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Zeng G, Zhu W, Somani B, Choong S, Straub M, Maroccolo MV, Kamal W, Ibrahim TAA, Cho A, Mazzon G, Chai CA, Ferretti S, Zhong W, Onal B, Mohamed O, Saulat S, Jurkiewicz B, Sezer A, Liu Y, Zeng T, Wang W, Gauhar V, Elderwy AA, Zaidi Z, Duvdevani M, Hamri SB, Kumar N, Kartalas-Goumas L, Gadzhiev N, Kraft K, Sepulveda F, Halinski A, Marietti S, Al-Anazi NAS, Santos LS, Vaddi CM, Jia J, Li J, Kuang X, Ye Z, Sarica K. International Alliance of Urolithiasis (IAU) guidelines on the management of pediatric urolithiasis. Urolithiasis 2024; 52:124. [PMID: 39230669 DOI: 10.1007/s00240-024-01621-z] [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: 07/17/2024] [Accepted: 08/17/2024] [Indexed: 09/05/2024]
Abstract
The aim of this study was to construct the sixth in a series of guidelines on the treatment of urolithiasis by the International Alliance of Urolithiasis (IAU) that by providing a clinical framework for the management of pediatric patients with urolithiasis based on the best available published literature. All recommendations were summarized following a systematic review and assessment of literature in the PubMed database from January 1952 to December 2023. Each generated recommendation was graded using a modified GRADE methodology. Recommendations are agreed upon by Panel Members following review and discussion of the evidence. Guideline recommendations were developed that addressed the following topics: etiology, risk factors, clinical presentation and symptoms, diagnosis, conservative management, surgical interventions, prevention, and follow-up. Similarities in the treatment of primary stone episodes between children and adults, incorporating conservative management and advancements in technology for less invasive stone removal, are evident. Additionally, preventive strategies aiming to reduce recurrence rates, such as ensuring sufficient fluid intake, establishing well-planned dietary adjustments, and selective use pharmacologic therapies will also result in highly successful outcomes in pediatric stone patients. Depending on the severity of metabolic disorders and also anatomical abnormalities, a careful and close follow-up program should inevitably be planned in each pediatric patient to limit the risk of future recurrence rates.
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Affiliation(s)
- Guohua Zeng
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Wei Zhu
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bhaskar Somani
- Department of Urology, University Hospital Southampton NHS Trust, Southampton, UK
| | - Simon Choong
- Institute of Urology, University College Hospitals of London, London, UK
| | - Michael Straub
- Department of Urology, Technical University Munich, Munich, Germany
| | | | - Wissam Kamal
- Department of Urology, King Fahd Hospital, Jeddah, Saudi Arabia
| | | | - Alexander Cho
- Great Ormond Street Hospital National Health Service Foundation Trust, London, UK
| | - Giorgio Mazzon
- Institute of Urology, University College Hospitals of London, London, UK
| | - Chu Ann Chai
- Department of Surgery Urology Unit, University Malaya, Kuala Lumpur, Malaysia
| | - Stefania Ferretti
- Department of Urology, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - Wen Zhong
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bulent Onal
- Department of Urology, Cerrahpasa School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Omar Mohamed
- Department of Urology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Sherjeel Saulat
- Department of Urology, Tabba Kidney Institute, Karachi, Pakistan
| | - Beata Jurkiewicz
- Paediatric Surgery Department, Warsaw Hospital for Children, Warsaw, Poland
| | - Ali Sezer
- Pediatric Urology Clinic, Konya City Hospital, Konya, Turkey
| | - Yang Liu
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Tao Zeng
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Wang
- Department of Urology, Shanghai Public Health Clinical Center, Center of GRADE, Fudan University, Shanghai, China
| | - Vineet Gauhar
- Department of Urology, Ng Teng Fong General Hospital, The National University Health System, Singapore, 609606, Singapore
| | - Ahmad Abdelaziz Elderwy
- Assiut Urology and Nephrology Hospital, Faculty of Medicine, Assiut University, Asyut, Egypt
| | - Zafar Zaidi
- The Indus Hospital and Health Network, Karachi, Pakistan
| | | | - 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
| | - Nitesh Kumar
- Ford Hospital and Research Centre, Patna, 800027, India
| | | | - Nariman Gadzhiev
- Saint Petersburg State University Hospital, St. Petersburg, Russian Federation
| | - Kate Kraft
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
| | - Fabio Sepulveda
- Department of Urology, Federal University of Bahia, State Women's Hospital of Bahia, Salvador, Bahia, Brazil
| | - Adam Halinski
- Department of Paediatric Urology, PMC "Wisniowa Clinic", Zielona Gora, Poland
| | - Sarah Marietti
- University of California - San Diego, 200 West Arbor Drive MC 7897, San Diego, CA, 92103, USA
| | | | - Luiz Sergio Santos
- Department of Urology, Federal University of Parana, Curitiba, Paraná, Brazil
| | - Chandra Mohan Vaddi
- Preeti Urology and Kidney Hospital, 307, Remedy Hospital Lane, Mig1, Kphb Colony, Kukatpally, Hyderabad, Telangana, 500072, India
| | - Jianye Jia
- Department of Urology, Peking University International Hospital, Beijing, China
| | - Jun Li
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xiaogen Kuang
- Department of Urology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kemal Sarica
- Department of Urology, Prof. Dr. Ilhan Varank Research and Training Hospital, Istanbul, Turkey.
