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Maheswaran R, Beisland C, Bergesen AK, Almås B. A delayed diagnosis of iatrogenic ureteral injury results in increased morbidity. Sci Rep 2024; 14:13771. [PMID: 38877070 PMCID: PMC11178925 DOI: 10.1038/s41598-024-63847-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 06/03/2024] [Indexed: 06/16/2024] Open
Abstract
This study aimed to register and analyse outcomes after iatrogenic ureteral injuries (IUI) with special emphasis on potential consequences of a delayed diagnosis, and further to analyse if the incidence of IUI has changed during the study period. 108 patients treated for an IUI during 2001-2021 were included. Injuries due to endourological procedures, planned tumour resection and traumatic injuries were excluded. All relevant information to answer the research questions were entered into a database. Chi-square and t-tests were used for categorical and continuous variables respectively. Regression analysis was used to evaluate potential change of incidence in IUIs over time. Our results showed that most IUIs (74, 69%) were caused by gynaecological surgery. 49 (45%) had a delayed diagnosis (not diagnosed intraoperatively). Younger age (mean 50 vs 62 years, p < 0.001) and benign indication for laparoscopic hysterectomy (OR 8.0, p < 0.001) predisposed for a delayed diagnosis. Patients with a delayed diagnosis had a higher number of secondary injury related procedures (mean 4.6 vs 1.7, p < 0.001), hospital admissions (mean 3.0 vs 0.8, p < 0.001) and longer hospital stays (mean 20.6 vs 3.9 days p < 0.001) compared to patients with an intraoperative diagnosis. There was complete recovery for 91% of the patients. We did not observe any changes in IUI incidence during the study period. In conclusion, our study underlines that IUI can cause major morbidity for the patient affected if not diagnosed intraoperatively. Benign indication and younger age are predictors for a delayed diagnosis. The prognosis is good, with 91% full recovery. No significant changes in incidence of IUIs were observed.
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Affiliation(s)
- Rachel Maheswaran
- Department of Urology, Haukeland University Hospital, 5021, Bergen, Norway.
| | - Christian Beisland
- Department of Urology, Haukeland University Hospital, 5021, Bergen, Norway
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Anne K Bergesen
- Department of Urology, Haukeland University Hospital, 5021, Bergen, Norway
| | - Bjarte Almås
- Department of Urology, Haukeland University Hospital, 5021, Bergen, Norway
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
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Luo X, Hao WW, Zhang X, Qi YX, An LX. Effect of esketamine on the ED 50 of propofol for successful insertion of ureteroscope in elderly male patients: a randomized controlled trial. BMC Anesthesiol 2024; 24:195. [PMID: 38822249 PMCID: PMC11140970 DOI: 10.1186/s12871-024-02580-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: 03/09/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Propofol is effective and used as a kind of routine anesthetics in procedure sedative anesthesia (PSA) for ureteroscopy. However, respiratory depression and unconscious physical activity always occur during propofol-based PSA, especially in elderly patients. Esketamine has sedative and analgesic effects but without risk of cardiorespiratory depression. The purpose of this study is to investigate whether esketamine can reduce the propofol median effective dose (ED50) for successful ureteroscope insertion in elderly male patients. MATERIALS AND METHODS 49 elderly male patients undergoing elective rigid ureteroscopy were randomly divided into two groups: SK Group (0.25 mg/kg esketamine+propofol) and SF Group (0.1 µg/kg sufentanil+propofol). Patients in both two groups received propofol with initial bolus dose of 1.5 mg/kg after sufentanil or esketamine was administered intravenously. The effective dose of propofol was assessed by a modified Dixon's up-and-down method and then was adjusted with 0.1 mg/kg according to the previous patient response. Patients' response to ureteroscope insertion was classified as "movement" or "no movement". The primary outcome was the ED50 of propofol for successful ureteroscope insertion with esketamine or sufentanil. The secondary outcomes were the induction time, adverse events such as hemodynamic changes, hypoxemia and body movement were also measured. RESULT 49 patients were enrolled and completed this study. The ED50 of propofol for successful ureteroscope insertion in SK Group was 1.356 ± 0.11 mg/kg, which was decreased compared with that in SF Group, 1.442 ± 0.08 mg/kg (P = 0.003). The induction time in SK Group was significantly shorter than in SF Group (P = 0.001). In SK Group, more stable hemodynamic variables were observed than in SF Group. The incidence of AEs between the two groups was not significantly different. CONCLUSION The ED50 of propofol with esketamine administration for ureteroscope insertion in elderly male patients is 1.356 ± 0.11 mg/kg, significantly decreased in comparsion with sufentanil. TRIAL REGISTRATION Chinese Clinical Trial Registry, No: ChiCTR2300077170. Registered on 1 November 2023. Prospective registration. http://www.chictr.org.cn .
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Affiliation(s)
- Xin Luo
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No.95 Yongan Road, Xicheng District, Beijing, 100050, China
| | - Wen-Wen Hao
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No.95 Yongan Road, Xicheng District, Beijing, 100050, China
| | - Xue Zhang
- Department of Anesthesiology, Jingmei Group General Hospital, Beijing, China
| | - Yu-Xuan Qi
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No.95 Yongan Road, Xicheng District, Beijing, 100050, China
| | - Li-Xin An
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No.95 Yongan Road, Xicheng District, Beijing, 100050, China.
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Takamori H, Akioka T, Otsuka I, Mukai S, Sato Y, Kamoto T. Bilateral long ureteral strictures were successfully replaced by ileum in inverse seven configuration: A case report. Int J Surg Case Rep 2024; 116:109357. [PMID: 38340626 PMCID: PMC10943659 DOI: 10.1016/j.ijscr.2024.109357] [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: 12/21/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
INTRODUCTION AND IMPORTANCE Ureteral stricture is a potential postoperative complication of pelvic surgery. Repair is performed in the intraoperative or postoperative phase for various reasons. Ileal reconstruction of ureter is considered for extensive and bilateral ureteral injuries. CASE PRESENTATION A 44-year-old female presented to the hospital where she had undergone hysterectomy two months prior, with acute renal failure due to bilateral hydronephrosis. Radiological examination revealed bilateral distal ureteral stricture measuring 5 cm in length. After failed balloon-dilation, ileal reconstruction was successfully performed without perioperative complications; and she has remained free from hydronephrosis with normal renal function for four years. CLINICAL DISCUSSION Ileal interposition can be used for reconstruction of long lengths or bilateral ureteral injuries. High success rates and low rates of complication have been reported, and the long-term outcome was also acceptable. Apparent ureteral injury was not observed in our case; however, narrowing of ureteral lumen due to submucosal and sub-adventitial edema was observed as a possible cause of strictures. Although, some minor occult injuries during hysterectomy, including thermal effect, ischemia or physical damage due to traction on the ureters were suggested, we were unable to conclusively determine the etiology. CONCLUSION Ileal ureter replacement is a useful reconstruction, and the inverse seven configuration is suitable for long bilateral strictures of distal ureter.
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Affiliation(s)
- Hiroki Takamori
- Department of Urology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan
| | - Takahiro Akioka
- Department of Urology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan
| | - Isamu Otsuka
- Department of Urology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan
| | - Shoichiro Mukai
- Department of Urology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan.
| | - Yuichiro Sato
- Department of Diagnostic Pathology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan
| | - Toshiyuki Kamoto
- Department of Urology, Faculty of Medicine, Miyazaki University Hospital, Miyazaki, Japan
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Souli A, Alves A, Tillou X, Menahem B. Iatrogenic ureteral injury: What should the digestive surgeon know? J Visc Surg 2024; 161:6-14. [PMID: 38242812 DOI: 10.1016/j.jviscsurg.2023.04.001] [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] [Indexed: 01/21/2024]
Abstract
PURPOSE OF THE STUDY Iatrogenic ureteral injury (IUI) is a rare but formidable complication of any abdominal or pelvic surgery. The aim of this study was to describe the epidemiology of IUI in colorectal surgery in the Basse-Normandie region over the period 2004-2022, as well as to review the literature on the management of this complication. MATERIALS AND METHODS This multicenter retrospective analysis of clinical data (medical records and operative reports) concerned 22 patients (13 men and 9 women) who suffered an IUI during colorectal surgery between 2004 and 2022. Ureteral resections for oncological purposes and endoluminal instrumental injuries (post-ureteroscopy) were excluded from the study. We also carried out a review of the literature concerning the incidence of IUI in colorectal surgery. RESULTS The incidence of IUI was 0.27% over the study period (22 ureteral injuries out of 8129 colorectal procedures). Colorectal cancer and sigmoid diverticulitis were the dominant surgical indications (85% of cases). Proctectomy and left colectomy were the most performed resection procedures (75% of cases). Surgery was scheduled in 68% of cases. The approach was open laparotomy in 59% and laparoscopy in 41% of cases. The IUI involved the left ureter in 63% of cases and the pelvic ureter in 77% of cases. Conservative endoscopic treatment by insertion of a double-J catheter stent had a success rate of 87.5%. Surgical repairs consisting of re-implantation techniques and uretero-ureteral anastomosis had a success rate of 75%. The nephrectomy rate was 13.6% (3/22) and the mortality rate 9% (2/22). A literature review identified sixteen studies, where the incidence of IUI varied from 0.1 to 4.5%. FINDINGS IUI occurring during colorectal surgery is a rare occurrence but remain a formidable complication. No means of prevention has proven its effectiveness to date, but guidance devices using illuminated ureteral catheters or dyes seem to constitute a promising approach. Injuries to the left pelvic ureter are the most common, and the majority can be treated endoscopically if diagnosed early.
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Affiliation(s)
- Abdelaziz Souli
- Department of digestive surgery, university hospital of Caen, avenue de la Côte-de-Nacre, 14033 Caen cedex, France
| | - Arnaud Alves
- Department of digestive surgery, university hospital of Caen, avenue de la Côte-de-Nacre, 14033 Caen cedex, France; UNICAEN, Inserm, ANTICIPE, Normandie university, 14000 Caen, France
| | - Xavier Tillou
- Department of urology, university hospital of Caen, Caen, France
| | - Benjamin Menahem
- Department of digestive surgery, university hospital of Caen, avenue de la Côte-de-Nacre, 14033 Caen cedex, France; UNICAEN, Inserm, ANTICIPE, Normandie university, 14000 Caen, France.
