Urinary Extravasation Research Articles

Treatment of Renal Capsule Lesion in a Transplanted Kidney: A Case Report and Literature Review

Expanded donor criteria have been established to reduce organ wastage, as various factors can lead the disposal of kidneys, such as anatomical abnormalities, traumatic injuries, and iatrogenic injuries during organ retrieval surgery. We report a case of kidney transplantation in which a capsular lesion was identi!ed and repaired during organ preparation (back table) and review of the literature regarding transplant kidney injuries. A diabetic and hypertensive 52-year-old patient with chronic kidney disease undergoing dialysis therapy for 2 years was admitted for a deceased donor kidney transplant. "e donor was a 35-year-old man with brain death secondary to traumatic brain injury in a car accident. During the kidney preparation on the back table, a capsular lesion was visualized on the upper pole of the right kidney. Continuous suture of the renal capsule was performed using a 3-0 CatGut suture to correct the defect and reconstruct the renal surface. After renal reperfusion, no active bleeding was observed from the sutured area. "e patient had a good postoperative course with no complications. "e main complications associated with capsular lesions and complete capsular denudation are bleeding and hematoma formation, as well as urinary and lymphatic extravasation through the exposed renal parenchyma. Treatment may involve direct cauterization using electrocautery or argon plasma, or the use of hemostatic agents. Successful repair of capsular lesions not only prevents complications such as bleeding during reperfusion and urinary !stulae but also plays a crucial role in expanding the pool of organs available for transplantation.

Clinical application and efficacy analysis of robot-assisted laparoscopic tumor enucleation combined with tumor aspiration in the treatment of renal hilar angiomyolipoma

BackgroundFor renal hilar angiomyolipoma, general surgical resection is often quite challenging. The aim of this study is to evaluate the safety and efficacy of an innovative robot-assisted laparoscopic strategy that combines tumor enucleation with tumor aspiration in the treatment of renal hilar angiomyolipoma.MethodsThe clinical data of 38 patients with renal hilar angiomyolipoma who went through robotic tumor enucleation combined with tumor aspiration in the Department of Urology, the Affiliated Hospital of Nanjing University Medical School, from December 2019 to December 2022 were retrospectively analyzed. The basic characteristics, the perioperative variables, intraoperative procedures, and postoperative complications were all recorded. Patients were followed up to evaluate the angiomyolipoma recurrence and the renal function by urologic CT or ultrasound and renal function tests.ResultsAll surgeries were successfully completed without conversion to radical nephrectomy or open surgery. One patient developed urinary extravasation 10 days after surgery, and was readmitted to the hospital for transurethral ureteral stenting considering the injury of the renal collecting system. The median operative time was 181.5 (123.8-206.3) min, the warm ischemia time was 20.0 (17.3–24.0) min, the blood loss was 125 (100.0-262.5) ml, and no patients received blood transfusion during and after surgery. The median hospitalization time was 7.0 (6.0–9.0) days, and the duration of indwelling drainage tube was 2.0 (2.0–3.0) days. The serum creatinine (Scr) on the first day, 3 months, and 6 months after surgery were 55.5 (50.8–62.8) µmol/L, 55.5 (48.0–62.0) µmol/L and 54.0 (51.8–63.5) µmol/L, respectively, and there was no significant difference compared with the preoperative level 56.0 (47.8–60.3) µmol/L. All patients were followed up after surgery, and the urinary CT scan or renal color doppler ultrasound, and renal function were reexamined. The median follow-up time of all patients was 19.0 (14.75-33.0) months, and no local recurrence of angiomyolipoma was seen in all patients.ConclusionsThe surgical strategy of robot-assisted laparoscopic tumor enucleation combined with tumor aspiration is safe and effective in the treatment of renal hilar angiomyolipoma.

