RESUMEN
PURPOSE: We investigated whether inflammatory cell infiltration (ICI), fibrosis, and mitochondrial viability of the neurogenic bladder urothelium are involved in the mechanism of persistent vesicoureteral reflux (VUR) after sigmoidocolocystoplasty (SCP). METHODS: Bladder biopsies obtained 1994-2023 from 62 neurogenic bladder patients were examined by hematoxylin and eosin for ICI, Masson's trichrome for fibrosis, and immunofluorescence for urothelial growth differentiation factor 15 (GDF15; a mitochondrial stress-responsive cytokine) (positive/negative) and heat shock protein 60 (HSP60; a mitochondrial matrix marker) (strong ≥ 50%/weak≤ 50%) expression. GDF15 + /weak HSP60 indicated compromised mitochondrial viability. Cystometry measured neobladder compliance/capacity. RESULTS: Mean ages (years) at SCP and bladder biopsies were 9.4 ± 4.6 and 14.2 ± 7.1, respectively. VUR was present in 38/62 patients (51 ureters) at SCP and resolved with SCP alone in 4/38 patients, with SCP and ureteroneocystostomy in 17/38, and persisted in 17/38. Fibrosis was significantly denser in GDF15 + (n = 24)/weak HSP60 (n = 31) compared with GDF15- (n = 38)/strong HSP60 (n = 31) (p < 0.001 and p < 0.01, respectively). Differences in ICI were significant for GDF15 + vs. GDF15- (p < 0.05) but not for HSP60. Patients with VUR after SCP had higher incidence of GDF15 + /weak HSP60 compared with cases without VUR (p < 0.05 and p < 0.001, respectively). CONCLUSION: Viability of mitochondria appears to be compromised with possible etiologic implications for VUR persisting after SCP.
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Mitocondrias , Vejiga Urinaria Neurogénica , Urotelio , Reflujo Vesicoureteral , Humanos , Niño , Masculino , Vejiga Urinaria Neurogénica/cirugía , Vejiga Urinaria Neurogénica/etiología , Femenino , Reflujo Vesicoureteral/cirugía , Urotelio/metabolismo , Urotelio/patología , Adolescente , Mitocondrias/metabolismo , Preescolar , Vejiga Urinaria/cirugía , Vejiga Urinaria/patología , Colon Sigmoide/cirugía , Colon Sigmoide/patología , Biopsia , Estudios Retrospectivos , Factor 15 de Diferenciación de Crecimiento/metabolismoAsunto(s)
Obstrucción Ureteral , Reflujo Vesicoureteral , Humanos , Obstrucción Ureteral/cirugía , Obstrucción Ureteral/etiología , Reflujo Vesicoureteral/cirugía , Reflujo Vesicoureteral/etiología , Derivación Urinaria/métodos , Estudios de Seguimiento , Resultado del Tratamiento , Preescolar , Uréter/cirugía , Uréter/anomalías , Lactante , Factores de Tiempo , Masculino , Femenino , NiñoRESUMEN
PURPOSE OF REVIEW: Traditional surgical management for urinary incontinence and vesicoureteral reflux often requires complex reconstructive surgery and extended hospitalizations. Since the introduction of endoscopic bulking agents in 1973, there has been increasing interest in the use of endoscopic injection (EI) and bulking for the treatment of a variety of pediatric urologic disorders. The purpose of this review is to summarize the most recent literature addressing the use of bulking agents in pediatric urology. RECENT FINDINGS: The most recent literature has focused primarily on the use of EI of bulking agents at the bladder neck for the treatment of urinary incontinence. Other uses of EI of bulking agents has focused on the treatment of vesicoureteral reflux (VUR) in patients with anatomic abnormalities or treatment of incontinence catheterizable channels. The development of advanced techniques for endoscopic injection along with safe, stable bulking agents has allowed for the treatment of a variety of urologic conditions. This minimally invasive procedure offers an additional tool for the pediatric urologist's armamentarium in the treatment of urinary incontinence and VUR.
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Incontinencia Urinaria , Reflujo Vesicoureteral , Humanos , Reflujo Vesicoureteral/terapia , Reflujo Vesicoureteral/cirugía , Niño , Inyecciones , Materiales Biocompatibles/administración & dosificación , Ácido Hialurónico/administración & dosificación , Ácido Hialurónico/uso terapéuticoRESUMEN
INTRODUCTION: Postoperative ureteral strictures and vesicoureteral reflux after ureteroneocystostomy for kidney transplant can be managed by endoscopic procedures like balloon dilation and endoscopic injections. Complicated/recurrent cases, however, are usually managed by reconstructive surgery. We hereby highlight our technique of robotic-assisted native pyeloureterostomy with indocyanine green (ICG). MATERIALS AND SURGICAL TECHNIQUE: A 57-year-old woman, diagnosed with grade 4 vesicoureteral reflux on her transplanted kidney, was considered a candidate for ureteral reimplantation. After an endoscopic part, where the ICG is inserted into the renal pelvis, we proceed with the robotic native pyeloureterostomy. The renal pelvis of the transplanted kidney was identified with the help of the ICG in firefly mode. After the dissection of the graft pelvis, we performed a tension-free pyeloureterostomy using the native ureter. The postoperative course was uneventful and the patient was discharged on the third postoperative day. DISCUSSION: Robotic-assisted pyelo-ureterostomy appears as a safe and efficient technique for management of complicated urological complications postrenal transplantation using the native ureter. Intrapelvic ICG injection, not possible with open surgery, helps identifying the grafted pelvis thus reducing operative time and avoiding unnecessary dissection of the vascular hilum of the graft. Because of minimal dissection and the short operative time, abdominal drainage is unnecessary and the postoperative course is usually uneventful with a fast discharge from the hospital.
