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O'Meara S, Cunnane EM, Croghan SM, Cunnane CV, Walsh MT, O'Brien FJ, Davis NF. Mechanical characteristics of the ureter and clinical implications. Nat Rev Urol 2024; 21:197-213. [PMID: 38102385 DOI: 10.1038/s41585-023-00831-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2023] [Indexed: 12/17/2023]
Abstract
The ureteric wall is a complex multi-layered structure. The ureter shows variation in passive mechanical properties, histological morphology and insertion forces along the anatomical length. Ureter mechanical properties also vary depending on the direction of tensile testing and the anatomical region tested. Compliance is greatest in the proximal ureter and lower in the distal ureter, which contributes to the role of the ureter as a high-resistance sphincter. Similar to other human tissues, the ureteric wall remodels with age, resulting in changes to the mechanical properties. The passive mechanical properties of the ureter vary between species, and variation in tissue storage and testing methods limits comparison across some studies. Knowledge of the morphological and mechanical properties of the ureteric wall can aid in understanding urine transport and safety thresholds in surgical techniques. Indeed, various factors alter the forces required to insert access sheaths or scopes into the ureter, including sheath diameter, safety wires and medications. Future studies on human ureteric tissue both in vivo and ex vivo are required to understand the mechanical properties of the ureter and how forces influence these properties. Testing of instrument insertion forces in humans with a focus on defining safe upper limits and techniques to reduce trauma are also needed. Last, evaluation of dilatation limits in the mid and proximal ureter and clarification of tensile strength anisotropy in human specimens are necessary.
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Affiliation(s)
- Sorcha O'Meara
- Department of Surgery, Royal College of Surgeons of Ireland (RCSI), Dublin, Ireland.
- Department of Urology, Blackrock Clinic, Blackrock, Co., Dublin, Ireland.
| | - Eoghan M Cunnane
- Biomaterials Cluster, Bernal Institute, University of Limerick, Limerick, Ireland
- School of Engineering, University of Limerick, Limerick, Ireland
| | - Stefanie M Croghan
- Department of Surgery, Royal College of Surgeons of Ireland (RCSI), Dublin, Ireland
- Department of Urology, Blackrock Clinic, Blackrock, Co., Dublin, Ireland
| | - Connor V Cunnane
- Biomaterials Cluster, Bernal Institute, University of Limerick, Limerick, Ireland
- School of Engineering, University of Limerick, Limerick, Ireland
| | - Michael T Walsh
- Biomaterials Cluster, Bernal Institute, University of Limerick, Limerick, Ireland
- School of Engineering, University of Limerick, Limerick, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Niall F Davis
- Department of Surgery, Royal College of Surgeons of Ireland (RCSI), Dublin, Ireland
- Department of Urology, Blackrock Clinic, Blackrock, Co., Dublin, Ireland
- Department of Urology and Transplant Surgery, Beaumont Hospital, Dublin, Ireland
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Zhong MZ, Huang WN, Huang GX, Zhang EP, Gan L. Long-term results of extended Boari flap technique for management of complete ureteral avulsion: A case report. World J Clin Cases 2022; 10:12610-12616. [PMID: 36579100 PMCID: PMC9791534 DOI: 10.12998/wjcc.v10.i34.12610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/15/2022] [Accepted: 11/07/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Ureteroscopy is well-established as a primary treatment modality for urolithiasis. Ureteral avulsion, particularly complete or full-length avulsion with a resultant long segment of the ureter left attached to the ureteroscope, is a rare but devastating complication of the procedure. Management of this complication is challenging. Moreover, general consensus regarding the optimal management is undetermined. We report our experience of managing a complete ureteral avulsion case via an extended Boari flap technique with long-term results.
CASE SUMMARY A 41-year-old female patient subjected to complete ureteral avulsion caused by ureteroscopy was referred to our hospital. A modified, extended Boari flap technique was successfully performed to repair the full-length ureteral defect. Maximal mobilization of the bladder and affected kidney followed by psoas hitch and downward nephropexy maximized the probability of a tension-free anastomosis. Meticulous blood supply preservation to the flap also contributed to the success. During the 4-year study period, no complications except for a mild urinary frequency and a slightly lower maximum urinary flow rate were reported. The patient was satisfied with the surgical outcomes.
