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Gauhar V, Traxer O, Castellani D, Sietz C, Chew BH, Fong KY, Hamri SB, Gökce MI, Gadzhiev N, Galosi AB, Yuen SKK, El Hajj A, Ko R, Zawadzki M, Sridharan V, Lakmichi MA, Corrales M, Malkhasyan V, Ragoori D, Soebhali B, Tan K, Chai CA, Tursunkulov AN, Tanidir Y, Persaud S, Elshazly M, Kamal W, Tefik T, Shrestha A, Tiong HC, Somani BK. Could Use of a Flexible and Navigable Suction Ureteral Access Sheath Be a Potential Game-changer in Retrograde Intrarenal Surgery? Outcomes at 30 Days from a Large, Prospective, Multicenter, Real-world Study by the European Association of Urology Urolithiasis Section. Eur Urol Focus 2024:S2405-4569(24)00073-7. [PMID: 38789313 DOI: 10.1016/j.euf.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/03/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND AND OBJECTIVE The aim of this study was to evaluate the stone-free status (SFS) rate and complications after flexible ureteroscopy (fURS) for treatment of renal stones using a flexible and navigable suction (FANS) ureteral access sheath. METHODS Data for adults undergoing fURS in 25 centers worldwide were prospectively collected (August 2023 to January 2024). Exclusion criteria were abnormal renal anatomy and ureteral stones. All patients had computed tomography scans before and within 30 d after fURS with a FANS ureteral access sheath. SFS was defined as follows: grade A, zero fragments; grade B, a single fragment ≤2 mm; grade C, a single fragment 2.1-4 mm; and grade D, single/multiple fragments >4 mm. Data for continuous variables are presented as the median and interquartile range (IQR). Multivariable logistic regression was performed to evaluate predictors of grade A SFS. KEY FINDINGS AND LIMITATIONS The study enrolled 394 patients (59.1% male) with a median age of 49 yr (IQR 36-61). The median stone volume was 1260 mm3 (IQR 706-1800). Thulium fiber laser (TFL) was used in 45.9% of cases and holmium laser in the rest. The median lasing time was 18 min (IQR 11-28) and the median operative time was 49 min (IQR 37-70). One patient required a blood transfusion and 3.3% of patients had low-grade fever. No patient developed sepsis. Low-grade ureteral injury occurred in eight patients (2%). The grade A SFS rate was 57.4% and the grade A + B SFS rate was 97.2%, while 2.8% of patients had grade C or D SFS. Eleven patients underwent repeat fURS. Multivariable analysis revealed that a stone volume of 1501-3000 mm3 (odds ratio 0.50) and of >3000 mm3 (odds ratio 0.29) were significantly associated with lower probability of grade A SFS, while TFL use was associated with higher SFS probability (odds ratio 1.83). Limitations include the lack of a comparative group. CONCLUSIONS AND CLINICAL IMPLICATIONS fURS using a FANS ureteral access sheath resulted in a high SFS rate with negligible serious adverse event and reintervention rates. PATIENT SUMMARY We looked at 30-day results for patients undergoing telescopic laser treatment for kidney stones using a special type of vacuum-assisted sheath to remove stone fragments. We found a high stone-free rate with minimal complications.
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Affiliation(s)
- Vineet Gauhar
- Department of Urology, Ng Teng Fong General Hospital, Singapore
| | - Olivier Traxer
- Department of Urology, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Daniele Castellani
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy.