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Verde de Indocianina , Trasplante de Riñón , Procedimientos Quirúrgicos Robotizados , Ureterostomía , Humanos , Femenino , Persona de Mediana Edad , Ureterostomía/métodos , Reflujo Vesicoureteral/cirugía , Reflujo Vesicoureteral/etiología , Pelvis Renal/cirugía , Colorantes , Complicaciones Posoperatorias/cirugía , Uréter/cirugía , Obstrucción Ureteral/cirugía , Obstrucción Ureteral/etiologíaRESUMEN
OBJECTIVE: To assess the role of voiding cystourethrography (VCUG) in patients with duplex system ureterocele (DSU) undergoing endoscopic decompression (ED). MATERIALS AND METHODS: This is a retrospective study of 75 consecutive patients with DSU undergoing ED [median (range) age, 6 (1-148) months]. Patients were divided into 3 groups, 33 with a VCUG showing vesicoureteral reflux (VUR) before ED (VUR-group), 22 with a VCUG negative for VUR (No-VUR-group), and 20 who did not undergo a VCUG (No-VCUG-group). Secondary surgery (SS) rate was compared among groups. RESULTS: Groups were comparable for baseline characteristics. SS rate was 82% (27/33) in VUR-group vs. 32% (7/22) in the No-VUR-group (p = 0.0001), and 25% (5/20) in the No-VCUG-group (p = 0.001 vs. VUR-group, and 1 vs. No-VUR-group). In the VUR-group, 9 patients underwent preemptive endoscopic treatment of VUR during ED and SS rate was 44% (4/9) vs. 96% (23/24) in the remainder, p= 0.003. In the No-VCUG-group, a VCUG was performed during follow-up in 9/15 patients and showed reflux in all, although only 2 of these developed a (single) urinary tract infections. CONCLUSIONS: SS rate was significantly higher in patients with preoperative VUR. Instead, it was not significantly different between patients without VUR and those who did not undergo a VCUG before ED, despite all the latter who underwent a VCUG during follow-up had evidence of VUR generally in the absence of symptoms. In our opinion, a VCUG could be limited to patients developing symptoms after ED. If a VCUG is performed before ED, a preemptive treatment of VUR should be taken into consideration.
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Ureterocele , Reflujo Vesicoureteral , Humanos , Lactante , Descompresión Quirúrgica , Estudios Retrospectivos , Ureterocele/diagnóstico por imagen , Ureterocele/cirugía , Vértebras Lumbares , Reflujo Vesicoureteral/diagnóstico por imagen , Reflujo Vesicoureteral/cirugíaRESUMEN
OBJECTIVE: To observe the safety and short-term outcomes of a new way of laparoscopic trocar placement in pediatric robotic-assisted Lich-Gregoir ureteral reimplantation for vesicoureteral reflux. METHODS: The retrospective study included 32 patients under 14 years diagnosed with primary vesicoureteral reflux (VUR). All these patients underwent robotic-assisted Lich-Gregoir ureteral reimplantation in our department from December 2020 to August 2022. These patients were divided into the following groups according to the different ways of trocar placement: 13 patients in group single-port plus one (SR) and 19 patients in group multiple-port (MR). Patients' characteristics as well as their perioperative and follow-up data were collected and evaluated. RESULTS: There was no significant difference in the data regarding patients' characteristics and preoperative data. These data included the grade of vesicoureteral reflux according to the voiding cystourethrogram (VCUG), and the differential degree of renal function (DRF) at the following time points: preoperative, postoperative, and comparison of preoperative and postoperative. There was no difference between the two groups. During surgery, the time of artificial pneumoperitoneum establishment, ureteral reimplantation time, and total operative time in the SR group were longer than those in the MR group. Yet only the time of artificial pneumoperitoneum establishment shows a statistical difference (P < 0.0001). Also, the peri-operative data, including the volume of blood loss, fasting time, hospitalization, and length of time that a ureteral catheter remained in place, and the number of postoperative complications demonstrate no difference. In addition, the SFU grade and VCUG grade at the following time point also show no difference between the two groups. CONCLUSION: The study demonstrates that SR in robotic-assisted Lich-Gregoir ureteral reimplantation has reached the same surgical effects as MR. In addition, the single-port plus one trocar placement receives a higher cosmetic satisfaction score from parents and did not increase the surgical time and complexity.
