Saulo Tadeu Lemos Pinto Filho

SOLUÇÃO HIPERSATURADA DE SAL COMO CONSERVANTE DE PERICÁRDIO CANINO UTILIZADO NA REPARAÇÃO DO MÚSCULO RETO ABDOMINAL DE RATOS WISTAR

Com a finalidade de testar a solucao hipersaturada de sal (na proporcao de 1,5g de sal comercial para 1m de agua tridestilada) como conservante, foram realizados implantes de pericardio canino mantido neste meio, no minimo por 90 dias, em lesoes provocadas no musculo reto abdominal de 24 ratos Wistar. Previamente a implantacao da membrana, a solucao foi avaliada quanto a presenca de bacterias e fungos, demonstrando resultados negativos. Durante o procedimento cirurgico, foi removido um segmento da largura completa do musculo reto abdominal direito, de 1,5cm de comprimento. A lesao produzida foi preenchida com o implante, sendo este suturado as bordas musculares com fio de nailon monofilamentar 6-0 em padrao continuo simples. Os animais operados foram subdivididos em seis grupos (I, II, III, IV, V, VI) de igual numero, sendo posteriormente sacrificados aos tres, cinco, sete,10, 15 e 30 dias do pos-operatorio, afim de se realizar as avaliacoes macroscopica e histologica da regiao do implante. Nos exames macroscopico e histologico pode-se constatar neovascularizacao no local reparado, que gradualmente foi decrescendo. Ao exame histologico foi observado a substituicao gradativa do implante por tecido conjuntivo fibroso, sem a ocorrencia de eliminacao do implante ou contaminacao. Atraves destes achados e possivel afirmar que a solucao hipersaturada de sal estudada, e um meio adequado para a conservacao de pericardio canino.

Solução hipersaturada de sal ou de glicerina a 98% como conservantes de centros frênicos caninos utilizados na reparação de defeitos musculares em ratos wistar

Aiming to evaluate the over saturated salt solution (1.5g commercially available salt in 1.5ml of tridestilled water) as tissue conservator of the canine frenic center and to compare its conservator potential with the well-established glycerin 98% conservator solution, peaces of this tissue were implanted to repair produced muscle lesions in 28 Wistar rats. Previously both solutions had been tested for bacterial and fungal contaminations, both exams with negative results. In each experimental animal, lesions were made in both Rectus abdominis muscles and repaired with the tissue preserved in both solutions. The animals were divided in seven groups and sacrificed in three, five, seven, 10, 15, 30 and 60 days after reparation for histological evaluation of the implanted region. In macroscopic exam the complete substitution of the implants by live tissue was observed, without rejection of the implanted tissue. In the microscopic evaluation we observed that the substitutions were made by fibrous conjunctive tissue deposition. At the end of the evaluation period, the implanted membranes were not present in repaired regions. In both conserved tissues there were not differences in tissue reactions. The over saturated salt, and 98% glycerin solutions presented similar results in the canine frenic center preservation indicating that both solutions may be utilized to preserve this membrane.

Dilatação esofágica endoscópica associada ao uso de triancinolona intramural em cadela com estenose de esôfago após ovariohisterectomia eletiva

The acquired esophageal stenosis usually occurs due to a severe esophagitis, resulting in the healing process with proliferation off ibrous tissue. Is gastroesophageal refluxin anesthetized animals among the reasons of this disease. This paper reports a case of esophageal luminal endoscopic dilations associated with intralesional triamcinolone in a bitch with esophageal strictures. A mongrel canines hows regurgitation and progressive weight loss. These signs appeared after elective laparoscopic OVH performed, where the patient had part of regurgitation during surgery. Based on clinical and endoscopic findings it was possible to diagnostic stenosis in the final third of the cervical esophagus. The treatment was done with esophageal dilations and intraluminnal triamcinolone administration. This procedure was repeated once a week for four weeks. The 15th dilatation occurred 14 days after the 14th. The patient was discharged after seven days of the final dilatation with no more regurgitation, even when feeding dry kibble within o incline. We concluded that the esophageal dilation associated with in tralesional triamcinolone were effective esophageal strictures treatment in this case.