- Department of Urology, Medical School, Biruni University, Istanbul, Turkey.
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Tanidir Y, Sekerci CA, Genc YE, Gokmen E, Arslan F, Yucel S, Tarcan T, Cam K. Endoscopic combined intrarenal surgery versus percutaneuos nephrolithotomy for complex pediatric stone disease: A comparative analysis of efficacy and safety. J Pediatr Urol 2024; 20:606.e1-606.e7. [PMID: 38871548 DOI: 10.1016/j.jpurol.2024.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
INTRODUCTION Decision-making for complex pediatric urinary system stone disease is still a challenge for pediatric urologists. The interest in supine percutaneous nephrolithotomy (PCNL) is increasing among centers to achieve high surgical success rates with less morbidity. Despite advanced retrograde intrarenal surgery armamentarium, percutaneous approaches remain the first-line surgical treatment modality for >2 cm and complex renal stones. There are no comparative studies yet in the literature for pediatric endoscopic combined intrarenal surgery (ECIRS) OBJECTIVE: In this study, we aimed to contribute to the literature by evaluating the safety and efficacy of ECIRS by comparing it with PCNL. STUDY DESIGN Patients under 18 years of age who underwent PCNL and ECIRS for urinary tract stone disease at our Pediatric Urology department between 2012 and 2024 were included. Preoperative (demographic characteristics, stone characteristics, biochemical parameters), perioperative (duration of surgery, number of accesses, lasing and fluoroscopy times, endoscopic and fluoroscopic stone-free rates) and postoperative (hospital stay, urinary tract infection, complication and radiological stone-free rates) parameters were retrospectively evaluated. RESULTS A total of 68 children [28 (41%) girls and 40 (59%) boys] aged 5 (0-17) years were included in the study. ECIRS was performed in 19 (28%), supine in 28 (41%) and prone PCNL in 21 (30%) patients. Age (p = 0.029), Guy's stone score (p < 0.001), S.T.O.N.E. (p < 0.001), and Seoul National University Renal Stone Complexity (S-ReSC) scores (p = 0.001) for preoperative parameters were found to be higher in ECIRS group over both PCNL methods (Summary Table). However, Clinical Research Office of the Endourological Society (CROES) score was seen lower for ECIRS group patients compared to other groups (p = 0.028). Surgery time (in favor of supine over prone PCNL), fluoroscopy time (in favor of ECIRS and Supine PCNL over Prone PCNL), preferred laser type (prone PCNL group was mostly performed with holmium laser, whereas other groups were balanced between Holmium and Thulium Fiber Laser) and exit strategy (the preferred exit strategy was DJ Stent in most of the ECIRS patients, whereas nephrostomy tube was used in some of the PCNL group) showed significant difference among the groups as perioperative parameters (p = 0.042, <0.001, <0.001, <0.001, respectively). Surgery time was lower for supine PCNL compared to prone PCNL. For postoperative parameters, stone-free rates, complication rates and urinary tract infections were similar between the 3 groups, while a difference was detected in terms of length of hospital stay in favor of ECIRS over both supine and prone PCNL (p = 0.006). DISCUSSION The current trial suggests that stone-free and complication rates of ECIRS and supine PCNL were similar in the pediatric complex stone patients. Although, the stones in the ECIRS group we found to be more complex. Also, ECIRS was superior to PCNL in terms of fluoroscopy exposure and hospital stay. CONCLUSION With the widespread use of new generation ureteral access sheaths and flexible ureterorenoscopes, ECIRS may have an important role in treatment of complex pediatric kidney stones.