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Laparoscopía , Procedimientos Quirúrgicos Robotizados , Uréter , Reflujo Vesicoureteral , Niño , Humanos , Reflujo Vesicoureteral/cirugía , Estudios Retrospectivos , Procedimientos Quirúrgicos Urológicos , Resultado del Tratamiento , Uréter/cirugía , ReimplantaciónRESUMEN
PURPOSE: We describe long-term outcomes, including UTIs and need for reimplantation, after ureterovesicostomy (UV) as a lasting surgical procedure for children with primary obstructive megaureter (POM). MATERIALS AND METHODS: Children referred to our institution between 2016 and 2023 who underwent refluxing UV were analyzed. POM was defined as hydroureteronephrosis with distal ureteral dilatation > 7 mm and a negative workup for other etiologies of hydronephrosis. We assessed for surgical outcomes, complications, rate of UTI, and improvement in upper tract dilatation. Statistical analyses assessed for change in hydronephrosis metrics over follow-up. RESULTS: Among 183 patients diagnosed with POM, 47 (24%) underwent UV. Median age of presentation, surgery, and follow-up was 2, 9, and 43 months, respectively. A total of 7 patients developed 30-day complications: Clavien-Dindo grade 1 in 2 (transient urinary retention) and grade 2 in 5 (UTIs). During monitoring 14 (30%) developed UTIs and 7 (15%) required ureteral reimplant or UV takedown. After surgery there was a significant decrease in the proportion of patients with high-grade hydronephrosis, anteroposterior renal pelvis diameter, and maximum ureteral dilatation. CONCLUSIONS: Refluxing UV is a safe alternative to cutaneous diversion in POM. Most patients had improvement in upper tract dilatation with an acceptable short-term complication rate and need for reoperation (in comparison to routine later reimplantation). Our experience suggests that monitoring alone after UV is feasible, and that selective subsequent reconstruction is a reasonable strategy.
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Uréter , Obstrucción Ureteral , Humanos , Masculino , Femenino , Obstrucción Ureteral/cirugía , Obstrucción Ureteral/etiología , Preescolar , Lactante , Estudios de Seguimiento , Estudios Retrospectivos , Uréter/cirugía , Uréter/anomalías , Uréter/diagnóstico por imagen , Resultado del Tratamiento , Derivación Urinaria/métodos , Derivación Urinaria/efectos adversos , Reflujo Vesicoureteral/cirugía , Reflujo Vesicoureteral/etiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/epidemiología , Hidronefrosis/etiología , Hidronefrosis/cirugía , Reimplantación/métodos , Reimplantación/efectos adversos , Cistostomía/métodosRESUMEN
OBJECTIVE: To assess the clinical efficacy of laparoscopic Lich-Gregoir (LLG) and transvesicoscopic Cohen reimplantation (TCR) in the treatment of vesicoureteral junction obstruction (VUJO) and vesicoureteral reflux (VUR). METHODS: This study retrospectively analyzed the clinical data of 66 pediatric patients with VUJO and VUR. They were classified into two groups, undergoing either the laparoscopic Lich-Gregoir operation (LLGO) (n = 35) or transvesicoscopic Cohen reimplantation operation (TCRO) (n = 31). The surgeries were performed between April 2018 and September 2022 at the First Affiliated Hospital of Guangxi Medical University, China. General characteristics, preoperative attributes, postoperative complications, renal function recovery, and improvement of hydronephrosis were compared between the two groups. RESULTS: All surgical procedures were successful with no requirement for reoperation. Both groups were comparable with respect to gender, affected side, weight, and postoperative complications. Nonetheless, the LLGO group contained a greater number of children younger than 12 months. The LLGO group demonstrated superiority over the TCRO group regarding the duration of the operation, intraoperative blood loss, and length of postoperative hospital stay. In contrast, postoperative complications, recovery of renal function, and hydronephrosis improvement did not exhibit statistically significant differences between the two groups. CONCLUSION: Both LLGO and TCRO were demonstrated to be precise, safe, and reliable surgical methods for treating pediatric VUJO and VUR. LLGO ureteral reimplantation offers particular advantages in selecting cases and appears more suitable for children younger than 12 months who have a small bladder capacity.
