Primary Splenic Torsion in Dog as a Cause of Atypical Acute Abdomen

Background: A primary splenic torsion occurs when the organ rotates around its vascular pedicle in the absence of any other concomitant disease. The occurrence of primary splenic torsion is rare, with a prevalence lower than 1%. Splenic torsion is more often related to dilated gastric volvulus syndrome, and it has no clear etiology despite reports that associate it with congenital abnormalities or traumatic ruptures of the gastrosplenic or splenocolic ligaments. This study reports a case of splenic torsion in an American Pit Bull terrier dog, its related symptomatology, and the treatment adopted.Case: A 3-year-old male American Pit Bull terrier dog weighing 32 kg was admitted to the hospital with symptoms of acute abdomen, lethargy, increased abdominal volume, discomfort, restlessness, and with a history of collapse three days prior to admission. Clinical examination revealed lethargy, pale mucous membranes, reduced capillary refill time, moderate dehydration, and hyperthermia. Abdominal palpation revealed increased abdominal volume in the epigastric and mesogastric areas. CBC and serum biochemistry profile revealed hypochromic normocytic anemia, leukocytosis with absolute neutrophilia and eosinopenia, mild hypoalbuminemia, and thrombocytopenia. PCR for detection of Babesia sp. and Ehrlichia sp., which returned negative results, and measurement of clotting time, which was prolonged, were performed to exclude immune-mediated hemolytic anemia. Radiographic and ultrasonographic images showed a normal stomach, but revealed presence of splenomegaly. An exploratory laparotomy allowed direct observation of the spleen, which exhibited an increased volume, a blackened, cold, hyperemic appearance, and a complete torsion of the splenic vascular pedicle; the surgical team opted to perform total splenectomy rather than undoing the pedicle twist. The animal returned to the hospital after 10 days exhibiting an excellent clinical condition. Healing of the incisional wound was satisfactory, with formation of epithelial tissue throughout its extension. Thirty days after the surgery, the hematological parameters were within normal ranges. The animal was discharged, and its owner received information on adequate nutrition.Discussion: Clinical evaluation of symptoms of discomfort and increase in abdominal volume, especially on the left side, together with the information of the anamnesis, led to a suspicion of splenic torsion in this case. Splenic torsion can exhibit numerous clinical signs; here, ultrasound imaging allowed diagnosis of this condition. The anemia observed by means of the hematological tests could be explained by sequestration of red blood cells by the rotated spleen, with and inflammatory leukogram resulting from inflammation of the poorly perfused parenchyma, local peritonitis, and, possibly, increased release of neutrophils from the bone marrow. Thrombocytopenia and prolonged clotting time may be secondary to splenic torsion, as shown in this case. Splenectomy is the treatment of choice in cases of acute splenic torsion. This procedure is relatively easy to perform. Additionally, merely undoing the torsion does not prevent its recurrence, and may allow necrotic debris to reach the circulation. No intercurrences or involvement of adjacent organs were observed in this patient. This is due to factors such as early diagnosis, preoperative stabilization of the patient, and the short time between diagnosis and the surgical procedure, reiterating its importance in emergency conditions such as splenic torsion

SOLUBILIZATION OF POTASSIUM FROM ALTERNATIVE ROCKS BY HUMIC AND CITRIC ACIDS AND COFFEE HUSK

ABSTRACT Brazil imports most of the potassium that it consumes in agriculture, however, such huge external dependence can be minimized with the use of alternative local K bearing rocks. This experiment was conducted with the objective of evaluating the solubility of nepheline syenite and glauconite as a function of three organic matrices, humic acid, citric acid and coffee husk. Incubation of low grade K rocks and organic matrices were done in laboratory conditions, in a completely randomized design. Each rock was mixed with five different doses of each organic matrix and the potassium solubilized was measured periodically, during 180 days. Regardless of the organic matrix and its dose investigated, nepheline syenite samples released more K than the modified glauconite. Soluble K increased as the incubation time increased and its release was greater as the organic matrix dose increased. There was more soluble K when the coffee husk was mixed with the potassic rocks, in relation to the humic and citric acids

