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Surgical Treatment of Oesophagostomum spp. Nodular Infection in a Chimpanzee at the CIRMF Primatology Center, Gabon

Abstract : Oesophagostomosis is a zoonotic disease caused by nematodes of the genus Oesophagostomum in the intestinal walls of many species, including ruminants, pigs, humans, and nonhuman primates. Although great apes appear to tolerate the parasite in the wild, they can develop a clinical form that can lead to death in captivity and the natural environment. At the Primatology Centre of the International Centre for Medical Research in Franceville (CIRMF) in Gabon, we recorded 4 deaths of chimpanzees (Pan t. troglodytes) caused by Oesophagostomum spp. between 2015 and 2019. In each case, coprological analysis was positive for strongylid eggs and abdominal ultrasound revealed nodules about 4 cm in diameter on the intestinal and abdominal walls. Albendazole treatments administered by mouth in two doses of 400 mg six months apart resulted in the disappearance of the parasite in coprological samples but the chimpanzees still died. Autopsies carried out on all four chimpanzees revealed a rupture of the cysts and a discharge of pus into the abdomen in each case. We report surgical management involving the removal of Oesophagostomum spp. cysts from a chimpanzee following coprological analysis and abdominal ultrasound examination. Surgical exploration confirmed the fragility of the cystic walls, the rupture of which we avoided. This 5th new case of Oesophagostomum ssp. nodules recovered without complications following the operation and could rejoin his group. We suggest that surgical intervention should be considered in similar cases in captive primates, especially chimpanzees.
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https://hal.archives-ouvertes.fr/hal-03451614
Contributor : Dominique Pontier Connect in order to contact the contributor
Submitted on : Friday, November 26, 2021 - 3:22:53 PM
Last modification on : Friday, April 1, 2022 - 3:46:47 AM
Long-term archiving on: : Sunday, February 27, 2022 - 7:36:56 PM

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Barthélémy Ngoubangoye, Larson Boundenga, Serge-Ely Dibakou, Thierry-Audrey Tsoumbou, Cyr Moussadji Kinga, et al.. Surgical Treatment of Oesophagostomum spp. Nodular Infection in a Chimpanzee at the CIRMF Primatology Center, Gabon. Case Reports in Veterinary Medicine, 2021, 2021, ⟨10.1155/2021/6617416⟩. ⟨hal-03451614⟩

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