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Hidronefrosis , Laparoscopía , Uréter , Reflujo Vesicoureteral , Niño , Humanos , Estudios Retrospectivos , Procedimientos Quirúrgicos Urológicos/métodos , China , Uréter/cirugía , Reflujo Vesicoureteral/cirugía , Resultado del Tratamiento , Laparoscopía/métodos , Reimplantación/métodos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/cirugía , Hidronefrosis/cirugíaRESUMEN
OBJECTIVE: To evaluate the outcomes of children with vesicoureteral reflux (VUR) and obstructive megaureter (OM) utilizing various laparoscopic and robot-assisted approaches. MATERIALS AND METHODS: Retrospective review of all pediatric laparoscopic and robot-assisted cases for lower ureter pathology was performed between 2016-2022 in 13 academic centers worldwide. Five surgical approaches were assessed: LEUR, LVCUR, LDECUR, RALUR, and RADECUR. RESULTS: One thousand three hundred forty-three patients (490 boys and 853 girls) with a median age of 30 months (IQR 12-63) were treated at 13 centers. Nine hundred and eight patients (68%) underwent reimplantation due to VUR (unilateral in 818 and bilateral in 90 patients). Four hundred thirty-five (32%) had a surgery due to ureterovesical junction (UVJ) obstruction. Mean length of follow-up was 14 months (IQR 8-33). Median operative time was 202 minutes (IQR 142-220) in the robotic arm compared to 240 minutes (IQR 160-267) in the laparoscopic (P = .45). Intracorporeal excisional tapering was performed in 118 (8%) of the patients. Six patients in the OM group required additional surgery due to progressive obstruction. In the VUR group, 84% underwent voiding cystourethrography postoperatively. 5.6% showed residual reflux. Grade 1-2 Clavien-Dindo complications occurred in 10 patients (0.7%) and 6 (0.4%) in the laparoscopic and robotic arm, respectively. Grade 3 complications occurred in 17 (1.2%) and 8 (0.5%) in both arms, respectively. Surgical success was achieved in 96% of patients. CONCLUSION: Laparoscopic and robot-assisted laparoscopic approaches are simple, safe, and effective for treating all grades of VUR and OM. Robot-assisted approach is beneficial in terms of operative time, intracorporeal suturing, and lower complications rate.
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Laparoscopía , Procedimientos Quirúrgicos Robotizados , Robótica , Uréter , Obstrucción Ureteral , Reflujo Vesicoureteral , Preescolar , Femenino , Humanos , Lactante , Masculino , Laparoscopía/efectos adversos , Reimplantación , Estudios Retrospectivos , Procedimientos Quirúrgicos Robotizados/efectos adversos , Resultado del Tratamiento , Uréter/cirugía , Obstrucción Ureteral/cirugía , Obstrucción Ureteral/etiología , Reflujo Vesicoureteral/cirugía , Reflujo Vesicoureteral/etiologíaRESUMEN
OBJECTIVE: To assess efficacy, comfort, and symptoms of a novel ureteral stent (RELIEF) substituting the distal semirigid coil of a traditional double-J for a floating, monofilament tether allowing coaptation of the ureteral orifice. Ureteral instrumentation notoriously cause discomfort, urgency, frequency, dysuria, and hematuria; prolonged morbidity is likely related to stent-associated vesicoureteral reflux (VUR). We hypothesized this design would eliminate VUR, be safe and provide comfort following intervention. METHODS: Twenty-eight patients within a single institution were enrolled. Passive cystography was performed pre- and post-stent placement assessing VUR. Patients completed Ureteric Stent Symptoms Questionnaires (USSQ) before placement (baseline), postop day 1, and day of removal. RESULTS: Twenty RELIEF stents were placed (11 female and 9 male). 95% demonstrated no VUR following placement. No unexpected adverse complications occurred; 1 patient opted for early stent removal for significant discomfort. Average total USSQ scores demonstrated statistically significant improvement between first and third surveys (P < .001). Statistically significant improvement in body pain, general health, and work performance scores were noted as well (P < .05). CONCLUSION: The RELIEF stent eliminates VUR with similar stent-related morbidity and overall well-tolerance. RELIEF-associated USSQ scores were below published mean symptom scores for standard double-J stents and appear safe in this preliminary clinical trial.
