BACKGROUND Renal duplication is a common deformity of the urinary system,with an incidence of approximately 1/125 in children.Symptomatic patients with hydronephrosis,vesicoureteral reflux,or incontinence may require ...BACKGROUND Renal duplication is a common deformity of the urinary system,with an incidence of approximately 1/125 in children.Symptomatic patients with hydronephrosis,vesicoureteral reflux,or incontinence may require surgical interventions.Laparoscopy and retroperitoneoscopy are the two main accesses for partial nephrectomy.CASE SUMMARY A 9-year-old child was admitted to the hospital for hydronephrosis of the left kidney.Ultrasonography showed that the left kidney was larger,approximately 12.6 cm×6.3 cm×5.5 cm in size,with visible separation of the pelvis and an obviously separated lower portion.The upper segment of the left ureter was dilated(approximately 2.6 cm in width),and no significant dilation was observed in the middle and upper segments.The right kidney and ureter were normal.Primary diagnosis was left renal duplication malformation and hydronephrosis.Retroperitoneal laparoscopic nephrectomy and ureterectomy were performed.Intraoperative exploration revealed a dilated pelvis and thin renal parenchyma at the lower pole of the left kidney.The upper left kidney was smaller than normal,and the pelvis and ureter were larger than normal.The renal artery was blocked for 40 min.A hemolock was used to clamp down the kidney ureter,and a drainage tube was retained in the retroperitoneal cavity.The operation was uneventful,and the estimated amount of blood loss was 100 mL.Total abdominal drainage amount was 116 mL.The drainage tube was removed on postoperative day(POD)3 and the patient was discharged on POD6.The pathological diagnosis confirmed the atrophy of the renal parenchyma,the dilation of the renal pelvis,hydronephrosis,and ureteral cystic dilation.CONCLUSION The retroperitoneoscopic approach for partial nephrectomy is feasible and effective in selective pediatric patients with a duplex kidney.展开更多
BACKGROUND Duplication of the renal pelvis is a common congenital malformation of the urinary system.About one-third of cases are complete unilateral duplication of the renal pelvis,while bilateral duplication is extr...BACKGROUND Duplication of the renal pelvis is a common congenital malformation of the urinary system.About one-third of cases are complete unilateral duplication of the renal pelvis,while bilateral duplication is extremely rare.Herein,we described a single case of bilateral renal duplication with double ureteral orifice ectopic vaginal fistula treated with laparoscopy.CASE SUMMARY A 6-year-old girl suffering from long-term vaginal leakage was admitted on June 10,2018.She was diagnosed with complete duplication of both kidneys and ureters and ectopic opening of both ureters combined with ureterovaginal fistula.The patient received laparoscopic ectopic ureteral bladder replantation and was followed up for 2 years.No renal function damage and vaginal leakage were found.CONCLUSION Laparoscopic bladder-ureter reimplantation could effectively determine the location and number of ectopic ureters by imaging and cystoscopy.展开更多
Objective To investigate the efficacy of retroperitoneal laparoscopic heminephroureterectomy for duplex kidney anomalies. Methods Retroperitoneoscopic heminephroureterectomy was performed on nine patients,six males an...Objective To investigate the efficacy of retroperitoneal laparoscopic heminephroureterectomy for duplex kidney anomalies. Methods Retroperitoneoscopic heminephroureterectomy was performed on nine patients,six males and three females. The average age of the展开更多
Duplex kidney,also known as duplicated kidney or renal duplication,is a form of congenital anomaly of kidney and urinary tract(CAKUT)characterized by the presence of two pelvicalyceal systems,dividing a kidney into up...Duplex kidney,also known as duplicated kidney or renal duplication,is a form of congenital anomaly of kidney and urinary tract(CAKUT)characterized by the presence of two pelvicalyceal systems,dividing a kidney into upper and lower pole moieties.The incidence of duplex kidneys has been reported to be 0.8-1.8% in general population[1,2].展开更多
A study of 32 cases with renal duplication was reported.According to its pathological features, 3 typies were clas-sified, disdeveloped, developed and hydronephrotic type.The developed type could be well diagnosed by ...A study of 32 cases with renal duplication was reported.According to its pathological features, 3 typies were clas-sified, disdeveloped, developed and hydronephrotic type.The developed type could be well diagnosed by means ofintrovenous urography (IVP) and SPECT. The relation-ship between these types with the images of IVP andSPECT and the choice of operation was discussed. Ifa kidney displaced low and laterally on IVP image orthere was a delayed SPECT image the renal duplicationshould be considered.展开更多
Background: Incomplete ureteric duplication can be associated with either ureteropelvic obstruction involving the lower moiety or reflux between the ureters (yo-yo reflux). Yo-yo reflux can be a cause of repeated urin...Background: Incomplete ureteric duplication can be associated with either ureteropelvic obstruction involving the lower moiety or reflux between the ureters (yo-yo reflux). Yo-yo reflux can be a cause of repeated urinary tract infection with subsequent renal damage. Aim of the work: The current study evaluated the presence of yo-yo reflux as reason of upper moiety dilation in cases with incomplete duplication of upper urinary tract. Methodology: 10 cases with a dilated upper moiety of duplex renal pelvicalyceal system were examined with color duplex ultrasonography. All were further investigated with intravenous pyelography (IVP), and ascending/micturating cystography. Results: 9 cases with upper moiety dilation showed complete duplication of the pelvicalyceal systems and ureters and 1 case with dilated upper moiety showed incomplete ureteric duplication in which the diagnosis of Yo-yo reflux was confirmed by color duplex ultrasound in addition to the intravenous pyelography findings. Conclusion: The presence of antegrade/retrograde flow within the dilated moiety of a duplex kidney during color duplex study in addition to the intravenous pyelography findings can confirm the diagnosis of yo-yo reflux.展开更多
