Ep. 337 Advancements in Ureteroscopy for Stone Management with Dr. Karen Stern

How is suction technology changing what it means to be “stone-free” after ureteroscopy? On this episode of BackTable Urology, Dr. Ruchika Talwar welcomes Dr. Karen Stern, endourologist at Mayo Clinic Arizona, for a practical discussion of how ureteroscopy is evolving in the era of suction. They discuss how thin-slice CT has revealed just how much stone typically remains after surgery, why dusting versus fragmenting is now a patient-dependent choice, and what to consider when selecting between suction sheaths, aspiration scopes, and traditional access. --- Get the BackTable app https://www.backtable.com/app --- This podcast is supported by Dornier https://www.dornier.com/backtable --- Timestamps 00:00 - Introduction 02:16 - Residual Stone and Defining Success 04:59 - Dusting, Fragmentation and Suction Devices 07:15 - Patient Selection, OR Setup and Laser Settings 11:39 - Evidence, Stone Clearance and Infection Risk 15:39 - Community Adoption and Technique Pearls 20:05 - Integrated Systems and Artificial Intelligence 22:29 - Take-Home Points and Closing Remarks --- More about this episode The doctors discuss patient selection, OR setup, stenting, and why stones over a centimeter benefit most from a suction approach. Dr. Stern shares her tips for suction device setup, irrigation and suction settings, and how even a short learning curve can make these techniques routine. They review infection risks, evidence on residual stone volume, pearls for community adoption, and look ahead to integrated laser-suction platforms and AI tools that may one day help define when a case is truly finished. Dr. Karen Stern closes with advice for urologists on the fence: every technology works, but the best choice is the one that fits your practice. --- Resources Are We Overreporting Post-Op Sepsis? The Difference Between Reported and Verified Rates of Post-Ureteroscopy Sepsis Using the Sepsis 3 Criteria at a Single Institution. J Endourol. 2026 https://doi.org/10.1177/08927790251394736 Flexible Ureteroscopy with a Flexible and Navigable Suction Ureteral Access Sheath Versus Mini-Percutaneous Nephrolithotomy for Treatment of 2-3 cm Renal Stones: An International, Multicenter, Randomized, Noninferiority Trial. Eur Urol. 2026 https://doi.org/10.1016/j.eururo.2025.06.001 Dr. Karen Stern, Mayo Clinic physician profile https://www.mayoclinic.org/biographies/stern-karen-l-m-d/bio-20464490 Dr. Ruchika Talwar, BackTable Urology contributor page https://www.backtable.com/shows/urology/contributors/dr-ruchika-talwar --- BackTable Urology is the go-to podcast for urologists, urologic oncologists, and urogynecologists. Download the free BackTable app to get early access to new episodes, cases, and courses curated by physicians in your specialty. ► https://www.backtable.com/app