Made available in DSpace on 2016-04-28T20:18:35Z (GMT). No. of bitstreams: 1 Anselmo Silva Ramos.pdf: 9452970 bytes, checksum: 54edbfe5612f83c527cf96b62151498d (MD5) Previous issue date: 2011-01-25 / Based on the premisse that the oral trauma might cause the introduction of bacteria in the bloodstream, this study was developed aiming at investigating the frequency of transitory bacteremia in different dental procedures and the usual in dogs and the risk of infectious endocarditis in these animals. 36 dogs were were evaluated and classified as to the degree of the periodontal disease in six treatments: T1 (n=5) healthy gum/ negative control;T2(n=6) mild gingivitis; T3 (n=6) moderate or severe gingivitis/feeding;T4(n=6)moderate or severe gingivitis / toothbrushing t5(n=6)moerate or severe periodontitis/ removal of subgum plaque ;T5(n=7) severe periodonctis / exodontia. Blood samples for hemogram and hemoculture were obtained before the procedures, and two for hemoculture with thirty-minute breaks after the procedures. The hemoculture was performed in triphasic hemobac and the hemograms in electronic counter. After that, the animals were sumitted to cardiac assessment by ultrasound tests. A great accumulation of plaque was observed in animals of different ages especially in the upper molar and premolar teeth. The hemogram revealed values indicative of ANN, normal leucometria and trombocitopenia in all groups. There were 22 % of positive hemocultures beforem, 32,2% immediately after and 30 minutes after the procedures with mostly Staphylococcus sp and Streptococcus sp .In the ultrasound tests there were no alterations indicative of proliferative vegetative lesions. The diameters of the atria and ventricles were smaller in the animals with periodontitis. The cardiac debt was also smaller in these animals. The thickness of the walls of the ventricles were smaller in the healthy animals. The average mitral thickness did not significantly vary in the healthy animals and the ones with PD. The average values were compatible with endocardiosis (3,39 +_ 0,71) in 31 animals. The two represent the measurement of the diameter of the root of the Aorta out of the limits and the relation LV/AO made cardiopathy evident in at least 15 animals. The cardiac debt was smaller in the animals with PD within the group of weight associated with other parameters of the ventricular function suggest a PD effect on the cardiocirculatory activity. / Com base na premissa de que o trauma oral pode provocar a introdu??o de bact?rias na corrente sangu?nea, este estudo foi desenvolvido com a finalidade de investigar a freq??ncia de bacteremia transit?ria em diferentes procedimentos odontol?gicos e usuais em c?es e o risco de endocardite infecciosa nesses animais. Foram avaliados 36 c?es classificados quanto ao grau da doen?a periodontal em seis tratamentos: T1 (n=5) gengivas saud?veis / Controle negativo; T2 (n=6) - gengivite leve; T 3 (n= 6) gengivite moderada ou grave / alimenta??o; T 4 (n= 6) gengivite moderada ou grave / escova??o; T 5 (n=6) - periodontite moderada ou grave / remo??o da placa subgengival; T6 (n=7) periodontite grave / exodontia. Amostras de sangue para hemograma e hemocultura foram obtidas antes dos procedimentos, e duas para hemocultura com intervalos de 30 minutos ap?s os procedimentos. A hemocultura foi realizada em Hemobac trif?sico e os hemogramas em contador eletr?nico. Ap?s, os animais foram submetidos ? avalia??o card?aca pela ecocardiografia. Em animais de diferentes idades foi observado grande ac?mulo de placa, sobretudo nos pr?-molares e molares superiores. O hemograma revelou valores indicativos de ANN, leucometria normal e trombocitopenia em todos os grupos. Obteve-se 22% de hemoculturas positivas antes, 32,2% imediatamente e 30 minutos ap?s os procedimentos com predom?nio de Staphylococcus sp e Streptococos sp. Na avalia??o ultrassonogr?fica n?o foram evidenciadas altera??es indicativas de les?es proliferativas vegetativas. Os di?metros dos ?trios e ventr?culos foram menores nos animais com periodontite. Tamb?m o d?bito card?aco foi menor nesses animais. A espessura da parede do ventr?culo foi menor nos animais sadios. A espessura m?dia da mitral n?o variou significativamente entre animais sadios e com DP. Os valores m?dios foram compat?veis com endocardiose (3,39 ? 0,71) em 31 animais. Dois apresentaram a mensura??o do di?metro da raiz da aorta fora dos limites e a rela??o VE/AO evidenciou cardiopatia em pelo menos 15 animais. O d?bito card?aco menor em animais com DP na mesma faixa de peso em associa??o com outros par?metros da fun??o ventricular sugere um efeito da DP sobre a atividade cardiocirculat?ria.