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Purpose: To evaluate hemostasis of the ovarian arteriovenous complex (OAVC) in relation to surgical time, practicality and feasibility in three ovariohysterectomy (OH) techniques for queens. Methods: The experiment was performed on 21 female cats aged between six months and seven years, randomly arranged into three groups in a completely randomized design. Group one was spayed using the conventional three-clamp technique, group two using the OAVC knotting technique, and group three using the ovarian pedicle rotation technique. The students t-test and Tukeys test were used to compare the mean surgical times. Results: The conventional technique, which uses thread wires, was more laborious and required longer execution time compared to the other two techniques. The OAVC knotting technique was the fastest and had the least blood loss. Conclusion: The use of techniques that do not use synthetic materials for OAVC hemostasis was proven to be appropriate in castration projects, provided that the surgical team has sufficient training.(AU)

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Orchiectomy is often employed in zootechnical activities with the main objective of carcass improvement; therefore, the search for alternatives that minimize surgical trauma, operative time and mainly decrease operating costs is pertinent. The nylon clamp is a tensile strength device, well tolerated by the body and inexpensive. It has been used as a hemostatic method in several surgical procedures. The aim of this study was to evaluate the operability and functionality of this device for the preliminary hemostasis of the spermatic cord in the open orchiectomy, comparing it to the surgical nylon thread. Twenty male pigs were divided into 2 experimental groups: GI (clamp - 10 animals) and GII (surgical nylon thread - 10 animals). The surgical time, the degree of hemostasis, the size of the incision, the presence or absence of edema and secretions, besides the weight gain were evaluated. For analysis of inflammatory response, fibrinogen was assessed. Compared to surgical nylon, the clamps presented advantages over surgical time and blood loss. It was concluded that the use of nylon clamps for hemostasis of the spermatic cords of pigs submitted to orchiectomies reduced the total time of surgeries, as well as hemorrhages, when compared to hemostasis with nylon thread. Furthermore, weight gain and induction of inflammatory response were not influenced by the hemostasis method used.(AU)

A orquiectomia é frequentemente empregada nas atividades zootécnicas com o objetivo principal de melhoria da carcaça; portanto, a busca de alternativas que minimizem o trauma cirúrgico, o tempo operatório e principalmente diminuir os custos operacionais é pertinente. A braçadeira de náilon é um dispositivo resistente à tração, bem tolerado pelo organismo e de baixo custo e tem sido utilizado como método hemostático em diversos procedimentos cirúrgicos. Objetivou-se avaliar em suínos, a operacionalidade e funcionalidade deste dispositivo para hemostasia prévia do cordão espermático na orquiectomia aberta comparando-a ao fio de náilon cirúrgico. Foram utilizados 20 suínos machos, divididos em 2 grupos experimentais: GI (braçadeira - 10 animais) e GII (fio de náilon cirúrgico - 10 animais). Avaliou-se o tempo cirúrgico, o grau de hemostasia, o tamanho da incisão, a presença ou não de edema, o ganho de peso e se houve secreção ou não. Para análise da resposta inflamatória, a quantificação do fibrinogênio. As braçadeiras mostraram-se de fácil e rápida aplicação, conferindo a constrição necessária para a estase sanguínea e obliteração do cordão espermático de suínos. Comparada ao náilon cirúrgico, as braçadeiras apresentaram vantagens relativas ao tempo cirúrgico e à perda sanguínea. Concluiu-se que a utilização de braçadeiras de náilon para hemostasia dos cordões espermáticos de suínos submetidos à orquiectomias reduziu o tempo total das cirurgias, assim como hemorragias, quando comparada à hemostasia com fio de náilon. Além disso, o ganho de peso e a indução de resposta inflamatória não foram influenciados pelo método de hemostasia utilizado.(AU)

Assuntos

RESUMO

Orchiectomy is often employed in zootechnical activities with the main objective of carcass improvement; therefore, the search for alternatives that minimize surgical trauma, operative time and mainly decrease operating costs is pertinent. The nylon clamp is a tensile strength device, well tolerated by the body and inexpensive. It has been used as a hemostatic method in several surgical procedures. The aim of this study was to evaluate the operability and functionality of this device for the preliminary hemostasis of the spermatic cord in the open orchiectomy, comparing it to the surgical nylon thread. Twenty male pigs were divided into 2 experimental groups: GI (clamp - 10 animals) and GII (surgical nylon thread - 10 animals). The surgical time, the degree of hemostasis, the size of the incision, the presence or absence of edema and secretions, besides the weight gain were evaluated. For analysis of inflammatory response, fibrinogen was assessed. Compared to surgical nylon, the clamps presented advantages over surgical time and blood loss. It was concluded that the use of nylon clamps for hemostasis of the spermatic cords of pigs submitted to orchiectomies reduced the total time of surgeries, as well as hemorrhages, when compared to hemostasis with nylon thread. Furthermore, weight gain and induction of inflammatory response were not influenced by the hemostasis method used.