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Affiliation(s)
- Yiloren Tanidir
- Department of Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Cagri Akin Sekerci
- Department of Urology, Division of Pediatric Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Yunus Emre Genc
- Department of Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Ersin Gokmen
- Department of Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Faruk Arslan
- Department of Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Selcuk Yucel
- Department of Urology, Division of Pediatric Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Tufan Tarcan
- Department of Urology, Division of Pediatric Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
| | - Kamil Cam
- Department of Urology, School of Medicine, Marmara University, Fevzi Çakmak Mah., Muhsin Yazicioglu Cad., No:10 Ust Kaynarca, Pendik, Istanbul, Turkey.
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Edison E, Mazzon G, Arumuham V, Choong S. Prevention of complications in endourological management of stones: What are the basic measures needed before, during, and after interventions? Asian J Urol 2024; 11:180-190. [PMID: 38680580 PMCID: PMC11053336 DOI: 10.1016/j.ajur.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 04/17/2023] [Indexed: 05/01/2024] Open
Abstract
Objective This narrative review aims to describe measures to minimise the risk of complications during percutaneous nephrolithotomy (PCNL), ureteroscopy, and retrograde intrarenal surgery. Methods A literature search was conducted from the PubMed/PMC database for papers published within the last 10 years (January 2012 to December 2022). Search terms included "ureteroscopy", "retrograde intrarenal surgery", "PCNL", "percutaneous nephrolithotomy", "complications", "sepsis", "infection", "bleed", "haemorrhage", and "hemorrhage". Key papers were identified and included meta-analyses, systematic reviews, guidelines, and primary research. The references of these papers were searched to identify any further relevant papers not included above. Results The evidence is assimilated with the opinions of the authors to provide recommendations. Best practice pathways for patient care in the pre-operative, intra-operative, and post-operative periods are described, including the identification and management of residual stones. Key complications (sepsis and stent issues) that are relevant for any endourological procedure are then be discussed. Operation-specific considerations are then explored. Key measures for PCNL include optimising access to minimise the chance of bleeding or visceral injury. The role of endoscopic combined intrarenal surgery in this regard is discussed. Key measures for ureteroscopy and retrograde intrarenal surgery include planning and technique to minimise the risk of ureteric injury. The role of anaesthetic assessment is discussed. The importance of specific comorbidities on each step of the pathway is highlighted as examples. Conclusion This review demonstrates that the principles of meticulous planning, interdisciplinary teamworking, and good operative technique can minimise the risk of complications in endourology.
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Affiliation(s)
- Eric Edison
- Department of Urology, University College Hospital London, London, UK
| | - Giorgio Mazzon
- Department of Urology, San Bassiano Hospital, Vicenza, Italy
| | - Vimoshan Arumuham
- Department of Urology, University College Hospital London, London, UK
| | - Simon Choong
- Department of Urology, University College Hospital London, London, UK
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Bouchalakis A, Somani BK, Lima E, Rassweiler-Seyfried MC, Mamoulakis C, Tokas T. Navigation systems and 3D imaging in percutaneous nephrolithotripsy: improving outcomes and safety. Curr Opin Urol 2024; 34:105-109. [PMID: 37889519 DOI: 10.1097/mou.0000000000001136] [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: 10/28/2023]
Abstract
PURPOSE OF REVIEW Percutaneous nephrolithotripsy (PCNL) is the first-line management option for large kidney stones (>2 cm). It remains, however, a demanding procedure with considerable morbidity. The present narrative review summarizes recent knowledge from original research studies investigating navigation systems/three-dimensional (3D) imaging in PCNL, particularly on publications during the past 12-18 months. RECENT FINDINGS Navigation systems and 3D imaging are primarily used for preoperative planning, with few intra-operative applications. Patient management and residents' training could benefit from their use. SUMMARY Navigation systems and 3D imaging technology have emerged as a potential game-changer in PCNL. Even though available evidence is currently scarce/inconclusive, the safety/efficacy of navigation systems and 3D dimensional imaging use in PCNL appears promising. This advanced technology offers precise anatomical mapping, improved visualization, and surgical accuracy. Enabling a comprehensive preoperative evaluation and improving guidance, navigation systems, and 3D imaging technology may improve the safety and efficacy of PCNL. With continuous technological evolution, it is expected that improvements/innovations will offer further aid in such demanding procedures. Familiarization and cost reduction are necessary for widespread application, while larger-scale prospective studies and well designed randomized controlled trials are still needed.