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Subramanian P, Sharma A, Soundararajan R, Singhal M. Spectrum of Multidetector Computed Tomography Imaging Findings in Iatrogenic Abdominopelvic Injuries: A Comprehensive Pictorial Review. Indian J Radiol Imaging 2024; 34:139-149. [PMID: 38106862 PMCID: PMC10723973 DOI: 10.1055/s-0043-1775736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023] Open
Abstract
Iatrogenic injuries are unavoidable complications of surgeries and minimally invasive procedures. They are generally classified into vascular and nonvascular injuries and based on the time of injury into early and late injuries. Iatrogenic injuries, particularly vascular injuries, increase the mortality and morbidity, with prolongation of hospital-stay. Multidetector computed tomography (MDCT) is a highly sensitive, and often the first imaging modality in suspected iatrogenic injuries. This pictorial review elucidates the imaging considerations and appearances of iatrogenic injuries of the abdominopelvic organs on MDCT.
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Affiliation(s)
- Pavithra Subramanian
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arun Sharma
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Raghuraman Soundararajan
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Manphool Singhal
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Matkov TG, Curry LS, Ochoa AL. Risk stratification of acute kidney injury (AKI) following ureteral stent insertion for colorectal surgery. Surg Endosc 2024; 38:312-318. [PMID: 37749203 DOI: 10.1007/s00464-023-10440-z] [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: 04/06/2023] [Accepted: 09/01/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION AND OBJECTIVES Ureteral stents have long been utilized during colorectal resections to assist in the identification of ureters intraoperatively and mitigate risk of ureteral injury. As these procedures have shifted toward robot-assisted laparoscopic methods, lighted stents have increasingly been used. The incidence of acute kidney injury (AKI) following bilateral ureteral stent placement has been reported to be as high as 41.9%. We sought to identify our single-institution risk and determine the extent to which age, sex, and stent type affected incidence of AKI. METHODS A retrospective analysis was performed at a single community hospital of all open and robotic-assisted laparoscopic colorectal surgeries from October 2012 to April 2022. If requested, ureteral stents were placed bilaterally by a urologist and later removed by the surgeon. Non-lighted stents used were 5 Fr whistle-tip (BARD); lighted stents were 6 Fr with a fiberoptic core (STRYKER). Kidney failure was described as a rise of creatinine to ≥ 1.5 times the preoperative value, per KDIGO guidelines. RESULTS 633 consecutive colorectal surgeries were evaluated, with no stents placed in 237 cases, non-lighted stents placed in 137 cases, and lighted stents placed in 259 cases. No ureteral injuries were observed. Overall incidence of AKI for non-stented surgeries was 0.8% vs 5.8% for non-lighted stents and 5.8% for lighted stents. Patient age was the most significant factor in AKI incidence: for patients under 60, there was no statistical difference in AKI incidence for stented vs non-stented procedures (2.2% vs 1.1%). For patients over 60, the risk of AKI was 10.5% for stented vs 0.7% for non-stented. Female patients had statistically significant risk differences, with AKI incidence of 7.1% stented vs 0.0% non-stented. AKI completely resolved in all cases, regardless of cohort. CONCLUSIONS In patients under age 60, the use of stents was not associated with an increased risk of AKI. For women and those over 60, stents pose a higher risk of transient AKI. Overall incidence of AKI in our larger and single-institution community hospital population was significantly lower than reported in other studies. No statistical difference was observed, overall, in AKI incidence between lighted and non-lighted stents.
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Affiliation(s)
- Thomas G Matkov
- Department of Urology, Aurora Medical Center-Kenosha, Kenosha, WI, USA.
| | - Laurel S Curry
- Biomedical Engineering Student, Cornell University, Ithaca, NY, USA
| | - Alma L Ochoa
- Department of Urology, Aurora Medical Center-Kenosha, Kenosha, WI, USA
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Buksh O, Jar A, Khogeer A, Alzahrani H, Akram R, Taher M, Al Akra’a M, Alammari A, Junaid I. Thermoexpandable Memokath stent: Usage and efficacy in ureteral and urethral strictures in Saudi Arabia. Urol Ann 2024; 16:98-103. [PMID: 38415229 PMCID: PMC10896320 DOI: 10.4103/ua.ua_160_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 08/11/2023] [Indexed: 02/29/2024] Open
Abstract
Objectives Double J (DJ) stent is widely used in cases of ureteric strictures as a temporary solution; however, it has certain limitations, such as the need for frequent exchange. Alternatively, a long-lasting thermoexpandable stent (Memokath™ 051) has been used to relieve ureteral obstructions in comorbid patients with multiple reported advantages, such as longer durability which avoids the need of frequent exchanges. In addition, it can be used in certain cases of urethral strictures. Our study is the first in the region to report the experience and outcome of Memokath stent with ureteral and urethral strictures. Materials and Methods After local IRB approval, we retrospectively reviewed records of 21 patients who underwent insertion of Memokath 051 stent in the ureter and Memokath 045 in the urethra between 2013 and 2021. Indications of insertion, indwelling duration, and causes of removal were collected and analyzed by SPSS. Results Twenty-one patients received 21 Memokath stents for 11 ureteral strictures and 10 urethral strictures. Fifty-five percent of ureteral strictures were malignant, and 27.3% of the benign ureteric strictures were transplant ureters. Ureteric memokath stents remained functioning for a mean of 16.1 months. Mean indwelling time for transplant ureteric memokath stents was 24.3 months. Total 4 ureteric stents had migrated, 4 stents blocked, and 2 stents were removed as planned and 1 stent removed due to febrile urinary tract infection (UTI). Ten urethral stents remained in place for mean of 14 months. Three stents were removed as planned with resolution of stricture, two were removed due to blockage, three stents had UTI, one was removed due to pain, and one stent remained functioning until the patient expired. Conclusion Our outcome is comparable to other published studies, suggesting that ureteric Memokath stent is a better option with adequate indwelling time, especially in transplant ureters, in comparison with DJ stents. In addition, Memokath stents can be used in selected recurrent urethral strictures where surgical reconstruction is not feasible.
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Affiliation(s)
- Omar Buksh
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Anfar Jar
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Ahmad Khogeer
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Hani Alzahrani
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Rabea Akram
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Mohammad Taher
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Mahmoud Al Akra’a
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Adel Alammari
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Islam Junaid
- Department of Urology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
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Barns ME, Dinh Chau MVH, Teloken PE, Hodder R. The Use of Prophylactic Ureteric Stents in Major Abdomino-Pelvic Sarcoma Surgery: Risks, Benefits, and Potential Complications. Res Rep Urol 2023; 15:577-585. [PMID: 38145156 PMCID: PMC10748668 DOI: 10.2147/rru.s435959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/14/2023] [Indexed: 12/26/2023] Open
Abstract
Here we present two cases of post-operative obstructive renal failure following major abdomino-pelvic sarcoma surgery. In both cases, prophylactic ureteric stents were inserted to aid the identification and protection of the ureters during resection of these complex retroperitoneal masses. In case one, obstructive renal failure occurred following ureteric stent removal on day 0 post-operatively. In case two, obstructive renal failure developed on day 1 post-operatively despite having a ureteric stent in situ. Here we propose that a combination of reflex anuria/ureteric edema and papillary sloughing led to the obstructive renal failure in both cases. Re-insertion of bilateral ureteric stents in case one, and replacement of a right ureteric stent in case two saw prompt excretion of urine and sloughy debris with rapid improvement of renal function. This article presents these cases in detail and further reviews the use of prophylactic ureteric stents in major abdomino-pelvic surgery along with the current guidelines for their usage.
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Affiliation(s)
| | | | | | - Rupert Hodder
- Sir Charles Gardiner Hospital, Department of General Surgery, Perth, WA, Australia
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9
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Comparison of split-cuff nipple and modified Lich-Gregoir ureteroneocystostomy in iatrogenic distal ureteral injuries: tertiary care center experience. Int Urol Nephrol 2023; 55:605-611. [PMID: 36536101 DOI: 10.1007/s11255-022-03449-1] [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: 10/01/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE In this study, we aimed to compare the results of split-cuff nipple and modified Lich-Gregoir ureteroneocystostomy, which are the most commonly used techniques in stage ≥ 3 iatrogenic distal ureteral injuries. METHODS The files of patients who were treated for iatrogenic distal ureteral injuries in our clinic between January 2013 and January 2019 were retrospectively reviewed. A total of 60 patients who underwent either intra-vesical split-cuff nipple ureteroneocystostomy (Group A) or extra-vesical modified Lich-Gregoir ureteroneocystostomy (Group B) operations were included in the study. The success of ureteroneocystostomy was defined as no additional surgery requirement, no progression of hydronephrosis on imaging, and normal contrast transition on imaging. RESULTS Thirty-four patients underwent split-cuff nipple and 26 patients underwent modified Lich-Gregoir ureteroneocystostomy. The treatment was successful in 53 (88.3%) patients and failed in seven (11.7%). Complications occurred in 19 (31.7%) patients, of whom 14 (23.3%) had minor and five (8.3%) had major complications. The rate of postoperative complications was significantly higher in Group A than in Group B (p = 0.019). There was no significant difference between Group A and Group B in terms of the success ratio (p = 1), rate of major complications (p = 0.372), and postoperative hospitalization times (p = 0.254). CONCLUSION In this study, a higher complication rate was found in patients with iatrogenic ureteral injuries who underwent ureteroneocystostomy with the split-cuff ureteral nipple technique compared to those who underwent this operation with the modified Lich-Gregoir technique. However, no significant difference was observed between these two techniques in terms of treatment success and major complications.
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Han DS, Johnson JP, Schulster ML, Shah O. Indications for and results of renal autotransplantation. Curr Opin Nephrol Hypertens 2023; 32:183-192. [PMID: 36683544 DOI: 10.1097/mnh.0000000000000860] [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: 01/24/2023]
Abstract
PURPOSE OF REVIEW To understand the indications and outcomes of renal autotransplantation, and when to consider this unique procedure for patients. RECENT FINDINGS Renal autotransplantation confers acceptably low rates of graft failure and prevents need for long-term dialysis. Renal autotransplantation remains an important management strategy in very select patients for complex renovascular disease, ureteral stricture disease, ureteral trauma, upper urinary tract urothelial carcinoma, renal cell carcinoma, and Loin-Pain Hematuria Syndrome. With advancements in minimally invasive procedures, the application of renal autotransplantation for refractory stone disease is rare but exists. Robot-assisted laparoscopic renal autotransplantation demonstrates reproducible graft success and complication rates with improved perioperative outcomes (ex. hospital length of stay) - though comparative studies are lacking. Patients would benefit from a multidisciplinary approach from renal transplant surgeons, vascular surgeons, urologists, nephrologists, dieticians, pain management providers, social workers, and psychiatrists. SUMMARY In experienced hands, renal autotransplantation is a reasonable treatment approach for complex and refractory renal vascular disease, Loin-Pain Hematuria Syndrome, ureteral strictures and trauma, upper urinary tract malignancy, and stone disease in highly select patients.