Identificação de dopammina a partir de sensores LIG com diferentes compostos metálicos

O presente trabalho aplica a técnica LIG (Laser Induced Graphene) para criação de sensores eletroquímicos para identificação de dopamina em PBS (pH=7)

Coccidiosis due to Isospora curio (Trachta & Silva et al. 2006) in lesser seed-finches Sporophila angolensis (Linnaeus, 1766) at a commercial breeding facility - Case report

ABSTRACT. Batista L.C. deS.O., Vasconcellos M. dosS.D., dos Passos M.M., Lopes B. doB. & Berto B.P. Coccidiosis due to Isospora curio (Trachta & Silva et al. 2006) in lesser seed-finches Sporophila angolensis (Linnaeus, 1766) at a commercial breeding facility - Case report. [Coccidiose por Isospora curio (Trachta & Silva et al. 2006) (Apicomplexa: Eimeriidae) em Sporophila angolensis (Linnaeus, 1766) numa criação comercial - Relato de caso]. Revista Brasileira de Medicina Veterinária, 37(4):401-405, 2015. Curso de Pós-Graduação em Ciências Veterinárias, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Campus Seropédica, BR 465 Km 7, Seropédica, RJ 23890-000, Brasil. E-mail: [email protected] Monitoring of a lesser seed-finch breeding is of great importance, for even the clinically healthy animals may be infected. When coccidiosis is diagnosed early, it can often be avoided clinical signs of the disease and the number of deaths in the breeding when associated with hygiene practices in the breeding system. Despite of the low frequency of coccidiosis in the studied passerines, Isospora curio was the unique species found associated with passerines that died in the commercial breeding facility

Estudo numérico de vazamento de óleo utilizando dados de hidrodinâmica média do estuário da Lagoa dos Patos

The impossibility of eliminating risks of accidents involving oil spills stresses the importance in establishes fast action protocols against these eventual disasters, mainly in harbor zones. In this study sixty simulations with different scenarios for oil spill events were simulated in different environmental conditions at the harbor zone of the city of Rio Grande - RS. The simulations were made using the numerical system Telemac-3D + ECOS. The hydrodynamic simulation period was of 365 days corresponding to the daily means calculated for the period between the years of 2003 and 2015. The hydrodynamic validation for the month of January of 2011 showed satisfactory results. The oil spills simulations, spaced over 365 days, were used to identify the main forces controlling the oil particles movement and its final destination. The trend of the movement of oil particles is due the combination of winds, currents and water discharge from the Patos lagoon tributary rivers. The different scenarios of flood/ebb regime and different direction and intensity of winds generate distinct interactions over the oil particles trajectories that can intensify or slow down the displacement velocity of the particles. Lastly, the ECOS model showed satisfactory results can support actions in case of accidents involving oil spills at the Super Porto region.A impossibilidade de eliminar riscos de acidentes envolvendo o derramamento de óleo, principalmente em zonas portuárias, ressalta a importância de estabelecer protocolos para uma rápida ação contra estes eventuais desastres. Neste estudo foram simulados sessenta cenários de eventos de derrame de óleo com diferentes condições ambientais na região portuária da cidade de Rio Grande – RS, modelados pelo sistema numérico Telemac-3D + ECOS. O período da simulação hidrodinâmica foi de 365 dias, sendo este equivalente às médias diárias calculadas entre os anos de 2003 a 2015. Os resultados para a validação da hidrodinâmica, realizada no mês de janeiro de 2011, mostraram-se satisfatórios. As simulações dos vazamentos escolhidas, ao longo dos 365 dias, foram utilizadas para a identificação das principais forçantes que controlam o movimento das partículas de óleo, assim como, o seu destino final. A tendência do deslocamento das partículas de óleo é devido a combinação dos efeitos dos ventos, correntes e descarga dos afluentes da Lagoa dos Patos. Os diferentes regimes de enchentes, vazantes e condições de ventos podem criar distintas interações nos efeitos sobre as trajetórias das partículas de óleo, podendo intensificar ou retardar a velocidade de deslocamento das partículas de óleo. Sendo assim, os resultados do estudo também podem ser utilizados para subsidiar ações em caso de acidentes que envolvam vazamentos de óleo no Super Porto

Aplicação de sensor eletroquímico de grafeno por indução a laser para determinação de glifosato.