CONCLUSION The extended Boari flap procedure is a feasible and preferred technique to manage complete ureteral avulsion, particularly in emergencies.
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Affiliation(s)
- Ming-Zhu Zhong
- Department of Urology, Shenzhen Baoan Shiyan People's Hospital, Shenzhen 518108, Guangdong Province, China
| | - Wei-Na Huang
- Department of Urology, Shenzhen Baoan Shiyan People's Hospital, Shenzhen 518108, Guangdong Province, China
| | - Gui-Xiao Huang
- Department of Urology, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518005, Guangdong Province, China
| | - En-Pu Zhang
- Department of Urology, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518005, Guangdong Province, China
| | - Lu Gan
- Department of Urology, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518005, Guangdong Province, China
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Damaskos C, Garmpis N, Nikolettos K, Patsouras A, Schizas D, Garmpi A, Georgakopoulou VE, Syllaios A, Dimitroulis D. Comment on renal autotransplantation: A final option to preserve the kidney after an iatrogenic ureteral injury. Arch Ital Urol Androl 2021; 93:497-498. [PMID: 34933543 DOI: 10.4081/aiua.2021.4.497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/12/2021] [Indexed: 11/23/2022] Open
Abstract
To the Editor, Autologous Renal Transplantation (ART) since firstly described in 1963 by Hardy, has been used in various cases. There are various reasons for the transplantation such as iatrogenic ureteral damage, chronic kidney pain, unresectable renal tumors or renovascular diseases. Indications concerning the suitable patients for this kind of procedure are gradually increasing. Nevertheless, each case is unique, and the treatment must be personalized [...].
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Affiliation(s)
- Christos Damaskos
- Renal Transplantation Unit, Laiko General Hospital, Athens; N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens.
| | - Nikolaos Garmpis
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens and Second Department of Propedeutic Surgery, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens.
| | - Konstantinos Nikolettos
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis.
| | - Alexandros Patsouras
- N.S. Christeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens.
| | - Dimitrios Schizas
- First Department of Surgery, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens.
| | - Anna Garmpi
- First Department of Propedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens.
| | | | - Athanasios Syllaios
- First Department of Surgery, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens.
| | - Dimitrios Dimitroulis
- Second Department of Propedeutic Surgery, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens.
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Omar M, Garabawey ME, Sayedahmed K, Aboutaleb H, Noureldin Y. The utility of instruments and disposables during endourologic practice among Egyptian urologists. JOURNAL OF CLINICAL UROLOGY 2021. [DOI: 10.1177/20514158211024070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: We aimed to investigate the prevalence of utilization of different endourological instruments and disposables among Egyptian urologists and to see how availability could affect the deviation from the universal standards that might result in reduced patient safety. Patients and method: We surveyed members of the Egyptian Urological Association by a questionnaire evaluating the importance of different instruments and disposables used during ureteroscopy and percutaneous nephrolithotomy. All responses were collected by a commercially available Internet-based survey host ( www.surveymonkey.com ) over 8 weeks. Results: One hundred and fifty-two responses were received. For ureteroscopy, the most mandatory instruments and disposables included the C-arm device (83%), Dormia basket (61%), ureteral stone forceps (58%), pneumatic lithotripter (50%), and regular PTFE guide wire (49%). The instruments and disposables described as optional included 4.5 Fr ureteroscope (74%), flexible ureteroscope (70%), and hydrophilic guidewire (67%). For percutaneous nephrolithotomy, the most mandatory instruments and disposables were pneumatic lithotripter (78%), Alken metal dilator (75%), fascial dilator (45%), and regular PTFE guidewire (42%); while instruments and disposables described as optional included flexible cystoscope (70%), hydrophilic guidewire (67%), balloon dilator (57%), and laser machine (52%). Conclusion: The prevalence of the utilization of newly introduced instruments and disposables is low among Egyptian urologists.