Patient-reported outcomes after one-stage neourethral reconstruction in transmen with phalloplasty-associated strictures and fistulas

IntroductionUrethral strictures and fistulas arising after gender-affirming surgery in transmen require meticulous management strategies. This study evaluates the safety and efficacy of urethral reconstruction and patient satisfaction post-surgery.MethodsA retrospective analysis examined peri- and postoperative data from transmen undergoing urethral reconstruction for urethral fistula and/or strictures at the distal urethral anastomosis between December 2017 and April 2023. Follow-up involved clinical examinations, uroflowmetry, and voiding cystourethrography. Patient satisfaction and quality of life were assessed using USS PROM and ICIQ-S questionnaires.ResultsAmong 25 patients, 88% (n = 23) had urethral fistulas, and 48% (n = 12) had urethral strictures. 41% of fistula patients also had strictures, while 75% of stricture patients had concurrent fistulas. Previous surgeries for fistula or stricture repair were noted in 26% of cases. Techniques for stricture included modified flap (50%), buccal oral mucosal grafting (33%), and primary anastomosis (17%). Post-operative urethrogram revealed urethral strictures in 15% (n = 3) and urinary extravasation in an equal number. Postoperative uroflow parameters showed improvement (Qmax 18 ml/s, Qave 7.9 ml, time 37 s, volume 332 ml). Perioperative complications were low (n = 6, 24%), all grade one (Clavien-Dindo). Follow-up revealed that 33% required another surgical intervention. The mean six-item LUTS score was 6.7 (SD 3.9). Mean ICIQ-S overall satisfaction score was 8.6 (SD 1.6) and outcome score was 20 (SD 2.8).DiscussionOur study found a significant recurrence rate of urethral strictures and fistulas post-surgery. Despite this, patient satisfaction remains high and complications are generally low-grade, highlighting the importance of expert surgical intervention.

The Optimal Suture Bite Depth in Laparoscopic Pyeloplasty: A Comparative Study in Children.

Background: Modified Anderson-Hynes pyeloplasty is currently preferred for ureteropelvic junction obstruction (UPJO). Extravasation of urine and anastomotic stenosis are the most common complications after Anderson-Hynes pyeloplasty, which are closely linked with the technique for anastomosis. However, there are currently no clear guidelines for the suture bite depth in suturing the anastomosis during pyeloplasty. Objective: To analyze the optimal suture bite depth in laparoscopic Anderson-Hynes pyeloplasty. Study Design: A total of 90 children aged 4-14 years with UPJO-induced hydronephrosis who were surgically treated in the First People's Hospital of Lianyungang from July 2019 to July 2022 were prospectively recruited. All received laparoscopic Anderson-Hynes pyeloplasty using 5-0 Vicryl continuous sutures. According to the suture bite depth, the patients were divided into group A (depth 1 mm, n = 46) and group B (depth 0.5 mm, n = 44). Operation time, postoperative drainage volume, time of ureteral stent removal, incidence of postoperative complications, and time to hydronephrosis resolution were compared between groups. Results: Group A showed significantly less postoperative drainage volume, and shorter time of ureteral stent removal and hydronephrosis resolution (all P < .05). Four cases in group B received replacement of a double-J stent. Except for 1 patient receiving reoperation for anastomotic stenosis caused by massive extravasation of urine, the replaced double-J stent was successfully removed from the remaining 3 patients at 3 months, and the symptoms of anastomotic stenosis disappeared. No significant difference was detected in the operation time between groups (P > .05). Conclusion: An appropriate deeper suture bite depth for anastomosis may reduce postoperative urine extravasation and related complications in children who received laparoscopic pyeloplasty for UPJO-induced hydronephrosis.

