Fabiana Schiochet

Ovário-histerectomia laparoscópica em felinos hígidos: estudo comparativo de três métodos de hemostasia

Twenty-four healthy female mongrel cats were submitted to ovaryhisterectomy and distributed into three groups of eight animals each: (I) bipolar electrical cautery, (II) titanium clips, and (III) suture ligature for the occlusion of ovarian and uterine vessels, which were compared. The surgical procedure and the operation technique were viable in all three groups. Hemorrhagia and subcutaneous emphysema were the main intraoperative complications, and hematoma and suture dehiscence in the postoperative. The bipolar electrical cautery procedure is shown to be comparatively successful regarding the other studied methods for hemostasia.

Laparoscopic versus open splenectomy in dogs

In the last few years, the use of laparoscopy in veterinary medicine has expanded and consequently so was the need for studies that establish the advantages, disadvantages and possible complications of each procedure. The purpose of the current study was to describe a laparoscopic splenectomy technique and the alterations due to this access, and compare it to the open procedure in dogs. A total of 15 healthy female mongrel dogs were used, with mean weight of 17.4±2.5kg. The animals were distributed into three groups: Group IA of open splenectomy (laparotomy) using double ligation of the vessels of the splenic hilum with poliglicolic acid, Group IB of open splenectomy (laparotomy) with bipolar electrocoagulation of the splenic hilum, and Group II of laparoscopic access with bipolar electrocoagulation of the splenic hilum. Operative time, blood loss, size of incisions, complications during and after surgery were evaluated. Other parameters included pain scores, white blood cell (WBC) counts and postoperative serum concentrations of alanine aminotransferase (ALT), alkaline phosphatase (ALP), creatine kinase (CK), C-reactive protein (CRP), glucose and cortisol. No differences were found in the evaluation of parameters between both open splenectomy techniques employed. Laparoscopic access presented significant differences (p<0,05) when compared with open surgery: Longer operative time, smaller abdominal access, decrease in blood loss, lower concentrations of CRP, higher levels of CK and ALP, and lower scores in the pain scale. Laparoscopic surgery showed fewer complications of the surgical wound. No significant differences were observed between groups in the postoperative temperature, WBC, ALT, cortisol and glucose concentrations. In conclusion, the laparoscopic technique is useful for splenectomy in dogs, being advantageous in terms of blood loss, surgical stress and surgical wounds. However, it expends more operative time and causes transitory increase in hepatic and muscular enzymes.

Rinoplastia experimental com enxerto autógeno de costela em cães

The use of autologous rib to correct an experimental nasal bone lesion in dogs was performed in 15 animals, distributed in three post-operatory groups, and after 30, 60, and 90 days their clinical monitoring were finished. Each group was composed of four grafted animals and a control, in which it was used the material collected from the defect for coaptation. The animals received daily clinical monitoring and the graft integration was evaluated with radiographic exams taken every 15 days when the histological exam was performed. The surgical technique was easy to perform and had practical use. It was sufficient to correct all created lesions. The aesthetical effect was satisfactory; the radiographic exams proved the graft integration and the histological evaluation showed the presence of cells compatible with the viability of the technique.

Transrectal endoscopy with three different techniques of rectal suture associate: NOTES survival study with liver biopsy in a swine model

A cirurgia endoscopica por orificios naturais (NOTES) representa um novo conceito de cirurgia, caracterizada por ausencia de incisoes abdominais. Os acessos mais comumente usados sao o transvaginal e o transgastrico. Entretanto, as rotas transcolonica e transretal representam alternativas promissoras. O presente estudo objetiva avaliar tres diferentes tecnicas de sutura retal em tres suinos submetidos a NOTES transretal para biopsia hepatica, avaliando-se concomitantemente as repercussoes clinicas e hematologicas. Sob anestesia geral, foi realizada uma incisao transversal no reto para a passagem do endoscopio ate a cavidade abdominal em todos os animais para a realizacao da biopsia hepatica. Cada animal recebeu um tipo de sutura retal: sutura em dois planos; reforco com tela de polipropileno ou reforco com membrana de pericardio bovino. A NOTES transretal em modelo experimental suino nao apresentou implicacoes clinicas e hematologicas importantes, o que demonstra um acesso alternativo para biopsia hepatica. Nenhum animal apresentou sinais de peritonite, aderencias ou deiscencia de pontos. O uso de reforco com pericardio bovino para a sutura retal apresenta um atraso na cicatrizacao quando comparado com a sutura convencional ou com o uso de tela de polipropileno.