Intestinal dysmotility following equine colic surgery contributes negatively to financial and prognostic outcomes. This study assessed duodenal contractility as a predictor of post‐operative reflux and survival to discharge in horses following colic surgery. Duodenal contractility was assessed using daily transabdominal ultrasound examinations in 49 horses for up to 7 days (Day 1 scan performed between 6 and 36 h post‐surgery and sequential daily scans performed between 08.00 and 20.00 h) following colic surgery (September 2014–April 2017). The duodenum was visualised ventral to the right kidney, and duodenal contractions were measured over 2 min. The signalment of each horse and surgical findings were noted. Outcomes were defined as horses that refluxed (>5 L/24 h beyond 24 h) or did not reflux post‐operatively and those that were survivors or were nonsurvivors. A significant difference in duodenal contractions at Day 1 post‐operatively was identified between horses that refluxed (n = 8) and those who did not reflux (n = 32; P = 0.013) but not between those who were nonsurvivors (n = 7) and survivors (n = 32; P = 0.113). Horses in the reflux group had reduced duodenal contractility comparatively. There were no significant differences in duodenal contractions in the sequential days after the Day 1 scan or between duodenal contractions and surgical findings. A significant association was identified between duodenal contractions and survivors (P = 0.039; odds ratio 1.88). The main study limitations were the single centre design with consequent small numbers of horses included. The study did not account for other factors that may contribute to alterations in motility such as drug administration or stages of re‐feeding. This preliminary study indicates that Day 1 (6–36 h post‐operatively) duodenal contractions may predict reflux (>5 L/24 h beyond 24 h) and that increased duodenal contractions are associated with survival. However, there was no clear distinction or cut‐off between groups. Future studies with greater numbers of horses yielding better statistical power are required.

中文翻译：

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马十二指肠蠕动，通过超声检查评估，作为绞痛手术后反流和生存的预测指标

马绞痛手术后肠动力异常对财务和预后产生负面影响。这项研究评估了十二指肠收缩性，作为预测绞痛手术后马匹术后反流和存活的指标。在绞痛手术后（2014年9月至2017年4月），每天对49匹马进行长达7天（手术后6到36小时之间进行第1天扫描，以及在08.00到20.00 h之间连续进行每日扫描），评估每日十二指肠的收缩力。 ）。将十二指肠可视化到右肾腹侧，并在2分钟内测量十二指肠收缩。记录每匹马的信号和手术结果。结果定义为回流的马（> 术后24 h超过5 L / 24 h）或术后没有反流的患者以及幸存者或非幸存者。术后第1天发现十二指肠收缩有显着差异（n = 8）和未反流的马（n = 32； P = 0.013），但非幸存者（n = 7）则没有。和幸存者（n = 32； P = 0.113）。反流组的马十二指肠收缩力相对降低。在第1天扫描后的连续几天或十二指肠收缩与手术结果之间，十二指肠收缩没有显着差异。十二指肠收缩和幸存者之间存在显着相关性（P = 0.039；优势比1.88）。研究的主要局限性是单一中心设计，因此只包括少量的马匹。该研究未考虑可能导致运动力改变的其他因素，例如药物管理或再喂养阶段。这项初步研究表明，第1天（术后6-36小时）十二指肠收缩可预测反流（24小时后> 5 L / 24 h），而十二指肠收缩的增加与生存有关。但是，各组之间没有明显的区别或界限。需要更多的马匹产生更好的统计能力的未来研究。组之间没有明显的区别或界限。需要更多的马匹产生更好的统计能力的未来研究。组之间没有明显的区别或界限。需要更多的马匹产生更好的统计能力的未来研究。