Publications by authors named "Carlos Augusto dos Santos Sousa"

This is the first reported case of Bertiella mucronata infection in a black-and-gold howler monkey (Alouatta caraya) in Brazil. The present study confirms the widespread of B. mucronata in South America and suggest that black-and-gold howler monkeys may serve as viable reservoirs for B.

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Article Synopsis
  • - Marmosets (Callithrix spp) are small monkeys used in research, but detailed information about their kidney anatomy and blood supply is limited, prompting this study to gather basic anatomical data for future research.
  • - The study involved dissecting 50 marmoset cadavers to analyze kidney size and positioning, finding that female marmosets had larger kidneys, and that the right kidney was typically positioned higher than the left in both sexes.
  • - Results showed a consistent correlation between the body length and kidney length, with kidney locations varying but generally aligning with patterns seen in other primates, indicating anatomical similarities across species.
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Breed traits seem to influence the dimensions of the cerebral ventricles in dogs. The ratios between the ventricles and the brain are crucial diagnostic criteria for suspected canine cognitive dysfunction (CCD). This study aimed to establish linear computed tomography (CT)-scan measurements of the cerebral ventricles in 55 Poodle dogs aged >7 years.

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Various animal models are used for research; however, non-human primates are well suited for biomedical research owing to their genetic homology with humans. The objective of this research was the anatomical characterization of red howler's kidneys in view of the scarcity of information in the literature. Protocols were approved by the Committee for Ethics in the Use of Animals at the Federal Rural University of Rio de Janeiro (number 018/2017).

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The Military Police of Rio de Janeiro state use dogs as a decisive tool for patrol and detection of drugs, weapons, and explosives. Complementary tests, such as echocardiography, are essential to maintain the integrity of these animals. This study aimed to evaluate the echocardiographic parameters of the working dogs belonging to the Military Police of Rio de Janeiro and compare them with the available data.

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Purpose: To update the gross and sonographic anatomy and propose landmarks to perform ultrasound-guided (US-guided) axillary brachial plexus block (BPB) in rabbits.

Methods: Forty New Zeeland's rabbit (NZR) cadavers were dissected and the nerves were trimmed, identified, measured, and photographed. Additionally, in twenty NZRs, sonographic images of brachial plexus (BP) were performed through a simple-resolution ultrasound device.

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Purpose: To assess pain in the immediate postoperative period in cats submitted into two different celiotomy techniques for ovariohysterectomy.

Methods: Fourteen healthy female cats up to three years old with a mean weight 2.75 kg, without breed specification, were used in this double blind experiment.

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Purpose: To determine the minimum volume of methylene blue (MB) to completely color the brachial plexus (BP) nerves, simulating an effective anesthetic block in cats.

Methods: Fifteen adult male cat cadavers were injected through subscapular approach with volumes of 2, 3, 4, 5 and 6 ml in both forelimbs, for a total of 30 brachial plexus blocks (BPB). After infusions, the specimens were carefully dissected preserving each nervous branch.

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