Thomas H L, Zaruby J F, Smith C L, Livesey M A
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Ontario.
Can Vet J. 1998 Dec;39(12):764-8.
Castration of horses is considered a common and routine surgical procedure, but the potential for complications is high. By far the most serious of these is eventration. The objectives of this study were to determine the long-term survival of horses undergoing surgical treatment of indirect (1) inguinal eventration of the small intestine following castration, and to identify prognostic indicators for survival. The case records of 18 horses undergoing surgical treatment of postcastration eventration (PCE) between 1985 and 1995 were reviewed. Follow-up information was obtained by telephone interviews 2 to 13 y postoperatively. A Cox proportional hazard regression model was fitted to determine which clinical features were of significant influence to survival. Clinical features with a significant negative influence on survival were an inguinal surgical approach for correction, an increased length of prolapsed bowel, and performance of bowel resection and anastomosis. Significant postoperative complications developed in 89% of cases; 44% of cases in the "inguinal" surgical approach group developed peritonitis, compared with 10% in the "midline" approach group. Of all horses in this study, 72% were discharged from the hospital; however, only 40% of horses in the inguinal approach group were discharged. The long term survival rate (> 1 y) for all horses in this study was 44%, with a median survival time of 3-1/2 mo.
马的去势手术被认为是一种常见的常规外科手术，但出现并发症的可能性很高。其中最严重的当属肠脱出。本研究的目的是确定接受阉割后小肠间接性腹股沟肠脱出手术治疗的马的长期存活率，并确定存活的预后指标。回顾了1985年至1995年间18匹接受去势后肠脱出（PCE）手术治疗的马的病例记录。通过术后2至13年的电话访谈获取随访信息。采用Cox比例风险回归模型来确定哪些临床特征对存活有显著影响。对存活有显著负面影响的临床特征包括腹股沟手术矫正方法、脱垂肠管长度增加以及肠切除吻合术。89%的病例出现了严重的术后并发症；“腹股沟”手术入路组44%的病例发生了腹膜炎，而“中线”入路组为10%。本研究中所有马的72%出院；然而，腹股沟入路组只有40%的马出院。本研究中所有马的长期存活率（>1年）为44%，中位存活时间为3.5个月。