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Affiliation(s)
- David S Han
- Columbia University Irving Medical Center, Department of Urology
| | - Jeffrey P Johnson
- Weill Cornell Medical College, Department of Urology, New York, New York, USA
| | | | - Ojas Shah
- Columbia University Irving Medical Center, Department of Urology
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Chen K, Lawrentschuk N. Case of the Month from Peter MacCallum Cancer Centre, Melbourne, Australia: ICG-assisted robotic Boari flap ureteric reimplantation in a case of missed ureteric injury. BJU Int 2023; 131:46-49. [PMID: 36546722 DOI: 10.1111/bju.15867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kenneth Chen
- Department of Genitourinary Oncology, Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Department of Urology, Singapore General Hospital, Singapore City, Singapore
| | - Nathan Lawrentschuk
- Department of Genitourinary Oncology, Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Melbourne, Vic., Australia.,EJ Whitten Prostate Cancer Research Centre at Epworth Healthcare, Melbourne, Vic., Australia
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12
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Muacevic A, Adler JR, El Moudane A, Barki A. Ureteral Injury by a Retained Knife After Abdominal Trauma: A Case Report. Cureus 2022; 14:e32719. [PMID: 36686087 PMCID: PMC9850262 DOI: 10.7759/cureus.32719] [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] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Isolated ureteral injuries are rare, occurring particularly in gunshot wounds to the abdomen. These are much rarer in the context of stab wounds. These lesions are usually silent. We report a 30-year-old man with a history of abdominal penetrating trauma with a knife, 11 years ago before the actual admission to the urology department. The patient's report describes a retained metallic foreign body in the right lumbar area. At admission, the patient presented with a four-months history of right lumbago. An abdominal computed tomography scan revealed the presence of a right para-renal small urinoma and identified the 52 x 20 mm metallic foreign body at the level of L3 and L4 vertebral bodies, with the presence of mild right ureterohydronephrosis. Ureteral injuries can lead to significant morbidity and mortality when unrecognized or mismanaged. The basis of therapy for patients with ureteral injuries is to maintain renal drainage with options depending on individual cases.
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Takagi K, Matsumoto K, Taniguchi D, Machino R, Uchida F, Hara R, Oishi K, Yamane Y, Iwatake M, Eguchi M, Mochizuki Y, Nakayama K, Nagayasu T. Regeneration of the ureter using a scaffold-free live-cell structure created with the bio-three-dimensional printing technique. Acta Biomater 2022:S1742-7061(22)00662-6. [DOI: 10.1016/j.actbio.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 11/29/2022]
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Cebeci OÖ. Is endourological intervention a suitable treatment option in the management of iatrogenic thermal ureteral injury? A contemporary case series. BMC Urol 2022; 22:137. [PMID: 36057579 PMCID: PMC9441037 DOI: 10.1186/s12894-022-01094-5] [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: 11/12/2021] [Accepted: 08/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Iatrogenic ureteral injury (IUI) is relatively rare, however, can cause sepsis, kidney failure, and death. Most cases of IUI are not recognized until the patient presents with symptoms following pelvic surgery or radiotherapy. Recently, minimally invasive approaches have been used more frequently in the treatment of IUI. This study evaluates urological intervention success rates and long-term clinical outcomes according to the type of IUI following hysterectomy. METHODS Twenty-seven patients who underwent surgery due to IUI in our clinic following hysterectomy were evaluated between January 2011 and April 2018. Patients were classified according to the time of diagnosis of IUI. The IUI cases diagnosed within the first 24 h following hysterectomy were designated as "immediate" IUI, while that diagnosed late period was considered 'delayed' IUI. The type of IUI was categorized as "cold transection" if it was due to surgical dissection or ligation without any thermal energy, and "thermal injury" if it was related to any energy-based surgical device. Patient information, laboratory and perioperative data, imaging studies, and complications were assessed retrospectively. RESULTS All cases of delayed diagnosis IUI were secondary to laparoscopic hysterectomy (P = 0.041). Patients with thermal injury to the ureter were mostly diagnosed late (delayed) (P = 0.029). While 31% of the patients who underwent endourological intervention were diagnosed immediately, 69% of them were diagnosed as delayed. These rates were roughly reversed for open reconstructive surgery: 73% and 27% (P = 0.041), respectively. We detected eight ureteral complications in our patient cohort following the urological intervention. In all these failed cases, the cause of IUI was a thermal injury (P = 0.046) and the patients had received endourological treatment (P = 0.005). No complications were detected in patients who undergo open urological reconstructive surgery. While one of the patients who developed urological complications had an immediate diagnosis, seven were in the delayed group (P = 0.016). CONCLUSION Endourological intervention is performed more frequently in delayed diagnosed IUI following hysterectomy, however, the treatment success rate is low if thermal damage has developed in the ureter. Surgical reconstruction is should be preferred in these thermal injury cases to avoid further ureter-related complications.
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Affiliation(s)
- Oğuz Özden Cebeci
- Department of Urology, Kocaeli Derince Traning and Research Hospital, Saglik Bilimleri University, Ibni Sina Blv 1, 41200, Derince, Kocaeli, Turkey.
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Hardie JA, Hunn D, Mitchell TE, Brennan PA. Patient, Procedure, People (PPP): recognising and responding to intraoperative critical events. Ann R Coll Surg Engl 2022; 104:409-413. [PMID: 34939840 PMCID: PMC9157965 DOI: 10.1308/rcsann.2021.0193] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Intraoperative critical events are rarely experienced by individual surgeons but are commonly experienced at a workforce level. Finding unfamiliar or unexpected pathology, anatomy, haemorrhage or an iatrogenic organ or structure injury cannot be completely eliminated in the complex surgical environment. It is vital that an appropriate, safe response to these infrequent events takes place to prevent possible further harm to patients. This paper introduces 'Patient, Procedure, People', a tool adapted from aviation threat and error management (TEM) training. It allows surgical teams to improve situational awareness (SA), communicate effectively, flatten team hierarchy gradients and improve decision-making before responding to critical events. We review factors contributing to poor decision-making, with resulting errors. These include loss of SA (tunnel vision), acute stress reactions (fight-flight or freeze-hide) and limbic hijacking (surprise and startle events). Events may cause workload to increase beyond cognitive capacity, further exacerbating the situation. After completing initial actions to achieve a temporary 'place of safety', surgical teams may use the tool to effectively manage threat or mitigate error. Aviation is a high-reliability organisation that has pioneered human factors research and training. Airline pilots undergo regular simulated emergencies assessment, including mandatory human factors assessment. Although the complexities of the operating theatre do not currently lend themselves to high-fidelity simulation as in aviation, valuable transferrable lessons can be learnt from aviation's approach to TEM.
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Affiliation(s)
- JA Hardie
- Frimley Health NHS Foundation Trust, UK
| | | | | | - PA Brennan
- Portsmouth Hospitals University NHS Trust, UK
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16
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Multispectral Imaging Using Fluorescent Properties of Indocyanine Green and Methylene Blue in Colorectal Surgery-Initial Experience. J Clin Med 2022; 11:jcm11020368. [PMID: 35054062 PMCID: PMC8778329 DOI: 10.3390/jcm11020368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/14/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023] Open
Abstract
Introduction: Image-guided surgery is becoming a new tool in colorectal surgery. Intraoperative visualisation of different structures using fluorophores helps during various steps of operations. In our report, we used two fluorophores—indocyanine green (ICG), and methylene blue (MB)—during different steps of colorectal surgery, using one camera system for two separate near-infrared wavelengths. Material and methods: Twelve patients who underwent complex open or laparoscopic colorectal surgeries were enrolled. Intravenous injections of MB and ICG at different time points were administered. Visualisation of intraoperative ureter position and fluorescent angiography for optimal anastomosis was performed. A retrospective analysis of patients treated in our departments during 2020 was performed, and data about ureter injury and anastomotic site complications were collected. Results: Intraoperative localisation of ureters with MB under fluorescent light was possible in 11 patients. The mean signal-to-background ratio was 1.58 ± 0.71. Fluorescent angiography before performing anastomosis using ICG was successful in all 12 patients, and none required a change in position of the planned colon resection for anastomosis. The median signal-to-background ratios was 1.25 (IQR: 1.22–1.89). Across both centres, iatrogenic injury of the ureter was found in 0.4% of cases, and complications associated with anastomosis was found in 5.5% of cases. Conclusions: Our study showed a substantial opportunity for using two different fluorophores in colorectal surgery, whereby the visualisation of one will not change the possible quantification analysis of the other. Using two separate dyes during one procedure may help in optimisation of the fluorescent properties of both dyes when using them for different applications. Visualisation of different structures by different fluorophores seems to be the future of image-guided surgery, and shows progress in optical technologies used in image-guided surgery.
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Mazzarella G, Muttillo EM, Picardi B, Rossi S, Rossi Del Monte S, Muttillo IA. Real-Time Intraoperative Ureteral Identification in Minimally Invasive Colorectal Surgery: A Systematic Review. J Laparoendosc Adv Surg Tech A 2021; 32:627-633. [PMID: 34669486 DOI: 10.1089/lap.2021.0292] [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] [Indexed: 02/06/2023] Open
Abstract
Background: Although colorectal surgery (CRS) has currently almost entirely standardized surgical procedures, it can still show pitfalls such as the intraoperative ureteral injury. Intraoperative ureteral identification (IUI) could reduce the ureteral injuries rate but evidence is still lacking. We aimed to analyze the utility and the effectiveness of real-time IUI in minimally invasive CRS. Materials and Methods: A systematic review was performed examining available data on randomized and nonrandomized studies evaluating the utility of intraureteral fluorescence dye (IFD) and lighted ureteral stent (LUS) for intraoperative identification of ureters in CRS, in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) standards. Primary endpoint was ureteral injuries rate. Secondary endpoints included acute kidney injury, hematuria, urinary tract infections (UTI), and fluorescence assessment. Results: After literature search, 158 studies have been recorded, 36 studies underwent full-text reviews and 12 studies met inclusion criteria. Overall, out of a total of 822 patients who successfully received IUI, 3 (0.33%) patients experienced ureteral injury. Hematuria was reported in 689 (97.6%) of patients following LUS-guided surgery and in 1 (2%) patient following IFD-guided surgery, although transient in all cases. UTI was reported in 15 (3.3%) LUS-guided resections and in 1 (2%) IFD-guided resections. Acute kidney injury occurred in 23 (2.5%) LUS-guided surgery and 1 (1%) IFD-guided surgery. Conclusions: Real-time ureteral identification techniques could represent a valid solution in complex minimally invasive CRS, safely, with no time consuming and always reproducible by surgeons. Prospective studies will be needed to confirm these findings.