Reconstituição experimental da parede torácica de gatos com implante heterógeno de cartilagem auricular conservada em glicerina a 98

Twelve adult cats were divided in groups GI and GII with the objective of testing a dog auricular cartilage implant conserved in 98% glycerin as an alternative to repair thoracic wall defects. All animals were submitted to a resection of the medial portion of the thorax by removal of the 7th, 8th and 9th ribs and posterior cartilage implantation. GI had the adjacent musculature preserved and in GII cats had it removed. The animals were clinically evaluated in the post operative period and after sixty days submitted to euthanasia for microscopic evaluation of the implanted local. Proliferation of granulation tissue and neomorph over the implant was observed in all animals and some had lung and diaphragm adherence. The heterograft cartilage implant conserved in 98% glycerin can be used for reconstruction of the thoracic wall when defects do not exceed the size of three ribs. In sixty days the cats cartilage implant will be substituted by scar tissue with no signs of rejection.

Laparoscopic-assisted prepubic urethrostomy in a cat with urethral stenosis

Urethrostomy is a surgical technique used in cases of partial or total obstruction of the urethra, and the laparoscopic approach may be a treatment option. Due to the scarcity of studies involving the technique, this paper reports the case of laparoscopic-assisted pre-pubic urethrostomy (hybrid laparoscopic) in a cat with urethral stricture. A five-years-old cat presenting recurrent feline lower urinary tract disease (FLUTD) had undergone to perineal urethrostomy two years and nine months ago. After this procedure, the patient underwent another four corrective surgeries without success. Laboratory tests (blood count and biochemical) and image diagnosis were realized. The patient was subjected to laparoscopic-assisted pre-pubic urethrostomy and it was achieved therapeutic success and adequate patient quality of life. It is concluded that this technique is feasible and safe in cats, making it a possible choice of surgical treatment for urethral stricture.

Biomecânica óssea e ensaios biomecânicos: fundamentos teóricos

The knowledge of the mechanical properties of bone and fractures is important in health sciences. Although, the concepts and principles that determine their understandings often are not clear to the professionals that working in the medical fields. This review aims to bring basic concepts and information about the biomechanics of bones, and some types of biomechanical tests. Through these tests, surveys are developed for evaluation and/or comparison of different fixation devices and orthopaedic implants using cadaveric bones, mathematical models, as well as synthetic bones, all alternatives to animal experimentation. Although, the biomechanical tests are widely known and disseminated in other countries, but it is underutilized in Brazilian orthopaedics research.

Esofagoplastia torácica com retalho de pericárdio em gatos

The efficiency of autogenous pericardial flap was evaluated as an alternative surgical procedure for repairing lesion in the thoracic esophagus in the feline. Twelve adult cats were studied. Six animals were observed at the 15 th day and other animals at the 30 th day. All animals were submitted to esophageal resection and subsequently repair with autogenous pericardial graft. The animals were clinically evaluated after surgery. At the determined period of observation the animals were sacrificed. Gross and microscopic evaluation were done from the surgical site at the esopahagus. An esophageal mucous membrane proliferation was identified on most of the grafts.

Hérnia peritoneopericárdica em cão

A male, five years old mongrel dog weighting 23kg, was refered presenting periodic digestive disturbs and dispnoea. A descompensated peritoneopericardical hernia was diagnosticated and a voluminous content (distended stomach, two liver lobes, partial spleen and a segment of the duodenum with pancreas) was reduced. The diaphragm and pericardium were sutured simultaneously with poliglactin 910. The animal had a complete postoperative recovery without complications.

Urethral prolapse corrected by microsurgery in a cat: a case report

Urethral prolapse is a rare condition in dogs and cats. A 7-month-old male cat presented with intermittent penile bleeding and a red mass protruding from the tip of the penis. Urethral prolapse was diagnosed by using a surgical microcamera to examine the genital area. Urethroplasty and preputial advancement surgery were performed using a surgical microscope, to successfully correct the urethral prolapse.

HEPATECTOMIA PARCIAL POR CARCINOMA HEPATOCELULAR EM CÃO - RELATO DE CASO

Hepatocellular carcinoma is a primary liver cancer and malignant, which is not common in veterinary medicine, since the most common metastatic neoplasms. The partial hepatectomy is the treatment of choice for these cases, and laparoscopy can be used for better diagnosis, the prognosis is favorable after surgical resection. In this report, the patient had abdominal distension for clinical evaluation, hematological abnormality and the ultrasound showed a mass evident in right cranial abdomen