Banca de DEFESA: THAMARA COZZI GONÇALVES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : THAMARA COZZI GONÇALVES
DATE: 14/02/2023
TIME: 14:00
LOCAL: mini auditório Ispa
TITLE:

Morphology of the peritoneum of Tamandua tetradactyla and Bradypus variegatus and its implications for the surgical approach.

KEY WORDS:

anteater; sloth; Xenarthra; morphology, peritoneum.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

Tamandua tetradactyla and Bradypus variegatus are two species of wild mammals that belong to the Superorder Xenarthra and Order Pilosa and are widely found in Brazil. Due to the urbanization process, wild fauna approaches human populations, making these animals potential victims of injuries that sometimes require surgical interventions. At the abdominal level, these surgeries always include the approach to the peritoneum, which is a double-layered serous membrane that performs functions such as protection from external impacts, tissue resistance and production of intracavitary fluids. That said, the objective was to evaluate, describe and characterize the peritoneum of Tamandua tetradactyla and Bradypus variegatus, analyzing its macro and microscopic aspects and using this information as a subsidy for surgical approaches in these species. Four adult specimens of Tamandua tetradactyla, and three adult specimens of Bradypus variegatus were used and they were thawed in running water and dissected by means of an incision in the abdominal cavity, with the skin and musculature reflected, until the peritoneum was exposed. After that, suture patterns of the following types were performed: simple separated, Sultan separated (stitch in “X”) and continuous Reverdin, with non-absorbable synthetic mononylon thread, number 0 to attest to their occlusion. Then, fragments of this organ were collected for histological evaluation. Macroscopy of the Tamandua tetradactyla peritoneum revealed that it was thick, pink in color and distributed along the abdominal cavity, being connected to the rectus abdominis muscle and having a connection with the omentum. Macroscopy of Bradypus variegatus peritoneum indicated an organ of thin thickness, pinkish color and distributed along the abdominal cavity, being connected to the rectus abdominis muscle, lacking omentum. This time, the suture patterns in Tamandua tetradactyla were applied en bloc (individual) to occlude the peritoneum, while in Bradypus variegatus these same suture patterns were applied in mass (peritoneum-aponeurotic-muscular plane). Both were able to generate raffia from the abdominal cavity. The microscopy of Tamandua tetradactyla and Bradypus variegatus was similar, both being composed of a mesothelial layer of squamous cells and a dense connective tissue not modeled afterwards. There were particularities regarding the invagination of dense non-modeled connective tissue in the layer of skeletal striated muscle fibers present in the rectus abdominis muscle.

BANKING MEMBERS:
Interna - 1733442 - ANA RITA DE LIMA
Interna - 2313941 - ELANE GUERREIRO GIESE
Interna - 1661748 - ERIKA RENATA BRANCO
Externa ao Programa - 3494995 - ANDREA MAGALHAES BEZERRA
Externa à Instituição - ELLEN YASMIN EGUCHI MESQUITA - Unama