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1.
J. coloproctol. (Rio J., Impr.) ; 34(4): 193-197, Oct-Dec/2014. graf, ilus
Article in English | LILACS | ID: lil-732578

ABSTRACT

Objective: The purpose of this experimental study was to compare the inflammatory and wound healing response of dogs submitted to colonic anastomosis with and without preoperative retrograde enema. Methods: The study included two groups of 31 female dogs (Canis familiaris). G-I (control): no preoperative bowel preparation; G-II (study): preoperative retrograde enema using a 10% glycerin solution. All the animals were submitted to laparotomy and colotomy at 20 cm from the anal verge, followed by closure with a running extramucosal single-layer suture (Prolene® 000). The animals were then anesthetized and euthanized on the 7th (n = 10) or 21st (n = 20) postoperative day (POD) to remove the anastomosed colon segment for histological and immunohistochemical analysis evaluating the parameters: anastomotic edema, vasoproliferation, abdominal adhesions, type I and III collagen, nitric oxide and myeloperoxidase. The observed differences were analyzed with the Mann-Whitney test for nonparametric data and Student's t test for unpaired samples and parametric data. Results: One animal from G-I and one from G-II died on POD 7 and POD 10 due to anastomotic complications and sepsis, respectively The groups did not differ significantly with regard to inflammatory and healing parameters, although the levels of mature collagen were significantly lower in the animals submitted to preoperative bowel preparation. Conclusion: It has been shown that both procedures are safe to be used, however, the group with bowel preparation showed a lower amount of mature collagen in the immediate postoperative period and may be constituted a preventive factor for surgical complications for this type of surgical procedure, although no evidence in this study could be determined. (AU)


Objetivo: O objetivo deste estudo experimental foi comparar a resposta inflamatória e cicatrização de feridas em cães submetidos a anastomose cólica com e sem enema retrógrada pré-operatório. Métodos: O estudo incluiu dois grupos de 31 cães fêmeas (Canis familiaris). G-I (controle): sem preparo intestinal pré-operatório; G-II (estudo): Enema retrógrada pré-operatória com uma solução de glicerina a 10%. Todos os animais foram submetidos à laparotomia e colotomia a 20 cm da borda anal, seguido de fechamento em sutura extramucosa contínua (Prolene ® 000). Os animais foram anestesiados e, em seguida, submetidos à eutanásia no 7° (n = 10) ou 21 (n = 20) pós-operatório (DPO) para remover o segmento de cólon anastomosado para análise histológica e imunohistoquímica avaliando os parâmetros: edema da anastomose, vasoproliferação, aderências abdominais, colagénio tipo I e III, o óxido nítrico e a mieloperoxidase. As diferenças observadas foram analisadas com o teste de Mann-Whitney para os dados não paramétricos e teste t de Student para amostras não pareadas e dados paramétricos. Resultados: Um animal do GI e um do G-II morreu no dia 7 e 10° DPO devido a complições de anastomose e sepse, respectivamente. Os grupos não diferiram significativamente em relação aos parâmetros inflamatórios e de cura, embora os níveis de colágeno maduro foram significativamente menores nos animais submetidos ao preparo intestinal pré-operatório. Conclusão: Demonstrou-se que ambos os procedimentos são seguros para serem usados, no entanto, o grupo com a preparação do intestino mostrou uma menor quantidade de colágeno maduro no período pós-operatório imediato, podendo ser constituído um fator preventivo para compliçães cirúrgicas para este tipo de procedimento cirúrgico, embora nenhuma evidência neste estudo. (AU)


Subject(s)
Animals , Female , Dogs , Wound Healing , Anastomosis, Surgical , Colon/surgery , Inflammation/rehabilitation , Postoperative Period , Enema
2.
Braz. j. med. biol. res ; 28(4): 433-8, Apr. 1995. tab, graf
Article in English | LILACS | ID: lil-154844

ABSTRACT

Nocturnal urinary growth hormone (U-hGH) levels measured by a sensitive immunoenzymometric assay were compared with hGH levels in serum before and after a clonidine test in healthy children and in children with short stature to determine whether U-hGH measurement is useful for the screening of hGH deficiency. The study was carried out on 19 healthy children (10 prepubertal and 9 pubertal subjects) and on 20 children with short stature, 10 with growth hormone deficiency (hGHD) and 10 with constitutional growth retardation. The diagnosis of hGHD was based on a blunted response to two provocative hGH tests in the appropriate clinical setting. Overnight urinary hGH secretion (mean of 3 collections) was measured by an immunoenzymometric assay. The best discrimination was obtained when the results were expressed as ng/h. Only one individual in the prepubertal group (U-hGH, 0.05 ng/h) and one patient in the growth retardation group (U-hGH, 0.08 ng/h) had a urinary hGH value below the highest value (0.17 ng/h) observed in the growth hormone deficiency group. The coefficient of correlation between urinary hGH in ng/h and post-clonidine peak was 0.50 (P = 0.0015), between urinary hGH in ng/l and post-clonidine peak was 0.48 (P = 0.0025), between urinary hGH in ng/l per hour and post-clonidine peak was 0.47 (P = 0.0027). The highest specificity (0.93), sensitivity (0.90), false negative rate (0.96) and false positive rate (0.82) were obtained when U-hGH was expressed as ng/h per night. Measurement of urinary nocturnal hGH excretion is a useful, simple, noninvasive method for the diagnosis of hGH deficiency. However, the day-to-day variability and wide normal range limit its usefulness in mild forms of hGH insufficiency


Subject(s)
Humans , Male , Female , Child , Adolescent , Circadian Rhythm , Growth Hormone/deficiency , Growth Hormone/urine , Age Determination by Skeleton , Body Height , Body Mass Index , Clonidine , Growth Disorders , Growth Hormone/blood , Predictive Value of Tests , Puberty , Sensitivity and Specificity
3.
Arq. bras. med. vet. zootec ; 45(4): 369-74, ago. 1993.
Article in Portuguese | LILACS | ID: lil-240139

ABSTRACT

O desempenho da técnica de esfregaço de fragmento de coágulo de sangue, com as coloraçöes de Giemsa diluído e puro, é avaliado em relaçäo à apresentaçäo dos elementos figurados e na determinaçäo de parasitemia por Babesia bovis, B. bigemina e Anaplasma marginale. Utilizou-se um bovino, seis meses de idade e inoculado com os agentes da tristeza parasitária bovina como doador das amostras de coágulo. A técnica mostrou-se adequada ao diagnóstico dos parasitos, com restriçöes à observaçäo de eritrócitos e leucócitos


Subject(s)
Animals , Anaplasmosis/diagnosis , Azure Stains , Babesiosis/diagnosis , Cattle
4.
Braz. j. vet. res. anim. sci ; 29(supl): 390-3, 1992. tab
Article in Portuguese | LILACS | ID: lil-239984

ABSTRACT

O desempenho da técnica de distensäo de Gota do Coágulo de sangue, entre as coloraçöes de Giemsa diluído e puro, é avaliado em relaçäo à possibilidade de observaçäo dos elementos figurados e da presença de Babesia bovis, Babesia bigemina e Anaplasma marginale. Utilizou-se um bovino, com 6 meses de idade inoculado com os agentes da Tristeza Parasitária, como doador das amostras de sangue. A técnica permitiu a observaçäo dos eritrócitos, leucócitos e dos hemoparasitas


Subject(s)
Animals , Anaplasma/isolation & purification , Azure Stains , Babesiosis/diagnosis , Cattle Diseases , Cattle/blood , Cattle/parasitology
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