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Stents , Reflujo Vesicoureteral , Humanos , Reflujo Vesicoureteral/terapia , Reflujo Vesicoureteral/cirugía , Femenino , Stents/efectos adversos , Masculino , Niño , Adulto , Diseño de Prótesis , Adolescente , Uréter/cirugía , Adulto Joven , Resultado del Tratamiento , Persona de Mediana EdadRESUMEN
OBJECTIVE: To assess the incidence of concomitant vesicoureteral reflux (VUR) in unilateral cases of ureteropelvic junction obstruction (UPJO) and to identify factors that predict VUR. METHODS: Files of 381 pediatric patients who underwent unilateral pyeloplasty between 2000 and 2017 were retrospectively reviewed. A total of 270 patients with available data and ≥5â¯years of follow-up were eligible for this study. Demographic parameters, preoperative hydronephrosis grade, renal pelvis anteroposterior diameter (APD), renal parenchymal thickness (PT), split renal functions on MAG-3 scan and VUR status were noted. The patients were divided into two groups: those with concomitant VUR (group I, n: 24, 8.9%) and those without VUR (group II, n: 246, 91.1%). RESULTS: Among 270 patients (205 boys, 75.9%) with a median age of 4â¯months (2-98), 197 (72.9%) had antenatal hydronephrosis. Median follow-up was 11â¯years (5-22). Among 24 patients with concurrent VUR, 6 (25%) had grade II VUR, whereas grade III-V VUR was detected in 18 (75%). Of these, 12 (50%) had ipsilateral VUR, 3 (12.5%) had contralateral, and 9 (37.5%) had bilateral VUR. In a median 137-month follow-up, spontaneous VUR resolution was observed in 6 (25%) patients, whereas 15 (62.5%) patients underwent endoscopic subureteral injection and 3 (12.5%) patients ureteroneocystostomy, respectively. Preoperative APD [35.5, (Inter Quantile Range) IQR (27.6-36.0) vs 26.5 IQR (25.0-35.0), Pâ¯=â¯.004] were significantly higher in group I, whereas group I had significantly lower PT [3.7, IQR (3.4-6.4) vs 5.8 IQR (4.4-6.1), Pâ¯=â¯.026]. Predictive factors for concomitant VUR were presentation with febrile UTI (odds ratio (OR): 2.769, Pâ¯=â¯.048), PTâ¯<3.95â¯mm (OR: 1.367, Pâ¯=â¯.043), and APDâ¯>28.8â¯mm (OR: 1.035, Pâ¯=â¯.001). CONCLUSION: Our results indicated that concomitant VUR and UPJO might be detected in 1 out of every 11 patients undergoing pyeloplasty, while some type of surgical intervention for VUR was required in 75% of these patients. Thus, voiding cystourethrogram prior to pyeloplasty may be limited in those presenting with febrile urinary tract infection, having higher APD and lower PT on preoperative urinary ultrasonography.
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Hidronefrosis , Procedimientos de Cirugía Plástica , Reflujo Vesicoureteral , Embarazo , Masculino , Humanos , Femenino , Niño , Lactante , Preescolar , Estudios Retrospectivos , Riñón , Reflujo Vesicoureteral/diagnóstico por imagen , Reflujo Vesicoureteral/cirugía , Hidronefrosis/diagnóstico por imagen , Hidronefrosis/etiología , Hidronefrosis/cirugíaRESUMEN
BACKGROUND: Vesicoureteral reflux (VUR) is common in children and adolescents undergoing kidney transplantation (KTx) and may adversely affect allograft kidney function. METHODS: To explore the current management of symptomatic native and allograft VUR in pediatric KTx recipients, an online survey was distributed to European surgical transplant professionals. RESULTS: Surgeons from 40 pediatric KTx centers in 18 countries participated in this survey. Symptomatic native kidney VUR was treated before or during KTx by 68% of the centers (all/selected patients: 33%/67%; before/during KTx: 89%/11%), with a preference for endoscopic treatment (59%). At KTx, 90% favored an anti-reflux ureteral reimplantation procedure (extravesical/transvesical approach: 92%/8%; preferred extravesical technique: Lich-Gregoir [85%]). Management strategies for symptomatic allograft VUR included surgical repair (90%), continuous antibiotic prophylaxis (51%), bladder training (49%), or noninterventional surveillance (21%). Redo ureteral implantation and endoscopic intervention for allograft VUR were equally reported (51%/49%). CONCLUSIONS: This survey shows uniformity in some surgical aspects of the pediatric KTx procedure. However, with regard to VUR, there is a significant variation in practice patterns that need to be addressed by future well-designed and prospective studies. In this way, more robust data could be translated into consensus guidelines for a more standardized and evidence-based management of this common condition in pediatric KTx.
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Trasplante de Riñón , Uréter , Reflujo Vesicoureteral , Adolescente , Niño , Humanos , Reflujo Vesicoureteral/cirugía , Estudios Prospectivos , Procedimientos Quirúrgicos Urológicos/métodos , Uréter/cirugía , Estudios RetrospectivosRESUMEN
BACKGROUND: Endoscopic treatment of vesicoureteral reflux (VUR) is an important minimally invasive surgical approach in patients undergoing surgical treatment of VUR. In our past experience, we observed that a bulking agent mound sagittal diameter of 10 mm is the main predictor of effectiveness of the procedure. Moreover we noticed that the use of intraoperative ultrasound, allows the surgeon to better identify the site, volume and shape of the bulking agent injected, finally reducing operative time. OBJECTIVE: We aimed to evaluate if the intraoperative ultrasound assistance could definitively improve effectiveness of the endoscopic procedure. METHODS: We retrospectively compared two series treated with endoscopic procedures for intermediate and high grade primary VUR, respectively without (series A) and with (series B) intraoperative ultrasound (IO-US). In all patients VCUG was performed to assess VUR grade and to verify resolution or VUR downgrading during the follow-up. RESULTS: A total of 177 ureteric units were treated. Endoscopic procedures globally were effective in 68/96 ureters (70.8 %) in series A and in 68/81 ureters (83.9 %) in series B. No significant differences in effectiveness were observed comparing the series with regard to VUR grades, but a significant difference is shown (p < 0.05) when grouping grades III-V VUR. No significance in differences of volume injected were detected, but operative time was significantly lower in series B (27.5 min vs 19.6 min, p < 0.05). Mean sagittal mound diameter measured during cystoscopy in series B was 10.45 mm (range 8.5-14.2 mm). DISCUSSION: The intraoperative ultrasound assistance during endoscopic treatment of VUR could represent a valid tool for surgeons to better identify location, volume and shape of the bulking agent. Furthermore, the use of an objective parameter of evaluation of the implant can overcome the subjective intraoperative evaluation of the implant itself, improving results for experienced surgeons and reducing the learning-curve for inexperienced ones. CONCLUSIONS: Results of endoscopic injection of bulking-agent can be improved with intraoperative ultrasound, allowing at the same time a significant reduction of operative time.