| | - Christian Sietz
- Department of Urology, Medical University of Vienna, Vienna, Austria
| | - Ben Hall Chew
- Department of Urology, University of British Columbia, Vancouver, Canada
| | - Khi Yung Fong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Saeed Bin Hamri
- Division of Urology, Department of Surgery, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Mehmet Ilker Gökce
- Department of Urology, Ankara University School of Medicine, Ankara, Turkey
| | - Nariman Gadzhiev
- Department of Urology, St. Petersburg State University Hospital, St. Petersburg, Russia
| | - Andrea Benedetto Galosi
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy
| | - Steffi Kar Kei Yuen
- SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Albert El Hajj
- Division of Urology, Department of Surgery, American University of Beirut, Beirut, Lebanon
| | - Raymond Ko
- Nepean Urology Research Group, Kingswood, Australia
| | | | | | - Mohamed Amine Lakmichi
- Department of Urology, University Hospital Mohammed the VIth of Marrakesh, Marrakesh, Morocco
| | - Mariela Corrales
- Department of Urology, Sorbonne University, Tenon Hospital, AP-HP, Paris, France
| | - Vigen Malkhasyan
- Endourological Department, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - Deepak Ragoori
- Department of Urology, Asian Institute of Nephrology & Urology, Hyderabad, India
| | - Boyke Soebhali
- Department of Urology, Abdul Wahab Sjahranie Hospital Medical Faculty, Muliawarman University, Samarinda, Indonesia
| | - Karl Tan
- Department of Surgery, Section of Urology, Veterans Memorial Medical Center, Quezon City, Philippines
| | - Chu Ann Chai
- Department of Surgery, Urology Unit, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Yiloren Tanidir
- Department of Urology, Marmara University School of Medicine, Istanbul, Turkey
| | - Satyendra Persaud
- Division of Clinical Surgical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago
| | | | - Wissam Kamal
- Urology Unit, King Fahd General Hospital, Jeddah, Saudi Arabia
| | - Tzevat Tefik
- Department of Urology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - Anil Shrestha
- Department of Urology, National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal
| | - Heng Chin Tiong
- Department of Urology, Ng Teng Fong General Hospital, Singapore
| | - Bhaskar Kumar Somani
- Department of Urology, University Hospitals Southampton, NHS Trust, Southampton, UK
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Panthier F, Kwok JL, Tzou DT, Monga M, Traxer O, Keller EX. What is the definition of stone dust and how does it compare with clinically insignificant residual fragments? A comprehensive review. World J Urol 2024; 42:292. [PMID: 38704492 DOI: 10.1007/s00345-024-04993-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/12/2024] [Indexed: 05/06/2024] Open
Abstract
PURPOSE During endoscopic stone surgery, Holmium:YAG (Ho:YAG) and Thulium Fiber Laser (TFL) technologies allow to pulverize urinary stones into fine particles, ie DUST. Yet, currently there is no consensus on the exact definition of DUST. This review aimed to define stone DUST and Clinically Insignificant Residual Fragments (CIRF). METHODS Embase, MEDLINE (PubMed) and Cochrane databases were searched for both in vitro and in vivo articles relating to DUST and CIRF definitions, in November 2023, using keyword combinations: "dust", "stones", "urinary calculi", "urolithiasis", "residual fragments", "dusting", "fragments", "lasers" and "clinical insignificant residual fragments". RESULTS DUST relates to the fine pulverization of urinary stones, defined in vitro as particles spontaneously floating with a sedimentation duration ≥ 2 sec and suited for aspiration through a 3.6Fr-working channel (WC) of a flexible ureteroscope (FURS). Generally, an upper size limit of 250 µm seems to agree with the definition of DUST. Ho:YAG with and without "Moses Technology", TFL and the recent pulsed-Thulium:YAG (pTm:YAG) can produce DUST, but no perioperative technology can currently measure DUST size. The TFL and pTm:YAG achieve better dusting compared to Ho:YAG. CIRF relates to residual fragments (RF) that are not associated with imminent stone-related events: loin pain, acute renal colic, medical or interventional retreatment. CIRF size definition has decreased from older studies based on Shock Wave Lithotripsy (SWL) (≤ 4 mm) to more recent studies based on FURS (≤ 2 mm) and Percutaneous Nephrolithotomy(PCNL) (≤ 4 mm). RF ≤ 2 mm are associated with lower stone recurrence, regrowth and clinical events rates. While CIRF should be evaluated postoperatively using Non-Contrast Computed Tomography(NCCT), there is no consensus on the best diagnostic modality to assess the presence and quantity of DUST. CONCLUSION DUST and CIRF refer to independent entities. DUST is defined in vitro by a stone particle size criteria of 250 µm, translating clinically as particles able to be fully aspirated through a 3.6Fr-WC without blockage. CIRF relates to ≤ 2 RF on postoperative NCCT.
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Affiliation(s)
- Frederic Panthier
- GRC No 20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020, Paris, France.
- Service d'Urologie, Assistance-Publique Hôpitaux de Paris, Hôpital Tenon, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France.
- UMR 8006 CNRS-Arts et Métiers ParisTech, PIMM, 151 bd de l'Hôpital, 75013, Paris, France.
