Determining the optimal time of gastric emptying in cats using dry or wet food

Background: Pulmonary aspiration of gastric content can result in intraoperative and postoperative complications, such as regurgitation, gastro-esophageal reflux and esophagitis. There are variations among authors about the ideal period of solid and liquid fasting. Determination of the appropriate amount of food abstinence in surgical patients is important, because of the metabolic disorders that interfere in response to anesthetic protocol or surgical intervention. Thereby, this research aimed to evaluate the appropriate period of fasting for elective anesthesia and surgical procedures in cats, by analysis of gastric emptying time based on the daily energy requirement. Materials, Methods & Results: Seven cats of mixed breed, health and with an average weight of 2.857 ± 0.3780 were evaluated by gastroscopy for the presence of food and obtaining tissue samples. To evaluate the gastric emptying time, dry and moist food were offered at two different times, 8 h and 4 h before each evaluation, with an interval of seven days between each food treatment (dry and moist). There was no significant difference in all biochemical parameters evaluated (cholesterol, glucose, and lactate) in both fasting times and food types (P > 0.05). All animals underwent gastric biopsy for histological evaluation and urease test, to discard morphological changes. After 4 h it was observed dry food [...]

Determining the optimal time of gastric emptying in cats using dry or wet food

Background: Pulmonary aspiration of gastric content can result in intraoperative and postoperative complications, such as regurgitation, gastro-esophageal reflux and esophagitis. There are variations among authors about the ideal period of solid and liquid fasting. Determination of the appropriate amount of food abstinence in surgical patients is important, because of the metabolic disorders that interfere in response to anesthetic protocol or surgical intervention. Thereby, this research aimed to evaluate the appropriate period of fasting for elective anesthesia and surgical procedures in cats, by analysis of gastric emptying time based on the daily energy requirement. Materials, Methods & Results: Seven cats of mixed breed, health and with an average weight of 2.857 ± 0.3780 were evaluated by gastroscopy for the presence of food and obtaining tissue samples. To evaluate the gastric emptying time, dry and moist food were offered at two different times, 8 h and 4 h before each evaluation, with an interval of seven days between each food treatment (dry and moist). There was no significant difference in all biochemical parameters evaluated (cholesterol, glucose, and lactate) in both fasting times and food types (P > 0.05). All animals underwent gastric biopsy for histological evaluation and urease test, to discard morphological changes. After 4 h it was observed dry food [...](AU)

Thoracic and abdominal wall reconstruction with polypropylene mesh after high grade infiltrative fibrosarcoma resection in a dog

Background: Soft tissue sarcomas are a group of invasive malignant tumors formed by neoplastic mesenchymal cells. In most cases, the treatment require surgical resection. When sarcoma characteristics disqualify conventional tumor excision, polypropylene mesh can be used for abdominal or chest wall reconstruction. This paper aims to describe the clinical, computed tomography features, histopathlogical and immunohistochemical aspects of a chest wall fibrosarcoma, as well as to describe the tumor excision technique combined with resection of multiple ribs, diaphragm advancement and reconstruction of thoracic and abdominal wall with a synthetic polypropylene mesh. Case: An 11-year-old male Boxer was presented with a progressive growth tumor in the left paralumbar area. The invasive tumor measuring 15 cm in diameter, was firm epidermodermal coverage and was adherent to the subcutaneous tissue, having a smooth and non-ulcerative skin surface. Ultrasound of the mass consisted of a heterogeneous structure comprising paralumbar region, invading abdomen and left thoracic wall. Thoracic radiography showed no signs of nodular interstitial pulmonary pattern compatible with metastasis. The dog was submitted to a CT examination of thoracolumbar region, which demonstrated the presence of the circumscribed mass, measuring approximately 17 cm in diameter in the left paralumbar region with...

