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The purpose of this study was to find out whether the concentration of bile acids in the rumen of healthy cows differs from that of cows with a reduced gastrointestinal passage. The investigations were performed on 277 heifers and cows of the Swiss Braunvieh, Simmental and Swiss Holstein breeds. Forty of these had traumatic reticuloperitonitis, 30 had right or left abomasal displacement, 14 had an ileus of the duodenum, 36 had an ileus of the jejunum and 54 had a caecal dilatation. The other 103 animals had disorders which did not affect the digestive system and were used as controls. The mean (+/- se) bile acid concentration in the rumen fluid of the control animals was 1.0 +/- 0.30 mumol/litre. The bile acid concentrations in the rumen fluid of the cows with a duodenal or jejunal ileus were significantly higher than those of the other groups, demonstrating that bile acids may reflux from the duodenum into the rumen of cows with an ileus in the small intestine.
Vet Rec 1989 Apr 08
PMID:Reflux of bile acids from the duodenum into the rumen of cows with a reduced intestinal passage. 271 38

Dilatation and torsion of the caecum is usually an acute illness with signs of ileus and this paper presents the clinical findings from 111 heifers and cows with the condition. On admission 61 per cent of the animals had been ill for less than 24 hours; the general condition was disturbed in 58 per cent of the animals, 39 per cent showed signs of colic; the rectal temperature was abnormal in 55 per cent, the heart rate in 40 per cent and the respiration rate in 52 per cent of the animals; rumen motility was reduced or absent in 85 per cent. One or more tests for foreign bodies were positive in 58 per cent, and swinging auscultation and percussion auscultation on the right side, either alone or in combination, were positive in 83 per cent of the animals. On rectal examination it was possible to palpate a pathologically distended, displaced or twisted caecum in 95 per cent of the animals. In 87 per cent defecation was reduced or absent. The most reliable diagnostic investigations were rectal examination and swinging and percussion auscultation on the right side.
Vet Rec 1989 Sep 02
PMID:Clinical findings in cattle with dilatation and torsion of the caecum. 280 Feb 57

The small intestine of 35 heifers and cows with an ileus of the duodenum, jejunum or ileum was examined ultrasonographically. After a clinical examination, the animals were examined from the right flank and thorax with a 3.5 MHz linear transducer, and the findings were verified by a right flank laparotomy or post mortem. Dilated loops of small intestine with a diameter of more than 3.5 cm were visible in at least one location in all the animals; they were seen predominantly in cross-section or longitudinally. The number of loops of dilated intestine visible from the flank or intercostal spaces was markedly influenced by the site of the ileus. In animals with an ileus of the duodenum, only one intestinal loop was usually visible from the flank or from the 12th, 11th or 10th intercostal spaces. In contrast, more than five dilated loops of intestine were usually visible in animals with an ileus of the jejunum or ileum. The largest diameter of intestine measured from the 12th intercostal space was between 6.5 and 9.9 cm in animals with an ileus of the duodenum, between 3.5 and 9.8 cm in animals with an ileus of the jejunum, and between 4.4 and 5.5 cm in animals with an ileus of the ileum. In the majority of the cows, the contents of the intestines were predominantly echogenic, but in the others they were anechoic. The cause of the ileus could be identified by ultrasonography in only a few cases.(ABSTRACT TRUNCATED AT 250 WORDS)
Vet Rec 1995 Aug 26
PMID:Ultrasonographic examination of the small intestine of cows with ileus of the duodenum, jejunum or ileum. 750 71