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France.
| | - Jia-Lun Kwok
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Urology, Tan Tock Seng Hospital, Singapore, Singapore
| | - David T Tzou
- Department of Urology, University of Arizona, Tucson, AZ, USA
| | - Manoj Monga
- Department of Urology, University of California-San Diego School of Medicine, La Jolla, CA, USA
| | - Olivier Traxer
- GRC No 20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020, Paris, France
- Service d'Urologie, Assistance-Publique Hôpitaux de Paris, Hôpital Tenon, Sorbonne Université, 4 Rue de la Chine, 75020, Paris, France
- UMR 8006 CNRS-Arts et Métiers ParisTech, PIMM, 151 bd de l'Hôpital, 75013, Paris, France
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France
| | - Etienne X Keller
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
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Geavlete P, Multescu R, Mares C, Buzescu B, Iordache V, Geavlete B. Retrograde Intrarenal Surgery for Lithiasis Using Suctioning Devices: A Shift in Paradigm? J Clin Med 2024; 13:2493. [PMID: 38731026 PMCID: PMC11084153 DOI: 10.3390/jcm13092493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/12/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
New suction endoscopes, ureteral access sheaths (UAS) and catheters aim to improve the efficacy of flexible ureteroscopy and optimize its safety. Suction UAS with non-flexible tips have shown promising results, especially in maintaining low intrarenal pressure, but also in removing small debris and reducing the "snow globe" effect. In addition, suctioning UAS with a flexible tip offers the advantage of being able to be navigated through the pyelocaliceal system to where the laser lithotripsy is performed. It can also remove small stone fragments when the flexible ureteroscope is retracted, using the Venturi effect. Direct in-scope suction (DISS) involves aspirating dust and small stone debris through the working channel of a flexible ureteroscope, thus regulating intrarenal pressure and improving visibility. Steerable aspiration catheters are other devices designed to increase stone clearance of the pyelocaliceal system. They are inserted under fluoroscopic guidance into every calyx after retraction of the flexible ureteroscope, alternating irrigation and aspiration to remove dust and small gravels. Combining flexible-tip suction UAS and the DISS technique may offer some advantages worth evaluating. The advantage of using these instruments to achieve a low intrarenal pressure was demonstrated. The true practical impact on the long-term stone-free status is a matter requiring further studies.
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Affiliation(s)
- Petrisor Geavlete
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
- Faculty of General Medicine, University of Medicine and Pharmacy, ‘Carol Davila’ Bucharest, 050474 Bucharest, Romania
| | - Razvan Multescu
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
| | - Cristian Mares
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
- Faculty of General Medicine, University of Medicine and Pharmacy, ‘Carol Davila’ Bucharest, 050474 Bucharest, Romania
| | - Bogdan Buzescu
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
- Faculty of General Medicine, University of Medicine and Pharmacy, ‘Carol Davila’ Bucharest, 050474 Bucharest, Romania
| | - Valentin Iordache
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
| | - Bogdan Geavlete
- Department of Urology, “Saint John” Emergency Clinical Hospital, 042122 Bucharest, Romania; (P.G.); (V.I.); (B.G.)
- Faculty of General Medicine, University of Medicine and Pharmacy, ‘Carol Davila’ Bucharest, 050474 Bucharest, Romania
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Kritsing S, Udomsombatmeechai K, Prohsoontorn O, Sangnoppatham N, Ketsuwan C. Application of the direct in-scope suction technique in antegrade flexible ureteroscopic lithotripsy for the removal of a large ureteric calculus in a kidney transplant recipient: A case report. Urol Case Rep 2024; 53:102663. [PMID: 38312135 PMCID: PMC10834450 DOI: 10.1016/j.eucr.2024.102663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/14/2024] [Accepted: 01/19/2024] [Indexed: 02/06/2024] Open
Abstract
The occurrence of a large ureteric calculus in a transplanted kidney, originating from a donor, is a rare but significant complication. It poses risks such as urinary obstruction, septicemia, and potential loss of allograft function. In this case, we report our first use of the direct in-scope suction technique during antegrade flexible ureteroscopy lithotripsy. This method successfully removed a donor-derived ureteric calculus in a kidney transplant recipient. The procedure resulted in complete stone removal, and the patient experienced a favorable postoperative recovery without additional adverse events.