A orquiectomia é frequentemente empregada nas atividades zootécnicas com o objetivo principal de melhoria da carcaça; portanto, a busca de alternativas que minimizem o trauma cirúrgico, o tempo operatório e principalmente diminuir os custos operacionais é pertinente. A braçadeira de náilon é um dispositivo resistente à tração, bem tolerado pelo organismo e de baixo custo e tem sido utilizado como método hemostático em diversos procedimentos cirúrgicos. Objetivou-se avaliar em suínos, a operacionalidade e funcionalidade deste dispositivo para hemostasia prévia do cordão espermático na orquiectomia aberta comparando-a ao fio de náilon cirúrgico. Foram utilizados 20 suínos machos, divididos em 2 grupos experimentais: GI (braçadeira - 10 animais) e GII (fio de náilon cirúrgico - 10 animais). Avaliou-se o tempo cirúrgico, o grau de hemostasia, o tamanho da incisão, a presença ou não de edema, o ganho de peso e se houve secreção ou não. Para análise da resposta inflamatória, a quantificação do fibrinogênio. As braçadeiras mostraram-se de fácil e rápida aplicação, conferindo a constrição necessária para a estase sanguínea e obliteração do cordão espermático de suínos. Comparada ao náilon cirúrgico, as braçadeiras apresentaram vantagens relativas ao tempo cirúrgico e à perda sanguínea. Concluiu-se que a utilização de braçadeiras de náilon para hemostasia dos cordões espermáticos de suínos submetidos à orquiectomias reduziu o tempo total das cirurgias, assim como hemorragias, quando comparada à hemostasia com fio de náilon. Além disso, o ganho de peso e a indução de resposta inflamatória não foram influenciados pelo método de hemostasia utilizado.

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Background: Ovariectomy(OVE) and ovariohysterectomy (OVH) are the most performed surgical procedures in Veterinary Medicine. In videosurgery, both in stray animals at sterilization campaigns and in the increasing demand of tutors to perform the technique. Laparoscopy results in reduced tissue damage, due to minimal organ manipulation and surgical access hemostasis can be performed by several methods, such as electro-coagulation, clips, and intra and extracorporeal ligatures. A pre-tied ligature system, or endoloop, is a haemostatic technique comprised of a slipknot and knot pusher, which is inserted into the abdominal cavity through one of the laparoscopic ports. The aim of this study was to describe a novel OVE technique in cats, in which haemostasis was performed using miniloop, aimed at reducing the number of ports needed for knot tying.Material, Methods & Results: Ten healthy not spayed female cats, aged 6 months to 5 years, were selected for this study. They were submitted to an OVE using miniloop as haemostasis method. Access to the peritoneal cavity was through two 5 mm ports on the midline of the ventral abdomen, 5 cm apart, with one immediately caudal to the umbilical scar and the other in between the last pair of teats. The first trocar was inserted at the caudal incision using the Hasson technique and a 5 mm zero-degree optics attached to a camera was introduced through it. The placement of the second access port was video assisted. For ovary exposure, the patients were positioned in lateral recumbency on the contralateral side to the ovary being removed. The miniloop was composed of a 2 mm diameter minitrocar, a 1.8 mm knot pusher, and a pre-tied slipknot. It was introduced percutaneously at the lateral abdominal wall. It was inserted attached to a pre-tied loop ligature.[...](AU)