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Affiliation(s)
- Athanasios Bouchalakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Bhaskar Kumar Somani
- Department of Urology, University Hospital Southampton NHS Trust, Southampton, UK
| | - Estevao Lima
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho
- ICVS/3B's-PT, Government Associate Laboratory, Braga/Guimarães
- Deparment of Urology, Hospital of Braga, Braga, Portugal
| | | | - Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Theodoros Tokas
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
- Training and Research in Urological Surgery and Technology (T.R.U.S.T.)-Group, Hall in Tirol, Austria
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Qi Y, Xing H, Yang S, Peng Z, Chen Y, Qi S. Antegrade flexible ureteroscopy-assisted percutaneous nephrolithotomy for staghorn calculi: a prospective randomized controlled study. Urolithiasis 2024; 52:33. [PMID: 38340170 PMCID: PMC10858820 DOI: 10.1007/s00240-024-01528-9] [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: 09/30/2023] [Accepted: 01/03/2024] [Indexed: 02/12/2024]
Abstract
The aim is to compare the efficacy and safety between single percutaneous nephrolithotomy (sPNL) and antegrade flexible ureteroscopy-assisted percutaneous nephrolithotomy (aPNL) for the treatment of staghorn calculi. A prospective randomized controlled study was conducted at the Second Hospital of Tianjin Medical University. A total of 160 eligible patients were included, with 81 in the sPNL group and 79 in the aPNL group. The study first compared the overall differences between sPNL and aPNL. Then, the patients were divided into two subgroups: Group 1 (with less than 5 stone branches) and Group 2 (with 5 or more stone branches), and the differences between the two subgroups were further analyzed. The results showed that aPNL had a higher stone-free rate (SFR) and required fewer percutaneous tracts, with a shorter operation time compared to sPNL (P < 0.05). Moreover, aPNL significantly reduced the need for staged surgery, particularly in patients with 5 or more stone branches. Moreover, there were no significant differences in the changes of hemoglobin levels and the need for blood transfusions between the sPNL and aPNL groups, and the incidence of multiple tracts was lower in the aPNL group. The two groups showed comparable rates of perioperative complications. We concluded that aPNL resulted in a higher SFR for staghorn calculi, and required fewer multiple percutaneous tracts, reduced the need for staged surgery, and had a shorter operative time than PNL alone, especially for patients with 5 or more stone branches. Furthermore, aPNL did not increase the incidence of surgical complications.
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Affiliation(s)
- Yuanjiong Qi
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Haonan Xing
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Shushuai Yang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Zhongsheng Peng
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Yue Chen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.
| | - Shiyong Qi
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.
