Evaluation of the duration of ureteral stenting following endopyelotomy: Animal study

Soria, Federico; Rioja, L.A.; Blas, Miguel; Durán, Esther; Usón, Jesús

doi:10.1111/j.1442-2042.2006.01543.x

Cited by 15 publications

(18 citation statements)

References 24 publications

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“…our institutional ethics committee approved the experimental protocol. Hydronephrosis of the beagles was induced by ligating the right ureter partially to the psoas . After 2–4 weeks, hydronephrosis grade was evaluated using a sonographic scanner (IU22; Phillips, Amsterdam, Netherlands) and a 2D US probe (C5‐2).…”

Section: Methodsmentioning

confidence: 99%

Usefulness of real‐time three‐dimensional ultrasonography in percutaneous nephrostomy: an animal study

et al. 2018

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Section: Methodsmentioning

confidence: 99%

Usefulness of real‐time three‐dimensional ultrasonography in percutaneous nephrostomy: an animal study

et al. 2018

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“…The importance of using a stent postoperatively to act as a scaffold for urothelial myofibroblast regeneration and to prevent urinoma formation is undisputed [8] . However, the optimal stent size for promoting satisfactory UPJ healing has not been determined yet [9] .…”

Section: Discussionmentioning

confidence: 99%

“…A healing score was developed which included urothelial resurfacing, mural inflammation, lamina propia fibrosis, muscular layer fibrosis, musculature integrity and serosal alterations. The alterations were assessed separately for each parameter [7,8] . To this end, each parameter was graded according to the following range of scores: 0 = no histopathologic changes; to 3 = worst effect in histopathologic architecture.…”

Section: Phase Imentioning

confidence: 99%

“…Once the urinary system was evaluated, an experimental UPJ obstruction in the right kidney was created, as previously described by the modified Nakada model [7] : the adventitial layer of the UPJ is first coagulated with laparoscopic forceps, and after partially occluding the ureteral lumen using the laparoscopic approach a 3/0 polyglycolic acid ligature is placed [8] .…”

Section: Phase Imentioning

confidence: 99%

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Ureteral Double-J Wire Stent Effectiveness after Endopyelotomy: An Animal Model Study

Soria

Delgado²,

Rioja³

et al. 2010

Urol Int

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Objectives: The aim of this experimental study was to assess the possibility of decreasing the size of the ureteral stents used after an endopyelotomy. To this end, an experimental study was performed which compared a ureteral double-J wire stent versus a standard 7F ureteral stent after endopyelotomy. Methods: Twenty healthy female pigs were randomly divided into 2 groups: group I (double pigtail ureteral stent 7F) and group II (lumenless ureteral double-J wire stent, Zebrastent™, 0.035 inches in diameter). Percutaneous, endoluminal ultrasonographic and fluoroscopic studies were analyzed during the 3 different phases of the study. The first phase included premodel documentation of normal urinary tracts and laparoscopic ureteropelvic junction (UPJ) obstruction induction. During the second phase, 6 weeks later, diagnosis and endopyelotomy were carried out. Sixteen weeks after the obstruction treatment, follow-up imaging studies and postmortem evaluations of all animals were performed. Results: After the sonographic and fluoroscopic assessments, we determined the success rate for each group: 80% for group I and 90% for group II. No significant statistical differences were evident in the evolution of the diameter of the UPJ between groups. Better healing of the UPJ and a lower level of retroperitoneal repercussions were seen in group II. Conclusions:The ureteral double-J wire stent (Zebrastent) has been shown to be highly effective after endopyelotomy. This means that it is possible to reduce the size of ureteral stents after endopyelotomy with the advantages that this entails. Double-J ureteral stents probably act as a scaffold rather than a mold.

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“…Stenting duration to treat perforations is usually 4-6 weeks [9] . However, it has been experimentally observed that 3-weeks provide the same results regarding ureteral healing, which is an advantage, as reducing stenting duration decreases the adverse effects associated with double-J stents [45] . When lesions are diagnosed late, the placement of a double-J stent for 8-12 weeks is the first therapeutic option [34] .…”

Section: Treatment Of Perforations and Their Complicationsmentioning

confidence: 99%

Complications of Endourologic Procedures: A Review on Iatrogenic Ureteral Perforation

Cruz¹,

Morcillo²,

Folkersma³

et al. 2017

ARC Journal of Urology

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The aim of this study is to describe ureteral perforation as a complication of endourologic procedures; its incidence, risk factors, complications and treatment. Ureteral perforation is an injury that involves the entire thickness of the ureteral wall; whose incidence rate is less than 2%. It is related to the caliber of the equipment, the duration of the intervention, the surgeon's experience, the characteristics and location of the stones and the condition of the ureter prior to the intervention. Late diagnosis or inadequate management may lead to more serious complications such as urinoma, fever, and long-term stricture and obstructive uropathy. The treatment of this complication in the majority of cases consists in Double-Jstenting with a success rate over 80%; when this treatment fails, the following therapeutic options are Percutaneous Nephrostomy and reconstructive surgery.

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Evaluation of the duration of ureteral stenting following endopyelotomy: Animal study

Cited by 15 publications

References 24 publications

Usefulness of real‐time three‐dimensional ultrasonography in percutaneous nephrostomy: an animal study

Usefulness of real‐time three‐dimensional ultrasonography in percutaneous nephrostomy: an animal study

Ureteral Double-J Wire Stent Effectiveness after Endopyelotomy: An Animal Model Study

Complications of Endourologic Procedures: A Review on Iatrogenic Ureteral Perforation

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