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Background: Splenic hematoma is an encapsulated blood accumulation, which is macroscopically indistinguishable from malignant spleen. The treatment of choice and final diagnosis were by splenectomy and exploratory laparotomy followed by biopsy and histopathological examination, respectively. Nylon tie bands are devices made of polyamide 6.6, same material of surgical nylon wires, and has been used in different surgical procedures in animals. The present report case aimed to describe the use of nylon tie bands polyamide 6.6 in a 2.3-year-old Golden retriever dog diagnosed with splenic hematoma and lymphoid hyperplasia; and the clinical presentation, diagnostic evaluation, histological diagnosis of splenic hematoma and lymphoid hyperplasia. Case: A 2.3-year-old intact male Golden retriever dog was presented with history of anorexia, apathy, regurgitation and weight loss. During the physical examination was identified a mass in the left side of abdomen. The complete blood count (CBC), serum biochemistry, urinalysis, and thoracic radiographs were no alteration. Abdominal ultrasound revealed splenomegaly and heterogeneous hypoechoic structure. Splenectomy using an adjustable nylon ties polyamide 6.6 for hemostasis technique was performed during an exploratory laparotomy. The spleen presented hematoma and lymphoid hyperplasia at the histopathological examination, as well as the presence of siderocalcinotic plate in the trabecular spleen. The dog presented with no regurgitation, apathy or anorexia after 10 days of surgery. CBC, serum biochemistry analysis, thoracic radiographs and abdominal ultrasound revealed no abnormalities. Video laparoscopy did not showed any sign of adherence on the local where used the nylon tie bands. One year and three months after the surgery, the owner was contacted by telephone, since he had changed to other city, and he reported that the dog was healthy without any clinical signs...(AU)

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Background: Ovariectomy(OVE) and ovariohysterectomy (OVH) are the most performed surgical procedures in Veterinary Medicine. In videosurgery, both in stray animals at sterilization campaigns and in the increasing demand of tutors to perform the technique. Laparoscopy results in reduced tissue damage, due to minimal organ manipulation and surgical access hemostasis can be performed by several methods, such as electro-coagulation, clips, and intra and extracorporeal ligatures. A pre-tied ligature system, or endoloop, is a haemostatic technique comprised of a slipknot and knot pusher, which is inserted into the abdominal cavity through one of the laparoscopic ports. The aim of this study was to describe a novel OVE technique in cats, in which haemostasis was performed using miniloop, aimed at reducing the number of ports needed for knot tying.Material, Methods & Results: Ten healthy not spayed female cats, aged 6 months to 5 years, were selected for this study. They were submitted to an OVE using miniloop as haemostasis method. Access to the peritoneal cavity was through two 5 mm ports on the midline of the ventral abdomen, 5 cm apart, with one immediately caudal to the umbilical scar and the other in between the last pair of teats. The first trocar was inserted at the caudal incision using the Hasson technique and a 5 mm zero-degree optics attached to a camera was introduced through it. The placement of the second access port was video assisted. For ovary exposure, the patients were positioned in lateral recumbency on the contralateral side to the ovary being removed. The miniloop was composed of a 2 mm diameter minitrocar, a 1.8 mm knot pusher, and a pre-tied slipknot. It was introduced percutaneously at the lateral abdominal wall. It was inserted attached to a pre-tied loop ligature.[...]

Assuntos

RESUMO

Background: Splenic hematoma is an encapsulated blood accumulation, which is macroscopically indistinguishable from malignant spleen. The treatment of choice and final diagnosis were by splenectomy and exploratory laparotomy followed by biopsy and histopathological examination, respectively. Nylon tie bands are devices made of polyamide 6.6, same material of surgical nylon wires, and has been used in different surgical procedures in animals. The present report case aimed to describe the use of nylon tie bands polyamide 6.6 in a 2.3-year-old Golden retriever dog diagnosed with splenic hematoma and lymphoid hyperplasia; and the clinical presentation, diagnostic evaluation, histological diagnosis of splenic hematoma and lymphoid hyperplasia. Case: A 2.3-year-old intact male Golden retriever dog was presented with history of anorexia, apathy, regurgitation and weight loss. During the physical examination was identified a mass in the left side of abdomen. The complete blood count (CBC), serum biochemistry, urinalysis, and thoracic radiographs were no alteration. Abdominal ultrasound revealed splenomegaly and heterogeneous hypoechoic structure. Splenectomy using an adjustable nylon ties polyamide 6.6 for hemostasis technique was performed during an exploratory laparotomy. The spleen presented hematoma and lymphoid hyperplasia at the histopathological examination, as well as the presence of siderocalcinotic plate in the trabecular spleen. The dog presented with no regurgitation, apathy or anorexia after 10 days of surgery. CBC, serum biochemistry analysis, thoracic radiographs and abdominal ultrasound revealed no abnormalities. Video laparoscopy did not showed any sign of adherence on the local where used the nylon tie bands. One year and three months after the surgery, the owner was contacted by telephone, since he had changed to other city, and he reported that the dog was healthy without any clinical signs...