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Kallidonis P, Spinos T, Tatanis V, Skarimpa A, Vrettos T, Katsakiori P, Liatsikos E. Nonpapillary Prone Endoscopic Combined Intrarenal Surgery (ECIRS): Five-Year Experience and Outcomes from a High-Volume Center. J Clin Med 2024; 13:621. [PMID: 38276127 PMCID: PMC10816857 DOI: 10.3390/jcm13020621] [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: 12/23/2023] [Revised: 01/11/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
Endoscopic combined intrarenal surgery (ECIRS) provides simultaneous retrograde and percutaneous access to the upper urinary tract. The purpose of this study is to present revised data, tips and tricks, and technique modifications arising from our five-year experience with ECIRS. The data of 62 patients who underwent nonpapillary prone ECIRS from January 2019 to November 2023 were prospectively collected. All cases were performed in the prone position. Inclusion criteria were complex stone cases with stones in multiple calyces requiring either multiple accesses or multiple sessions to achieve stone-free status. Patients' mean age was 54.4 ± 12.39 years, while the mean stone size was 39.03 ± 13.93 mm. The mean operative time was 51.23 ± 17.75 min. Primary and final stone-free rates were 83.8% and 90.3%, respectively. In total, nine patients presented with postoperative complications, which were all Grade II ones. The holmium-YAG laser type during retrograde lithotripsy was associated with significantly shorter operative times compared to the thulium fiber laser. Nonpapillary prone ECIRS is a feasible, safe, and efficient approach for patients with specific stone and anatomy characteristics. The implementation of more, higher-evidence studies is of utmost importance so that safer conclusions can be drawn.
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Affiliation(s)
- Panagiotis Kallidonis
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
| | - Theodoros Spinos
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
| | - Vasileios Tatanis
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
| | - Anna Skarimpa
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
| | - Theofanis Vrettos
- Department of Anesthesiology and ICU, University of Patras, 26504 Patras, Greece;
| | - Paraskevi Katsakiori
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
| | - Evangelos Liatsikos
- Department of Urology, University of Patras Hospital, 26504 Patras, Greece; (T.S.); (V.T.); (A.S.); (P.K.); (E.L.)
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria
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Ito H, Sakamaki K, Fukuda T, Yamamichi F, Watanabe T, Tabei T, Inoue T, Matsuzaki J, Kobayashi K. Models to predict the surgical outcome of mini-ECIRS (endoscopic combined intrarenal surgery) for renal and/or ureteral stones. Sci Rep 2023; 13:22848. [PMID: 38129560 PMCID: PMC10739798 DOI: 10.1038/s41598-023-50022-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
To establish a safer and more efficient treatment strategy with mini-endoscopic combined intrarenal surgery (ECIRS), the present study aimed to develop models to predict the outcomes of mini-ECIRS in patients with renal and/or ureteral stones. We retrospectively analysed consecutive patients with renal and/or ureteral stones who underwent mini-ECIRS at three Japanese tertiary institutions. Final treatment outcome was evaluated by CT imaging at 1 month postoperatively and stone free (SF) was defined as completely no residual stone or residual stone fragments ≤ 2 mm. Three prognostic models (multiple logistic regression, classification tree analysis, and machine learning-based random forest) were developed to predict surgical outcomes using preoperative clinical factors. Clinical data from 1432 ECIRS were pooled from a database registered at three institutions, and 996 single sessions of mini-ECIRS were analysed in this study. The overall SF rate was 62.3%. The multiple logistic regression model consisted of stone burden (P < 0.001), number of involved calyces (P < 0.001), nephrostomy prior to mini-ECIRS (P = 0.091), and ECOG-PS (P = 0.110), wherein the area under the curve (AUC) was 70.7%. The classification tree analysis consisted of the number of involved calyces with an AUC of 61.7%. The random forest model showed that the top predictive variable was the number of calyces involved, with an AUC of 91.9%. Internal validation revealed that the AUCs for the multiple logistic regression model, classification tree analysis and random forest models were 70.4, 69.6 and 85.9%, respectively. The number of involved calyces, and a smaller stone burden implied a SF outcome. The machine learning-based model showed remarkably high accuracy and may be a promising tool for physicians and patients to obtain proper consent, avoid inefficient surgery, and decide preoperatively on the most efficient treatment strategies, including staged mini-ECIRS.
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Affiliation(s)
- Hiroki Ito
- Department of Urology, Yokosuka Kyosai Hospital, Yokosuka, Japan.
