BACKGROUND Abomasitis is a syndrome affecting young milk-fed calves. The current veterinary literature describes mainly its necropsy findings. OBJECTIVES To describe the clinical presentation, complementary tests, treatments, and case-fatality rate of calves with a clinical diagnosis of abomasitis and to identify potential factors associated with outcome. METHODS Observational retrospective cohort study (2006-2016). Review of the medical records of calves <3 months of age presented with abdominal and abomasal distension for <7 days that were clinically diagnosed with abomasitis at the Faculty of Veterinary Medicine of the Université de Montréal. A follow-up examination was conducted by telephone interview. ANIMALS Twenty-three calves clinically diagnosed with abomasitis. RESULTS Median age of presentation was 3 days (range, 0-62 days). The typical duration of the clinical course was <24 hours (15/23). On admission, the 2 most common clinical signs were anorexia (13/14) and positive succussion (13/14). Hyper-l-lactatemia (15/16) and increased γ-glutamyl-transferase activity (13/14) were the most common laboratory abnormalities. Hypoproteinemia (19/22) and a left shift (15/18) of the neutrophils also were observed. The short-term case-fatality rate was 52% (12/23). The clinical diagnosis was confirmed on all necropsied calves. Clostridium spp. and Escherichia coli were the most frequently isolated bacteria. Based on univariate statistical analysis, the surviving calves were significantly (P < .05) less hypothermic, less acidemic, less hyper-l-lactatemic, and had lower serum creatinine concentrations on admission than did the deceased calves. CONCLUSIONS AND CLINICAL IMPORTANCE In our study, abomasitis was associated with a guarded prognosis.

中文翻译：

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犊牛腹膜炎：23例回顾性队列研究（2006-2016年）。

背景技术气管炎是一种影响年幼的奶牛犊的综合症。当前的兽医文献主要描述了其尸检结果。目的描述小牛的临床表现，补充试验，治疗方法以及对牛气肿的临床诊断的病死率，并确定与预后相关的潜在因素。方法回顾性队列研究（2006-2016年）。蒙特利尔大学兽医学院临床上诊断为患有乳腺炎的<3个月大的犊牛的腹部和腹部肿胀<7天的病历回顾。通过电话采访进行了随访检查。动物23头犊牛在临床上被诊断出患有脂肪瘤。结果出现的中位年龄为3天（范围为0-62天）。临床过程的典型持续时间少于24小时（15/23）。入院时，最常见的2种临床体征是厌食（13/14）和正面震荡（13/14）。高l-乳酸血症（15/16）和γ-谷氨酰转移酶活性增加（13/14）是最常见的实验室异常。还观察到中性粒细胞的低蛋白血症（19/22）和左移（15/18）。短期病死率是52％（12/23）。在所有尸检犊牛均已确认临床诊断。梭状芽胞杆菌 大肠埃希菌和大肠杆菌是最常见的细菌。根据单变量统计分析，存活的犊牛入院时的低温（P <.05）显着（P <.05）少，酸血症少，高l-乳酸少，且入院时的血清肌酐浓度更低。