Este trabalho busca o desenvolvimento de soluções alternativas capazes de detectar e quantificar baixas concentrações dos resíduos de agrotóxicos. Para resíduos do Glifosato, a maioria das análises são feitas com as técnicas de cromatografia, que são procedimentos que utilizam grande quantidade de reagentes, alto tempo de análises e custo elevado (SETZNAGL; CESARINO, 2020). Assim, todos esses adventos dificultam o monitoramento desses poluentes. A presente proposta tem o intuito de desenvolver dispositivo para monitoramento ambiental do Glifosato com o princípio de baixo custo e fácil manuseio, através de análises eletroquímicas

Primary Splenic Torsion in Dog as a Cause of Atypical Acute Abdomen

Background: A primary splenic torsion occurs when the organ rotates around its vascular pedicle in the absence of any other concomitant disease. The occurrence of primary splenic torsion is rare, with a prevalence lower than 1%. Splenic torsion is more often related to dilated gastric volvulus syndrome, and it has no clear etiology despite reports that associate it with congenital abnormalities or traumatic ruptures of the gastrosplenic or splenocolic ligaments. This study reports a case of splenic torsion in an American Pit Bull terrier dog, its related symptomatology, and the treatment adopted.Case: A 3-year-old male American Pit Bull terrier dog weighing 32 kg was admitted to the hospital with symptoms of acute abdomen, lethargy, increased abdominal volume, discomfort, restlessness, and with a history of collapse three days prior to admission. Clinical examination revealed lethargy, pale mucous membranes, reduced capillary refill time, moderate dehydration, and hyperthermia. Abdominal palpation revealed increased abdominal volume in the epigastric and mesogastric areas. CBC and serum biochemistry profile revealed hypochromic normocytic anemia, leukocytosis with absolute neutrophilia and eosinopenia, mild hypoalbuminemia, and thrombocytopenia. PCR for detection of Babesia sp. and Ehrlichia sp., which returned negative results, and measurement of clotting time, which was prolonged, were performed to exclude immune-mediated hemolytic anemia. Radiographic and ultrasonographic images showed a normal stomach, but revealed presence of splenomegaly. An exploratory laparotomy allowed direct observation of the spleen, which exhibited an increased volume, a blackened, cold, hyperemic appearance, and a complete torsion of the splenic vascular pedicle; the surgical team opted to perform total splenectomy rather than undoing the pedicle twist. The animal returned to the hospital after 10 days exhibiting an excellent clinical condition. Healing of the incisional wound was satisfactory, with formation of epithelial tissue throughout its extension. Thirty days after the surgery, the hematological parameters were within normal ranges. The animal was discharged, and its owner received information on adequate nutrition.Discussion: Clinical evaluation of symptoms of discomfort and increase in abdominal volume, especially on the left side, together with the information of the anamnesis, led to a suspicion of splenic torsion in this case. Splenic torsion can exhibit numerous clinical signs; here, ultrasound imaging allowed diagnosis of this condition. The anemia observed by means of the hematological tests could be explained by sequestration of red blood cells by the rotated spleen, with and inflammatory leukogram resulting from inflammation of the poorly perfused parenchyma, local peritonitis, and, possibly, increased release of neutrophils from the bone marrow. Thrombocytopenia and prolonged clotting time may be secondary to splenic torsion, as shown in this case. Splenectomy is the treatment of choice in cases of acute splenic torsion. This procedure is relatively easy to perform. Additionally, merely undoing the torsion does not prevent its recurrence, and may allow necrotic debris to reach the circulation. No intercurrences or involvement of adjacent organs were observed in this patient. This is due to factors such as early diagnosis, preoperative stabilization of the patient, and the short time between diagnosis and the surgical procedure, reiterating its importance in emergency conditions such as splenic torsion

Aplicação forense de nanoparticulas de zinco como reveladores de impressões digitais latentes

O objetivo do trabalho foi avaliar a eficácia de um pó formulado com as NPs ZnO como reveladores de IDL