- Department of Urology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Kentaro Sakamaki
- Faculty of Health Data Science, Juntendo University, Tokyo, Japan
| | - Tetsuo Fukuda
- Department of Urology, Ohguchi East General Hospital, Yokohama, Japan
| | | | | | - Tadashi Tabei
- Department of Urology, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Takaaki Inoue
- Department of Urology, Hara Genitourinary Hospital, Kobe, Japan
| | - Junichi Matsuzaki
- Department of Urology, Ohguchi East General Hospital, Yokohama, Japan
| | - Kazuki Kobayashi
- Department of Urology, Yokosuka Kyosai Hospital, Yokosuka, Japan
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Moon YJ, Cho KS, Jung DC, Chung DY, Lee JY. The Consecutive 200 Cases of Endoscopic-Combined Intrarenal Surgery: Comparison between Standard and Miniature Surgeries. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1971. [PMID: 38004020 PMCID: PMC10673269 DOI: 10.3390/medicina59111971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023]
Abstract
Background and Objectives: Percutaneous nephrolithotomy (PCNL) is still the gold-standard treatment for large and/or complex renal stones. Endoscopic combined intrarenal surgery (ECIRS) was developed with the goal of minimizing the number of access tracts of PCNL while simultaneously improving the one-step stone-free rate (SFR). The aim of this study was to share the experience of the consecutive 200 cases of ECIRS in one institute and analyze surgical outcomes of mini-ECIRS and standard ECIRS. Materials and Methods: We performed ECIRS for 200 adult patients between July 2017 and January 2020. An ECIRS was performed with the patient under general anesthesia in the intermediate-supine position. Surgeries were finished using a tubeless technique with a simple ureteral stent insertion. Results: There were significant differences in the mean maximal stone length (MSL), the variation coefficient of stone density (VCSD), the linear calculus density (LCD), the Seoul National University Renal Stone Complexity (S-ReSC), and the modified S-ReSC scores in stone characteristics, and estimated blood loss (EBL) and operation time in peri-operative outcomes between conventional and mini-ECIRS. After propensity-score matching, there was only a difference in EBL between the two groups. In logistic regression models, MSL [odds ratio (OR) 0.953; 95% confidence interval (CI) 0.926-0.979; p < 0.001], LCD (OR 4.702; 95% CI 1.613-18.655; p = 0.013) were significant factors for the success rate after ECIRS. Conclusions: In patients who underwent a mini-ECIRS, the stones were relatively smaller and less complex, and the operation time was shorter. However, if the size of stones was similar, there was no difference in the success rate, but EBL was lower in mini-ECIRS than in standard surgery.
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Affiliation(s)
- Young Joon Moon
- Department of Urology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu 41944, Republic of Korea;
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Kang Su Cho
- Department of Urology, Prostate Cancer Center, Gangnam Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul 06273, Republic of Korea;
| | - Dae Chul Jung
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul 03722, Republic of Korea;
| | - Doo Yong Chung
- Department of Urology, Inha University College of Medicine, Incheon 22212, Republic of Korea;
| | - Joo Yong Lee
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Center of Evidence Based Medicine, Institute of Convergence Science, Yonsei University, Seoul 03722, Republic of Korea
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9
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Estrade V, Meria P, Almeras C. 2022 Recommendations of the AFU Lithiasis Committee: Combined approach for the management of kidney and ureteral stones (Endoscopic Combined IntraRenal Surgery, ECIRS). Prog Urol 2023; 33:871-874. [PMID: 37918986 DOI: 10.1016/j.purol.2023.08.009] [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: 06/30/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 11/04/2023]
Abstract
The primary objective of the combined approach is to limit the number of percutaneous access tracts for the treatment of staghorn, or complex kidney stones by simultaneous percutaneous antegrade and retrograde ureteroscopy. The other indication is the simultaneous presence of several kidney and ureteral stones or of an impacted pelvic stone. The combination of the two techniques may increase the stone-free rate and decrease the retreatment rate of complex stones compared with percutaneous nephrolithotomy alone. The patient is usually in the modified supine position. METHODOLOGY: These recommendations were developed using two methods: the Clinical Practice Recommendation (CPR) method and the ADAPTE method, depending on whether the question was considered in the European Association of Urology (EAU) recommendations (https://uroweb.org/guidelines/urolithiasis) [EAU Guidelines on urolithiasis. 2022] and their adaptability to the French context.
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Affiliation(s)
- V Estrade
- Department of Urology, Bordeaux Pellegrin University Hospital, Bordeaux, France
| | - P Meria
- Service d'Urologie, Hôpital Saint-Louis, AP-HP-Centre, Université Paris Cité, Paris, France
| | - C Almeras
- UroSud, Clinique La Croix du Sud, Quint-Fonsegrives, France.