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Affiliation(s)
- Gennaro Mazzarella
- Department of General and Emergency Surgery, San Filippo Neri Hospital, Rome, Italy.,Department of Emergency Surgery, Sapienza University of Rome, Rome, Italy
| | - Edoardo Maria Muttillo
- Department of General and Emergency Surgery, San Filippo Neri Hospital, Rome, Italy.,Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
| | - Biagio Picardi
- Department of General and Emergency Surgery, San Filippo Neri Hospital, Rome, Italy
| | - Stefano Rossi
- Department of General and Emergency Surgery, San Filippo Neri Hospital, Rome, Italy
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Dumont S, Chys B, Meuleman C, Verbeke G, Joniau S, Van der Aa F. Prophylactic ureteral catheterization in the intraoperative diagnosis of iatrogenic ureteral injury. Acta Chir Belg 2021; 121:261-266. [PMID: 32253998 DOI: 10.1080/00015458.2020.1753148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Iatrogenic ureteral injury (IUI) is a rare but feared complication in pelvic surgery. Prophylactic ureteral catheterization (PUC) is inconsistently used to reduce this risk, however no strong evidence exists for this practice. The objective is to investigate whether prophylactic ureteral catheterization can enhance intraoperative detection of IUI and reduce associated patient morbidity. METHODS The database of our tertiary referral hospital was retrospectively queried for ureter repairs due to iatrogenic injuries. The search yielded 845 unique patient files. After application of exclusion criteria and manual review of files, 155 individual cases remained. Statistical analysis was performed on the following parameters: timing of ureteral injury discovery, duration until catheter removal and postoperative complications. RESULTS Prophylactic ureteral catheterization was able to significantly enhance intraoperative diagnosis of IUI (OR = 5.09; 95%CI = 2.26-11.48). The number needed to treat is 2.6 patients. Furthermore, when the IUI was diagnosed during surgery, a significant reduction in postoperative complications was observed (RR = 0.64; 95%CI = 0.42-0.98). CONCLUSION Although the beneficial effects of PUC on IUI incidence remain controversial, when a ureteral injury occurs during pelvic surgery, the presence of prophylactic ureteral catheters can significantly reduce both diagnostic delay and postoperative morbidity. By promoting an immediate repair, ureteral catheterization reduces need for further diagnostics and secondary interventions.
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Affiliation(s)
- Sander Dumont
- Department of Gynecology and Obsetrics, University Hospitals Leuven, Leuven, Belgium
| | - Brecht Chys
- Urology, Department of Development and Regeneration, University Hospitals Leuven, Leuven, Belgium
| | - Christel Meuleman
- Department of Gynecology and Obsetrics, University Hospitals Leuven, Leuven, Belgium
- Leuven University Fertility Center, University Hospitals Leuven, Leuven, Belgium
| | - Geert Verbeke
- Department of Public Health and Primary Care, Leuven Biostatistics and Statistical Bioinformatics Centre, KU Leuven, Leuven, Belgium
| | - Steven Joniau
- Urology, Department of Development and Regeneration, University Hospitals Leuven, Leuven, Belgium
| | - Frank Van der Aa
- Urology, Department of Development and Regeneration, University Hospitals Leuven, Leuven, Belgium
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Teste B, Rullier E. Intraoperative complications during laparoscopic total mesorectal excision. Minerva Surg 2021; 76:332-342. [PMID: 33944516 DOI: 10.23736/s2724-5691.21.08691-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Intraoperative complication during laparoscopic mesorectal excision for rectal cancer is a common complication occurring in 11% to 15% of the cases. They are probably underestimated because not systematically reported. The most frequent intraoperative complications are haemorrhage (3-7%), tumour perforation (1-4%), bowel injury (1-3%), ureter injury (1%), urogenital injury (2%), other organ injury (<1%), and anastomotic complications (1%). The mechanisms, management and prevention of vascular port injury, inferior mesenteric artery bleeding, small bowel and colon perforation, ureteral and urethral injury, pelvic nerve damage, tumour perforation and anastomotic failure are described. This review underlines the necessity to prevent intraoperative complication to avoid operative death and severe side-effects.
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Affiliation(s)
- Blanche Teste
- Department of Colorectal Surgery, Haut-Levèque Hospital, University of Bordeaux, Pessac, France
| | - Eric Rullier
- Department of Colorectal Surgery, Haut-Levèque Hospital, University of Bordeaux, Pessac, France -
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20
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Reconstruction of full-length ureter defects by laparoscopic bladder flap forming. Sci Rep 2021; 11:3970. [PMID: 33597578 PMCID: PMC7890060 DOI: 10.1038/s41598-021-83518-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 02/03/2021] [Indexed: 12/25/2022] Open
Abstract
To evaluate the safety and efficacy of laparoscopic bladder muscle flap reconstruction in the treatment of extensive ureteral avulsion.
Patients with full-length (re length > 20 cm) and upper ureteral (avulsion length > 10 cm) defects were eligible. All patients were treated with laparoscopic bladder muscle flap reconstruction. Peri-operative information and post-operative complications were recorded. The kidney function, urinary ultrasound or computed tomography (CT), sun-renal function tests emission computed tomography (ECT) and cystography after operation were recorded. Ten patients were included (7 with full-length and 3 with upper ureteral defects). Median age was 56 years and 70% of them were female. The average operation time and blood loss was 124 min and 92.2 ml. There was no treatment-related adverse effects including urinary leakage, renal colic, fever, etc. The median follow-up was 18.5 months (3–39 months). The surgery did not significantly alter the renal function and separation degree of the renal pelvis during long-term follow-up. Double J stents were removed in nine patients (90%) within six months after operation. Only one case was diagnosed with post-operative anastomotic stricture, and subsequently received laparoscopic ipsilateral nephrectomy one year after the reconstruction operation. All cases had normal voiding and pear-shaped cystography. Laparoscopic bladder flap repair is a safe and effective treatment approach together with several advantages for patients with full-length or upper ureteral avulsion.
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21
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Gupta R, Mahajan A, Mahajan M, Anand A, Masood S. Management of Genitourinary Fistulas Following Benign Gynecological and Obstetric Procedures: A Single Surgeon Experience. J Midlife Health 2021; 11:156-160. [PMID: 33384539 PMCID: PMC7718932 DOI: 10.4103/jmh.jmh_70_20] [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: 04/23/2020] [Revised: 04/28/2020] [Accepted: 05/05/2020] [Indexed: 11/20/2022] Open
Abstract
Background: Genitourinary fistula results in lot of anxiety in the suffering females. Scant literature regarding the comprehensive management of genitourinary fistula i.e. VVF and UVF is available. Objective: The aim of the study was to review a single surgeon experience in dealing with these complex situations. Material and Methods: We conducted a retrospective, institutional review board approved chart review of patients who underwent genitourinary fistula repair from Jan 2014 till Dec 2019. Of all the fistulas VVF accounted for 18 and UVF for 12 cases. Pre-operative diagnosis in these patients was based predominantly on the history, local examination and cystoscopy. Of the 18 VVF 12 were managed laparoscopically and 6 by open O'Connor's repair. Of the 12 UVF, 8 were managed laparoscopically and 4 by open ureteric reimplants. All were followed up for three months post operatively. Results: A total of 30 patients were treated since 2014 till December 2019. Average age for the VVF was 54.72 ≤ 10.9 years and that for UVF repair was 59.9 ≤ 7.6 years. Hysterectomies for benign diseases accounted for 66.66% of VVF and 91.6% of UVF. Of the VVF patients one required a ureteric reimplantation, remaining were managed with O'Connors' repair. We had one failure which was successfully repaired after 6 weeks. None of our patients with UVF repairs had a failure at three months follow-up. Conclusion: Genitourinary fistulas are a debilitating problem in females but a comprehensive approach regarding diagnosis and treatment can cure these patients.
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Affiliation(s)
- Rahul Gupta
- Department of Urology, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Arti Mahajan
- Department of Anesthesia and, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Manik Mahajan
- Department of Radiology, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Ajay Anand
- Department of Urology, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Suhail Masood
- Department of Urology, Government Medical College, Jammu, Jammu and Kashmir, India
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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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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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Cwalinski T, Polom W, Marano L, Roviello G, D’Angelo A, Cwalina N, Matuszewski M, Roviello F, Jaskiewicz J, Polom K. Methylene Blue-Current Knowledge, Fluorescent Properties, and Its Future Use. J Clin Med 2020; 9:jcm9113538. [PMID: 33147796 PMCID: PMC7693951 DOI: 10.3390/jcm9113538] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/24/2020] [Accepted: 10/30/2020] [Indexed: 12/14/2022] Open
Abstract
Methylene blue is a fluorescent dye discovered in 1876 and has since been used in different scientific fields. Only recently has methylene blue been used for intraoperative fluorescent imaging. Here, the authors review the emerging role of methylene blue, not only as a dye used in clinical practice, but also as a fluorophore in a surgical setting. We discuss the promising potential of methylene blue together with the challenges and limitations among specific surgical techniques. A literature review of PubMed and Medline was conducted based on the historical, current and future usage of methylene blue within the field of medicine. We reviewed not only the current usage of methylene blue, but we also tried to grasp its’ function as a fluorophore in five main domains. These domains include the near-infrared imaging visualization of ureters, parathyroid gland identification, pancreatic tumors imaging, detection of breast cancer tumor margins, as well as breast cancer sentinel node biopsy. Methylene blue is used in countless clinical procedures with a relatively low risk for patients. Usage of its fluorescent properties is still at an early stage and more pre-clinical, as well as clinical research, must be performed to fully understand its potentials and limitations.
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Affiliation(s)
- Tomasz Cwalinski
- Department of Surgical Oncology, Medical University of Gdansk, 80-214 Gdansk, Poland; (T.C.); (J.J.)
| | - Wojciech Polom
- Department of Urology, Medical University of Gdansk, 80-214 Gdansk, Poland; (W.P.); (M.M.)
| | - Luigi Marano
- Department of Medicine, Surgery and Neurosciences, Unit of General Surgery and Surgical Oncology, University of Siena, 53-100 Siena, Italy; (L.M.); (F.R.)
| | - Giandomenico Roviello
- Department of Health Sciences, University of Florence, viale Pieraccini 6, 50139 Florence, Italy;
| | - Alberto D’Angelo
- Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK;
| | - Natalia Cwalina
- Department of Pediatrics Ascension St. John Children’s Hospital, Detroit, MI 48236, USA;
| | - Marcin Matuszewski
- Department of Urology, Medical University of Gdansk, 80-214 Gdansk, Poland; (W.P.); (M.M.)
| | - Franco Roviello
- Department of Medicine, Surgery and Neurosciences, Unit of General Surgery and Surgical Oncology, University of Siena, 53-100 Siena, Italy; (L.M.); (F.R.)
| | - Janusz Jaskiewicz
- Department of Surgical Oncology, Medical University of Gdansk, 80-214 Gdansk, Poland; (T.C.); (J.J.)
| | - Karol Polom
- Department of Surgical Oncology, Medical University of Gdansk, 80-214 Gdansk, Poland; (T.C.); (J.J.)