Thoracic and abdominal wall reconstruction with polypropylene mesh after high grade infiltrative fibrosarcoma resection in a dog

Background: Soft tissue sarcomas are a group of invasive malignant tumors formed by neoplastic mesenchymal cells. In most cases, the treatment require surgical resection. When sarcoma characteristics disqualify conventional tumor excision, polypropylene mesh can be used for abdominal or chest wall reconstruction. This paper aims to describe the clinical, computed tomography features, histopathlogical and immunohistochemical aspects of a chest wall fibrosarcoma, as well as to describe the tumor excision technique combined with resection of multiple ribs, diaphragm advancement and reconstruction of thoracic and abdominal wall with a synthetic polypropylene mesh. Case: An 11-year-old male Boxer was presented with a progressive growth tumor in the left paralumbar area. The invasive tumor measuring 15 cm in diameter, was firm epidermodermal coverage and was adherent to the subcutaneous tissue, having a smooth and non-ulcerative skin surface. Ultrasound of the mass consisted of a heterogeneous structure comprising paralumbar region, invading abdomen and left thoracic wall. Thoracic radiography showed no signs of nodular interstitial pulmonary pattern compatible with metastasis. The dog was submitted to a CT examination of thoracolumbar region, which demonstrated the presence of the circumscribed mass, measuring approximately 17 cm in diameter in the left paralumbar region with...(AU)

Retalho padrão axial de ilíaca circunflexa profunda para tratamento de hemangiopericitoma em cão / Axial pattern flap of deep iliac circumflex treatment of hemangiopericytoma in dog

Hemangiopericitoma canino é uma neoplasia de origem mesenquimal comum que afeta tecidos moles.Frequentemente atinge tecido subcutâneo e região distal de membros, é localmente infiltrativa e o tumorraramente faz metástase. O hemangiopericitoma, geralmente recidiva após o procedimento cirúrgico,pela dificuldade em identificar as suas margens durante a excisão cirúrgica e pela sua localização,que muitas vezes ocorre em região de membros onde se encontra maior dificuldade em obter amplas margens de segurança. O melhor tratamento consiste na remoção cirúrgica inicial e agressiva, associada à radioterapia, que conseguem controlar a neoplasia e aumentar o tempo de vida do paciente, já a quimioterapia se mostra sem sucesso. Foi atendido na unidade hospitalar para animais de companhia da PUCPR, uma cadela, adulta, sem raça definida, com tumor na região lateral da coxa. Ao exame fisíco este tumor apresentava-se eritematoso, de abrangência epidermodermal, consistência firme, superfície ulcerada e com secreção purulenta. O exame histopatológico foi conclusivo de hemangiopericitoma. O paciente foi encaminhado para exérese tumoral e cirurgia plástico reparadora, que requereu retalho deilíaca circunflexa profunda.AU

Hemangiopericytoma in dogs is a common malignancy that affects soft tissues and has mesenquimal origin. Often affects the subcutaneous tissue of the distal limbs, is a locally infiltrative tumorand rarely metastatic. Hemangiopericytoma usually relapse after surgery, due to the difficulty of identifying tumor margins during surgical excision, and location of these tumors that often occur in the limbs where it is more difficultto obtain wide margins of safety. The best treatment is early and aggressive surgical procedure, associated with radiotherapy, wich can control the tumor growth and increase the lifetime of the patient, chemotherapy has shown without success.Was referred to the veterinary hospital of PUCPR a female canine, adult, mixed breed, with a history of tumor in the lateral aspect of the thigh. Physical examination showed an erythematous tumor, spanning epidermodermal,firm consistency, ulcerated surface and purulent. Histopathological exam was conclusivefor hemangiopericytoma. The patient was referred for tumor resection and reconstructive plastic surgery, which required deep circumflex iliac flap.AU

Retalho de avanço toracocervical dorsal em cão com mastocitoma / Advancement flap thoracocervical dorsal dog with mast cell tumor

O Mastocitoma canino, também conhecido como mastocitoma histiocítico ou sarcoma da célula do mastócito é a neoplasia mais comum que acomete os cães, representando até 27% dos tumores malignos desta espécie, e caracteriza-se pela proliferação dos mastócitos. O tratamento consiste na exérese tumoral com margem de segurança, seguido de protocolo quimioterápico. A cirurgia plástica reparadora está indicada para reparar o leito pós-exérese, especialmente com o uso de retalho cutâneo vascularizado. O presente relato tem como objetivo apresentar um caso de mastocitoma grau II na região cervical dorsal de um cão,que necessitou da técnica de cirúrgia plástico reparadora para correção da ferida cirúrgica remanescente.AU