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Affiliation(s)
- Sucha Kritsing
- Division of Urology, Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kraipith Udomsombatmeechai
- Division of Urology, Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ornnicha Prohsoontorn
- Division of Urology, Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nopparuj Sangnoppatham
- Division of Urology, Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chinnakhet Ketsuwan
- Division of Urology, Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Excellent Center of Organ Transplantation, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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5
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Talyshinskii A, Gauhar V, Castellani D, Knoll T, Shah K, Wan SP, Somani BK. Single use flexible ureteroscopes: a review of current technologies and cost effectiveness analysis. Curr Opin Urol 2024; 34:110-115. [PMID: 37962372 DOI: 10.1097/mou.0000000000001152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
PURPOSE OF REVIEW Flexible ureteroscopy (fURS) has evolved into both diagnostic and therapeutic modalities. Our review discusses the cost-effectiveness of single use flexible ureteroscopes (su-fURS) and the use of these instruments in routine urological practice. RECENT FINDINGS There are studies which support the use of su-fURS with an argument of both cost and clinical utility over reusable flexible ureteroscopes (ru-fURS). However, the cost may vary across countries, hence is difficult to compare the results based on the current literature. Perhaps therefore there is a role for hybrid strategy incorporating ru- and su-fURS, where su-fURS are employed in complex endourological cases with a high risk of scope damage or fracture to preserve ru-fURS, with the ability to maintain clinical activity in such an event. SUMMARY While there seems to be some cost advantages with su-fURS with reduced sterilization and maintenance costs, the data supporting it is sparse and limited. This choice of scope would depend on the durability of ru-fURS, procedural volumes, limited availability of sterilization units in some centers and potential risk of infectious complications. It is time that cost-benefit analysis is conducted with defined outcomes for a given healthcare set-up to help with the decision making on the type of scope that best serves their needs.
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Affiliation(s)
- Ali Talyshinskii
- Department of Urology and Andrology, Astana Medical University, Astana, Kazakhstan
| | - Vineet Gauhar
- Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Daniele Castellani
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Polytechnic University of Marche, Ancona, Italy
| | - Thomas Knoll
- Department of Urology, Sindelfingen Medical Center, University of Tuebingen, Germany
| | - Kaushikkumar Shah
- Varun Kidney Hospital and Prasutigarh, Department of Urology, Surat, India
| | - Shaw P Wan
- Apex Urology and Stone Center, Castle Hayne, North Carolina, USA
| | - Bhaskar K Somani
- Department of Urology, University Hospital Southampton NHS Trust, Southampton, UK
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Jahrreiss V, Nedbal C, Castellani D, Gauhar V, Seitz C, Zeng G, Juliebø-Jones P, Keller E, Tzelves L, Geraghty R, Rangarajan K, Traxer O, Philip J, Skolarikos A, Kallidonis P, Bres-Niewada E, Somani B. Is suction the future of endourology? Overview from EAU Section of Urolithiasis. Ther Adv Urol 2024; 16:17562872241232275. [PMID: 38405421 PMCID: PMC10893777 DOI: 10.1177/17562872241232275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 01/23/2024] [Indexed: 02/27/2024] Open
Affiliation(s)
- Victoria Jahrreiss
- Department of Urology, Medical University of Vienna, Vienna, Austria
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
- EAU Section of Urolithiasis
| | - Carlotta Nedbal
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Urology Unit, Azienda Ospedaliero-Universitaria Delle Marche, Università Politecnica Delle Marche, Ancona, Italy
| | - Daniele Castellani
- Urology Unit, Azienda Ospedaliero-Universitaria Delle Marche, Università Politecnica Delle Marche, Ancona, Italy
| | - Vineet Gauhar
- EAU Section on Urolithiasis
- Department of Urology, Ng Teng Fong General Hospital, National University Health System, Singapore, Singapore
| | - Christian Seitz
- Department of Urology, Medical University of Vienna, Vienna, Austria
- EAU Section on Urolithiasis
| | - Guohua Zeng
- Guangdong Key Laboratory of Urology, Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | | | - Etienne Keller
- EAU Section on Urolithiasis
- Department of Urology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
| | - Lazaros Tzelves
- Second Department of Urology, Sismanoglio General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Rob Geraghty
- Department of Urology, Freeman Hospital, Newcastle upon Tyne, UK
| | - Karan Rangarajan
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Olivier Traxer
- Department of Urology, AP-HP, Tenon Hospital, Sorbonne University, Paris, France
| | - Joe Philip
- Bristol Urological Institute, Southmead Hospital, Westbury on Trym, Bristol, UK
| | - Andreas Skolarikos
- Second Department of Urology, Sismanoglio General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Ewa Bres-Niewada
- EAU Section on Urolithiasis
- Department of Urology, Roefler Memorial Hospital, Pruszków, Poland
- Faculty of Medicine, Lazarski University, Warsaw, Poland
| | - Bhaskar Somani
- University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton SO16 6YD, UK
- EAU Section of Urolithiasis
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7