Checking vesicourethral anastomosis for urinary extravasation during radical prostatectomy: is it still necessary in the robotic era? A prospective, randomized case-control study

PurposeThis study aims to evaluate the role of intraoperative control of the watertightness of vesicourethral anastomosis extravasation control (VUAEC) in predicting vesicourethral anastomosis (VUA) healing and early postoperative outcomes in patients undergoing robot-assisted radical prostatectomy (RARP).Methods100 patients who underwent RARP between October 2020 and May 2023 were consecutively included in the study. Preoperatively, the patients were randomized to undergo VUAEC (Group-A) or not (Group-B). Patients in Group-A were evaluated in 2 subgroups: those with no extravasation observed during VUAEC (Group-A1; n = 31 (62%)) and those with extravasation (Group-A2; n = 19 (38%)). On the 8th post-operative day, a gravity cystogram (GC) was performed on all patients to assess VUA healing.ResultsThere was no statistically significant difference between the groups in terms of clinical features, drain removal time, length of hospital stay, extravasation on GC, catheter removal time and postoperative complications (p > 0.05, for each). There was also no statistically significant difference between the subgroups in terms of drain removal time, length of hospital stays, catheter removal time (p > 0.05, for each). In Group-A2, urinary extravasation on GC was found in a greater percentage, but the difference remained statistically insignificant (p = 0.082).ConclusionsPerforming intraoperative VUAEC did not have a significant role in the prediction of VUA healing and early postoperative outcomes in patients undergoing RARP. The current study did not identify a substantial clinical benefit of routine intraoperative VUAEC.

Anterior Urethral Rupture with Extravasation of Urine to Penis and Scrotum: A case report

Anterior Urethral Rupture with Extravasation of Urine to Penis and Scrotum: A case report

Implementation and Interim Analysis of a Standardized Renal Trauma Imaging and Urinary Extravasation Management Protocol.

The AUA recommends delayed-phase imaging (DPI) in renal injuries to evaluate the collecting system. A renal trauma imaging protocol for early conservative management of urinary extravasation (UE) was implemented to improve guideline adherence. We aimed to determine if increased adherence led to changes in outcomes. Patients with American Association for the Surgery of Trauma III to V renal injury presenting from January 2018 to September 2022 were identified from an institutional trauma registry. Patients were included if a contrasted CT scan of the abdomen was obtained on admission. Frequency of DPI and patient outcomes were compared before and after protocol implementation. Of 223 included patients, 131 (58.7%) were pre protocol and 92 (41.3%) were post protocol. Following protocol implementation, the rate of DPI on admission nearly doubled from 32.8% to 58.7% (P < .001). The rate of follow-up cross-sectional imaging increased from 18.3% to 58.7% (P < .001). Although there were no significant differences in rates of immediate or delayed interventions following protocol implementation, the postprotocol immediate intervention rate did decrease to 0%. Readmissions due to symptomatic UE were unchanged after protocol implementation (0.0% vs 0.0%). Implementation of a multidisciplinary renal trauma early imaging and management protocol improved AUA guideline adherence. With protocol adherence, there was also an elimination of immediate interventions for UE. Despite decreases in early intervention, there was no significant increase in interval interventions or UE-related readmissions. More research is needed to determine the role for routine follow-up imaging in conservative management of high-grade renal trauma.

Retroperitoneal biloma—A rare differential diagnosis of perirenal fluid accumulation

IntroductionNontraumatic biliary rupture and retroperitoneal biloma infrequently occur. Here, we report a case of retroperitoneal biloma due to spontaneous left hepatic duct perforation, which was difficult to differentiate from a perirenal abscess.Case presentationA 94‐year‐old female patient was hospitalized with symptoms of fatigue and right back pain that lasted for 5 days. Computed tomography revealed fluid accumulation in the retroperitoneum, and urinary extravasation and right perinephric abscess were suspected. Antimicrobial treatment and drainage with ureteral stents and urethral catheters demonstrated no symptom improvement. Ultrasound‐guided puncture of the abscess revealed the presence of bile. Pigtail catheter drainage improved symptoms and inflammatory response. After diagnosis, endoscopic retrograde cholangiopancreatography revealed bile leakage, and a bile duct stent was inserted.ConclusionBiloma can cause perirenal fluid accumulation, and they should be considered an origin of perirenal fluid accumulation when urinary tract lesions are excluded.

(346) Simultaneous Bladder Drainage via Suprapubic and Urethral Catheters: Which Drains More Completely and Why?