The canine mast cell tumor, also known as histiocytic mastocytoma cell or mast cell sarcoma is the most common cancer that affects dogs, representing up to 27% of malignant tumors of this kind and is characterized by proliferation of mast cells. The treatment consists of tumor resection with a safety margin, followed by chemotherapy protocol. The reconstructive plastic surgery is indicated to repair the bed post-excision, especially with the use of vascularized skin flap. This paper aims to report a case of mastocytoma grade II in dorsal cervical region of a dog, which used the restorative plastic surgery technique for correction of the surgical wound.AU

Retalho de avanço toracocervical dorsal em cão com mastocitoma / Advancement flap thoracocervical dorsal dog with mast cell tumor

O Mastocitoma canino, também conhecido como mastocitoma histiocítico ou sarcoma da célula do mastócito é a neoplasia mais comum que acomete os cães, representando até 27% dos tumores malignos desta espécie, e caracteriza-se pela proliferação dos mastócitos. O tratamento consiste na exérese tumoral com margem de segurança, seguido de protocolo quimioterápico. A cirurgia plástica reparadora está indicada para reparar o leito pós-exérese, especialmente com o uso de retalho cutâneo vascularizado. O presente relato tem como objetivo apresentar um caso de mastocitoma grau II na região cervical dorsal de um cão,que necessitou da técnica de cirúrgia plástico reparadora para correção da ferida cirúrgica remanescente.

The canine mast cell tumor, also known as histiocytic mastocytoma cell or mast cell sarcoma is the most common cancer that affects dogs, representing up to 27% of malignant tumors of this kind and is characterized by proliferation of mast cells. The treatment consists of tumor resection with a safety margin, followed by chemotherapy protocol. The reconstructive plastic surgery is indicated to repair the bed post-excision, especially with the use of vascularized skin flap. This paper aims to report a case of mastocytoma grade II in dorsal cervical region of a dog, which used the restorative plastic surgery technique for correction of the surgical wound.

Retalho padrão axial de ilíaca circunflexa profunda para tratamento de hemangiopericitoma em cão / Axial pattern flap of deep iliac circumflex treatment of hemangiopericytoma in dog

Hemangiopericitoma canino é uma neoplasia de origem mesenquimal comum que afeta tecidos moles.Frequentemente atinge tecido subcutâneo e região distal de membros, é localmente infiltrativa e o tumorraramente faz metástase. O hemangiopericitoma, geralmente recidiva após o procedimento cirúrgico,pela dificuldade em identificar as suas margens durante a excisão cirúrgica e pela sua localização,que muitas vezes ocorre em região de membros onde se encontra maior dificuldade em obter amplas margens de segurança. O melhor tratamento consiste na remoção cirúrgica inicial e agressiva, associada à radioterapia, que conseguem controlar a neoplasia e aumentar o tempo de vida do paciente, já a quimioterapia se mostra sem sucesso. Foi atendido na unidade hospitalar para animais de companhia da PUCPR, uma cadela, adulta, sem raça definida, com tumor na região lateral da coxa. Ao exame fisíco este tumor apresentava-se eritematoso, de abrangência epidermodermal, consistência firme, superfície ulcerada e com secreção purulenta. O exame histopatológico foi conclusivo de hemangiopericitoma. O paciente foi encaminhado para exérese tumoral e cirurgia plástico reparadora, que requereu retalho deilíaca circunflexa profunda.

Hemangiopericytoma in dogs is a common malignancy that affects soft tissues and has mesenquimal origin. Often affects the subcutaneous tissue of the distal limbs, is a locally infiltrative tumorand rarely metastatic. Hemangiopericytoma usually relapse after surgery, due to the difficulty of identifying tumor margins during surgical excision, and location of these tumors that often occur in the limbs where it is more difficultto obtain wide margins of safety. The best treatment is early and aggressive surgical procedure, associated with radiotherapy, wich can control the tumor growth and increase the lifetime of the patient, chemotherapy has shown without success.Was referred to the veterinary hospital of PUCPR a female canine, adult, mixed breed, with a history of tumor in the lateral aspect of the thigh. Physical examination showed an erythematous tumor, spanning epidermodermal,firm consistency, ulcerated surface and purulent. Histopathological exam was conclusivefor hemangiopericytoma. The patient was referred for tumor resection and reconstructive plastic surgery, which required deep circumflex iliac flap.