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Affiliation(s)
- Mohamed Omar
- Department of Urology, Menoufia University, Egypt
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Wu Y, Li C, Lu Y, Zhang J, Mei W, Wang S. Ureteroscopic lithotripsy combined with paravertebral block anesthesia or general anesthesia: A propensity matched case-control study. Asian J Surg 2021; 44:1370-1375. [PMID: 33781683 DOI: 10.1016/j.asjsur.2021.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 03/03/2021] [Accepted: 03/09/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND To evaluate the safety, efficacy and cost of paravertebral block anesthesia for ureteral stones patients undergoing ureteroscopic lithotripsy. METHODS Four hundred and eighty-two patients who underwent ureteroscopy for unilateral ureteral stones were incorporated into our retrospective study. A propensity-matched comparison in patients with paravertebral nerve block anesthesia (PVB) group and general anesthesia (GA) group was performed. Intraoperative hemodynamic parameters, operative time, visual analog scale for pain, stone-free rate, anesthetic cost and postoperative hospital stay were compared between the two groups. RESULTS Sixty-one GA cases were propensity matched to 61 PVB cases. In the PVB group, all the procedures were completed successfully without anesthesia conversion. Significantly less intraoperative severe hypotensive (P = 0.002) and arrhythmia (P < 0.001) episodes in PVB group. There were no significant differences in operative time (p = 0.702), initial stone-free rate (p = 0.686), and total stone-free rate (p = 0.794) between the two groups. The PVB group had lower postoperative pain and prolonged analgesia (p = 0.007). The postoperative hospital stay in the PVB group was significantly shorter (3.20 ± 0.73 vs 3.84 ± 1.32 d, p = 0.001). And the cost of anesthesia was lower in the PVB group (195.47 ± 13.01 vs 396.31 ± 36.45 US dollars, p < 0.001). CONCLUSION Under PVB anesthesia, URS can be successfully completed without anesthetic transformation, and its efficacy and safety have been demonstrated. When economic aspects are taken into consideration, PVB seems to be a more economical and effective anesthetic method of URS.
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Affiliation(s)
- Yue Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cong Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuchao Lu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaqiao Zhang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Mei
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Sert İÜ, Aydın A. Case report series: management of complete ureteral avulsion with review of the relevant literature. AFRICAN JOURNAL OF UROLOGY 2020. [DOI: 10.1186/s12301-020-00047-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Endoscopic operations and ureteroscopy have become the first choice for ureteral calculi and ureter-related operations. The ratios of the complications, which are mostly iatrogenic, range between 9 and 11%. Total ureteral avulsion during URS is quite rare with a prevalence of 0–0.3%. We present three total ureteral avulsions we experienced in our clinic during the last 2 years and their treatment.
Case presentation
During the last 2 years, we experienced three total ureteral avulsions: one of these occurred in our clinic and the other two occurred in an external center and were referred to us. In two cases, the omental flap was rotated after ureteral reimplantation and the ureter was completely wrapped inside the omental flap. In the third case, boari flap was formed from the bladder. Due to the presence of extrarenal wide renal pelvis, anastomosis was made with boari flap after a y–v flap was rotated on the renal pelvis. D-J stents of the patients were removed at the end of 3 months. Although there was mild hydronephrosis, parenchymal thinning and a significant decrease in functions were not observed. Ureteral avulsion of the patients was successfully managed without the need for nephrectomy.
Conclusion
Ureteral avulsion management is an extremely difficult condition for both the surgeon and the patient. So, the most important thing is to prevent ureteral avulsion. Ureteroplasty and omental flap treatment are applicable methods with quite successful results for complete ureteral avulsions.
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Shekar PA, Kochhar G, Reddy D, Dumra A. Management of ureteric avulsion during ureteroscopy: a systematic review and our experience. AFRICAN JOURNAL OF UROLOGY 2020. [DOI: 10.1186/s12301-020-00078-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Ureteric avulsion is a disastrous intraoperative complication that can happen to any urologist during a common endoscopic procedure like ureteroscopy. The aim of this study is to evaluate the various management options of ureteric avulsion during ureteroscopy and also report our relevant experience in this topic.
Results
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses of existing literature in English language was used in the period 1967–2019 with a literature search in PubMed, Cochrane Library and Google Scholar. Forty-three patients in twenty-three articles who had undergone management of ureteric avulsion during ureteroscopy were identified for review. There were 15 proximal, 19 two-point (“scabbard”) and 9 distal avulsions. All distal avulsions were managed successfully with ureteroneocystostomies or Boari flaps. Boari flaps and ureteropyelostomy with ureterovesicostomy were the common procedures used for proximal avulsions. Proximal avulsions had more varied outcomes with salvage rates of 86.9%. Procedures which incorporated the avulsed distal ureter for reconstruction had poor results.