Abstract Introduction Reconstructive urologists often place both a urethral and suprapubic catheter intraoperatively to prevent extravasation of undrained urine across anastomosis sutures. As no consensus exists on which catheter drains the bladder more completely, many surgeons leave one catheter to gravity drainage and cap the other postoperatively. Objective We sought to identify differences in catheter urine outflow during dual bladder drainage with suprapubic and urethral catheters in postoperative urology patients. Methods Urine output (UOP) from transgender men who underwent Stage II Phalloplasty with urethral lengthening was retrospectively reviewed. Both 16 French urethral and suprapubic catheters were placed to gravity drainage postoperatively. UOP from each catheter was recorded separately, twice daily. Mixed model regression modeling tested for differences in urine output by time of day (day/night) and activity status (Bedrest: Postop Day 0-2, Ambulatory: Postop Day 3+). Results The aggregate number of 12-hour shift UOP observations was 250 (125 for urethral and 125 for suprapubic catheters) across 14 inpatients. Suprapubic catheters had a mean 410 ml higher output than urethral catheters per 12-hour shift (p=0.002; 95% CI: 185, 636 ml). During daytime, suprapubic catheters demonstrated higher UOP than urethral catheters per 12-hour shift (Estimated Difference: 464 ml; p=0.002; 95% CI: 211, 718 ml). During nighttime, a similar phenomenon was observed (Estimated Difference: 356 ml; p=0.009; 95% CI: 104, 606 ml). When comparing mean UOP from each catheter during the Bedrest Phase, suprapubic catheters averaged an estimated 295 ml higher UOP compared to urethral catheters per 12-hour shift with a trend toward statistical significance (p=0.052; 95% CI -3, 594 ml). During the Ambulatory Phase, mean suprapubic catheter UOP was an estimated 472 ml higher than urethral catheters per 12-hour shift (p=0.009; 95% CI 142, 802 ml) (Table 1). Conclusions Simultaneous bladder drainage with urethral and suprapubic catheters shows greater drainage from the suprapubic catheter (35% vs 65%). The difference in urinary drainage is likely explained by the suprapubic catheter tip and drainage inlet residing in a more gravity-dependent location, within the funnel-shaped bladder neck (Figure 1). When using two catheters, both can be placed to gravity to maximize bladder drainage as the suprapubic catheter can drain residual urine not adequately drained by the urethral catheter. Disclosure No.

Mental health and lower urinary tract symptoms: Results from the NHANES and Mendelian randomization study

BackgroundThe clinical observations suggest a correlation between lower urinary tract symptoms (LUTSs) and mental health problems. Nonetheless, establishing a direct causal relationship between them remains challenging. MethodsWe initially conducted a cross-sectional study using 2005–2018 the National Health and Nutrition Examination Survey (NHANES) data. Multivariable-adjusted logistic regression was the primary statistical approach. Additionally, we employed Mendelian randomization (MR) to reducing confounding and reverse causation. Genetic instruments were obtained from publicly available genome-wide association study (GWAS) databases. Inverse Variance Weighted was the primary statistical method. ResultsThe cross-sectional study involved 29,439 participants. Individuals with mental health problems had a higher risk of urinary incontinence (OR:4.38; 95%CI:3.32–5.76; P < 0.01) and overactive bladder (OR:2.31; 95%CI:2.02–2.63; P < 0.01). MR analysis then indicated a potential causal relationship between mental health problems and LUTSs. Depression symptoms was linked with urinary tract infection (UTI) (OR:1.005; 95%CI:1.003–1.008; PFDR < 0.01). Anxiety symptoms was related to the occurrence of UTI (OR:1.024; 95%CI:1.011–1.037; PFDR < 0.01) and bladder calcified/ contracted/ overactive (OR:1.017; 95%CI:1.007–1.027; PFDR < 0.01). The personality trait of neuroticism was related to the occurrence of cystitis (OR:1.072; 95%CI:1.022–1.125; PFDR = 0.02), extravasation of urine and difficulties with micturition (OR:1.001; 95%CI:1.001–1.002; PFDR < 0.01), and urinary frequency and incontinence (OR: 1.001; 95%CI:1.000–1.001; PFDR < 0.01). ConclusionsOur study provides various evidence for the correlation between mental health and LUTSs, emphasizing the significance of adopting a holistic approach to LUTSs management that incorporates both physical and psychological factors.

