg). In 8/13 procedures, transurethral cystoscopy alone using EE +/- wire basket and/or grasping forceps was performed (median procedure duration 36 minutes; range 16-52 minutes). In 5/13 procedures, additional interventions including laser lithotripsy, perineal approach, etcetera were performed as indicated (median procedure duration 110 minutes; range 42-144 minutes). No significant complications were noted; complete retrieval of uroliths was documented in 12/13 cases. Conclusions/Clinical Importance – Use of the EE during cystoscopy is described, and the device may aid in minimally-invasive retrieval of uroliths. Further investigation is needed to determine its benefit relative to current interventions.