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Reflujo Vesicoureteral , Niño , Humanos , Lactante , Estudios de Seguimiento , Reflujo Vesicoureteral/diagnóstico por imagen , Reflujo Vesicoureteral/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Cistoscopía/métodos , Ácido Hialurónico , DextranosRESUMEN
Double-J ureteral stents are usually placed after various urological procedures. The dislodgement of their distal ringlet is a rare complication, whose retrieval is arduous in younger children, due to the small ureteral caliber. We propose our innovative endoscopic approach to recover the dislodged JJ stent. Under 8-9.8 Ch cystoscopy, the ureteral meatus is gently cannulated with a 00.18â³ guidewire, then a balloon catheter Passeo 18 3-4 mm (Biotronik, Lake Oswego, OR, USA) is coaxially inserted. A pneumatic dilatation of the vesical-ureteral junction is performed up to 8 atmospheres for 5 minutes under direct vision. Consequently, the ureteral meatus allows the cystoscope passage, and the JJ-stent can be recovered thanks to endoscopic grasping forceps. A mono-J stent is then left in place for 24 hours. Four patients aged 8 months - 4 years have been successfully treated with this approach after that JJ migration was found intraoperatively or during ultrasonography. No intra- or postoperative complications occurred. Postoperative hospital stay was prolonged for one day. During 29.5 medium follow-up no clinical or ultrasonographic signs of vesical-ureteral reflux ensued. Our cystoscopic approach is effective and safe to ensure a prompt endoscopic JJ retrieval without changing neither surgical approach nor the anesthesiological support. We believe that all the pediatric urology centers should know the procedure and have small size balloon catheter available.
Asunto(s)
Uréter , Reflujo Vesicoureteral , Niño , Humanos , Preescolar , Uréter/diagnóstico por imagen , Uréter/cirugía , Reflujo Vesicoureteral/cirugía , Cistoscopía , Atmósfera , StentsRESUMEN
PURPOSE: To validate the effectiveness of Deflux® treatment for vesicoureteral reflux (VUR) following pediatric renal transplantation (RT), based on our single-institution experience. METHOD: A retrospective study was conducted using the medical records of pediatric patients who underwent Deflux® treatment for VUR after RT from April 2008 to March 2022. RESULTS: Sixty-eight pediatric patients underwent RT. VUR was subsequently detected in 22 (32 %) of these patients. Seven of the 22 patients (32 %) underwent Deflux® treatment to avoid renal dysfunction due to urinary infection (UTI). The median age at the time of RT was 4 years (range:2-12). All 7 patients had urinary UTIs before Deflux® treatment. The median estimated glomerular filtration rate (eGFR) before Deflux® treatment was 67 ml/min/1.73 m2 (range:42-138 ml/min/1.73 m2). After Deflux® treatment, VUR was downgraded in three cases (43 %). Four patients (57 %) experienced postoperative UTI, two of who underwent a second Deflux® treatment, one underwent submuscular tunnel reconstruction, and the other one experienced UTI without VUR after 1st Deflux® treatment but did not reoccur. All seven patients continued prophylactic medication after Deflux® treatment, without any history of recurrent UTIs during the observation period after treatment (median 37 months [range 7-86 months]). Furthermore, the eGFRs did not significantly decrease after Deflux® treatment (median eGFR 58 ml/min/1.73 m2 [range:33-99 ml/min/1.73 m2], p > 0.1). CONCLUSION: Deflux® treatment for VUR after RT is technically challenging because the new ureteral orifice is ventrally anastomosed at the bladder. We believe our results indicate the possibility of reducing the frequency of UTIs and contributing to preservation of the renal function after RT. TYPE OF STUDY: Retrospective Study. LEVEL OF EVIDENCE: Level III.