Proposed revision of the American Association for Surgery of Trauma Renal Organ Injury Scale: Secondary analysis of the Multi-institutional Genitourinary Trauma Study.

This study updates the American Association for the Surgery of Trauma (AAST) Organ Injury Scale (OIS) for renal trauma using evidence-based criteria for bleeding control intervention. This was a secondary analysis of a multicenter retrospective study including patients with high-grade renal trauma from seven level 1 trauma centers from 2013 to 2018. All eligible patients were assigned new renal trauma grades based on revised criteria. The primary outcome used to measure injury severity was intervention for renal bleeding. Secondary outcomes included intervention for urinary extravasation, units of packed red blood cells transfused within 24 hours, and mortality. To test the revised grading system, we performed mixed-effect logistic regression adjusted for multiple baseline demographic and trauma covariates. We determined the area under the curve (AUC) to assess accuracy of predicting bleeding interventions from the revised grading system and compared this to 2018 AAST OIS. Based on the 2018 OIS grading system, we included 549 patients with AAST grades III to V injuries and computed tomography scans (III, 52% [n = 284]; IV, 45% [n = 249]; and V, 3% [n = 16]). Among these patients, 89% experienced blunt injury (n = 491), and 12% (n = 64) underwent intervention for bleeding. After applying the revised grading criteria, 60% (n = 329) of patients were downgraded, and 4% (n = 23) were upgraded; 2.8% (n = 7) downgraded from grade V to IV, and 69.5% (n = 173) downgraded from grade IV to III. The revised renal trauma grading system demonstrated improved predictive ability for bleeding interventions (2018 AUC, 0.805; revised AUC, 0.883; p = 0.001) and number of units of packed red blood cells transfused. When we removed urinary injury from the revised system, there was no difference in its predictive ability for renal hemorrhage intervention. A revised renal trauma grading system better delineates the need for hemostatic interventions than the current AAST OIS renal trauma grading system. Diagnostic Test/Criteria; Level III.

Gangrene and Partial Auto-Amputation of the Penis in a Case of Priapism

Background: Penile Gangrene is rare, usually associated with extensive pelvic trauma, mechanical constriction, infection due to urinary extravasation and uncontrollable systemic infection. The objective of this case report is to stress upon the need for early detumescence by means of aspiration of accumulated blood, injection of phenylephrine, proper shunting of blood and adequate compression dressing with necessary antibiotic cover. Case Presentation: We present a case of 33-year-old married man who was hospitalized under general surgery department for left AK amputation because of lower limb gangrene. On 3rd postop day, patient was noted to have a turgid penis and unable to urinate. Urology consultation was sought after 3 days for suspected priapism. We immediately shifted the patient to OT and the detumescence of penis was achieved by means of aspiration and injection of phenylephrine followed by Winter’s shunting. The penis was noted to be flaccid with normal hue and patient was discharged. After 1 month, he returned to the hospital with extensive gangrene of the entire distal half of the penis with features of auto amputation of distal portion of penis. Conclusions: This report is aimed to prevent ischaemic complications of priapism like penile gangrene. Various factors like time of intervention, urethral catheter, tight pressure bandage dressing around the penis and local infection alone or in combination, have been implicated in causing penile gangrene in cases of priapism. Penile detumescence should be achieved on an emergency basis to prevent its ischaemic complications.