文摘BACKGROUND Renal duplication is a common deformity of the urinary system,with an incidence of approximately 1/125 in children.Symptomatic patients with hydronephrosis,vesicoureteral reflux,or incontinence may require surgical interventions.Laparoscopy and retroperitoneoscopy are the two main accesses for partial nephrectomy.CASE SUMMARY A 9-year-old child was admitted to the hospital for hydronephrosis of the left kidney.Ultrasonography showed that the left kidney was larger,approximately 12.6 cm×6.3 cm×5.5 cm in size,with visible separation of the pelvis and an obviously separated lower portion.The upper segment of the left ureter was dilated(approximately 2.6 cm in width),and no significant dilation was observed in the middle and upper segments.The right kidney and ureter were normal.Primary diagnosis was left renal duplication malformation and hydronephrosis.Retroperitoneal laparoscopic nephrectomy and ureterectomy were performed.Intraoperative exploration revealed a dilated pelvis and thin renal parenchyma at the lower pole of the left kidney.The upper left kidney was smaller than normal,and the pelvis and ureter were larger than normal.The renal artery was blocked for 40 min.A hemolock was used to clamp down the kidney ureter,and a drainage tube was retained in the retroperitoneal cavity.The operation was uneventful,and the estimated amount of blood loss was 100 mL.Total abdominal drainage amount was 116 mL.The drainage tube was removed on postoperative day(POD)3 and the patient was discharged on POD6.The pathological diagnosis confirmed the atrophy of the renal parenchyma,the dilation of the renal pelvis,hydronephrosis,and ureteral cystic dilation.CONCLUSION The retroperitoneoscopic approach for partial nephrectomy is feasible and effective in selective pediatric patients with a duplex kidney.
文摘BACKGROUND Duplication of the renal pelvis is a common congenital malformation of the urinary system.About one-third of cases are complete unilateral duplication of the renal pelvis,while bilateral duplication is extremely rare.Herein,we described a single case of bilateral renal duplication with double ureteral orifice ectopic vaginal fistula treated with laparoscopy.CASE SUMMARY A 6-year-old girl suffering from long-term vaginal leakage was admitted on June 10,2018.She was diagnosed with complete duplication of both kidneys and ureters and ectopic opening of both ureters combined with ureterovaginal fistula.The patient received laparoscopic ectopic ureteral bladder replantation and was followed up for 2 years.No renal function damage and vaginal leakage were found.CONCLUSION Laparoscopic bladder-ureter reimplantation could effectively determine the location and number of ectopic ureters by imaging and cystoscopy.
文摘Objective To investigate the efficacy of retroperitoneal laparoscopic heminephroureterectomy for duplex kidney anomalies. Methods Retroperitoneoscopic heminephroureterectomy was performed on nine patients,six males and three females. The average age of the
文摘Duplex kidney,also known as duplicated kidney or renal duplication,is a form of congenital anomaly of kidney and urinary tract(CAKUT)characterized by the presence of two pelvicalyceal systems,dividing a kidney into upper and lower pole moieties.The incidence of duplex kidneys has been reported to be 0.8-1.8% in general population[1,2].
文摘A study of 32 cases with renal duplication was reported.According to its pathological features, 3 typies were clas-sified, disdeveloped, developed and hydronephrotic type.The developed type could be well diagnosed by means ofintrovenous urography (IVP) and SPECT. The relation-ship between these types with the images of IVP andSPECT and the choice of operation was discussed. Ifa kidney displaced low and laterally on IVP image orthere was a delayed SPECT image the renal duplicationshould be considered.
文摘Background: Incomplete ureteric duplication can be associated with either ureteropelvic obstruction involving the lower moiety or reflux between the ureters (yo-yo reflux). Yo-yo reflux can be a cause of repeated urinary tract infection with subsequent renal damage. Aim of the work: The current study evaluated the presence of yo-yo reflux as reason of upper moiety dilation in cases with incomplete duplication of upper urinary tract. Methodology: 10 cases with a dilated upper moiety of duplex renal pelvicalyceal system were examined with color duplex ultrasonography. All were further investigated with intravenous pyelography (IVP), and ascending/micturating cystography. Results: 9 cases with upper moiety dilation showed complete duplication of the pelvicalyceal systems and ureters and 1 case with dilated upper moiety showed incomplete ureteric duplication in which the diagnosis of Yo-yo reflux was confirmed by color duplex ultrasound in addition to the intravenous pyelography findings. Conclusion: The presence of antegrade/retrograde flow within the dilated moiety of a duplex kidney during color duplex study in addition to the intravenous pyelography findings can confirm the diagnosis of yo-yo reflux.