Conclusion
Management of ureteric avulsion during ureteroscopy is a surgical challenge. While management of distal avulsions is straightforward in the form of ureteroneocystostomies and has uniformly good results in most hands, proximal avulsions need expertise in management and choosing ideal reconstruction, with variable results following reconstruction. Extended Boari flaps, ileal ureter and autotransplantation are good options for proximal avulsions. Reconstruction using the distal avascular ureter should be avoided for better long-term results.
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Ureteral Avulsion during Semirigid Ureteroscopy: A Single-Centre Experience. Surg Res Pract 2020; 2020:3198689. [PMID: 33134480 PMCID: PMC7593724 DOI: 10.1155/2020/3198689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/02/2020] [Accepted: 09/29/2020] [Indexed: 12/23/2022] Open
Abstract
Aims The aim of the study is to present our experience with the management of ureteral avulsions following semirigid ureteroscopy for ureteral stones. This is one of the largest series reported so far. Methods and Materials It is a retrospective and observational study done at Sri Ramachandra Institute of Higher Education and Research over the last 18 years. Results There were seven cases of ureteral avulsion following semirigid ureteroscopy. All patients were males with a mean age of 35.7 years. All had impacted stones, with proximal ureteric location in 6 patients and distal ureteric location in 1 patient. Five cases had two-point avulsions with loss of entire ureter. Two cases had one-point avulsion: one distal ureteric and the other mid-ureteric. Of the five cases with whole length ureteral avulsion, four were managed by classical ileal replacement of ureter and the the fifth case was managed by ileal replacement of ureter by the Yang–Monti technique. Of the two cases with one-point avulsion, one was managed by uretero-neocystostomy and the other by uretero-ureterostomy. All the patients had successful outcome. Conclusions Even though rare, ureteral avulsion can potentially happen especially when dealing with impacted ureteric stones. Being conscious of the possible occurrence of this serious complication during any difficult ureteroscopy and exercising utmost care during the procedure are important preventive measures. However, this catastrophe can be successfully managed by either immediate definitive repair or in a staged manner.
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Ragonese M, Foschi N, Pinto F, Di Gianfrancesco L, Bassi P, Racioppi M. Immediate ileal ureter replacement for ureteral avulsion during ureterescopy. IJU Case Rep 2020; 3:241-243. [PMID: 33163914 PMCID: PMC7609185 DOI: 10.1002/iju5.12202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 07/06/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Complete ureteral avulsion represents a rare and fearsome complication of ureteroscopy, reported in less than 1% of cases. In literature there are few reports and different options are presented for its treatment. We present a case of a ureteral avulsion managed with ileal ureter replacement. CASE PRESENTATION A 67-year-old man with a left proximal ureter stone was treated at our department with ureteroscopy. During retrieval of the instrument a complete ureteral avulsion was discovered, with a so-called "scabbard lesion". We decided to proceed with immediate laparotomy and we performed a ileal ureter replacement. CONCLUSION Ureteral avulsion is a rare complication but must be known as a possible complication in high volume center. There is no standard definition regarding its treatment, and in our experience immediate treatment with ileal ureter replacement proved to be safe and effective without any changes in renal function.