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Background: Laparoscopic ovariectomy it is used more than 20 years in veterinary medicine, however, information of this technique in Brazil are rare. Also, the cost for his execution are high, specially the ovarian hemostasis procedure, that depends on highly specialized surgical instruments. The goal of this study is show the results achieved during laparoscopic ovariectomy in mares using a device to apply and cut tie-wraps, developed by the authors and that is in a patent process. Materials, Methods & Results: Four mares with ovarian pathologies were selected for a standing unilateral ovariectomy procedure and access to cavity occurred through three laparoscopic portals. The vessels and ligament were dissected to allow positioning of a polyamide tie-wrap by the device for cutting and applying those seals. Occlusion was made by pushing, and cutting through a rotation on the tie latch. Then, the mesovarium was cut with laparoscopic scissors and ovary removed by a communication between two accesses. Total surgical time and the equipment handling were noted. The average duration of surgical procedures was 80 ± 12.35 min and device handling time since its external preparation, application and cutting the polyamide tie-wraps was 3.4 ± 2.63 min. Only in one of four animals it was necessary to apply more than one tie, since the first promoted incomplete vessels occlusion [...](AU)

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RESUMO

Background: Laparoscopic ovariectomy it is used more than 20 years in veterinary medicine, however, information of this technique in Brazil are rare. Also, the cost for his execution are high, specially the ovarian hemostasis procedure, that depends on highly specialized surgical instruments. The goal of this study is show the results achieved during laparoscopic ovariectomy in mares using a device to apply and cut tie-wraps, developed by the authors and that is in a patent process. Materials, Methods & Results: Four mares with ovarian pathologies were selected for a standing unilateral ovariectomy procedure and access to cavity occurred through three laparoscopic portals. The vessels and ligament were dissected to allow positioning of a polyamide tie-wrap by the device for cutting and applying those seals. Occlusion was made by pushing, and cutting through a rotation on the tie latch. Then, the mesovarium was cut with laparoscopic scissors and ovary removed by a communication between two accesses. Total surgical time and the equipment handling were noted. The average duration of surgical procedures was 80 ± 12.35 min and device handling time since its external preparation, application and cutting the polyamide tie-wraps was 3.4 ± 2.63 min. Only in one of four animals it was necessary to apply more than one tie, since the first promoted incomplete vessels occlusion [...]

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RESUMO

Na cirurgia de ovariossalpingo-histerectomia (OSH), há várias técnicas para realização da hemostasia e da secção do pedículo ovariano, sendo mais comum a técnica das três pinças. O eletrobisturi bipolar pode ser utilizado com eficácia para hemostasia e corte de tecidos. Objetivou-se nesta pesquisa comparar, em gatas, a hemostasia e a secção do pedículo ovariano mediante o uso do eletrobisturi bipolar com a técnica das três pinças, ambas via celiotomia mediana, em relação ao tempo cirúrgico e à eficiência hemostática (hematócrito). Quarenta gatas, com idade de seis meses a sete anos, peso entre 1,68 e 4,14kg, foram submetidas à hemostasia e à secção desse pedículo, sendo 20 pela técnica convencional e 20 por meio do eletrobisturi bipolar. Na análise estatística, observou-se que o uso do eletrobisturi bipolar gera uma diminuição média significativa na duração da cirurgia, quando comparado com o outro método, sem diferenças quanto à comparação de hematócritos pré e pós-cirúrgicos. Por meio do modelo de regressão múltiplo, verificou-se que as variáveis: idade, peso, número de gestações, número de partos e número de cios não influenciaram significativamente no tempo. Concluiu-se, portanto, que o eletrobisturi bipolar oferece eficiência e maior rapidez na realização da hemostasia e da diérese do pedículo ovariano de gatas submetidas à OSH eletiva.(AU)

In ovariosalpingohisterectomy (OSH) surgery, there are several techniques for hemostasis and resection of ovarian pedicle, the most common being the three tweezers technique. The bipolar eletrobisturi can be used effectively for hemostasis and cutting tissue. The aim of this research was to compare, in cats, hemostasis and resection of ovarian pedicle eletrobisturi with bipolar forceps and the three techniques, both via median celiotomy, in relation to time and surgical hemostatic efficiency (hematocrit). Forty cats aged six months to seven years, weighing between 1.68 and 4.14kg, underwent hemostasis and pedicle of this section, 20 with the conventional technique and 20 with eletrobisturi bipolar. Statistical analysis showed that the use of bipolar eletrobisturi generates a significant decrease in the mean duration of surgery when compared with a method without differences in hematocrit comparing pre-and post-surgery. Through the multiple regression model we found that the variables age, weight, number of pregnancies, number of births and number of cycles did not significantly influence the time. We conclude, therefore, that the bipolar eletrobisturi is efficient and fast for hemostasis and dieresis ovarian pedicle of cats undergoing elective ovariohysterectomy.(AU)

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