- Correspondence: ; Tel.: +48-583-493-190
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Bansal A, Kumar A, Maheshwari R, Desai P, Chaturvedi S, Dassi V. Renal autotransplant for major ureteric loss: Results from median 11 years of follow-up. Turk J Urol 2020; 47:151-157. [PMID: 33085605 DOI: 10.5152/tud.2020.20371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Renal autotransplant (RA) is an underutilized procedure to treat major ureteric loss. Studies on long-term outcomes and follow-up after RA are scarce. This study aimed to report the long-term outcomes and follow-up after RA. MATERIAL AND METHODS We identified 9 patients, from 2007 to 2019, who underwent RA after major ureteric loss (where direct restoration of continuity was not possible). We collected data regarding the etiology of ureteric loss, preoperative differential renal function, method of nephrectomy (laparoscopic or open), method of anastomosing the residual ureter/pelvis to the bladder, postoperative complications, duration of hospital stay, and renal function and drainage postoperatively and until the last follow-up. Changes in renal function and/or any obstruction to urinary drainage of the ipsilateral kidney postoperatively or during follow-up were measured. The Wilcoxon matched-pairs signed-rank test was used to compare the mean creatinine values preoperatively, postoperatively, and at last follow-up (p<0.05 was considered statistically significant). RESULTS All the patients had uneventful intraoperative and postoperative periods. The mean hospital stay was 6.4 (5-8) days. The median follow-up was 132 (46-156) months. The mean preoperative serum creatinine level was 1.0 (0.7-1.7) mg/dL. The mean creatinine value postoperatively and at last follow-up had no significant difference with preoperative value (p=0.96 and 0.75, respectively). The postoperative diethylene triamine pentaacetic acid scan demonstrated good perfusion and drainage. There was no deterioration of renal function or drainage during the follow-up. CONCLUSION RA is an excellent modality to treat major ureteric loss. It preserves renal function and avoids the problems related to bowel interposition and the need for long-term follow-up.
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Affiliation(s)
- Amit Bansal
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
| | - Anant Kumar
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
| | - Ruchir Maheshwari
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
| | - Pragnesh Desai
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
| | - Samit Chaturvedi
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
| | - Vimal Dassi
- Department of Urology, Renal Transplant and Robotics, Max Super Specialty Hospital Saket, New Delhi, India
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Wang D, Sun H, Yang C, Ding D, Qian W, Yu D. Management of a Ureteral Stent Displaced Into the Abdominal Aorta: A Case Report. Urology 2020; 144:e10-e14. [DOI: 10.1016/j.urology.2020.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 11/09/2022]
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Zhenxing W, Zhaolin S, Xiushu Y, Guangheng L, Ye T, Lei S, Zhiyong S, Hongming L. Comparison of Yang-Monti ileal ureter-bladder anastomosis versus Yang-Monti ileal ureter-ureteral anastomosis for the treatment of ureteral stenosis: a randomized controlled trial in a miniature pig model. BMC Urol 2019; 19:129. [PMID: 31822266 PMCID: PMC6902414 DOI: 10.1186/s12894-019-0563-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/28/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of the present study was to establish an animal model of Yang-Monti ileal ureter-bladder anastomosis and Yang-Monti ileal ureter-ureteral anastomosis and compare the advantages and disadvantages of the two surgical methods. METHODS Fourteen 12-month-old male Chinese miniature pigs weighing 21 ± 1.38 kg were randomly divided into two groups. Group A (n = 7) underwent end-to-end anastomosis of the left Yang-Monti ileal ureter, left ileal ureter and left lower ureter; group B (n = 7) underwent anastomosis of the left Yang-Monti ileal ureter, left ileal ureter and bladder. In both groups, the contralateral kidney was removed at 1 week postoperatively. The incision length and operation time of the two groups were compared. Changes in serum creatinine and urea nitrogen were observed preoperatively, and at 2, 6 and 12 weeks postoperatively. Venous pyelography and cystography were performed at 12 weeks postoperatively to determine the ureteral patency and vesicoureteral reflux. At 12 months postoperatively, urinary culture was performed, and the diameter and histological changes of the intestinal ureter were assessed. RESULTS Surgery was successfully completed in all 14 pigs. In group A, one pig died due to an anesthetic accident, and one pig died from a lung infection on postoperative day 4. In group B, one pig died from adhesive intestinal obstruction on postoperative day 7. The overall survival rate was 78.6%, and the 11 surviving pigs had no urinary or intestinal fistulae. Compared with group B, group A had a significantly longer surgical incision (30.86 ± 2.41 cm versus 26.71 ± 3.64 cm; p = 0.01) and shorter operation time (181.29 ± 15.10 min versus 157.71 ± 20.49 min; p = 0.02). The serum creatinine and urea nitrogen concentrations did not significantly differ between groups. All pigs had normal renal function pre- and postoperatively. There was no stenosis or obstruction on venous pyelography. The narrowest diameter of the ureter was significantly smaller in group B (5.90 ± 0.30 mm) than in group A (7.26 ± 1.06 mm; p = 0.01), but no contrast agent returned to the upper urinary tract in either group. Escherichia coli was detected on urine culture. In group A, one pig had obstruction of the ureteral ureter, while another had stenosis of the lower ureteral anastomosis. In group B, one pig had pelvic and intestinal ureteral dilatation; however, all anastomoses were patent. The ileal ureteral diameter was significantly larger in group A (9.40 ± 2.35 mm) than group B (6.62 ± 0.37 mm; p = 0.02). Two pigs in group A had separation of the transitional epithelium and columnar epithelial mucosa, with granulation tissue hyperplasia. The pigs with stenosis and obstruction had smooth fibrous tissue and smooth muscle of the anastomosis. In both groups, the two types of epithelial tissue were close together, and the intestinal villi were mildly atrophied and shortened. CONCLUSIONS An animal model of Yang-Monti ileal ureter-bladder anastomosis was successfully established. Compared with Yang-Monti ileal ureter-ureteral anastomosis, Yang-Monti ileal ureter-bladder anastomosis is simpler, more reliable, and results in fewer complications.
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Affiliation(s)
- Wang Zhenxing
- Basic Medical College, Guizhou Medical University, Guiyang, 550004, China.,Department of Urology, Guizhou Provincial People's Hospital affiliated to Guizhou Medical University, Guiyang, 550002, Guizhou, China
| | - Sun Zhaolin
- Department of Urology, Guizhou Provincial People's Hospital, No. 83 East Zhongshan Road, Guiyang, 550002, Guizhou, China.
| | - Yang Xiushu
- Department of Urology, Guizhou Provincial People's Hospital, No. 83 East Zhongshan Road, Guiyang, 550002, Guizhou, China.
| | - Luo Guangheng
- Department of Urology, Guizhou Provincial People's Hospital, No. 83 East Zhongshan Road, Guiyang, 550002, Guizhou, China
| | - Tian Ye
- Department of Urology, Guizhou Provincial People's Hospital, No. 83 East Zhongshan Road, Guiyang, 550002, Guizhou, China
| | - Shen Lei
- Department of Surgical Operation Laboratory, Zunyi Medical University, No. 6 West Xuefu Road, Zunyi, Xinpu New District, China
| | - Su Zhiyong
- Department of Urology, Guizhou Medical University, No. 9 Beijing Road, Guiyang, Guizhou, China
| | - Liu Hongming
- Department of Urology, Zunyi Medical University, No. 6 Xuefu West Road, Xinpu New District, Zunyi, Guizhou, China
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Aguilera A, Rivas JG, Quintana Franco LM, Quesada-Olarte J, Carrion DM, Martínez-Piñeiro L. Ureteral injury during abdominal and pelvic surgery: immediate versus deferred repair. Cent European J Urol 2019; 72:312-318. [PMID: 31720036 PMCID: PMC6830481 DOI: 10.5173/ceju.2019.1782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 09/27/2018] [Accepted: 08/09/2019] [Indexed: 11/23/2022] Open
Abstract
Introduction The incidence of ureteral damage during abdominal surgery is <1%. Repair of these lesions can be performed immediately when the injury is detected or deferred when it has been missed. Material and methods We retrospectively reviewed ureteral injuries that required surgical repair and were made during gynaecological and general surgery procedures between the years 2004 and 2016. We compared the clinical and functional outcomes between immediate and deferred repair. Results We registered 84 lesions after 4000 abdominal procedures (2.1%). A total of 20 injuries were noted during general surgery interventions (24%) and 64 during gynaecological procedures (76%). The approach was laparoscopic in 66 of these cases and open in the other 18. Mean time of follow-up was 24 months. Immediate repair was accomplished in 35 cases (41%) and deferred in 49 (59%), with a median time to repair of 5.7 months. The laparoscopic approach was more frequent in deferred repairs (76% vs. 16%), while the open approach was more common in immediate repairs (54% vs. 40%). Procedures used for ureteral repair included 62 ureteral reimplantations using a psoas hitch technique, 8 end-to-end ureteral anastomoses, 6 ureterorraphies and 6 ureteral catheterisations. Two nephrectomies were also performed. Success rates and complications were similar for both immediate and deferred procedures (68% vs. 73% and 26% vs. 23% respectively, both p >0.05). Conclusions The occurrence of ureteral injury during abdominal surgery is low. Immediate repair is preferred when feasible, but delayed recognition of the injury is more common. We found no difference between immediate and deferred repair in terms of success rates.
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Affiliation(s)
- Alfredo Aguilera
- Department of Urology, La Paz University Hospital, Madrid, Spain
| | - Juan Gomez Rivas
- Department of Urology, La Paz University Hospital, Madrid, Spain
| | | | | | - Diego M Carrion
- Department of Urology, La Paz University Hospital, Madrid, Spain
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29
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Farnam RW, Arms RG, Klaassen AH, Sorger JM. Intraoperative ureter visualization using a near-infrared imaging agent. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-8. [PMID: 31215195 PMCID: PMC6977010 DOI: 10.1117/1.jbo.24.6.066004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/17/2019] [Indexed: 05/06/2023]
Abstract
The fluorescent imaging agent IS-001 was determined to be well tolerated in all subjects and has the potential to provide ureter visualization throughout minimally invasive hysterectomy procedures. This study was conducted to evaluate clinical safety and efficacy of a real-time ureter visualization technique for use during hysterectomy surgery. The study drug appears safe, is renally excreted, and allows enhanced ureter visualization when imaged with a clinically approved near-infrared sensitive endoscope. This is a first-in-human study showing preliminary results that the drug is safe and effective during surgery for improved ureter visualization.
