scholarly journals Ureterocystoplasty using the lower pole ureter of a duplex kidney with preservation of ipsilateral renal function

2012 ◽  
Vol 18 (4) ◽  
pp. 167-169
Author(s):  
John Lazarus
Keyword(s):  
Renal Function ◽  
Lower Pole ◽  
Duplex Kidney

Videolaparoscopic lower pole heminephrectomy for treatment of a duplex kidney

2019 ◽  
Vol 15 (2) ◽  
pp. 193-194
Author(s):  
G. Lang-Motta ◽  
E. Llorens de Knecht ◽  
J.M. Gaya Sopena ◽  
Y. Quiróz Madarriaga ◽  
A. Bujons Tur
Keyword(s):  
Lower Pole ◽  
Duplex Kidney

scholarly journals Open Partial Nephrectomy for Pediatric Renovascular Hypertension

2009 ◽  
Vol 9 ◽  
pp. 287-290 ◽  
Author(s):  
Matt S. Ashley ◽  
Gregory Moneta ◽  
Siamak Daneshmand
Keyword(s):  
Renal Function ◽  
Partial Nephrectomy ◽  
Renovascular Hypertension ◽  
Radical Nephrectomy ◽  
Antihypertensive Medication ◽  
Alternative Therapy ◽  
Lower Pole ◽  
Renal Veins ◽  
Open Partial Nephrectomy ◽  
Arterial Bypass

Pediatric renovascular hypertension is typically managed with revascularization, angioplasty, or radical nephrectomy. We describe the case of a 13-year-old boy with medically refractory renovascular hypertension who presented to our institution after a failed arterial bypass. Subsequent angiography and renin sampling of the segmental renal veins suggested that the lower pole of the kidney was affected exclusively by the relative hypoperfusion. We proceeded with an open partial nephrectomy in order to excise the affected region of the kidney, while preserving maximum renal function. The patient was normotensive off all antihypertensive medication and without complications 8 months postoperatively. We believe that partial nephrectomy is a reasonable treatment for children with renovascular hypertension secondary to segmental hypoperfusion, and it should be considered as alternative therapy.

Renal dysplasia

2015 ◽  
Author(s):  
Michiel F. Schreuder
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Renal Dysplasia ◽  
Residual Renal Function ◽  
Polycystic Kidney ◽  
Duplex Kidney ◽  
Clinical Consequences ◽  
Corticomedullary Differentiation ◽  
Post Infectious

Renal dysplasia refers to abnormal and incomplete development of the kidney, which may be segmental, for instance, in the upper part of a duplex kidney, or affect the entire kidney. Dysplasia is by definition a histological diagnosis, but in most patients diagnosis is made on the basis of evaluation with ultrasound and renography. This typically shows cysts and/or a small kidney with decreased corticomedullary differentiation and a reduced split renal function. The latter can also be found in other conditions, such as hypoplasia, vascular insults, renal post-infectious damage, or polycystic kidney disease, making it difficult to establish the diagnosis and thereby estimate the incidence of renal dysplasia. The clinical consequences of renal dysplasia depend upon the residual renal function and may range from hypertension to chronic kidney disease.

scholarly journals Nephron-Sparing Surgery for Adenocarcinoma in a Renal Allograft

2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Fernando Vázquez Alonso ◽  
Enrique Cardozo Rodríguez ◽  
Ignacio Puche Sanz ◽  
Jose Francisco Flores Martin ◽  
Jose Miguel Molina Hernandez ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Renal Function ◽  
Renal Transplant ◽  
Renal Allograft ◽  
Malignant Tumors ◽  
Nephron Sparing Surgery ◽  
Lower Pole ◽  
Renal Allografts ◽  
Nephron Sparing ◽  
Transplanted Kidneys

The incidence of malignant tumors in recipients of renal allografts is higher than in the general population. Renal cell carcinoma (RCC) accounts for 4.6% of the tumors in transplanted patients; of them, only 10% are found in transplanted kidneys. Transplantectomy has always been the usual treatment. However, during the last years, nephron-sparing surgery of the allograft is more frequently done in well-selected cases, and therefore dialysis can be avoided. We report the case of a 37-year-old female patient with renal transplant, diagnosed with a 4.5 cm tumor in the lower pole of the renal allograft. The patient underwent partial nephrectomy successfully. Six years after surgery, there is no evidence of recurrence of the disease and the patient maintains an adequate renal function.

scholarly journals Features of surgical treatment of obstruction of the pyeloureteral segment of the lower half of the doubled kidney against the background of incomplete doubling of the upper urinary tract