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Giulioni C, Castellani D, Traxer O, Gadzhiev N, Pirola GM, Tanidir Y, da Silva RD, Glover X, Giusti G, Proietti S, Mulawkar PM, De Stefano V, Cormio A, Teoh JYC, Galosi AB, Somani BK, Emiliani E, Gauhar V. Experimental and clinical applications and outcomes of using different forms of suction in retrograde intrarenal surgery. Results from a systematic review. Actas Urol Esp 2024; 48:57-70. [PMID: 37302691 DOI: 10.1016/j.acuroe.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/24/2023] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To identify the latest advances in suction devices and evaluate their effect in Retrograde intrarenal surgery (RIRS) and ureteroscopy for stones. BASIC PROCEDURES A systematic literature search was performed on 4th January 2023 using Scopus, PubMed, and EMBASE. Only English papers were included; both pediatric and adult studies were accepted. Duplicate studies, case reports, letters to the editor, and meeting abstracts were excluded. MAIN FINDINGS Twenty-one papers were selected. Several methods have been proposed for suction use in RIRS, such as through the ureteral access sheath or directly to the scope. Artificial intelligence can also regulate this system, monitoring pressure and perfusion flow values. All the proposed techniques showed satisfactory perioperative results for operative time, stone-free rate (SFR), and residual fragments. Moreover, the reduction of intrarenal pressure (induced by aspiration) was also associated with a lower infection rate. Even the studies that considered kidney stones with a diameter of 20 mm or higher reported higher SFR and reduced postoperative complications. However, the lack of well-defined settings for suction pressure and fluid flow prevents the standardization of the procedure. CONCLUSION Aspiration device in the surgical treatment of urinary stones favours a higher SFR, reducing infectious complications, as supported by the included studies. RIRS with a suction system provided to be a natural successor to the traditional technique, regulating intrarenal pressure and aspirating fine dust.
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Affiliation(s)
- C Giulioni
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy.
| | - D Castellani
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy
| | - O Traxer
- Servicio de Urología, Universidad de La Sorbona, Hospital Tenon (AP-HP), París, France
| | - N Gadzhiev
- Servicio de Endourología, Universidad Médica Estatal de San Petersburgo, Saint-Petersburgo, Russia
| | - G M Pirola
- Servicio de Urología, Hospital San Giuseppe, Grupo MultiMedica, Milán, Italy
| | - Y Tanidir
- Departamento de Urología, Facultad de Medicina, Universidad de Marmara, Estambul, Turkey
| | - R D da Silva
- Departamento de Urología, Facultad de Medicina, Universidad de Colorado, United States
| | - X Glover
- Departamento de Urología, Facultad de Medicina, Universidad de Colorado, United States
| | - G Giusti
- Centro Europeo de Entrenamiento en Endourología, Hospital San Raffaele IRCCS, Milán, Italy
| | - S Proietti
- Centro Europeo de Entrenamiento en Endourología, Hospital San Raffaele IRCCS, Milán, Italy
| | - P M Mulawkar
- Servicio de Urología, Hospital Superespecializado de Tirthankar, Akola, India; Universidad de Edimburgo, Edimburgo, United Kingdom
| | - V De Stefano
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy
| | - A Cormio
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy
| | - J Y-C Teoh
- Clínica de Urología S.H. Ho, Servicio de Cirugía, Facultad de Medicina, Universidad China de Hong Kong, Hong Kong, China
| | - A B Galosi
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy
| | - B K Somani
- Servicio de Urología, Hospital Universitario de Southampton, NHS Trust, Southampton, United Kingdom
| | - E Emiliani
- Servicio de Urología, Fundación Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - V Gauhar
- Servicio de Urología, Hospital General Ng Teng Fong, Singapur, Singapore
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Huang J, Yang Y, Xie H, Fu Z, Zhu F, Xie L, Liu C. Vacuum-assisted dedusting lithotripsy in the treatment of kidney and proximal ureteral stones less than 3 cm in size. World J Urol 2023; 41:3097-3103. [PMID: 37698634 DOI: 10.1007/s00345-023-04595-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 08/23/2023] [Indexed: 09/13/2023] Open
Abstract
PURPOSE This study aimed to compare the outcomes of vacuum-assisted dedusting lithotripsy (VADL) using flexible vacuum-assisted ureteral access sheath (FV-UAS) versus traditional flexible ureteroscopic lithotripsy (fURL) in patients with kidney or proximal ureteral calculi less than 3 cm in size. METHODS A total of 371 patients who successfully underwent fURL treatment were enrolled. These patients were divided into traditional fURL group and VADL group. Outcomes of both groups were compared using 1:1 propensity score-matched analysis. Stratified analyses based on stone size and location were also conducted. RESULTS Finally, 103 well-matched patients in each group were identified. No septic shock or death occurred. The immediate stone-free rate (SFR) and follow-up SFR of VADL group were significantly higher (78.6% vs. 50.5%, p < 0.001; 94.2%% vs. 75.7%, p < 0.001). No difference was observed in postoperative fever rate (2.9% vs. 3.9%, p = 1.000) and duration of lithotripsy (37.7 ± 20.1 min vs. 40.3 ± 18.9 min, p = 0.235). For patients with stones ≤ 2 cm in size, the immediate SFR and follow-up SFR in VADL group were higher (86.7% vs. 60.6%, p < 0.001; 96.0% vs. 83.1%, p = 0.010). The same trend was observed in the 2-3 cm subgroup (57.1% vs. 28.1%, p = 0.023; 89.3% vs. 59.4%, p = 0.009). Although the in situ fragmentation strategy was employed more frequently in VADL group for lower pole stones, the SFR was still higher. Subgroup analyses did not reveal any significant differences in either infectious complications or duration of lithotripsy. CONCLUSION VADL technique can significantly improve the postoperative SFR for the patients with kidney or proximal ureteral stones less than 3 cm in size treated by flexible ureteroscope.
