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The vascular hitch: a simpler procedure for vascular pyeloureteral junction obstruction (PUJO)
Ureteropelvic junction obstruction may occur in about 10% of cases, the origin of which is not an intrinsic organic obstruction in this transitional area between the renal pelvis and the ureter, but it is rather secondary to an extrinsic obstruction, related to the presence of aberrant lower pole vessels.
It is an intermittent ureteropelvic junction obstruction syndrome, which is usually diagnosed late and in which renal function is most often preserved. The operating technique was already described more than 60 years ago. It is a simple technique.
The greatest difficulty is not technical but lies in the indication which must be relevant. The main difficulty is to preoperatively and intraoperatively evaluate either the totally extrinsic nature or conversely the mixed nature of the obstruction, which in that case requires a pyeloplasty according to Anderson-Hynes with division of the ureterovesical junction posteriorly to the vessels and reconstruction of the ureteropelvic junction once enlarged, anteriorly to the lower pole vessels.
I Mushtaq
Lecture
3 years ago
537 views
32 likes
0 comments
13:17
The vascular hitch: a simpler procedure for vascular pyeloureteral junction obstruction (PUJO)
Ureteropelvic junction obstruction may occur in about 10% of cases, the origin of which is not an intrinsic organic obstruction in this transitional area between the renal pelvis and the ureter, but it is rather secondary to an extrinsic obstruction, related to the presence of aberrant lower pole vessels.
It is an intermittent ureteropelvic junction obstruction syndrome, which is usually diagnosed late and in which renal function is most often preserved. The operating technique was already described more than 60 years ago. It is a simple technique.
The greatest difficulty is not technical but lies in the indication which must be relevant. The main difficulty is to preoperatively and intraoperatively evaluate either the totally extrinsic nature or conversely the mixed nature of the obstruction, which in that case requires a pyeloplasty according to Anderson-Hynes with division of the ureterovesical junction posteriorly to the vessels and reconstruction of the ureteropelvic junction once enlarged, anteriorly to the lower pole vessels.
Laparoscopic retroperitoneal pyeloplasty
Ureteropelvic junction obstruction repair can be performed in the first months of the infant’s life by means of videoscopic surgery. Two approaches can be used. First, the transperitoneal access offers a fairly large surgical space. On the other hand, it implies that the surgeon accesses a retroperitoneal organ by opening the posterior parietal peritoneum. To the right, kidney exposure may necessitate the detachment of the right colon and of the duodenum and the surgeon often has to lift up the right liver.
To the left, the exposure of the ureteropelvic junction may require either a colonic detachment, or a transmesocolic opening by respecting the vascular supply of the left colon. The retroperitoneal approach is direct. It helps to better manage any potential urinary leaks, which will never occur intraperitoneally. It prevents any intraperitoneal dissection. However, it is a demanding technique technically speaking.
A El-Ghoneimi
Lecture
3 years ago
988 views
48 likes
0 comments
28:15
Laparoscopic retroperitoneal pyeloplasty
Ureteropelvic junction obstruction repair can be performed in the first months of the infant’s life by means of videoscopic surgery. Two approaches can be used. First, the transperitoneal access offers a fairly large surgical space. On the other hand, it implies that the surgeon accesses a retroperitoneal organ by opening the posterior parietal peritoneum. To the right, kidney exposure may necessitate the detachment of the right colon and of the duodenum and the surgeon often has to lift up the right liver.
To the left, the exposure of the ureteropelvic junction may require either a colonic detachment, or a transmesocolic opening by respecting the vascular supply of the left colon. The retroperitoneal approach is direct. It helps to better manage any potential urinary leaks, which will never occur intraperitoneally. It prevents any intraperitoneal dissection. However, it is a demanding technique technically speaking.