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Affiliation(s)
- Mauro Ragonese
- Urology ClinicA. Gemelli HospitalCatholic University of the Sacred HeartRomeItaly
| | - Nazario Foschi
- Urology ClinicA. Gemelli HospitalCatholic University of the Sacred HeartRomeItaly
| | - Francesco Pinto
- Urology ClinicA. Gemelli HospitalCatholic University of the Sacred HeartRomeItaly
| | | | - Pierfrancesco Bassi
- Urology ClinicA. Gemelli HospitalCatholic University of the Sacred HeartRomeItaly
| | - Marco Racioppi
- Urology ClinicA. Gemelli HospitalCatholic University of the Sacred HeartRomeItaly
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Paudyal P, Parmar K, Ranjan KR, Kumar S. Long segment right ureteric stricture following ureterorenoscopy for upper ureteric stone: A disastrous complication of endourology. JOURNAL OF CLINICAL UROLOGY 2020. [DOI: 10.1177/2051415820957904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Nephrolithiasis is a common ailment in developing countries such as India. Ureteroscopic management has superseded shockwave lithotripsy as the common treatment for upper urinary tract stones. The process of miniaturizing the instrument along with improved quality of video processor has amplified its potential application, maintaining the procedure safe and effective. However, with its extensive use, complications have risen in parallel, and one should be aware of its adverse effects. Ureteric stricture though rare is a serious problem and risks the loss of renal function. Case presentation: A 37-year-old male presented with right flank pain. On evaluation, he was diagnosed with right upper ureteric stone and left renal stone. The patient suffered ureteric perforation while the right ureterorenoscopy was being performed, and an open repair was done. On postoperative follow-up, he developed long segment ureteric stricture. Boari flap ureteroneocystostomy was done. Conclusion: Iatrogenic ureteric injury following ureterorenoscopy is common, minor and managed conservatively. Important tips to prevent major injury are: placement of the safety guide wire across the length of the ureter, small-calibre scopes during access if a tight gripping sensation is present and the use of lubricant along the length of the ureteroscope.
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de Andrade Junior GF, Barroso FMDS, Alves RADC, Marinho JG, Rodriguez JER, Mancini ALC. Boari-Flap reconstrution due to a total ureteral avulsion in a patient with ipslateral ureterolithiasis and contralateral renal nodule. Urol Case Rep 2020; 30:101118. [PMID: 32025494 PMCID: PMC6997213 DOI: 10.1016/j.eucr.2020.101118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/22/2019] [Accepted: 01/07/2020] [Indexed: 11/02/2022] Open
Abstract
The ureteral avulsion during ureterolithotripsy (URS) occurs due to the sudden movement of the optical device or endoscopic extractor either in its removal or insertion, associated with a probable previous lesion in the ureter wall, causing a vital fragility area. A 52-year-old male patient with, an obstructive calculus of 9 mm was found in the left middle ureter, and a heterogeneous hypervascular nodule located in the right kidney, suggesting neoplasia. During procedure with rigid ureteroscopy with ureteroscope removal, due to the pressure of the device and tissue fragility, there was total ureter avulsion.
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Complications of ureteroscopy: a complete overview. World J Urol 2019; 38:2147-2166. [DOI: 10.1007/s00345-019-03012-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 11/05/2019] [Indexed: 12/18/2022] Open
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Somani BK, Giusti G, Sun Y, Osther PJ, Frank M, De Sio M, Turna B, de la Rosette J. Complications associated with ureterorenoscopy (URS) related to treatment of urolithiasis: the Clinical Research Office of Endourological Society URS Global study. World J Urol 2017; 35:675-681. [PMID: 27492012 PMCID: PMC5364249 DOI: 10.1007/s00345-016-1909-0] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/25/2016] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Ureterorenoscopy (URS) is a popular and growing option for management of ureteric and renal stones. The CROES URS Global Study was set up to assess the outcomes of URS in a large worldwide cohort of patients involving multiple centres. In this paper, we analysed the database for intra-operative and post-operative complications associated with ureterorenoscopy. METHODS The CROES database was established via collaboration between 114 centres in 32 countries worldwide, and information on both intra-operative and post-operative complications was collected electronically between January 2010 and October 2012. RESULT On analysis of a total of 11,885 patients, the overall complication and stone-free rates were found to be 7.4 and 85.6 %, respectively. The intra-operative and post-operative complication rates were 4.2 and 2.6 %, respectively, and in total 5 deaths were reported in the study period. Taking into account different world economies, there were no differences in the complication rates between the developing and developed nations or between different centres from different continents. CONCLUSION Ureterorenoscopy is a safe and effective procedure for treatment of stones, the outcomes of which are broadly comparable in different parts of the world for similar patient and stone demographics.