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10
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Qi Y, Lin F, Li B, Han S, Yu W, Rao T, Zhou X, Ning J, Xiong Z, Cheng F. Classification and clinical significance of the posterior group of renal calyces. Medicine (Baltimore) 2023; 102:e34443. [PMID: 37543815 PMCID: PMC10402955 DOI: 10.1097/md.0000000000034443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
Abstract
To study the anatomical orientation of the posterior group of calyces based on reconstructed images of computerized tomography urography (CTU) and provide a novel classification with its clinical significance. Clinical data of a total of 1321 patients, who underwent CTU examination in our hospital were retrospectively analyzed. Among these, a total of 2642 3-dimensional reconstructed images of CTU scans were considered in this study. Based on the morphology of the renal calyces and the influence on the establishment of surgical access, the posterior group renal calyces are classified into 3 major types including pot-belly type, classically branched and elongated branched. The classically branched type is further classified into 3 sub-types: a, b and c, based on the association of minor calyces of the posterior group to the major calyces. Type a is derived from 1 group of major calyces only, type b is derived from 2 groups of major calyces simultaneously, and type c is derived from 3 groups of major calyces simultaneously. Statistical findings revealed that all kidneys possess posterior group calyces. The percentage of occurrence of pot-belly type, classically branched and elongated branched is 8.06%, 73.13%, and 18.81%, respectively. The anatomical typing of the classical branching type occurred in 19.36%, 68.17%, and 12.47% for types a, b, and c, respectively. In this study, the posterior group calyces were found to be present across all patients. The posterior group calyces were highest in the classical branching type, of which anatomical typing was highest in type b. The typing of the posterior group of calyces could provide an anatomical basis for percutaneous nephrolithotomy (PCNL) puncture from the posterior group.
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Affiliation(s)
- Yucheng Qi
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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11
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Gauhar V, Traxer O, Fuligni D, Brocca C, Galosi AB, Teoh JYC, Castellani D. Evolution and current applications of endoscopic combined intrarenal surgery: a scoping review from back to the future. Curr Opin Urol 2023; 33:324-332. [PMID: 37158647 DOI: 10.1097/mou.0000000000001106] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
PURPOSE OF REVIEW To systematically review the evolution of techniques, technology, clinical utility, limitations and possible future applications of endoscopic combined intrarenal surgery (ECIRS) for ureteral and kidney stones. RECENT FINDINGS The literature search was performed on 18th January 2023 using PubMed, EMBASE and Scopus. 35 studies were included. Among them, six were reviews. Since its introduction in 2008, ECIRS has evolved and improved. ECIRS can be performed in different patient position, such as modified supine Valdivia position by Galdakao, prone position with split-leg and supine position with good outcomes. Instrument miniaturization has also been introduced in ECIRS making it doable in an ambulatory setting. ECIRS showed shorter operative time, lower complication rate, and retreatment compared with conventional PCNL. Operative outcomes of mini-ECIRS are better than mini-PCNL alone. ECIRS also showed good outcomes in impacted upper ureteric stones. Recently, some studies have explored the robotic-assisted kidney puncture in ECIRS that avoided multitrack surgery, especially in anomalous kidney and staghorn stones. SUMMARY ECIRS is ready for primetime in endourology and can be considered the next gold-standard for a personalized stone approach in complex kidney stones.
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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
| | - Demetra Fuligni
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, School of Urology, Faculty of Medicine Università Politecnica delle Marche, Ancona, Italy
| | - Carlo Brocca
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, School of Urology, Faculty of Medicine Università Politecnica delle Marche, Ancona, Italy
| | - Andrea Bendetto Galosi
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, School of Urology, Faculty of Medicine Università Politecnica delle Marche, Ancona, Italy
| | - Jeremy Yuen-Chun Teoh
- S.H. Ho Urology Centre, Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Daniele Castellani
- Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, School of Urology, Faculty of Medicine Università Politecnica delle Marche, Ancona, Italy
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Dreger NM, Stapelmann D, Rebacz P, Roth S, Brandt AS, von Rundstedt FC, Degener S. Hydrostatic pressure of the renal pelvis as a radiation-free alternative to fluoroscopic nephrostogram following percutaneous nephrolithotomy. BMC Urol 2023; 23:46. [PMID: 36978025 PMCID: PMC10052835 DOI: 10.1186/s12894-023-01225-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Abstract
Background
We evaluated the hydrostatic pressure of the renal pelvis (RPP) as a radiation-free alternative to fluoroscopic nephrostogram to assess ureteral patency after percutaneous nephrolithotomy (PCNL).
