{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T16:37:31Z","timestamp":1770223051803,"version":"3.49.0"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2019,10,8]],"date-time":"2019-10-08T00:00:00Z","timestamp":1570492800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Small Animal Practice"],"published-print":{"date-parts":[[2020,1]]},"abstract":"<jats:sec><jats:title>Objectives<\/jats:title><jats:p>To describe pre\u2010 and post\u2010operative ultrasonographic and fluoroscopic findings, including any abnormalities, in cats treated for ureteral obstruction with a subcutaneous ureteral bypass system.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Retrospective review of imaging findings in cats with ureteral obstruction that had surgery to place the first version of the bypass system and at least one follow\u2010up ultrasound or fluoroscopic study. Pre\u2010 and post\u2010operative renal pelvic diameter on ultrasound, fluoroscopic appearance of the bypass system and any related abnormality were recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Eighty\u2010one cats were included (47 unilateral, 34 bilateral bypass systems). Median preoperative renal pelvic diameter was 9\u2009mm (range 3 to 28\u2009mm) and median renal pelvic diameter at the first postoperative ultrasound was 3\u2009mm (range 2 to 23\u2009mm). The median number of postoperative imaging studies was two (range 1 to 8) and the median follow\u2010up period after surgery was 205\u2009days (range 1 to 1378\u2009days). Bypass system abnormalities were identified postoperatively in 43 (53%) cats, including nephrostomy or cystostomy catheter blockage due to an undetermined cause or kinking of the catheter, nephrostomy or cystostomy catheter leakage, non\u2010obstructive kinking of the catheter and loose nephrostomy pig\u2010tail loop. Many abnormalities required repeat surgery, but others were managed conservatively. Fifty\u2010four percent of obstructed ureters became patent after bypass placement, although the majority remained slightly dilated or had irregular margins compatible with chronic inflammation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical Significance<\/jats:title><jats:p>Bypass abnormalities, mainly tube blockage, occurred frequently in cats treated for ureteral obstruction. Ultrasonography and fluoroscopy were useful for postoperative examination, including documenting renewed ureteral patency and investigation of suspected abnormalities.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jsap.13071","type":"journal-article","created":{"date-parts":[[2019,10,8]],"date-time":"2019-10-08T09:06:46Z","timestamp":1570525606000},"page":"24-31","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Diagnostic imaging observations in cats treated with the subcutaneous ureteral bypass system"],"prefix":"10.1111","volume":"61","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3513-9112","authenticated-orcid":false,"given":"H.","family":"Dirrig","sequence":"first","affiliation":[{"name":"Department of Clinical Sciences and Services The Royal Veterinary College  Hertfordshire AL9 7TA UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6952-8231","authenticated-orcid":false,"given":"C. R.","family":"Lamb","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences and Services The Royal Veterinary College  Hertfordshire AL9 7TA UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N.","family":"Kulendra","sequence":"additional","affiliation":[{"name":"North Downs Specialist Referrals  Bletchingley RH1 4QP UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Z.","family":"Halfacree","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences and Services The Royal Veterinary College  Hertfordshire AL9 7TA UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,10,8]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/1098612X13516572"},{"key":"e_1_2_5_3_1","volume-title":"The SUB: a surgical guide","author":"Berent A.","year":"2015"},{"key":"e_1_2_5_4_1","volume-title":"The SUB 2.0: A Surgical Guide","author":"Berent A.","year":"2018"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.253.10.1309"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.MAT.0000065467.87011.3B"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1740-8261.2010.01729.x"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.251.4.429"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1177\/1098612X17732900"},{"key":"e_1_2_5_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1574-695X.2010.00665.x"},{"key":"e_1_2_5_11_1","doi-asserted-by":"publisher","DOI":"10.1177\/1098612X13489055"},{"key":"e_1_2_5_12_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.247.8.924"},{"key":"e_1_2_5_13_1","doi-asserted-by":"publisher","DOI":"10.3747\/pdi.2012.00045"},{"key":"e_1_2_5_14_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.2005.226.932"},{"key":"e_1_2_5_15_1","doi-asserted-by":"publisher","DOI":"10.1177\/1098612X17736657"},{"key":"e_1_2_5_16_1","doi-asserted-by":"publisher","DOI":"10.1177\/1098612X16670572"},{"key":"e_1_2_5_17_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.2000.217.1862"},{"key":"e_1_2_5_18_1","first-page":"1","article-title":"Renal pelvic and ureteral ultrasonographic characteristics of cats with chronic kidney disease in comparison with normal cats, and cats with pyelonephritis or ureteral obstruction","volume":"18","author":"Quimby J. 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