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Affiliation(s)
- Richard W. Farnam
- Texas Urogynecology and Laser Surgery Center, Las Palmas Medical Center, El Paso, Texas, United States
| | - Richard G. Arms
- Texas Tech University Health Sciences Center, Department of Obstetrics and Gynecology, El Paso, Texas, United States
| | | | - Jonathan M. Sorger
- Intuitive Surgical, Sunnyvale, California, United States
- Address all correspondence to Jonathan Sorger, E-mail:
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30
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Park SH, Kim KH. Isolated ureteral injury following a stab wound: A case report. Trauma Case Rep 2019; 21:100197. [PMID: 31011616 PMCID: PMC6463216 DOI: 10.1016/j.tcr.2019.100197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2019] [Indexed: 11/16/2022] Open
Abstract
Ureteral injuries reportedly occur in 2-5% of gunshot wounds to the abdomen, and are even rarer in abdominal stab wounds. Ureteral injuries are usually silent and produce no early signs or symptoms. An unrecognized or mismanaged ureteral injury can lead to significant morbidity and mortality. A 34-year-old woman was transferred to our emergency department from another hospital after removal of a knife on her abdomen. She was diagnosed with isolated ureter injury. An uretero-ureterostomy was performed after stenting of the ureteral catheter. The postoperative course was uneventful, and the patient was discharged on postoperative day 12.
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Affiliation(s)
- Sang Hyun Park
- Department of Urology, Haeundae Paik Hospital, University of Inje College of Medicine, Busan, Republic of Korea
| | - Ki Hoon Kim
- Department of Surgery, Haeundae Paik Hospital, University of Inje College of Medicine, Busan, Republic of Korea
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31
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Abstract
The proximity of the colon and rectum to the organs of the urologic system virtually ensures that iatrogenic urologic injuries become a distinct possibility during complex colorectal surgical procedures. An intimate knowledge of urogenital anatomy as well as strategies for identification and repair of potential injuries is of paramount importance. Attention is mandated when operating within the narrow confines of the pelvis, as this is where these structures are most at risk. The ureters are at highest risk of injury, followed by the bladder and urethra. The nature of these injuries encompasses both functional and mechanical morbidities. Patient factors, including prior pelvic surgery, radiation, inflammatory bowel disease, infectious processes, and urogenital abnormalities all increase the risk of injury. As colorectal surgeons encounter an increasing number of patients with the above risk factors, it is important to be familiar with the various urologic injury patterns, their diagnosis, and appropriate management.
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Affiliation(s)
- Marco Ferrara
- Department of Colon and Rectal Surgery, Ochsner Medical Center, New Orleans, Louisiana
| | - Brian R Kann
- Department of Colon and Rectal Surgery, Ochsner Medical Center, New Orleans, Louisiana
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32
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Yellinek S, Krizzuk D, J Nogueras J, D Wexner S. Ureteral Injury During Colorectal Surgery: Two Case Reports and a Literature Review. JOURNAL OF THE ANUS RECTUM AND COLON 2018; 2:71-76. [PMID: 31559346 PMCID: PMC6752145 DOI: 10.23922/jarc.2017-052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/09/2018] [Indexed: 12/15/2022]
Abstract
Iatrogenic ureteral injury (IUI) is a dreaded complication of abdominopelvic surgery. Although rare, it is associated with severe consequences. This complication most commonly occurs during gynecological procedures but may also occur during colorectal surgeries. We present two cases of IUI in patients in whom the ureteric stents were electively placed. The first case was a 71-year-old male with no significant medical history. The patient underwent an elective laparoscopic sigmoidectomy for complicated diverticulitis. During the procedure, a proximal IUI occurred, and was recognized and repaired. The second case occurred in a 68-year-old male with a history of multiple complicated abdominal surgeries. The patient underwent a second redo low anterior resection for a long preanastomotic stricture. The IUI occurred in the right fibrosed presacral plane, approximately 3 cm proximal to the bladder. The ureter was reimplanted to the bladder during the same procedure. We will also present a literature review of IUI, including the risk factors, intraoperative prevention, and repair options.
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Affiliation(s)
- Shlomo Yellinek
- Department of Colorectal Surgery, Cleveland Clinic Florida, Weston, FL
| | - Dimitri Krizzuk
- Department of Colorectal Surgery, Cleveland Clinic Florida, Weston, FL
| | - Juan J Nogueras
- Department of Colorectal Surgery, Cleveland Clinic Florida, Weston, FL
| | - Steven D Wexner
- Department of Colorectal Surgery, Cleveland Clinic Florida, Weston, FL
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Alwahab A, AlAwadhi A, Nugud AAA, Nugud SAE. Worst Case Scenarios! Complications Related to Hernial Disease. HERNIA SURGERY AND RECENT DEVELOPMENTS 2018. [DOI: 10.5772/intechopen.76079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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34
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Bhattar R, Tomar V, Yadav S, Maheshwari A. Comparison of safety and efficacy of tamsulosin, tadalafil, combinations and deflazacort in lower ureteric orifice negotiation by large size ureteroscope (8/9.8 Fr) prior to intracorporeal lithotripsy. AFRICAN JOURNAL OF UROLOGY 2018. [DOI: 10.1016/j.afju.2018.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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35
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Barnes TG, Hompes R, Birks J, Mortensen NJ, Jones O, Lindsey I, Guy R, George B, Cunningham C, Yeung TM. Methylene blue fluorescence of the ureter during colorectal surgery. Surg Endosc 2018; 32:4036-4043. [PMID: 29785456 PMCID: PMC6096537 DOI: 10.1007/s00464-018-6219-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/09/2018] [Indexed: 12/20/2022]
Abstract
Background Iatrogenic ureteric injury is a serious complication of colorectal surgery. Incidence is estimated to be between 0.3 and 1.5%. Of all ureteric injuries, 9% occur during colorectal procedures. Ureteric stents are utilised as a method to reduce the risk of injury; however, these are not without risk and do not guarantee prevention of injury. Fluorescence is a safe and effective alternative for intraoperative ureteric localisation. This proof of principle study aims to assess the use of methylene blue to fluoresce the ureter during colorectal surgery. Method Patients undergoing elective colorectal surgery were included in this open label, non-randomised study. Methylene blue was administered intravenously at varying doses (0.25–1 mg/kg) over 5 min, 10–15 min prior to entering ‘ureteric territory.’ Fluorescence was assessed using the PINPOINT Deep Red laparoscopic system at fixed time points by the surgeon and an independent observer. Results 42 patients received methylene blue; 2 patients were excluded from analysis. Of the 69 ureters assessed, 64 were seen under fluorescence. Of these, 14 were not visible under white light. 50 ureters were observed with both fluorescence and white light with 14 of these being seen earlier with fluorescence. In ten cases, fluorescence revealed the ureter to be in a different location than suspected. Conclusion Fluorescence is a promising method to allow visualisation of the ureter, where it is not identified easily under standard operative conditions, thereby improving safety and reducing operative time and difficulty. Electronic supplementary material The online version of this article (10.1007/s00464-018-6219-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thomas G Barnes
- Nuffield Department of Surgery, University of Oxford, Oxford, UK. .,Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK. .,Nuffield Department of Surgery, John Radcliffe Hospital, Headington, Oxford, UK.
| | - Roel Hompes
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Jacqueline Birks
- Centre for Statistics in Medicine, University of Oxford, Oxford, UK
| | - Neil J Mortensen
- Nuffield Department of Surgery, University of Oxford, Oxford, UK.,Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Oliver Jones
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Ian Lindsey
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Richard Guy
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Bruce George
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Chris Cunningham
- Department of Colorectal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Trevor M Yeung
- Nuffield Department of Surgery, University of Oxford, Oxford, UK
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36
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Tonolini M. Multidetector CT of expected findings and complications after hysterectomy. Insights Imaging 2018; 9:369-383. [PMID: 29626286 PMCID: PMC5990996 DOI: 10.1007/s13244-018-0610-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 12/15/2022] Open
Abstract
Abstract Indicated to manage a variety of disorders affecting the female genital tract, hysterectomy represents the second most common gynaecological operation after caesarean section. Performed via an open, laparoscopic or vaginal approach, hysterectomy is associated with non-negligible morbidity and occasional mortality. Iatrogenic complications represent a growing concern for gynaecologists and may result in prolonged hospitalisation, need for interventional procedures or repeated surgery, renal impairment and malpractice claims. As a result, radiologists are increasingly requested to investigate patients with suspected complications after hysterectomy. In the vast majority of early postoperative situations, multidetector CT represents the ideal modality to comprehensively visualise the surgically altered pelvic anatomy and to consistently triage the varied spectrum of possible injuries. This pictorial review provides an overview of current indications and surgical techniques, illustrates the expected CT appearances after recent hysterectomy, the clinical and imaging features of specific complications such as lymphoceles, surgical site infections, haemorrhages, urinary tract lesions and fistulas, bowel injury and obstruction. Our aim is to increase radiologists’ familiarity with normal post-hysterectomy findings and with post-surgical complications, which is crucial for an appropriate choice between conservative, interventional and surgical management. Teaching points • Hysterectomy via open, laparoscopic or vaginal route is associated with non-negligible morbidity. • Multiplanar CT imaging optimally visualises the surgically altered pelvic anatomy. • Familiarity with early post-hysterectomy CT and expected findings is warranted. • Complications encompass surgical site infections, haemorrhages, bowel injury and obstruction. • Urological complications include ureteral leakage, bladder injury, urinomas and urinary fistulas.
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Affiliation(s)
- Massimo Tonolini
- Department of Radiology, "Luigi Sacco" University Hospital, Via G.B. Grassi 74, 20157, Milan, Italy.