Methods
Retrospective non-inferiority study analyzing 248 PCNL-patients (86 female (35%) and 162 males (65%)) between 2007 and 2015. Postoperatively, RPP was measured using a central venous pressure manometer in cmH2O. The primary endpoint was to assess RPP depending on the patency of the ureter and the nephrostomy tube removal. Secondary, the upper limit of normal RPP of $$\le$$
≤
20 cmH2O was assessed as an indicator of an unobstructed patency.
Results
The median procedure duration was 141 min (112–171.5) with a stone free rate of 82% (n = 202). RPP was significantly higher in patients with obstructive nephrostogram with 25.0 mmH2O (21.0–32.0) versus 20.0 mmH2O (16.0–24.0; p < 0.001). The pressure was lower in successful nephrostomy removal with 18 cmH2O (15–21) versus 23 cmH2O (20–29) in the leakage group (p < 0.001). The analysis of a cut-off of $$\le$$
≤
20 cmH2O showed a sensitivity of 76.9% (95% CI [60.7%; 88.9%]) and a specificity of 61.5% (95% CI [54.6%; 68.2%]). The negative predictive value was 93.4% (95% CI: [87.9%; 97.0%]) and the positive predictive value 27.3% (95% CI [19.2%; 36.6%]). The accuracy of the model showed an AUC = 0.795 (95% CI [0.668; 0.862]).
Conclusion
The hydrostatic RPP seems to allow a bedside evaluation of ureteral patency after PCNL.
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Mazzon G, Choong S, Celia A. Stone-scoring systems for predicting complications in percutaneous nephrolithotomy: A systematic review of the literature. Asian J Urol 2023. [PMID: 37538152 PMCID: PMC10394284 DOI: 10.1016/j.ajur.2023.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Objective Percutaneous nephrolithotomy is a treatment of choice for larger stones of the upper urinary tract. Currently, several nephrolithometric nomograms for prediction of post-operative surgical outcomes have been proposed, although uncertainties still exist regarding their roles in the estimation of complications. Methods We conducted a systematic review on PubMed and Web of Sciences databases including English studies with at least 100 cases and published between January 2010 and December 2021. We identified original articles evaluating correlations between the Guy's stone score, the stone size (S), tract length (T), obstruction (O), number of involved calices (N), and essence or stone density (E) (S.T.O.N.E.), Clinical Research Office of the Endourological Society (CROES), and Seoul National University Renal Stone Complexity (S-ReSC) scores and post-operative complications in adult patients. We also included newly designed nomograms for prediction of specific complications. Results After an initial search of 549 abstracts, we finally included a total of 18 papers. Of them, 11 investigated traditional nephrolithometric nomograms, while seven newly designed nomograms were used to predict specific complications. Overall, 7316 patients have been involved. In total, 14 out of 18 papers are derived from retrospective single-center studies. Guy's stone score obtained correlation with complications in five, S.T.O.N.E. nephrolithometry score in four, while CROES score and S-ReSC score in three and two, respectively. None of the studies investigated minimally invasive percutaneous nephrolithotomy (PCNL) and all cases have been conducted in prone position. Considering newly designed nomograms, none of them is currently externally validated; five of them predict post-operative infections; the remaining two have been designed for thromboembolic events and urinary leakage. Conclusion This review presents all nomograms currently available in the PCNL field and highlights a certain number of concerns. Published data have appeared contradictory; more recent tools for prediction of post-operative complications are frequently based on small retrospective cohorts and lack external validations. Heterogeneity among studies has also been noticed. More rigorous validations are advisable in the future, involving larger prospective patients' series and with the comparison of different tools.
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