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Peer-reviewed veterinary case report

Treatment options for esophageal spirocercosis in dogs compared

By Mylonakis, Mathios E et al.·Published in Veterinary parasitology·2004·Clinic of Companion Animal Medicine·View original on PubMed

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Original publication title: A comparison between ethanol-induced chemical ablation and ivermectin plus prednizolone in the treatment of symptomatic esophageal spirocercosis in the dog: a prospective study on 14 natural cases.

Species:
dog

Plain-English summary

A group of 14 dogs with esophageal spirocercosis, which caused difficulty swallowing, were treated with either ethanol injections or a combination of ivermectin and prednisolone. The dogs receiving ivermectin and prednisolone showed better results, with most experiencing a complete recovery and no signs of the parasites in their feces after treatment. In contrast, while some dogs treated with ethanol improved, not all showed complete regression of the nodules, and one dog had a serious complication. Overall, the ivermectin and prednisolone treatment was more effective for resolving symptoms and eliminating the parasites.

People also search for: dog swallowing problems treatment · esophageal spirocercosis in dogs · ivermectin for dog parasites · prednisolone for dog swallowing issues

Abstract

This study included a total of 14 dogs with spontaneous esophageal spirocercosis. Historical and clinical evidence of esophageal dysphagia, detection of parasitic ova in fecal samples and endoscopic documentation of esophageal nodules were the inclusion criteria. The animals were randomly assigned into two groups: group A (n = 6 ) dogs received two intranodular injections of absolute ethanol (96%) via a through-the-endoscope injector, at weekly intervals; group B (n = 8) dogs were put on ivermectin (600 microg/kg BW, subcutaneously, twice, 14 days apart) and oral prednisolone (0.5mg/kg BW, every 12h, for a total of 3 weeks, tapering the dose accordingly). Clinical and fecal examination as well as endoscopy, were performed on admission and at 20, 60 and 180 days from the beginning of the treatment. One group A dog responded poorly and died of pyothorax during the trial and another developed esophagitis due to accidental intraluminal ethanol infusion, only to experience an uneventful recovery. At different times during the 6-month follow-up period, there was a complete disappearance of the clinical signs in 4/6 group A dogs. However, full nodular regression was achieved only in one dog, and parasitic ova were still found in the feces of 4/6 dogs. At the same period of time in five group B dogs still available for evaluation, resolution of the clinical signs and complete nodular regression were seen in four and five animals, respectively, while negative fecal results were obtained in all dogs (8/8) of the same group 2 months from the beginning of the treatment. No significant difference was found between the groups, regarding the resolution of clinical signs, though group B dogs demonstrated a significantly higher rate of regression of esophageal nodules as well as negative fecal results, compared to group A dogs. The combination of ivermectin and prednizolone may be considered an effective treatment in the symptomatic and evidently asymptomatic esophageal spirocercosis of the dog.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15019150/