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Affiliation(s)
- Junkai Huang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Yu Yang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Haijie Xie
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Zhihao Fu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Fu Zhu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Linguo Xie
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China
| | - Chunyu Liu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, No.23 Pingjiang Road, Hexi District,, Tianjin, 300211, People's Republic of China.
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Shrestha A, Adhikari B, Panthier F, Baidya S, Gauhar V, Traxer O. Flexible ureteroscopy for lower pole calculus: is it still a challenge? World J Urol 2023; 41:3345-3353. [PMID: 37728745 DOI: 10.1007/s00345-023-04606-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 08/28/2023] [Indexed: 09/21/2023] Open
Abstract
PURPOSE Flexible ureteroscopy (fURS) is steadily gaining popularity in the management of renal calculi, including those located in the lower pole (LP). Due to difficulty in accessing to the LP of kidney in minority of cases with fURS and reports of lower stone-free rate (SFR), it is still considered as a challenge in selected cases. The purpose of the review was to analyze the various aspects of fURS for LP stones. METHODS An extensive review of the recent literature was done including different factors such as anatomy, preoperative stenting, stone size, flexible scopes, types of lasers, laser fibers, suction, relocation, stone-free rates, and complications. RESULTS The significance of various lower pole anatomical measurements remain a subject of debate and requires standardization. Recent improvements in fURS such as single-use digital scopes with better vision and flexibility, high power laser, thulium fiber laser, smaller laser fiber, and accessories have significantly contributed to make flexible ureteroscopy more effective and safer in the management of LP stone. The utilization of thulium fiber lasers in conjunction with various suction devices is being recognized and can significantly improve SFR. CONCLUSIONS With the significant advancement of various aspects of fURS, this treatment modality has shown remarkable efficacy and gaining widespread acceptance in management of LP kidney stones. These developments have made the fURS of LP stones less challenging.
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Affiliation(s)
- Anil Shrestha
- National Academy of Medical Sciences, Bir Hospital, Kathmandu, Nepal.
- B&B Hospital, Lalitpur, Nepal.
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Liu Y, Zhang H, Wen Z, Jiang Y, Huang J, Wang C, Chen C, Wang J, Bao E, Yang X. Efficacy and safety of minimally invasive percutaneous nephrolithotomy versus retrograde intrarenal surgery in the treatment of upper urinary tract stones (> 1 cm): a systematic review and meta-analysis of 18 randomized controlled trials. BMC Urol 2023; 23:171. [PMID: 37875837 PMCID: PMC10598962 DOI: 10.1186/s12894-023-01341-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/14/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND The advantages and disadvantages of retrograde intrarenal surgery (RIRS) and minimally invasive percutaneous nephrolithotomy (mPCNL) for treatment of upper urinary tract calculi have not been conclusively determined. METHODS In this meta-analysis, We comprehensively evaluated the performance of the two surgical approaches in treatment of upper urinary calculi. We searched the Pubmed, Embase, Cochrane and Web of science databases for randomized controlled trial (RCT) articles on RIRS and mPCNL upto December 2022. Data were extracted by two independent reviewers and subjected to the meta-analysis using the Stata 15.1 software (StataSE, USA). RESULTS A total of 18 eligible RCTs involving 1733 patients were included in this study. The meta-analysis revealed that mPCNL of 1-2 cm or 2-3 cm stones had a higher stone clearance rate (RR:1.08, 95%CI (1.03, 1.14), p = 0.002) and shorter operation time (WMD : -10.85 min, 95%CI (-16.76, -4.94), p<0.001). However, it was associated with more hospital stay time (WMD :1.01 day, 95%CI(0.53, 1.5), p<0.001), hemoglobin drops (WMD :0.27 g/dl, 95%CI (0.14, 0.41), p<0.001), blood transfusion rate (RR:5.04, 95%CI(1.62, 15.65), p = 0.005), pain visual analogue score (WMD:0.75, 95%CI (0.04, 1.46), p = 0.037), hospital costs (SMD :-0.97, 95%CI (-1.19, -0.76), p<0.001) and major complications (RR:1.89, 95%CI(1.01, 3.53), p = 0.045). CONCLUSION Therefore, in terms of surgical effects and operation time, mPCNL is superior to RIRS, but is inferior with regards to other perioperative parameters. These factors should be fully considered in clinical decision making.
