Berent Allyson C
Department of Interventional Radiology and Endoscopy, Internal Medicine, The Animal Medical Center, 510 East 62nd Street, New York, NY 10065, USA.
Vet Clin North Am Small Anim Pract. 2016 Jul;46(4):677-89. doi: 10.1016/j.cvsm.2016.01.005. Epub 2016 Apr 5.
Choanal atresia is rare in small animal veterinary medicine, and most cases are misdiagnosed and are actually a nasopharyngeal stenosis (NPS), which is frustrating to treat because of the high recurrence rates encountered after surgical intervention. Minimally invasive treatment options like balloon dilation (BD), metallic stent placement (MS), or covered metallic stent (CMS) placement have been met with success but are associated with various complications that must be considered. The most common complication with BD alone is stenosis recurrence. The most common complications encountered with MS placement is tissue in-growth, chronic infections and the development of an oronasal fistula. The most common complications with a CMS is chronic infections and the development of an oronasal fistula, but stricture recurrence is avoided.
后鼻孔闭锁在小动物兽医学中较为罕见，大多数病例被误诊，实际上是鼻咽狭窄（NPS），由于手术干预后复发率高，治疗起来令人沮丧。诸如球囊扩张术（BD）、金属支架置入术（MS）或覆膜金属支架（CMS）置入术等微创治疗方法已取得成功，但也伴有各种必须考虑的并发症。单独使用BD最常见的并发症是狭窄复发。MS置入术最常见的并发症是组织向内生长、慢性感染和口鼻瘘的形成。CMS最常见的并发症是慢性感染和口鼻瘘的形成，但可避免狭窄复发。