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Affiliation(s)
- B K Somani
- Department of Urology, University Hospital Southampton, Southampton, UK
| | - G Giusti
- Department of Urology, IRCCS San Raffaele Scientific Institute, Ville Turro Division, Milan, Italy
| | - Y Sun
- Department of Urology, Changhai Hospital, Shanghai, China
| | - P J Osther
- Department of Urology, Lillebaelt Hospital, Fredericia, Denmark
| | - M Frank
- Department of Urology, City Hospital Number 40, Yekaterinburg, Russia
| | - M De Sio
- Urology Unit, Second University of Naples, Naples, Italy
| | - B Turna
- Department of Urology, Ege University School of Medicine, Izmir, Turkey
| | - J de la Rosette
- Department of Urology, AMC University Hospital, Meibergdreef 9, 1105 AZ, Amsterdam Z-O, The Netherlands.
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Tang K, Sun F, Tian Y, Zhao Y. Management of full-length complete ureteral avulsion. Int Braz J Urol 2017; 42:160-4. [PMID: 27136483 PMCID: PMC4811242 DOI: 10.1590/s1677-5538.ibju.2015.0372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 10/09/2015] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Complete ureteral avulsion is one of the most serious complications of ureteroscopy. The aim of this report was to look for a good solution to full-length complete ureteral avulsion. CASE PRESENTATION A 40-year-old man underwent ureteroscopic management. Full-length complete avulsion of ureter occurred during ureteroscopy. Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis were performed 6 hours after ureteral avulsion. The patient was followed-up during 34 months. Double-J tube was removed at 3 months after operation. Twenty three months after the first operation, the patient developed hydronephrosis because of a new ureter upside stone, then rigid ureteroscopy and holmium laser lithotripsy were used successfully. CONCLUSION Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis may be a good choice for full-length complete ureteral avulsion.
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Affiliation(s)
- Kaifa Tang
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Fa Sun
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yuan Tian
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yili Zhao
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
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Tanimoto R, Cleary RC, Bagley DH, Hubosky SG. Ureteral Avulsion Associated with Ureteroscopy: Insights from the MAUDE Database. J Endourol 2016; 30:257-61. [DOI: 10.1089/end.2015.0242] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Ryuta Tanimoto
- Department of Urology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Ryan C. Cleary
- Department of Urology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Demetrius H. Bagley
- Department of Urology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Scott G. Hubosky
- Department of Urology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
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Hubosky SG, Raval AJ, Bagley DH. Locked Deflection During Flexible Ureteroscopy: Incidence and Elucidation of the Mechanism of an Underreported Complication. J Endourol 2015; 29:907-12. [PMID: 25763759 DOI: 10.1089/end.2015.0074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Flexible ureteroscopy (URS) is widely implemented with a well-defined safety profile and low complication rates. Although rare, locked deflection of a flexible ureteroscope in the upper tract is a potentially serious complication with poorly understood etiology and is likely underreported. MATERIALS AND METHODS We attempted to capture all cases of locked deflection during URS by performing an anonymous, online computer survey targeting members of the Endourological Society. The Manufacturer and User Facility Device Experience (MAUDE) database and published literature were queried to find additional cases. The indication for URS, method of ureteroscope removal, patient outcomes, incident reporting, and explanations provided by the manufacturer or third party repair service were obtained whenever possible. RESULTS In total, 10 cases of locked deflection during flexible URS were identified. Survey responses were obtained from 250/2424 (10.3%) endourologists polled. Locked deflection was noted by 8/250 (3.2%). The reported literature and MAUDE database identified one case each. Successful removal was noted in four using retrograde manipulation techniques while a percutaneous approach was used in three patients. Open surgery was needed in two cases because of resultant ureteral avulsion, and in one case, an open ureterotomy was needed for ureteroscope extraction. According to our survey, locked deflection was reported to the patient in 4/8 cases, the hospital in 3/8 cases, and the Food and Drug Administration (FDA) 0/8 cases. The two cases reported outside of our survey both notified the FDA. The minority of respondents (2/8), including our group, felt improper surgical technique was responsible for resultant locked deflection. Specifically, removal of a completely deflected ureteroscope through a stenotic infundibulum should be avoided. Rather, in such a situation, the ureteroscope should be straightened under fluoroscopy before being withdrawn. CONCLUSIONS Locked deflection of a flexible ureteroscope is rare and underreported. Some cases are attributed to surgical technique, and awareness is crucial for avoidance of this complication.