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Affiliation(s)
- Yang Liu
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Huimin Zhang
- Department of Urology, Chengdu Xinhua Hospital Affiliated to North Sichuan Medical College, ChengDu, China
| | - Zhi Wen
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yu Jiang
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jing Huang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Chongjian Wang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Caixia Chen
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jiahao Wang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Erhao Bao
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xuesong Yang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.
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Gauhar V, Traxer O, Castellani D, Ragoori D, Heng CT, Chew BH, Somani BK, Bin Hamri S. A Feasibility Study on Clinical Utility, Efficacy and Limitations of 2 Types of Flexible and Navigable Suction Ureteral Access Sheaths in Retrograde Intrarenal Surgery for Renal Stones. Urology 2023; 178:173-179. [PMID: 37328010 DOI: 10.1016/j.urology.2023.05.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE To evaluate stone-free rate, device maneuverability, and complications after retrograde intrarenal surgery (RIRS) using 2 different sizes of flexible and navigable suction ureteral access sheaths (FANS). METHODS A retrospective analysis was performed for patients who underwent RIRS for renal stones of any size, number, and location between November 2021 and October 2022. Group 1 had FANS of 12 French. Group 2 had FANS of 10 French. Both sheaths have a Y-shaped suction channel. Tip of 10 French FANS has 20% more flexibility. Lithotripsy was achieved using either thulium fiber or high-power holmium lasers. A 5-point Likert scale was used to assess the performance of each sheath. RESULTS There were 16 patients in Group 1 and 15 patients in Group 2. Baseline demographics and stone parameters were similar. Four patients in Group 2 had the same session bilateral RIRS. Sheath insertion was successful in all renal units but one. Ten French FANS had a higher percentage of excellent scores for ease of use, manipulation, and visibility. Neither of the sheaths had an average or difficult rating for all evaluation scales. A fornix rupture requiring prolonged stenting occurred in group 2. All patients were discharged within 24 hours of surgery. One patient in each group visited the emergency department (analgesic treatment). There were no infectious complications. At 3 months, a computed tomography scan showed that the absence of residual fragments >2 mm was significantly higher in Group 2 (94.7% vs 68.8%, P = 0.01). CONCLUSION The 10 Fr FANS showed a higher stone-free rate. There was no infectious complication using both sheaths.
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Affiliation(s)
- Vineet Gauhar
- Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Olivier Traxer
- Department of Urology AP-HP, Sorbonne University, Tenon Hospital, Paris, France
| | - Daniele Castellani
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy.
| | - Deepak Ragoori
- Department of Urology, Asian Institute of Nephrology & Urology, Irram Manzil Colony, Hyderabad, Telangana, India
| | - Chin Tiong Heng
- Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Ben H Chew
- Department of Urology, University of British Columbia, Vancouver, Canada
| | - Bhaskar K Somani
- Department of Urology, University Hospitals Southampton, NHS Trust, Southampton, UK
| | - Saeed Bin Hamri
- Division of Urology, Department of Surgery, Ministry of the National Guard Health Affairs, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
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12
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Solano C, Chicaud M, Kutchukian S, Candela L, Corrales M, Panthier F, Doizi S, Traxer O. Optimizing Outcomes in Flexible Ureteroscopy: A Narrative Review of Suction Techniques. J Clin Med 2023; 12:jcm12082815. [PMID: 37109152 PMCID: PMC10146070 DOI: 10.3390/jcm12082815] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
OBJECTIVE The aim of this review is to summarize the existing suction systems in flexible ureteroscopy (fURS) and to evaluate their effectiveness and safety. METHODS A narrative review was performed using the Pubmed and Web of Science Core Collection (WoSCC) databases. Additionally, we conducted a search on the Twitter platform. Studies including suctions systems in fURS were included. Editorials, letters and studies reporting intervention with semirigid ureteroscopy, PCNL and mPCNL were excluded. RESULTS A total of 12 studies were included in this review. These studies comprised one in vitro study, one ex vivo study, one experimental study and eight cohort studies. The Pubmed and WoSCC searches identified three suction techniques (Irrigation/Suctioning system with control of pressure, suction ureteral access sheath (sUAS) and direct in scope suction (DISS)), and the Twitter search identified four of them. The overall results showed that suction is an effective and safe technique that improves stone-free rates, reduces operative time and limits complication rates after fURS. CONCLUSIONS The use of suctioning during common endourological procedures has been shown to improve safety and efficacy in several indications. However, randomized controlled trials are needed to confirm this.