Uropathogenic Dysbiosis Pattern is Associated With Urethral Fibrosis

Purpose: Cellular mechanisms of stricture progression after repeated transurethral interventions are unclear. We hypothesize that urethral injury and mechanical stretch cause tears on the urethral epithelial cell lining leading to leaking epithelium and urine extravasation. Urinary bacteria traverse the epithelial lining and may promote fibrogenesis through inflammation due to microbial activity. Our objective was to perform a case-control study of the urobiome from patients with urethral stricture disease or healthy controls using 16S rRNA and shotgun metagenomic sequencing profiling to elucidate the clinical relevance of the urobiome in urinary stricture progression. Materials and Methods: First catch urine samples from patients and healthy volunteers were collected and pelleted urine was used for DNA extraction, followed by high throughput 16S rRNA and shotgun metagenomic sequencing. Sequencing data were used to determine microbial taxa and functions associated with urethral stricture disease. Results: Sequencing results revealed that the lower urinary tract urobiome was significantly different between urethral stricture disease cases and healthy controls. In particular, taxonomic and metabolic profiles point toward anaerobic biofilm formation by antibiotic-resistant species of Klebsiella, which is a known uropathogen. Importantly, no patients in the study exhibited signs or symptoms of clinical infection. Conclusions: Our findings suggest a role for biofilm formation by uropathogens such as Klebsiella spp. in developing an inflammatory environment and consequent fibrosis progression. Future studies will elucidate specific mechanisms of Klebsiella-induced fibrosis. Our data suggest that targeting specific bacteria or biofilm formation may be beneficial for urethral stricture disease detection and prevention of progression.

Tubeless PCNL versus standard PCNL for the treatment of upper urinary tract stones: a propensity score matching analysis

PurposeIn this study, the feasibility of tubeless percutaneous nephrolithotomy (PCNL) for the treatment of upper urinary tract stones was investigated.MethodsFrom January 2021 to December 2022, the clinical data of 273 patients who received tubeless PCNL (Group A) were studied. The control group includes clinical data from 302 patients (from January 2019 to October 2022) who received standard PCNL (Group B). The baseline characteristics were consistent between the two groups after using the propensity score matching (PSM) method. Compare the preoperative clinical characteristics, postoperative complications, residual stones, catheterization time, and hospital stay between the two groups.Results146 pairs of patients were successfully paired through PSM. There was no statistically significant difference in operative time, blood leukocyte counts, haemoglobin decrease, fever, urinary extravasation, sepsis, bleeding, blood transfusion rates, embolism, and residual stones after surgery between the two groups; Postoperative day 1 and discharge day, the VAS pain score in Group A was significantly lower than that in Group B. The catheterization time and hospitalization time of patients in Group A were significantly lower than those in Group B.ConclusionAccording to the inclusion and exclusion criteria, selecting suitable patients for tubeless PCNL is safe and effective, while significantly alleviating pain and reducing catheterization time and hospital stay.

Pediatric renal trauma: 17 years of experience at a major Scandinavian trauma center

BackgroundChildren are at increased risk of renal injuries from blunt trauma due to their anatomic constitution. The kidney is injured in 5–20% of pediatric patients with blunt abdominal trauma. During...

Transurethral Vaporization of Bladder Neck Using Holmium Laser: First Experience in Manado

Abstract: Bladder neck contracture (BNC) is a potential complication after radical prostatectomy (RP). This may be a result of inadequate approximation at the time of surgery, urinary extravasation, or distraction of the bladder neck from a hematoma. Patients commonly complains of a poor urinary stream or prolonged unexplained incontinence. Treatment of BNC requires a tailored approach and can range from simple, office-based procedures to complex surgical reconstruction. We reported a case of 81-year-old male complaining urine retention for one month. The patient had previous open prostate procedure a year prior. On examination, neurogenic causes were excluded. Retrograde ureterocystography revealed bladder neck contracture. Patient was diagnosed as bladder neck contracture post open prostatectomy surgery. Transurethral holmium laser vaporization with 800 micrometre, 20 Hz frequency and 4,5 Joule of power. through a ureteroscope was performed. Two-way Folley catheter 18Fr was inserted without irrigation. Patient was discharged post-surgery two days after catheter removal and spontaneous micturition. Endoscopic balloon dilatation with incision appears to offers promising result in the management of BNC. The consideration of using transurethral vaporization with holmium laser modality was the first procedure ever done in Manado. In conclusion, TUVP is one of the alternatives, minimally invasive procedures to treat BNC. The use of holmium laser for the incision of bladder neck is another alternative to treat BNC with great outome proven by the length of stay (LOS) of two days after the procedure was done. Keywords: bladder neck contracture; transurethral vaporization; holmium laser; post prostatectomy

Comparative analysis of re-entry malecot and nelaton catheters after standard percutaneous nephrolithotomy in adult patients: a cross-sectional study.