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Trasplante de Riñón , Infecciones Urinarias , Reflujo Vesicoureteral , Niño , Humanos , Lactante , Preescolar , Reflujo Vesicoureteral/etiología , Reflujo Vesicoureteral/cirugía , Trasplante de Riñón/efectos adversos , Estudios Retrospectivos , Dextranos/uso terapéutico , Ácido Hialurónico/uso terapéutico , Infecciones Urinarias/etiología , Infecciones Urinarias/prevención & control , Infecciones Urinarias/tratamiento farmacológicoRESUMEN
BACKGROUND: To determine the utility of contrast-enhanced voiding urography (CeVUS) in the treatment of vesicoureteral reflux (VUR) through ureterovesical reimplantation in children. METHODS: A total of 159 children with recurrent urinary tract infections were selected for CeVUS and voiding cystourethrography (VCUG) from December 2018 to December 2020, among whom 78 patients were eventually diagnosed with VUR. Overall, 60 pyelo-ureteric units (PUUs) were operated according to surgical indications. Accordingly, we determined the general clinical characteristics of all children, obtained two-dimensional ultrasound images, assessed the reflux status of children using the contrast-enhanced technique, and compared the obtained results via CeVUS and VCUG. Both imaging modalities were reperformed at 6, 12, and 18 months after surgery to evaluate postoperative outcomes. In particular, we assessed the consistency of the evaluation and calculated the diagnostic efficacy of CeVUS for different levels of reflux at different time points. RESULTS: CeVUS showed considerable efficacy in the diagnosis of children with VUR. Notably, the diagnostic results of both CeVUS and VCUG achieved high agreement, with a kappa value of 0.966 (P < 0.001). The results of our follow-up at different stages and evaluation of postoperative efficacy revealed that CeVUS possessed substantial diagnostic efficacy and good consistency with VCUG. CONCLUSION: CeVUS is an accurate and safe examination, with considerable clinical significance for diagnosing VUR in children, determining the treatment approach, conducting follow-up during treatment, and evaluating subsequent treatment outcomes.
Asunto(s)
Uréter , Reflujo Vesicoureteral , Niño , Humanos , Lactante , Reflujo Vesicoureteral/diagnóstico por imagen , Reflujo Vesicoureteral/cirugía , Medios de Contraste , Ultrasonografía/métodos , Urografía/métodos , MicciónRESUMEN
OBJECTIVE: The aim of our study is to compare long-term outcome of endoscopic treatment of VUR using PPC or Dx/HA. PATIENTS AND METHODS: From October 2014 to April 2017 patients with VUR grades from 3 to 5 that needed endoscopic treatment were eligible for this RCT. Patients were randomized in two groups: PPC and Dx/HA. A VCUG was performed at 6 months; if VUR > 3 was still present a second ET was performed. We included for this long-term follow-up study those patients that were successfully treated at short-term follow-up. At 36 months postoperative VCUG was performed to assess outcome. Success was considered if postoperative VUR grade was 0 at 36 months, and there was no ureteral obstruction. RESULTS: In the previous study, 60/73 ureters were successfully treated in 36/44 patients, and then we have analyzed 60 ureters in 36 patients. Three patients were lost in long-term follow-up, and then we analyzed 57 ureters in 33 patients divided. PPC group 18 patients (28 ureters); and Dx/HA group 15 patients (29 ureters). After 3 years of follow-up the VCUG showed a success rate of 26/28 of RU in PPC and 26/29 of DX/HA. Two RU in PPC group had ureteral obstruction, and then the successful rate for PPC group dropped to 24/28. The overall successful rate at long-term was 72.7% of the RU in PPC group and 70.3% in Dx/HA group. CONCLUSION: PPC and Dx/HA has similar long-term outcome in VUR resolution, but ureteral obstruction could be present at long-term follow-up in PPC group.
Asunto(s)
Obstrucción Ureteral , Reflujo Vesicoureteral , Humanos , Estudios de Seguimiento , Reflujo Vesicoureteral/cirugía , Obstrucción Ureteral/cirugía , Estudios Retrospectivos , Ácido Hialurónico/uso terapéutico , Resultado del TratamientoRESUMEN
BACKGROUND: There is lack of evidence on the success of robot-assisted laparoscopic ureteral reimplantation (RALUR) for the treatment of vesicoureteral reflux (VUR) who had prior intervention. OBJECTIVE: This study aimed to evaluate the effect of previous unsuccessful STING on the outcomes of RALUR in children. STUDY DESIGN: A total of 67 children treated with RALUR by a single surgeon for the treatment of VUR were scanned between February 2018 and April 2022. Two patients were excluded from the final data analysis due to the presence of a megaureter. Patients were divided into two groups: those with a history of STING (Group A - n:14) and those without STING (Group B - n:51). Patient characteristics, previous numbers of injections, console time, total operative time, perioperative and postoperative complications and clinical success data were collected. Clavien Dindo and Satava complication scales were used as the standard record of peri and postoperative complications. Radiographic success was defined as absence of reflux detected on postoperative voiding cystourethrography, whereas clinical success was defined as the absence of a febrile urinary tract infection during the follow-up. Mann-Whitney U and Chi-square tests and Fisher exact test were used where appropriate. RESULTS: A total of 36 (55.3%) female versus 29 (44.6%) male patients were operated for 96 refluxive ureters. Nearly half of the patients were with bilateral VUR (n = 31). The mean follow-up was 20.2 ± 15.4 months. The median age of patients was 59 ± 31 (range: 28-132 months) versus 46 ± 33.1 (range: 7-206 months) for groups A and B respectively (p = 0.22). Gender, age, peri- and postoperative complication rates, and clinical success were comparable between the two groups. The median operative time and the console time was significantly higher in children with history of STING (op time: 142.5 ± 27.4 versus 120 ± 24.9 min (p = 0.008), console time: 117.5 ± 28.2 versus 100 ± 24.5 min (p = 0.011) for groups A and B, respectively. A total of six complications (9.2%) occurred with none of them were greater than Clavien grade 3b. The overall clinical success rate was 97%, with 2 cases of clinical failure. In both cases, VCUG demonstrated absence of VUR. DISCUSSION: The outcomes of our study provided that RALUR is effective with more than 95% success rates despite failed endoscopic injection procedures. CONCLUSION: The previous history of STING neither changes the success nor the complication rates of RALUR. However, this can lead to more challenging surgery by increasing the total operative times.
