Large Experimental Fistula of the Right Dorsal Colon in Horses

Lopes, Marco A. F.; White, Nathaniel A.; Lima, Leonardo Rodrigues de; Costa, P.R.S.

doi:10.1016/j.jevs.2010.03.003

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…31,58 Conversely, the results of the present series indicate that, systemic administration of sedative-analgesics and flunixin may not provide sufficient peritoneal analgesia for extensive abdominopelvic exploration and intestinal manipulation during standing flank laparotomy. In the three most recent cases of the present series, intraperitoneal administration of lidocaine mixed with carboxymethylcellulose or lactated Ringer's appeared to safely provide good peritoneal analgesia for abdominopelvic exploration during standing flank laparotomy.…”

contrasting

confidence: 54%

“…The need for excellent peritoneal analgesia during standing flank laparotomy cannot be overemphasised. When minimal exploration of the peritoneal cavity is needed, horses tolerate standing flank laparotomy well when given flunixin and sedative‐analgesics and injected with local anaesthetic at the incision site 31,58 . Conversely, the results of the present series indicate that, systemic administration of sedative‐analgesics and flunixin may not provide sufficient peritoneal analgesia for extensive abdominopelvic exploration and intestinal manipulation during standing flank laparotomy.…”

Section: Discussionmentioning

confidence: 63%

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Standing flank laparotomy for colic: 37 cases

Lopes

Hardy

Farnsworth

et al. 2021

Equine Veterinary Journal

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Background: Standing flank laparotomy can be an alternative to ventral midline laparotomy in horses with colic. Standing flank laparotomy avoids general anaesthesia, provides excellent access to some regions of the abdominopelvic cavity and costs less than ventral midline laparotomy.Objective: To report a series of cases of peritoneal and intestinal diseases other than SC diseases managed with standing flank laparotomy. Study design: Retrospective case series.Methods: Records from equids with colic subjected to standing flank laparotomy at five hospitals (2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019)(2020) were reviewed. Descriptive data analysis was performed.Results: Thirty horses (sixteen survived to discharge), six ponies (four survived) and one donkey (euthanised) were subjected to standing flank laparotomy via the left flank (n = 31), right flank (n = 2) or both flanks (n = 4). The primary disease affected the peritoneum (0/5 survived), SI (5/9 survived) and caecum and/or LC (15/23 survived).Enterotomy was performed in four animals (all survived). Partial typhlectomy was performed in one horse (euthanised). Resection-anastomosis of the SI or LC was performed in three animals (one survived). Three animals had intraoperative complications that negatively affected the outcome: Two ponies had intolerance to abdominopelvic exploration; one mare had spontaneous exteriorisation of a long segment of the SI leading to a large tear in the mesentery. In seven cases, severe/extensive lesions found during standing flank laparotomy warranted immediate euthanasia. The survival rate was 54%. All owners were satisfied with the decision to perform standing flank laparotomy. Main limitations:The retrospective design, lack of a control group, small number of cases and lack of standardised protocols between hospitals. Conclusions:Although ventral midline laparotomy is the standard of care for horses with colic, standing flank laparotomy is a viable approach for some types of colic. Systemic administration of analgesics may not produce sufficient peritoneal analgesia, which can lead to intolerance to abdominopelvic exploration during standing flank laparotomy in horses with colic and may negatively affect the outcome.

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contrasting

confidence: 54%

Section: Discussionmentioning

confidence: 63%

Standing flank laparotomy for colic: 37 cases

Lopes

Hardy

Farnsworth

et al. 2021

Equine Veterinary Journal

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“…Bodyweights immediately before treatment were 439-595 kg (mean 497.96 kg) were used. The technique to create the right dorsal colon fistula has been described elsewhere (Lopes et al 2002a). Horses were maintained in stalls with free access to water, orchard grass hay and a salt block for at least a week before the experiment.…”

Section: Horsesmentioning

confidence: 99%

Treatments to promote colonic hydration: enteral fluid therapy versus intravenous fluid therapy and magnesium sulphate

Lopes

Walker

White

et al. 2002

Equine Veterinary Journal

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Summary Although large intestine impactions are commonly treated with i.v. fluids combined with the osmotic laxative MgSO4, enteral fluids are less expensive and also appear to be efficacious for impactions. Therefore, this study was conducted to compare the systemic and gastrointestinal effects of enteral fluids with the changes produced by i.v. fluids combined with MgSO4. Four horses with a fistula in the right dorsal colon alternately received both treatments in 2 periods one week apart. Sixty litres of fluids were administered continuously (10 l/h) through a venous catheter or a nasogastric tube. Magnesium sulphate (1 g/kg bwt) was administered via nasogastric tube before i.v. fluid therapy. Two horses had mild abdominal discomfort at the end of enteral fluid therapy. Pollakiuria, hypostenuria, increased bodyweight, increased faecal and ingesta hydration, and decreased PCV, plasma protein and plasma magnesium were produced by both treatments. Abdominal distention and more pronounced changes in bodyweight and ingesta hydration were seen with enteral fluids. Intravenous fluids plus MgSO4 produced hypocalcaemia and more pronounced changes in plasma protein. These results indicate that enteral fluid therapy is more effective in promoting ingesta hydration and produces less pronounced systemic effects than i.v. fluid therapy plus MgSO4.

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Large Experimental Fistula of the Right Dorsal Colon in Horses

Cited by 2 publications

References 12 publications

Standing flank laparotomy for colic: 37 cases

Standing flank laparotomy for colic: 37 cases

Treatments to promote colonic hydration: enteral fluid therapy versus intravenous fluid therapy and magnesium sulphate

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