{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T10:58:26Z","timestamp":1793444306348,"version":"4.5.0"},"reference-count":22,"publisher":"American Veterinary Medical Association (AVMA)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2018,3,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    <jats:bold>CASE DESCRIPTION<\/jats:bold>\n                    4 cats were examined because of ureteral obstruction.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>CLINICAL FINDINGS<\/jats:bold>\n                    Clinical and clinicopathologic abnormalities were nonspecific and included anorexia, lethargy, weight loss, anemia, leukocytosis, neutrophilia, lymphopenia, and azotemia. A diagnosis of pyonephrosis was made in all cats. The presence of bacteriuria was confirmed by means of urinalysis in 2 cats, bacterial culture of a urine sample obtained by means of preoperative cystocentesis in 2 cats, and bacterial culture of samples obtained from the renal pelvis intraoperatively in 3 cats. Ureteral obstruction was caused by a urolith in 3 cats; ureteral stricture associated with a circumcaval ureter was identified in 1 cat.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>TREATMENT AND OUTCOME<\/jats:bold>\n                    All 4 cats underwent renal pelvis lavage and placement of a subcutaneous ureteral bypass (SUB) device for treatment of obstructive pyonephrosis. Postoperatively, the cystostomy tube became occluded with purulent material in 1 cat, requiring exchange. The procedure was successful in relieving the obstruction and pyonephrosis in all cats. Three of 4 cats had documented resolution of urinary tract infection. One cat had persistent bacteriuria without clinical signs 1 month after SUB device placement.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>CLINICAL RELEVANCE<\/jats:bold>\n                    Results of this small series suggested that renal pelvis lavage with placement of an SUB device may be a treatment option for cats with obstructive pyonephrosis.\n                  <\/jats:p>","DOI":"10.2460\/javma.252.6.744","type":"journal-article","created":{"date-parts":[[2018,3,5]],"date-time":"2018-03-05T10:52:04Z","timestamp":1520247124000},"page":"744-753","source":"Crossref","is-referenced-by-count":25,"title":["Treatment of pyonephrosis with a subcutaneous ureteral bypass device in four cats"],"prefix":"10.2460","volume":"252","author":[{"given":"Megan","family":"Cray","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allyson 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