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Affiliation(s)
- Scott G Hubosky
- Department of Urology, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Amar J Raval
- Department of Urology, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Demetrius H Bagley
- Department of Urology, Thomas Jefferson University , Philadelphia, Pennsylvania
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Possible complications of ureteroscopy in modern endourological era: two-point or "scabbard" avulsion. Case Rep Urol 2015; 2014:308093. [PMID: 25610699 PMCID: PMC4291154 DOI: 10.1155/2014/308093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 10/09/2014] [Accepted: 10/13/2014] [Indexed: 12/14/2022] Open
Abstract
Indication has led ureteroscopy to be a worldwide technique, with the expected appearance of multiple types of complications. Severe complications are possible including ureteral perforation or avulsion. Ureteral avulsion has been described as an upper urinary tract injury related to the action of blunt trauma, especially from traffic accidents, being the mechanism of injury, the result of an acute deceleration/acceleration movement. With the advent of endourology, that term is also applied to the extensive degloving injury resulting from a mechanism of stretching of the ureter that eventually breaks at the most weakened site, or ureteral avulsion is referred to as a discontinuation of the full thickness of the ureter. The paper presents a case report and literature review of the two-point or "scabbard" avulsion. The loss of long segment of the upper ureter, when end-to-end anastomosis is not technically feasible, presents a challenge to the urological surgeon. In the era of small calibre ureteroscopes these complications, due to growing incidence of renal stones will become more and more actual. Our message to other urologists is to know such a complication, to know the ways of treatment, and to analyse ureteroscopic signs, when to stop or pay attention.
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How to manage total avulsion of the ureter from both ends: our experience and literature review. Int Urol Nephrol 2013; 45:1553-60. [PMID: 23884730 DOI: 10.1007/s11255-013-0505-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 06/24/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES To evaluate the treatment alternatives of total avulsion of the ureter from both ends including ureteropelvic junction (UPJ) and ureterovesical junction (UVJ). METHODS Total ureteral avulsion on both ends of the ureter was examined in 4 cases performing ureteroscopy. In two male patients of the four cases, avulsion was noticed intraoperatively and ureteral re-anastomosis at UPJ and re-implantation at UVJ were performed immediately. Boari flap was performed for one female patient immediately and for the other female patient who was referred from another hospital after the ureteroscopy, 4 days later. RESULTS One patient who had ureteral re-implantation was followed with 3-month intervals by ultrasonography and abdominal X-ray. At the end of 1 year, it was determined that kidney parenchyma was normal and the patient had kidney and upper ureteral stones. Percutaneous nephrolithotomy was performed, and the patient was stone-free at the end of the operation. Two years after the surgery, both kidneys were normal. This is the only case who had a successful ureteral re-implantation in literature. The other patient turned up a year later for routine checks after the ureteral stent was removed. Then, hydronephrosis and renal atrophy were detected. The patient did not accept nephrectomy or any other intervention and he was lost to follow-up. Boari flap procedure was performed after UPJ repair for the other two female patients. Their kidneys were both normal 3 months after the operation. CONCLUSIONS In case of ureteral avulsion from both ends of the ureter in the male patients, as bladder capacity is not enough for a Boari flap, proximal anastomosis and distal re-implantation could be a good choice for the management of this untoward event. This new approach also saves time for reconstructive treatments if necessary. If bladder capacity is enough to reach UPJ, Boari flap could be a good choice in female patients.
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Gao P, Zhu J, Zhou Y, Shan Y. Full-length ureteral avulsion caused by ureteroscopy: report of one case cured by pyeloureterostomy, greater omentum investment, and ureterovesical anastomosis. Urolithiasis 2013; 41:183-6. [PMID: 23503882 DOI: 10.1007/s00240-012-0541-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Accepted: 12/18/2012] [Indexed: 12/01/2022]
Abstract
The aim of this report was to look for a good solution to full-length ureteral avulsion. This report retrospectively analyzed the data of the patient. The patient underwent ureteroscopic management. Full-length avulsion of ureter occurred during ureteroscopy. Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis were performed immediately. The patient was followed-up 25 months. After the first operation, the patient developed hydronephrosis because of press of fibrosis tissue outside ureter and anastomotic atresia of ureter-bladder. When we finished the second operation, the renal function recovered well. Full-length avulsion of ureter is a severe complication. Pyeloureterostomy plus greater omentum investment outside the avulsed ureter and ureterovesical anastomosis are probably a good choice.
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