Urolithiasis 1
16 Aug 2025
13:30
15:00
TICC - 2F 201DE
New Frontiers in RIRS Surgery
UAA Congress 2025 has prepared an outstanding series of sessions on urinary stone disease, featuring leading experts from across Asia. Topics will include the latest trends in stone management, practical techniques for DISS, FANS, and intrarenal pressure monitoring, a comparative overview of different laser technologies, the application of AI in stone surgery, and tips for ECIRS positioning. With such a diverse and cutting-edge program, the event promises to be both informative and inspiring. We warmly welcome all professionals and enthusiasts in the field of stone disease to join us and share their insights.
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13:30
15:00
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Sung Yong Cho Korea (Republic of)
Moderator
Robotic URS: Can It Really Improve Precision and Reduce Surgeon Fatigue?Use of AI and Robots in Endourology
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13:30
13:45
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Vineet GauharSingapore
Speaker
Experimental and Real World Take Away Messages on DISSSuction in Renal Stone Treatment: DISS, FANS or Combined Procedure?Need of Future Endourology
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13:45
14:00
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Vineet GauharSingapore
Speaker
Experimental and Real World Take Away Messages on DISSSuction in Renal Stone Treatment: DISS, FANS or Combined Procedure?Need of Future Endourology
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14:00
14:10
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14:10
14:20
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Yi-Sheng TaiTaiwan
Speaker
Which Laser for RIRS: Thulium Fiber Laser Thulium Fiber Laser (TFL)is a type of fiber laser, distinct from Thulium laser used for prostate surgey. It’ a cutting-edge laser and rapidly gaining traction in urology The machine is compact, portable, quiet with air-cooling, and lower power consumption.It employs a thulium-doped silica fiber powered by diode lasers, emitting light at 1940 nm, matching water absorption peaks. This results in a high absorption coefficient and shallow penetration (~0.1 mm), enabling precise energy delivery and minimizing tissue damage.Compared to Holmium lasers, TFL operates at lower energies (down to 25mJ) and higher frequencies (up to 2000Hz) for delicate tissue ablation and fine stone dusting.
The most notable change is pulse modulationHo:YAG lasers has Spike-shaped pulses and indicate greater energy concentration, resulting in higher localized heating, uneven fragmentation, and increased retropulsion.TFL produces pulses with uniform energy distribution and lower peak power, resulting in consistent ablation with less retropulsion and fewer thermal spikes.Higher water absorption rapidly forms a vapor channel, enhancing ablation efficiency.
But, TFL is not as ideal in surgical scenarios. At settings of low pulse energy (0.2 J) and high frequency (100 Hz), it tends to cause troublesome char formation and spark generation, particularly when treating calcium phosphate stones. These phenomena, explosive combustion and carbonization can reduce ablation efficiency and increase the risk of thermal damage and fiber degradation. Optimizing TFL settings is very important for outcome and safety and ongoing evaluation. AI in Medical Imaging – Converting 2D Black & White to 3D and Applications in Mixed Reality (MR) used in RIRS Artificial Intelligence (AI) and Extended Reality (XR) are at the forefront of innovation in modern medicine. In endoscopic surgery, these technologies are increasingly being integrated to enhance procedural precision and intraoperative guidance.
One experimental application involves using AI to convert 2D CT scans into 3D visualizations, offering surgeons a more intuitive understanding of anatomical structures. Devices like the Apple Vision Pro may be used to create fully immersive virtual environments, although it is not currently approved as a medical device.
In clinical practice, Mixed Reality (MR)—which blends real and virtual environments with real-time interaction—has shown promise. MR has been used during Retrograde Intrarenal Surgery (RIRS) to reduce the risk of missed stones, and in Endoscopic Combined Intrarenal Surgery (ECIRS) to overlay anatomical data, improving puncture accuracy during Percutaneous Nephrolithotomy (PCN).
As an emerging field, further advancements will depend on enhanced imaging resolution, improved intrarenal navigation and integration of AI-driven real-time stone detection.
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14:20
14:30
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Takaaki InoueJapan
Speaker
New Advancement on Retrograde Intrarenal SurgeryRetrograde intrarenal surgery (RIRS) has dramatically grown up around world for stone management. Why has RIRS been getting popullar and increasing nowadays?. The reaseon are absoulutely "Technological development with collaborated engineering comapny" and " Global communicaton and collaboration in Endourology". Endourology has still been improving and expanding more and more. Thereby, many novel devices and machine are launching faster. We, urologists should catch up this faster trend and acquire these knowledge for our clinical use. However, most of urologists can not catch up it. Therefore, I will share you all these novel chage of mind and tech-knowledge of stone field in this session. Do We Need Augmented Reality for Renal Stone Management?What is Augmented reality and Vertual reality in medicine?. The paradigm shift of medicine which includes AI, Robotics, VR, and AR etc named Digital transformation has been still emerging. Of course, these shift is gradually permeating in stone field. Especially, in terms of VR, AR, we wonder if this kind of DX is useful in stone management. if so, how do we use it in clinical practice? Today, I will talk these future role in stone management, and expectation. Which Laser for RIRS: Pulsed Thulium YAG Laser We can use three kind of laser such as Holumium YAG, Thulium YAG, and Thulium fiber laser for stone management. Which lase are best option for stone patients? I will talk about featurs and advantage of pulsed-Thulium YAG laser. There are two kinds of p-Tm;YAG laser machine nowadays. P^Tm;YAG has unique characteristics as laser wave. Therefore, this laser would be able to use Stone, BPH, UTUC. Especially, p-Tm YAG laser can utilize for Stone ablation, fragmentingand and UTUC ablation, shock wave. We will share our experoence and thoughts. New Advancement on Retrograde Intrarenal Surgery
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14:30
14:40
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Anil ShresthaNepal
Speaker
Clearpetra the Sheath of Choice for Lower Pole StonesSFR Assessment: Timing and Modalities
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14:40
14:55
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14:55
15:00
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