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Bier S, Amend B, Wagner E, Rausch S, Mischinger J, Neumann E, Stühler V, Hennenlotter J, Todenhoefer T, Stenzl A, Bedke J, Kruck S. The thermoexpandable nitinol stent: a long-term alternative in patients without nephropathy or malignancy. Scand J Urol 2017. [PMID: 28644054 DOI: 10.1080/21681805.2017.1331262] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the long-term outcome of a thermoexpandable nickel-titanium nitinol ureteral stent (Memokath 051™) and to identify individual risk factors for failure. MATERIALS AND METHODS This retrospective single-centre study included 125 patients who underwent implantation of the self-expandable Memokath 051 stent. Complications, indwelling time and reason for explantation were recorded. Analyses were stratified by gender, age, body mass index, American Society of Anesthesiologists score, estimated glomerular filtration rate (eGFR), side, localization and cause of the stricture. RESULTS In total, 91 out of 125 patients (73%) were available for analysis. Median indwelling time was 355 days (range 7-2125 days). Most stents were removed because of dislocation (42%) or occlusion (40%). Stent removal was rarely performed because of infection (3%). Patients with sufficient renal function (eGFR ≥60 ml/min/1.73 m²) showed increased indwelling times compared with those with nephropathy (386 vs 317 days; p < 0.01). Patients with active malignant disease showed reduced patency time compared with strictures of benign origin (455 vs 190 days; p < 0.01). CONCLUSIONS This thermoexpandable nitinol stent offers safe mid-term treatment of ureteric strictures, especially in patients without active malignancy and with good renal function.
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Affiliation(s)
- Simone Bier
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Bastian Amend
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Elena Wagner
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Steffen Rausch
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | | | - Eva Neumann
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Viktoria Stühler
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Joerg Hennenlotter
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Tilman Todenhoefer
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Arnulf Stenzl
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Jens Bedke
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
| | - Stephan Kruck
- a Department of Urology , Eberhard-Karls-University , Tuebingen , Germany
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Rouhani MJ, Abboudi H, Gibbons N, El-Husseiny T. Endourologic Management of an Iatrogenic Ureteral Avulsion Using a Thermoexpandable Nickel-Titanium Alloy Stent (Memokath 051). J Endourol Case Rep 2017; 3:57-60. [PMID: 28560352 PMCID: PMC5446609 DOI: 10.1089/cren.2017.0019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: The use of ureteroscopy in the management of urolithiasis is well established. Ureteral avulsion is a rare but challenging complication of the procedure. Postureteral injury strictures are a common result of such injuries and are typically managed with reconstructive surgery or endoscopically with polymer stent. This case represents the first effective management of ureteral avulsion and subsequent ureteral stricture using a Memokath ureteral stent. Case Presentation: A 54-year-old gentleman presented to the Department of Urology with right loin pain as a result of right renal calculi, previously treated with extracorporeal shockwave lithotripsy. The patient was investigated with ultrasonography and noncontrast CT of his urinary tract, revealing mild right-sided hydroureteronephrosis and two right proximal ureteral stones, measuring 9 and 4 mm, respectively. He underwent a right semirigid ureteroscopy and laser stone fragmentation with complete stone clearance, but on withdrawal of the ureteroscope, a right ureteral injury occurred with ureteral mucosal avulsion extending from the L3/L4 vertebrae to the right vesicoureteral junction. Upon consideration of several options for management of this ureteral avulsion, the patient opted for endourologic stenting. After 10 months, the patient developed a ureteral stricture as a result of the avulsion. He was troubled with stent-related symptoms and wanted to avoid reconstructive surgery and, therefore, opted for a Memokath ureteral stent. The patient recovered well with excellent renal function and drainage on subsequent mercaptoacetyl-triglycyl renogram. Conclusion: Ureteral avulsion is a rare but important complication of ureteroscopy with numerous options available for management. Discussions should be had with the patient to weigh the various options, and metallic stents should be considered in the long-term management of such injuries and their sequel.
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Affiliation(s)
- Maral J Rouhani
- Department of Urology, Charing Cross Hospital, London, United Kingdom
| | - Hamid Abboudi
- Department of Urology, Charing Cross Hospital, London, United Kingdom
| | - Norma Gibbons
- Department of Urology, Charing Cross Hospital, London, United Kingdom
| | - Tamer El-Husseiny
- Department of Urology, Charing Cross Hospital, London, United Kingdom
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Jiao D, Li Z, Li Z, Shui S, Han XW. Flat detector cone beam CT-guided nephrostomy using virtual navigation in patients with iatrogenic ureteral injury. Radiol Med 2017; 122:557-563. [PMID: 28332142 DOI: 10.1007/s11547-017-0751-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 03/06/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE To evaluate the feasibility of flat detector cone beam computed tomography (CBCT)-guided nephrostomy using virtual navigation in patients with iatrogenic ureteral injury. MATERIALS AND METHODS A retrospective review of percutaneous nephrostomy (PN) revealed the use of CBCT with 3D virtual navigation guidance in 42 procedures (40 patients) for patients with iatrogenic ureteral injury. All procedures were shown as second-line interventions after failed ultrasound-guided nephrostomy. Data on technical success rate, procedure time, puncture performance, radiation exposure, complications, and clinical success were collected. RESULTS The technical success rate was 95.2% (40/42). The mean puncture performance score was 4.4 ± 1.0, and the procedure time was 25.2 ± 3.1 min, resulting in a mean effective exposure dose of 5.9 ± 2.3 mSv. There were no serious complications. During the mean follow-up periods of 11.4 months (range 6-19), clinical success rates following drainage were 72.5% (29/40), and ten cases (25%) had secondary surgical treatments. CONCLUSION CBCT with 3D virtual navigation is a feasible technique for PN with reasonable exposure dose and can serve as a second-line intervention after failed ultrasound guidance.
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Affiliation(s)
- Dechao Jiao
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Zongming Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Zhiguo Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Shaofeng Shui
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Xin-Wei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.
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40
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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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Chung D, Briggs J, Turney BW, Tapping CR. Management of iatrogenic ureteric injury with retrograde ureteric stenting: an analysis of factors affecting technical success and long-term outcome. Acta Radiol 2017; 58:170-175. [PMID: 27012280 DOI: 10.1177/0284185116638568] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Iatrogenic ureteral injuries arise as serious complication following obstetrics, gynecological, general, and urological surgery with incidence in the range of 0.5-10%. Retrograde placement of double-J ureteric stent is a possible treatment option if the injury is not recognized at the time of surgery. Purpose To assess technical success and long-term outcome associated with retrograde ureteric stent insertion for iatrogenic ureteric injury. Material and Methods Between 1999 and 2011, 26 patients with initially unrecognized iatrogenic ureteric injury underwent initial management with retrograde ureteric stenting. Full case-notes were available for review in 25 patients. Results The mean interval from injury to attempted stenting was 19.4 days. Successful retrograde ureteric stenting was achieved in 21/25 patients (81%). Retrograde stenting failed in four patients, and nephrostomy followed by alternative procedures were performed instead. At a median follow-up interval of 9.7 months, normal anatomy was demonstrated on 12/21 patients (57%) and a stricture was observed in 6/21 patients (28%) with three requiring surgical intervention. Conclusion Retrograde stenting is a safe and efficient initial management in patients with iatrogenic ureteric injuries.
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Affiliation(s)
- Daniel Chung
- Oxford University Hospital NHS Foundation Trust, Oxford, UK
| | - James Briggs
- Oxford University Hospital NHS Foundation Trust, Oxford, UK
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Patil SB, Guru N, Kundargi VS, Patil BS, Patil N, Ranka K. Posthysterectomy ureteric injuries: Presentation and outcome of management. Urol Ann 2017; 9:4-8. [PMID: 28216920 PMCID: PMC5308036 DOI: 10.4103/0974-7796.198838] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Purpose: The purpose of the study was to evaluate the presentation and management of posthysterectomy ureteral injuries. Patients and Methods: Fourteen patients with ureteric injuries after hysterectomy for benign diseases were evaluated. The diagnosis was done based on clinical presentation, intravenous urogram, computed tomography, cystoscopy, and retrograde pyelogram (RGP) depending on the clinical situation. Results: Sixteen iatrogenic ureteric injuries in 14 patients over a 2-year period were evaluated. Hysterectomy was the cause of injury in all the cases, 12 abdominal and 2 were vaginal. Two patients presented with anuria, one had ureteric, and bladder injury with hemoperitoneum underwent emergency laparotomy and bilateral ureteral reimplantation. Another patient underwent RGP followed by stenting on the right side, left side unable to put stent so percutaneous nephrostomy (PCN) was done followed by antegrade stenting later. Two patients presented with septicemia and pyonephrosis were managed initially with PCN followed by balloon dilatation and JJ stenting. RGP and retrograde stenting was done in seven of the remaining ten patients and ureteric reimplantation in three patients. Conclusion: Patient with ureteric injury should be evaluated and intervened at the earliest. Patients presenting early, within 2 weeks after hysterectomy have higher chances of success with endourological procedures, obviating the need for open surgery.
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Affiliation(s)
- S B Patil
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
| | - Nilesh Guru
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
| | - V S Kundargi
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
| | - B S Patil
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
| | - Nikhil Patil
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
| | - Kshitiz Ranka
- Department of Urology, Shri B. M. Patil Medical College and Hospital Research Centre, Bijapur, Karnataka, India
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Imani R, Pazoki M, Zupančič D, Kreft ME, Kralj-Iglič V, Veranič P, Iglič A. Biocompatibility of different nanostructured TiO 2 scaffolds and their potential for urologic applications. PROTOPLASMA 2016; 253:1439-1447. [PMID: 26497540 DOI: 10.1007/s00709-015-0896-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 10/06/2015] [Indexed: 06/05/2023]
Abstract
Despite great efforts in tissue engineering of the ureter, urinary bladder, and urethra, further research is needed in order to improve the patient's quality of life and minimize the economic burden of different lower urinary tract disorders. The nanostructured titanium dioxide (TiO2) scaffolds have a wide range of clinical applications and are already widely used in orthopedic or dental medicine. The current study was conducted to synthesize TiO2 nanotubes by the anodization method and TiO2 nanowires and nanospheres by the chemical vapor deposition method. These scaffolds were characterized with scanning electron microscopy (SEM) and X-ray diffraction (XRD) methods. In order to test the urologic applicability of generated TiO2 scaffolds, we seeded the normal porcine urothelial (NPU) cells on TiO2 nanotubes, TiO2 nanowires, TiO2 nanospheres, and on the standard porous membrane. The viability and growth of the cells were monitored everyday, and after 3 weeks of culturing, the analysis with scanning electron microscope (SEM) was performed. Our results showed that the NPU cells were attached on all scaffolds; they were viable and formed a multilayered epithelium, i.e., urothelium. The apical plasma membrane of the majority of superficial NPU cells, grown on all three different TiO2 scaffolds and on the porous membrane, exhibited microvilli; thus, indicating that they were at a similar differentiation stage. The maximal caliper diameter measurements of superficial NPU cells revealed significant alterations, with the largest cells being observed on nanowires and the smallest ones on the porous membrane. Our findings indicate that different nanostructured TiO2 scaffolds, especially nanowires, have a great potential for tissue engineering and should be further investigated for various urologic applications.