The omasums of 30 healthy cows and 55 cows with various gastrointestinal disorders (10 with left displacement and eight with right displacement of the abomasum, 10 with abomasal volvulus, 10 with traumatic reticuloperitonitis, nine with ileus of the small intestines and eight with reticulo-omasal stenosis) were examined ultrasonographically on the right side of the body with a 3.5 MHz linear transducer. The dorsal and ventral margins of the omasum and its size in the fifth to 11th intercostal spaces were determined. Generally, the ultrasonographic appearance of the omasum did not differ between the healthy and abnormal cows. The omasum appeared as a semicircle, and the omasal wall closest to the transducer was visible as a thick echogenic line. In a few of the abnormal cows, the omasal laminae were visible and the omasum appeared to have motility. In the cows with left and right displacement of the abomasum and abomasal volvulus, the dorsal margin of the omasum was significantly further from the dorsal midline in some intercostal spaces than in the healthy cows. In the cows with left displacement of the abomasum, the ventral margin of the omasum was significantly further from the dorsal midline in the 7th intercostal space than in the healthy cows. In the cows with reticulo-omasal stenosis, traumatic reticuloperitonitis and ileus of the small intestine, the ventral margin of the omasum was significantly closer to the dorsal midline in some intercostal spaces than in the healthy cows. The mean (sd) size of the omasum in the healthy cows varied from 16.3 (1.5) cm to 56.9 (10.0) cm, depending on the intercostal space, and the omasum was significantly smaller in some intercostal spaces in the cows with reticulo-omasal stenosis, right displacement of the omasum, abomasal volvulus and ileus of the small intestine.
Vet Rec 2007 Jun 23
PMID:Ultrasonography of the omasum in cows with various gastrointestinal diseases. 1758 90

Four cases in cattle of omental herniation through an acquired omental rent are described. Clinical signs were indistinguishable from other causes of mechanical ileus and exploratory laparotomy was necessary to establish a diagnosis. In all cases a variably sized portion of jejunal loops was obstructed in an omental rent in the deep layer of the greater omentum. In two cases simple reduction was possible, and in one case incision of the hernial ring was necessary before reduction could be performed. Resection was necessary only in a calf, in which the incarceration was complicated by severe abomasal distension and local peritonitis. In all four cases the omental rent was closed by a serosa-serosa suture. Three cases made an uneventful recovery and returned to normal production, but one of these animals died three months postoperatively from an unknown cause. The calf was euthanased two days postoperatively because of persistent ileus.
Vet Rec 2009 Dec 12
PMID:Four cases of omental herniation in cattle. 2000 45

Cows with haemorrhagic bowel syndrome were examined by ultrasonography. A 5.0 MHz linear transducer was used to scan the right side of 63 standing, non-sedated cows. The small intestine was found to be dilated and had a diameter of 4.3 to 12.0 cm (mean [sd] 6.76 [1.78] cm), and there was markedly reduced or absent small intestinal motility in all the cows. In 22 (34.9 per cent) cows, empty poststenotic segments of small intestine were seen in addition to empty prestenotic intestine. In 12 (19 per cent) cows, the intestinal lumen contained localised hyperechoic material consistent with blood clots. Fluid with or without fibrin was seen between intestinal loops in 39 (61.9 per cent) cows. Accumulation of ingesta in the abomasum and sometimes in the omasum and rumen was seen in 14 (22.2 per cent) cows. Ultrasonography was considered to be a useful tool for the diagnosis of ileus. However, this imaging modality could be used to make a definitive diagnosis of haemorrhagic bowel syndrome only when a blood clot was seen in the intestinal lumen.
Vet Rec 2010 Jan 16
PMID:Ultrasonographic findings in 63 cows with haemorrhagic bowel syndrome. 2008 Nov 79

In order to assess postoperative outcome in horses undergoing end-to-end anastomosis of the small intestine, performed using a one-layer technique, 15 horses that underwent exploratory coeliotomy, resection of the small intestine and end-to-end anastomosis using a continuous Lembert pattern were studied. Information on the age, breed, sex, diagnosis, treatment, complications and outcome of each case were obtained from medical records. Follow-up information was obtained via telephone conversations with clients and trainers. Five of the horses had short-term postoperative complications: one had postoperative ileus (POI), colic and peritonitis, one had POI and colic, two had POI only and one had diarrhoea only. A second exploratory coeliotomy was recommended in two of the 15 horses (13 per cent). The short-term survival rate, defined as survival up to the time of discharge from the hospital, was 93.3 per cent (14 of 15 horses). The long-term survival rate, defined as survival for at least 12 months after the surgery, was 84.6 per cent (11 of 13 horses followed up).
Vet Rec 2010 Oct 23
PMID:Clinical assessment and outcome of a single-layer technique for anastomosis of the small intestine in horses. 2125 65