Evaluation of ameroid ring constrictors for the management of single extrahepatic portosystemic shunts in cats: 23 cases (1996-2001).

摘要: Objective To document the signalment; history; clinical signs; clinicopathologic, diagnostic imaging, and surgical findings; perioperative complications; long-term results of ameroid ring constrictor (ARC) placement on single extrahepatic portosystemic shunts (PSS) in cats. Design Retrospective study. Animals 23 cats treated with an ARC a PSS. Procedure An was placed surgically around Portal pressure measured prior to placement, complete temporary PSS occlusion, after placement. Cats were scheduled for recheck transcolonic portal scintigraphy 8 10 weeks surgery. Follow-up information obtained by telephone interview owners. Results successfully 22 Intraoperative complications, consisting hemorrhage, occurred 2 Mean (+/- SD) (n = 15) 6.7+/-2.9 mm Hg before manipulation, 18.6+/-7.7 6.9+/-2.7 Postoperative complications developed 77% (17 22) included central blindness, hyperthermia, frantic behavior, generalized motor seizures. Perioperative mortality rate 4.3% (1 23). Persistent shunting identified 14 Overall, 75% (15 20) had excellent outcome. Conclusions relevance Placement resulted low complication rates, but most did have substantial postoperative complications. common, although many persistent clinically normal.