2020 ◽  
Vol 13 (4) ◽  
pp. 140-145
Author(s):  
V.V. Sizonov ◽  
◽  
S.G. Bondarenko ◽  
I.M. Kagantsov ◽  
V.I. Dubrov ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Surgical Treatment ◽  
Low Frequency ◽  
Upper Urinary Tract ◽  
Reconstruction Technique ◽  
Lower Pole ◽  
Duplex Kidney ◽  
Simultaneous Formation ◽  
Group 3 ◽  
End To End

Introduction. The combination duplication of upper urinary tract with ureteropelvic junction obstruction (UPJO) is a rather rare anomaly with a frequency of 2-7% among all UPJO. The rather low frequency of occurrence of UPJO in the duplex kidney and the variability of its anatomical variants determine the absence of standardized approaches to the choice of the method of plastic intervention. Materials and methods. The article presents the results of surgical treatment of 26 children with UPJO in the lower pole of a duplex kidney over the past 20 years in 7 clinics of the Russian Federation and the Republic of Belarus. Children are divided into 3 groups depending on the type of surgical technique. Group 1 – dismembered pyeloplasty of the lower pole with the formation of an end-to-end anastomosis between the pelvis and the ureter of the lower pole. Group 2 – ureteropyeloanastomosis side-to-side between the ureter of the upper pole and the pelvis of the lower pole. Group 3 – dismembered pyeloplasty of the lower pole end-to-end with a common ureter with simultaneous formation of a submerged ureteropyeloanastomosis end-to-side between the ureter of the upper pole and the pelvis of the lower pole. Results. Postoperative complications of varying severity according to Clavien-Dindo were observed in 4 (15.4%) children. 3 (11.5%) patients required repeated pyeloplasty. The immersive anastomosis in group 3 patients functioned satisfactorily in all cases. Conclusion. The experience of surgical treatment of UPJO in the lower pole of the duplex kidney demonstrates a higher recurrence rate compared to standard pyeloplasty. The variability of the anatomical features of the UPJO of the lower pole of the duplex kidney determines the need for a personalized approach to the choice of the UPJO reconstruction technique.

scholarly journals Relationship between Kidney Size, Renal Injury, and Renal Impairment Induced by Shock Wave Lithotripsy

1999 ◽  
Vol 10 (8) ◽  
pp. 1753-1762
Author(s):  
LYNN R. WILLIS ◽  
ANDREW P. EVAN ◽  
BRET A. CONNORS ◽  
PHIL BLOMGREN ◽  
NAOMI S. FINEBERG ◽  
...  
Keyword(s):  
Shock Wave ◽  
Renal Function ◽  
Shock Waves ◽  
Impaired Renal Function ◽  
Shock Wave Lithotripsy ◽  
Renal Plasma Flow ◽  
Lower Pole ◽  
Kidney Size ◽  
Renal Vasoconstriction ◽  
The Relationship

Abstract. The relationship between kidney size and impaired renal function induced by shock-wave lithotripsy (SWL) was examined in 6- and 10-wk-old anesthetized pigs. Each pig received 2000 shock waves, 24 kV, or sham SWL to the lower pole calyx of one kidney. Bilateral GFR, renal plasma flow (RPF), and para-aminohippurate extraction was measured 1 h before and 1 and 4 h after SWL. The kidneys were then removed for morphometric analysis. Mean kidney weights were 66.1 ± 2.7 g (n = 9) and 103.1 ± 3.3 g (n = 8) in the SWL groups, and 60.1 ± 2.6 g (n = 9) and 82.3 ± 4.0 g (n = 9) in the sham-SWL groups. SWL-induced lesions occupied a significantly greater volume of the small kidneys (6.1 ± 1.7 vol % versus 1.5 ± 0.2 vol % in the large kidneys). RPF was significantly reduced by SWL in small and large kidneys, but to a significantly greater extent in small kidneys. RPF was also significantly reduced in the contralateral kidneys of both groups, but only at 1 h after SWL. SWL significantly reduced GFR to similar degrees in both kidneys of both groups, regardless of kidney size. Para-aminohippurate extraction was likewise reduced to similar degrees in both groups, but this effect was evident only in the SWL-treated kidneys, and only in the pole to which the shock waves had been applied. The injury induced by SWL affected a larger fraction of small kidneys than large ones, and the renal vasoconstriction induced by SWL was greatest in small kidneys.

Sign in / Sign up

Export Citation Format

Share Document