Drainage catheters are used almost routinely to provide urinary drainage, prevent extravasation of urine, and create tamponade against bleeding after percutaneous nephrolithotomy (PNL). In the literature, there is no standardized approach to determining which type of catheter is superior. In this context, we aimed to comparatively analyze two different types of catheters (re-entry malecot catheter and nelaton catheter) in terms of success and complications, which we use for drainage after a PNL operation and which have very different costs. Patients who underwent PNL for kidney stones between January 2018 and October 2022 were included in the study. The data of a total of 148 patients who had a 16-F reentry malecot nephrostomy catheter or a 16-F nelaton catheter were analyzed. In addition to the demographic characteristics of the patients, stone characteristics, operative data, hospitalization time, analgesia requirement, hemoglobin exchange, amount of blood transfusion, and postoperative data (success and complications) were comparatively evaluated. The current unit price for a reentry malecot and a nelaton catheter is 4.7 United States dollars (USD) and 0.11 USD, respectively. There were a total of 148 patients in the study, 63 of whom were nelaton catheters and 85 were reentry malecots, and the mean age was 39.95 ± 13.28years. There was no statistically significant difference between preoperative stone sizes and residual stone rates according to the groups. In addition, there was no statistically significant difference between the groups in terms of access site and stone localization. There was no significant difference between the groups in terms of complication rates according to the Clavien-Dindo classification, Hb levels, blood transfusion rates, operation times, or hospitalization times. In conclusion, if a second procedure is planned, a reentry malecot catheter may be preferred. Apart from this situation, nelaton catheters should be preferred because they are similar to reentry catheters in terms of effectiveness, and side effects and are more economical than reentry catheters in terms of cost.

Outcome of Laparoscopic Ureterolithotomy in Comparison to Open Ureterolithotomy for the Treatment of Large and Impacted Upper Ureteric Stone

Background: Ureteric stones are a common clinical issue, often necessitating open ureterolithotomy for large and impacted upper ureteric stones. Despite its success, laparoscopic surgery has gained popularity as an alternative approach, offering potential benefits such as reduced morbidity and shorter hospital stays. This study aims to compare the outcomes of laparoscopic ureterolithotomy with open ureterolithotomy for large impacted stones in the upper ureter. Methods: A prospective quasi-experimental study was conducted from June 2018 to August 2019 at the Department of Urology, Dhaka Medical College Hospital. The study enrolled sixty patients with upper ureteric stones larger than 2 cm. Patients were divided into two groups: Group A underwent laparoscopic ureterolithotomy, while Group B underwent open ureterolithotomy. Demographic data, medical history, examination findings, and investigation reports were recorded for all patients. Post-surgical pain scores, blood loss, complications, and hospital stays were also evaluated. Results: The study compared the outcomes of Group-A and Group-B patients who underwent ureterolithotomy. Group-A had an average age of 49.66 ± 14.70 years, while Group-B's average age was 51.60 ± 11.93 years. There was no significant difference in gender distribution between the groups (p-value 0.371). Group-A had a mean operative time of 2.11 ± 0.41 hours, while Group-B had a mean operative time of 1.60 ± 0.28 hours. Laparoscopic ureterolithotomy resulted in significantly less blood loss (p-value &lt;0.001). Group-A had a lower mean pain score (59.27 ± 8.56) compared to Group-B (75.50 ± 17.34). Laparoscopic ureterolithotomy also required less Pethidine (p-value &lt;0.001). Group-A experienced 6.7% wound infection and 10% UTI, while Group-B had higher rates (26.7% and 33.3% respectively). Urine extravasation occurred in 16.7% of Group-A, on the hand, in Group-B, it was 6.7%. Group-A had a shorter hospital stay (4.17 ± 1.18 days) compared to ........