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Affiliation(s)
- Catalina Solano
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
- Department of Endourology, Uroclin S.A.S., Medellín 50011, Colombia
| | - Marie Chicaud
- Department of Urology, Limoges University Hospital, 2 Avenue Martin Luther King, 87000 Limoges, France
| | - Stessy Kutchukian
- Department of Urology, Poitiers University Hospital, 2 Rue de la Milétrie, 86000 Poitiers, France
| | - Luigi Candela
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
- Unit of Urology, Division of Experimental Oncology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, 20100 Milan, Italy
| | - Mariela Corrales
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
| | - Frédéric Panthier
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
| | - Steeve Doizi
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
| | - Olivier Traxer
- GRC n 20, Groupe de Recherche Clinique sur la Lithiasis Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
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Kwok JL, De Coninck V, Pietropaolo A, Juliebø-Jones P, Ventimiglia E, Tailly T, Alexander Schmid F, Hunziker M, Poyet C, Traxer O, Eberli D, Keller EX. Instrumental dead space and proximal working channel connector design in flexible ureteroscopy: a new concept. Ther Adv Urol 2023; 15:17562872231179332. [PMID: 37377944 PMCID: PMC10291398 DOI: 10.1177/17562872231179332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/15/2023] [Indexed: 06/29/2023] Open
Abstract
Objective The objective of this study was to evaluate a new concept in flexible ureteroscopy: instrumental dead space (IDS). For this purpose, various proximal working channel connector designs, as well as the impact of ancillary devices occupying the working channel were evaluated in currently available flexible ureteroscopes. Design and methods IDS was defined as the volume of saline irrigation needed to inject at the proximal connector for delivery at the distal working channel tip. Because IDS is related to working channel diameter and length, proximal connector design, as well as occupation of working channel by ancillary devices, these parameters were also reviewed. Results IDS significantly varied between flexible ureteroscope models, ranging from 1.1 ml for the Pusen bare scopes, to 2.3 ml for Olympus scopes with their 4-way connector (p < 0.001). Proximal connector designs showed a high degree of variability in the number of available Luer locks, valves, seals, angles, and rotative characteristics. The measured length of the working channel of bare scopes ranged between 739 and 854 mm and significantly correlated with measured IDS (R2 = 0.82, p < 0.001). The coupling of scopes with an alternative ancillary proximal connector and the insertion of ancillary devices into the working channel significantly reduced IDS (mean IDS reduction of 0.1 to 0.5 ml; p < 0.001). Conclusions IDS appears as a new parameter that should be considered for future applications of flexible ureteroscopes. A low IDS seems desirable for several clinical applications. The main factors impacting IDS are working channel and proximal connector design, as well as ancillary devices inserted into the working channel. Future studies should clarify how reducing IDS may affect irrigation flow, intrarenal pressure, and direct in-scope suction, as well as evaluate the most desirable proximal connector design properties.
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Affiliation(s)
- Jia-Lun Kwok
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Urology, Tan Tock Seng Hospital, Singapore
| | - Vincent De Coninck
- Department of Urology, AZ Klina, Brasschaat, Belgium
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France
| | - Amelia Pietropaolo
- Department of Urology, University Hospital Southampton, Southampton, UK
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
| | - Patrick Juliebø-Jones
- Department of Urology, Haukeland University Hospital, Bergen, Norway
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France
| | - Thomas Tailly
- Department of Urology, University Hospital Ghent, Ghent, Belgium
- Endourology & Urolithiasis Working Group, Young Academic Urologists (YAU), Arnhem, The Netherlands
| | | | - Manuela Hunziker
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Cédric Poyet
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Olivier Traxer
- Sorbonne Université, GRC n°20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Hôpital Tenon, F-75020, Paris, France
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
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