Balloon dilation Leib MS JVIM 2001 547-552
1. Esophagitis diagnosed by granular hyperemic eroded or mucosal hemorrhage
2. fibrosis pink to grey color mucosal
3. Rigiflex microinvasive 6, 8,12,18mm
4. inflat balloon diameter 4mm larger than stricture
5. 1-1.5 min
6. 沒擴大到3mm就作第二次
7. 換到18-20mm除非傷害已經太大
8. adequate diameter: 10mm
9. 64% 跟麻醉有關
10. stricture diameter 5, 1-12mm length 1cm, 1-10cm length
11. some animal develop esophagitis away from primary stricture
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