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Prevalence, distribution and density of gastric helicobacter colonization were determined in 50 healthy dogs, characterizing the macroscopic and microcospic aspects of their mucosa. Helicobacter prevalence was 96 percent, with greater distribution in the gastric fundus and body. Although the presence of macroscopic alterations was high (58 percent), it was characterized as mild due to the predominance of less severe ones (65.5 percent). High prevalence of mostly monoclear cell infriltate (64.7 percent) was noted. Association between the presence of helicobacter and macro and microscopic alterations was not observed(AU)
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Animais , Masculino , Feminino , Adulto , Cães , Helicobacter/patogenicidade , Mucosa Gástrica/microbiologia , Mucosa Gástrica/patologia , Gastroscopia/métodos , Gastroscopia/veterinária , Prevalência , CãesRESUMO
Prevalence, distribution and density of gastric helicobacter colonization were determined in 50 healthy dogs, characterizing the macroscopic and microcospic aspects of their mucosa. Helicobacter prevalence was 96 percent, with greater distribution in the gastric fundus and body. Although the presence of macroscopic alterations was high (58 percent), it was characterized as mild due to the predominance of less severe ones (65.5 percent). High prevalence of mostly monoclear cell infriltate (64.7 percent) was noted. Association between the presence of helicobacter and macro and microscopic alterations was not observed
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Animais , Masculino , Feminino , Adulto , Cães , Cães , Gastroscopia/métodos , Gastroscopia/veterinária , Helicobacter/patogenicidade , Mucosa Gástrica/microbiologia , Mucosa Gástrica/patologia , PrevalênciaRESUMO
Avaliaram-se as alterações do pH, da PO2 e da PCO2 do sangue arterial e da concentração de lactato sangüíneo de 11 cavalos adultos da raça Árabe, submetidos a exercício progressivo em esteira de alta velocidade. Antes do exercício, no intervalo dos 15 segundos finais de cada mudança de velocidade e aos 1, 3 e 5 minutos após o término do exercício foram coletadas amostras de sangue arterial e venoso para a mensuração dos gases sangüíneos e da concentração de lactato. O exercício resultou em diminuição do pH, da pressão parcial de O2 (PO2) e da pressão parcial de CO2 (PCO2). A concentração de lactato sangüíneo elevou-se exponencialmente a partir da velocidade de 8,0m/s até os momentos após término do exercício.(AU)
Changes in arterial blood pH, P O2 and P CO2, and blood lactate concentration in Arabian horses during exercise on a high-speed treadmill were investigated. Eleven horses were submitted to a conditioning period as well as to the incremental exercise test. The arterial and venous blood samples were obtained to evaluate the blood gas values and lactate concentration, prior to the beginning of the exercise, on the last 15 final seconds between every change of speed and at the 1, 3 and 5 minutes after the exercise. A decrease in pH, partial pressure of oxygen (P O2), and partial pressure of carbon dioxide (P CO2) and the blood lactate levels exponentially increase beyond the speed of 8m/s, during the incremental exercise test.(AU)
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Animais , Masculino , Feminino , Teste de Esforço/veterinária , Sistema Cardiovascular , Hipóxia/complicações , Hipóxia/veterinária , Hipercapnia/complicações , Hipercapnia/veterinária , Troca Gasosa Pulmonar/fisiologia , Lactatos/sangue , CavalosRESUMO
Avaliaram-se as alterações do pH, da P O2 e da P CO2 do sangue arterial e da concentração de lactato sangüíneo de 11 cavalos adultos da raça Arabe, submetidos a exercício progressivo em esteira de alta velocidade. Antes do exercício, no intervalo dos 15 segundos finais de cada mudança de velocidade e aos 1, 3 e 5 minutos após o término do exercício foram coletadas amostras de sangue arterial e venoso para a mensuração dos gases sangüíneos e da concentração de lactato. O exercício resultou em diminuição do pH, da pressão parcial de O2 (P O2) e da pressão parcial de CO2 (P CO2). A concentração de lactato sangüíneo elevou-se exponencialmente a partir da velocidade de 8,0m/s até os momentos após término do exercício.
Changes in arterial blood pH, P O2 and P CO2, and blood lactate concentration in Arabian horses during exercise on a high-speed treadmill were investigated. Eleven horses were submitted to a conditioning period as well as to the incremental exercise test. The arterial and venous blood samples were obtained to evaluate the blood gas values and lactate concentration, prior to the beginning of the exercise, on the last 15 final seconds between every change of speed and at the 1, 3 and 5 minutes after the exercise. A decrease in pH, partial pressure of oxygen (P O2), and partial pressure of carbon dioxide (P CO2) and the blood lactate levels exponentially increase beyond the speed of 8m/s, during the incremental exercise test.
Assuntos
Animais , Masculino , Feminino , Sistema Cardiovascular , Cavalos , Hipóxia , Hipercapnia/complicações , Hipercapnia/veterinária , Lactatos/sangue , Teste de Esforço/veterinária , Troca Gasosa Pulmonar/fisiologiaRESUMO
REASONS FOR PERFORMING STUDY: To our knowledge no studies evaluating risk factors to EIPH have been undertaken with such a population of horses in Brazil, which is one of the few countries in the racing community to accept the use of frusemide (FUR) as a prerace medication for bleeders. We also compared national results with those already in the literature. OBJECTIVES: To verify the influence of variables such as distance of the race, racetrack surface, going and season of the year in the recurrence and severity of EIPH and its effect on the finishing position of flat racing Thoroughbreds in Brazil. METHODS: 2118 post race respiratory endoscopies were recorded, in a total of 1003 individual horses. All horses in the study were certified bleeders (deemed positive by registered veterinarians following one or more endoscopies) and were administered FUR prior to each race. Data was analysed using both ordinary logistic regression and multiple logistic regression. RESULTS: The results suggest that race distance, season of the year and racetrack surface affect the recurrence of EIPH. Also, despite the use of FUR, the majority (62%) of horses continued to display some degree of haemorrhage. CONCLUSIONS: There was a tendency for horses that remained positive despite the use of FUR to finish unplaced in a race. Horses which had a significant reduction in bleeding and became HPIE negative after the use of FUR, tended to finish in top positions. It was not possible to determine a pattern of severity of EIPH in horses with more than one endoscopy. Further studies are required to improve our understanding of this syndrome and its correlations to performance in the racing Thoroughbred, together with the role of FUR and its possible enhancing performance effects and efficacy in consistently diminishing EIPH. POTENTIAL RELEVANCE: This study enabled a better understanding of the use of FUR in Brazilian Thoroughbred racehorses and showed there was a tendency towards improvement in performance after administrion of FUR in bleeders. The fact that a large number of horses remained positive for EIPH despite the use of FUR should encourage the scientific community to search for better ways of reducing, or preventing, this syndrome.
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Hemorragia/veterinária , Doenças dos Cavalos/epidemiologia , Pneumopatias/veterinária , Condicionamento Físico Animal/efeitos adversos , Animais , Broncoscopia/veterinária , Diuréticos/farmacologia , Feminino , Furosemida/farmacologia , Hemorragia/epidemiologia , Hemorragia/patologia , Doenças dos Cavalos/patologia , Cavalos , Pneumopatias/epidemiologia , Pneumopatias/patologia , Masculino , Recidiva , Fatores de Risco , Estações do Ano , Índice de Gravidade de Doença , Fatores de TempoRESUMO
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