Wound healing responses of urinary extravasation after urethral injury

The post-surgical fluid leakage from the tubular tissues is a critical symptom after gastrointestinal or urinary tract surgeries. Elucidating the mechanism for such abnormalities is vital in surgical and medical science. The exposure of the fluid such as peritonitis due to urinary or gastrointestinal perforation has been reported to induce severe inflammation to the surrounding tissue. However, there have been no reports for the tissue responses by fluid extravasation and assessment of post-surgical and injury complication processes is therefore vital. The current model mouse study aims to investigate the effect of the urinary extravasation of the urethral injuries. Analyses on the urinary extravasation affecting both urethral mesenchyme and epithelium and the resultant spongio-fibrosis/urethral stricture were performed. The urine was injected from the lumen of urethra exposing the surrounding mesenchyme after the injury. The wound healing responses with urinary extravasation were shown as severe edematous mesenchymal lesions with the narrow urethral lumen. The epithelial cell proliferation was significantly increased in the wide layers. The mesenchymal spongio-fibrosis was induced by urethral injury with subsequent extravasation. The current report thus offers a novel research tool for surgical sciences on the urinary tract.

Применение «безнефростомной» перкутанной нефролитотрипсии у детей.

Introduction. Currently, percutaneous renal surgery is a common surgical procedure in urologic practice for the treatment of large and staghorn renal stones. Placement of a nephrostomy tube has been well recognized as a standard procedure to provide hemostasis, adequate drainage, and access for additional endoscopic procedures. At the same time, the use of a nephrostomy tube has negative consequences such as discomfort/pain symptom, longer hospital stay and possible urine extravasation. In view of the above, draining of the access tract raises questions in some cases. The aim of the study was effectiveness of tubeless percutaneous nephrolithotripsy in the treatment of urolithiasis in children. Materials and methods. Between 2013 and 2019, 66 patients (aged 1-17 y/o) underwent tubeless percutaneous nephrolithotomy (PNL) at the Department of Pediatric Urology of N. Lopatkin Scientific Research Institute of Urology and Interventional Radiology. Patients were divided into three groups depending on the size of the instruments and the way the operation was completed. The first group (n=28) underwent surgery using the mini-PNL technique with the closure of the access tract. The second group (n=21) underwent surgery using the mini-PNL technique in the end of the surgery, moderate bleeding along the tract was detected in order to stop bleeding, a hemostatic matrix with thrombin was introduced. The third group (n=17) underwent surgery using the standard PNL technique and moderate bleeding was also determined in this group with the aim of tubeless completion, a hemostatic matrix with thrombin was introduced. Drainage of the upper urinary tract in the postoperative period was carried out by "JJ"-internal and "J"-external ureteral stents, which were held for up to 14 days. Results. The complete removal of the calculus in one surgical session was similar in all three groups. In the first group there were 26 (92.8%) children, in the second group 19 (90.4%) and in the third group 16 patients (94.1%). In the first group it was 26 (92.8%) children, in the second group 19 (90.4%) and in the third group 16 patients (94.1%). The need for additional interventions after surgical treatment was 21.4% in the first group, 23.7% in the second and 17.5% in the third group. Febrile fever (persistent temperature 380 C) most often occurred in the first group – in 10.7% of cases, while in the second and third groups this complication was detected in 4.7% and 5.8% of cases, respectively. Gross hematuria in the postoperative period was noted in the group without the use of a hemostatic matrix, averaging 35 (2-115) hours. Conclusion. The proposed tubeless PNL with the use of a hemostatic matrix is indicated for children without bacteriuria, with complete removal of the calculus, in the absence of trauma of the pelvicalyceal system and intensive bleeding. The duration of gross hematuria decreased with the introduction of the matrix in standard tubeless PNL by 51.4% and in mini-PNL by 25.8% compared with the 1-st group