Asunto(s)
Laparoscopía , Robótica , Uréter , Reflujo Vesicoureteral , Niño , Preescolar , Femenino , Humanos , Masculino , Laparoscopía/métodos , Complicaciones Posoperatorias/cirugía , Reimplantación/métodos , Estudios Retrospectivos , Resultado del Tratamiento , Uréter/cirugía , Reflujo Vesicoureteral/diagnóstico , Reflujo Vesicoureteral/cirugía , Reflujo Vesicoureteral/complicaciones , Lactante , AdolescenteRESUMEN
PURPOSE: To evaluate UDR reliability, sensitivity, specificity and to identify the best treatment basing on UDR among single or double endoscopic injections and ureteral reimplantation. METHODS: Data of patients affected by primary VUR and treated by endoscopic injection over a 10 years period were retrospectively analyzed. Two radiologist attributed reflux grade and UDR on voiding cystourethrogram twice and blinded. Follow-up focused on resolution after 1 or 2 endoscopic injections. Relation between UDR, reflux grade and outcomes were analyzed. RESULTS: Patient enrolled were 198. Low grade VUR was present in 24.8%, grade 3 in 41.6%, grade 4-5 in 33.6%. Resolution after one injection was obtained in 88 patients; among 110 not resolved 104 cases had a second injection. Success after 2 injections was reported in 138 cases. UDR showed a higher reliability compared with reflux grade both in intra than inter-reader measurement (ICC > 90%). Success after 1 or 2 injections was reported for UDR < 0.33 and UDR < 0.47 respectively. CONCLUSION: UDR shows to be a more reliable measurement that allows for an objective estimation of VUR severity and prognosis. It represents a quantitative parameter that might be useful to identify patients who may benefit endoscopic or surgical treatment, avoiding unnecessary under or over-treatment.
Asunto(s)
Uréter , Reflujo Vesicoureteral , Humanos , Niño , Reflujo Vesicoureteral/diagnóstico por imagen , Reflujo Vesicoureteral/cirugía , Reproducibilidad de los Resultados , Estudios Retrospectivos , Uréter/diagnóstico por imagen , Uréter/cirugía , ReimplantaciónRESUMEN
BACKGROUND: Vesicoureteral junction (VUJ) obstruction after Deflux® subureteral injection for vesicoureteral reflux (VUR) is rare and minimally invasive management has not been reported. This work investigated the patients who underwent Deflux® injection for VUR and identified those with subsequent VUJ obstruction. METHODS: Medical records of matched patients from October 2003 to March 2022 were reviewed, and parameters were retrospectively studied. All patients underwent Deflux® injection. The injection was performed under general anesthesia using the same manner. For patients complicated with VUJ obstruction, the symptoms, signs, management, images, renal ultrasounds, Tc-99m dimercaptosuccinic acid renal scintigraphy, histology of VUJ region, and outcomes were documented and reported. VUJ stenosis was diagnosed by performing renal ultrasound and magnetic resonance imaging. RESULTS: Totally 407 patients (554 ureterorenal units) received Dx/HA injections for VUR. VUJ obstruction was found in three patients (four ureterorenal units). Originally, three were grade V VUR, and one was grade IV. The repeated injection was not a risk factor for VUJ obstruction. The overall incidence of VUJ obstruction post-Dx/HA injection was 0.7% by ureter. The incidences were 0%, 0.75%, and 2.25% for grade I-III, IV, and V VUR, respectively. After the initial conversion case of pneumovesicoscopic ureteral reimplantation, the procedure was performed smoothly and successfully in the two following cases. CONCLUSIONS: Pneumovesicoscopic ureteral reimplantation offers an alternative for VUJ obstruction following Dx/HA injection for VUR. Fibrosis and foreign-body reaction may influence the feasibility. High-grade VUR and young age of injection were related to VUJ obstruction.