11th Congress of the Andalusian Society of Organ and Tissue Transplantation
Kidney transplantation
Development of Ureteral Stenosis/Obstruction in Kidney Transplant

https://doi.org/10.1016/j.transproceed.2019.11.047Get rights and content

Abstract

This retrospective study describes the incidence and prevalence of ureteral stenosis/obstruction (US/O) in a cohort of 334 renal transplants recipients in our center over the last 5 years and evaluates the risk factors that may influence the occurrence of US/O.

The parameters studied included the following: history of prostate disease, smoking, urinary tract infection, renal lithiasis, ureterovesical reflux, presence and level of polar artery, type of ureterovesical anastomosis, delayed graft function, double J catheter, lymphocele, urinoma, acute rejection, prolonged catheterization, post-transplant infravesical obstruction and BK virus infection, age of the donor and recipient, and months on dialysis. Also evaluated were the nadir creatinine and instances of cold ischemia, asystole, reanastomosis, and double J catheter removal.

The average incidence of US/O was 7.6% and was significantly correlated with factors of alteration of the uretero-bladder dynamics without finding a relation to vascular factors.

Section snippets

Patients and Methods

This retrospective observational study evaluated 334 kidney transplant patients between 2014 and 2018. Data were collected from the clinic history and registration of donor, recipient, type of donation, and renal peritransplant data. The variables collected are as follows.

The qualitative variables of the study include history of prostate disease, smoking, urinary tract infection, renal lithiasis, ureterovesical reflux (UR), presence of polar artery, level of polar artery, type of ureterovesical

Results

The mean age of recipients was 54.54 ± 12.48 years, and mean body mass index was 26.8 1 ± 4.59 kg/m2. Of the patients, 29.6% were women and 70.4% were men, 52.6% were smokers, and 21.1% had diabetes mellitus. The most prevalent etiology of chronic kidney disease was the glomerular disease in 23.2% of them. The mean age of donors was 51.65 ± 14.2 years. Donations came from alive donors in 5.7% and from deceased donors in 94.3% of cases, of these 63.4% were from encephalic deaths and 36.6% from

Discussion

US/O etiology is not well defined. The incidence of this pathology presents a variable range in several studies of surgical complications in renal transplantation. A few studies describe this entity and its possible causes [2,5]. Factors that influence US/O etiology include donor characteristics, donation type, surgery related, and post-transplantation evolution. Two retrospective studies focus on different influential factors of US/O. First, Karam et al [4] studied 1787 kidney transplant

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