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Affiliation(s)
- Roghayeh Imani
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, Ljubljana, Slovenia
- Laboratory of Clinical Biophysics, Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, Ljubljana, Slovenia
| | - Meysam Pazoki
- Department of Chemistry, Ångström Laboratory, Physical Chemistry, Uppsala University, Box 523, SE 75120, Uppsala, Sweden
| | - Daša Zupančič
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana, Slovenia
| | - Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana, Slovenia
| | - Veronika Kralj-Iglič
- Laboratory of Clinical Biophysics, Faculty of Health Sciences, University of Ljubljana, Zdravstvena 5, Ljubljana, Slovenia
| | - Peter Veranič
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana, Slovenia
| | - Aleš Iglič
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, Ljubljana, Slovenia.
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Başaranoğlu S, Deregözü A, Köroğlu N, Kalkan M, Şahin C, Kadanalı S. Early and Late Diagnosis of Iatrogenic Urinary Tract Injuries During Obstetric and Gynecological Operations. JOURNAL OF CLINICAL AND EXPERIMENTAL INVESTIGATIONS 2016. [DOI: 10.5799/jcei.328617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Yakupoglu YK, Aki FT, Kordan Y, Ozden E, Tonyali S, Bostanci Y, Vuruskan H, Bilen CY, Sarikaya S. Renal Autotransplantation at Three Academic Institutions in Turkey. Urol Int 2016; 97:466-472. [PMID: 27505010 DOI: 10.1159/000448482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 07/18/2016] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The objective of this study is to present the experience of 3 institutions performing renal autotransplantation (RAT) and to discuss surgical techniques employed and the results in the light of the medical literature. MATERIALS AND METHODS A total of 14 patients (11 male and 3 female) with a mean age of 47 ± 8 years (35-61 years), who underwent RAT procedure at 3 different institutions between October 2006 and November 2014, in Turkey, were evaluated retrospectively. Indications for RAT procedure are ureteral avulsion, renal artery aneurysm and intimal dissection caused by percutaneous transluminal renal artery angioplasty (PTRA). Twelve patients with ureteral avulsion, 1 patient with renal artery aneurysm and 1 patient with intimal dissection caused by PTRA were followed-up for 103 months. Seven (50%) open and 7 (50%) laparoscopic nephrectomies were performed. Nine patients (64.3%) were right-sided and 5 patients (35.7%) were left-sided. Complications of grade III and above as per Clavien-Dindo classification were assessed. RESULTS Mean time from injury to RAT was 21.2 ± 40.1 days. However, 5 (35.7%) patients were treated on the same day of the injury. As per Clavien-Dindo classification, 2 (14.2%) grade IVa and 1 (7.1%) grade IIIa complications were reported. However, no significant correlation was observed between the complications and graft loss regarding type and side of the nephrectomy performed (p = 0.462 and p = 0.505, respectively) and timing of the intervention (p = 0.692). CONCLUSION RAT is a safe procedure in combination with minimally invasive laparoscopic technique in carefully selected patients; however, it requires expertise and proficiency in laparoscopy, reconstructive urology and transplantation. Nevertheless RAT should be considered as the last resort, when other modalities fail.
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Althumairi AA, Efron JE. Genitourinary Considerations in Reoperative and Complex Colorectal Surgery. Clin Colon Rectal Surg 2016; 29:145-51. [PMID: 27247540 PMCID: PMC4882184 DOI: 10.1055/s-0036-1580629] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Genitourinary structures are at risk of injury during colorectal surgery. The incidence of injury is low; however, the risk is higher in cases involving severe inflammatory or infectious processes, locally advanced or recurrent cancer, previous radiation, and reoperation. Consideration of the anatomical relationship between the genitourinary system, and the colon and rectum is crucial to avoid injuries. Intraoperative diagnostic techniques such as intravenous pyelogram (IVP), fluoroscopic cystogram, or retrograde urethrogram can aid in identifying suspected injuries. Early recognition and repair of injuries decrease the morbidity of an injury. Repair of injuries depends on the location and extent of the injury. Simple injuries may be repaired primarily, while complex injuries may require more advanced repairs such as a flap reconstruction.
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Affiliation(s)
- Azah A. Althumairi
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jonathan E. Efron
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Tardu A, Kayaalp C, Ertugrul I, Yagci MA. Identification of Ureter during Colorectal Surgery Cannot Always Avoid Ureteral Injury: Duplicated Collecting System. Am Surg 2015. [DOI: 10.1177/000313481508101110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ali Tardu
- Department of Surgery Inonu University Malatya, Turkey
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Shilo Y, Pichamuthu JE, Averch TD, Vorp DA. Evaluation of the tensile strength of the human ureter--preliminary results. J Endourol 2015; 28:1470-3. [PMID: 25343358 DOI: 10.1089/end.2014.0226] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Ureteral injuries such as avulsion are directly related to mechanical damage of the ureter. Understanding the tensile strength of this tissue may assist in prevention of iatrogenic injuries. Few published studies have looked at the mechanical properties of the animal ureter and, of those, none has determined the tensile strength of the human ureter. Therefore, the purpose of this work was to determine the tensile strength of the human ureter. METHODS We harvested 11 human proximal ureters from patients who were undergoing nephrectomy for either kidney tumors or nonfunctioning kidney. The specimens were then cut into multiple circumferentially and longitudinally oriented tissue strips for tensile testing. Strips were uniaxially stretched to failure in a tensile testing machine. The corresponding force and displacement were recorded. Finally, stress at failure was noted as the tensile strength of the sample. Circumferential tensile strength was also compared in the proximal and distal regions of the specimens. RESULTS The tensile strength of the ureter in circumferential and longitudinal orientations was found to be 457.52±33.74 Ncm(-2) and 902.43±122.08 Ncm(-2), respectively (P<0.001). The circumferential strength in the proximal portion of the ureter was 409.89±35.13 Ncm(-2) in comparison with 502.89±55.85 Ncm(-2) in the distal portion (P=0.08). CONCLUSIONS The circumferential tensile strength of the ureter was found to be significantly lower than the longitudinal strength. Circumferential tensile strength was also lower with more proximal parts of the ureter. This information may be important for the design of "intelligent" devices and simulators to prevent complications.
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Affiliation(s)
- Yaniv Shilo
- 1 Department of Urology, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
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Najafi Z, Tieu T, Mahajan AM, Schwartz BF. Significance of Extraction Forces in Kidney Stone Basketing. J Endourol 2015; 29:1270-5. [PMID: 26054796 DOI: 10.1089/end.2015.0371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Ureteroscopic stone extraction devices are effective tools in the management of urolithiasis, but on occasion, their improper use can cause injury to the ureter. Avulsion and perforation of the ureter as a result of excessive forces on the extraction device are some of the more serious complications of this treatment. MATERIALS AND METHODS In this article, avulsion and perforation forces were measured by two different test setups. Eleven clinicians were asked to apply three ranges of forces (safe, cautious, and dangerous). RESULTS The output force measurements were recorded and plotted for further analysis. The maximal average perforation forces were 7.13±2.36 N in the benchtop tests and 7.07±2.20 N in the ex-vivo porcine tests (P=0.54). The maximal average avulsion forces were measured to be 10.14±2.01 N in the benchtop tests. Although the average forces were similar in the proximal and distal parts of the ureter (P=0.27), higher values were recorded for the distal part. The operative time was noted to be significantly different in the safe and cautious force regions (P=0.006). The average forces were higher in the benchtop tests compared with the porcine ureter tests. The extraction forces were measured and were noted to be significantly different for attending physicians and residents. The results suggest the need for force feedback training for residents. CONCLUSION The findings can be used to design a "smart device" that can provide visual force feedback to clinicians while they are operating, leading to improved patient outcome.
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Affiliation(s)
- Zahra Najafi
- 1 Department of Biomedical Engineering, The University of Akron , Akron, Ohio
| | - Thomas Tieu
- 2 Division of Urology, Southern Illinois University School of Medicine , Springfield, Illinois
| | - Ajay M Mahajan
- 1 Department of Biomedical Engineering, The University of Akron , Akron, Ohio
| | - Bradley F Schwartz
- 2 Division of Urology, Southern Illinois University School of Medicine , Springfield, Illinois
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Lodh B, Singh KA, Sinam RS. Role of steroidal anti-inflammatory agent prior to intracorporeal lithotripsy under local anesthesia for ureterovesical junction calculus: A prospective randomized controlled study. Urol Ann 2015; 7:188-92. [PMID: 25835035 PMCID: PMC4374257 DOI: 10.4103/0974-7796.150477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 03/01/2014] [Indexed: 11/27/2022] Open
Abstract
Objective: The objective of the following study is to assess the effect of steroidal anti-inflammatory agent on the outcome of ureterorenoscopic lithotripsy (URSL) for ureterovesical junction (UVJ) calculus. Settings and Design: This was a prospective randomized controlled study conducted at the Department of Urology, Regional Institute of Medical Sciences, Imphal. Subjects and Methods: One hundred and twenty-six patients requiring ureteroscopic lithotripsy for UVJ calculus were randomly assigned into two groups. The study group received tablet deflazacort 30 mg once a day for 10 days prior to the procedure, whereas the control group did not receive such treatment. Parameters with respect to the outcome of the procedure were recorded for all patients in both groups. Statistical Analysis Used: Fisher's exact and independent t-test was used to compare the outcome between the groups where P < 0.05 was considered to be statistically significant. Results: There was significant statistical difference (P - 0.016) on the endoscopic appearance of the region of ureteric orifice in patients receiving steroidal anti-inflammatory agent compared with control. Severe procedure related pain and mean operative time was less in the study group compared to control (P - 0.020 and 0.031, respectively). Re-treatment rates in the study group were lower than the control group (4.76% vs. 17.46%) and found to be statistically significant (P - 0.044). It is found that computed tomography (CT) appearance (r - 0.399) and stone size (r - 0.410) strongly correlate with the endoscopic findings of the region of UVJ (P - 0.001). Conclusions: Inflamed and or obliterated ureteric orifice is the major constraints for stone clearance at ureterovesical junction. The present study showed the administration of tablet deflazacort (a steroidal anti-inflammatory agent) significantly improves the outcome of URSL under local anesthesia. We strongly recommend its use prior to URSL for UVJ calculus, especially for stone size ≥10.24 mm and on CT evidence of prominent soft tissue swelling at the UVJ.
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Affiliation(s)
- Bijit Lodh
- Department of Urology, Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Kaku Akoijam Singh
- Department of Urology, Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Rajendra Singh Sinam
- Department of Urology, Regional Institute of Medical Sciences, Imphal, Manipur, India
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