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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Fechamento do coto distal do colon sigmoide comparando sutura Manual contÃnua com lacre plÃstico. Estudo experimental em cÃes / Closure of the distal sigmoid stump comparing running suture and zip-tie closure. Experimental study in dogs

Carlos Renato Sales Bezerra 25 June 2010 (has links)
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / Este estudo experimental verificou a eficÃcia do uso de um lacre plÃstico no fechamento do coto distal do cÃlon sigmÃide comparando com sutura manual em plano Ãnico, contÃnuo e extramucoso utilizando fio de polipropileno. Foram utilizados 30 animais (Canis familiaris) fÃmeas, pesando entre 8,0 e 18,0 kg, clinicamente sadios, oriundos do canil da Prefeitura Municipal de Teresina, PiauÃ. Foram distribuÃdos em dois grupos de 15 animais; submetidos a laparotomia com secÃÃo do cÃlon sigmÃide, com fechamento do coto distal com sutura cotÃnua e extramucosa com fio de polipropileno ( Grupo I â Controle) e fechamento do coto distal com lacre plÃstico ( Grupo II- Estudo ). Todos os animais de ambos os grupos foram submetidos à anastomose colo-retal, tÃrmino lateral e avaliados no trans e pÃs-operatÃrio imediato por mÃdico veterinÃrio, sendo a alimentaÃÃo à base de raÃÃo padrÃo e Ãgua, ad libitum, instituÃda quando se observou evacuaÃÃo. Todos os animais foram submetidos à eutanÃsia no 21 DPO apÃs anestesia venosa com Cloridrato de Cetamina e aplicaÃÃo de cloreto de potÃssio 20% via endovenosa ; realizou-se nova laparotomia e avaliaÃÃo da anastomose colo-retal, correspondendo o cÃto distal do sigmÃide ,este segmento foi submetido a teste de rompimento de sutura. Estatisticamente foi realizado teste estatÃstico de VariÃncia aplicando-se o Teste SNK e confirmado com teste Qui-quadrado. Durante realizaÃÃo do teste de tensÃo, ocorreu rompimento do fechamento do coto cÃlico distal em quatro animais de cada grupo, nÃo havendo diferenÃa significativa entre os grupos (p>0.05). O tempo operatÃrio mÃdio foi 27,7 min. E 24,7 min., nos Grupos I e II respectivamente, nÃo havendo diferenÃa estatisticamente significante entre os dois grupos (p=0,09). A pressÃo mÃdia de ruptura foi 145,0mmHg e 195,0mmHg nos Grupos I e II respectivamente, nÃo havendo diferenÃa estatisticamente significante entre eles (p=0,057). O fechamento do cÃlon distal com lacre apresentou a mesma seguranÃa e eficÃcia do fechamento com fio polipropileno 3-0. / The objective of this experimental study was to compare the efficacy of two techniques of distal sigmoid stump closure: plastic zip-tie versus manual, running extramucosal single-layer suture with polypropylene thread. The study included 30 clinically healthy female dogs (Canis familiaris) weighing 8−18 kg supplied by the local municipal dog pound (Teresina, PiauÃ). The animals were distributed in two groups of 15 animals each and submitted to laparotomy, colon resection and closure of the distal sigmoid stump with either running extramucosal suture using 3-0 propylene thread (Group I) or a plastic zip-tie (Group II). All animals were submitted to latero-terminal colorectal anastomosis and were evaluated transoperatively and immediately after surgery by a veterinarian. Standard chow and water was provided ad libitum once evacuation had been observed. On the 21st postoperative day the animals were anesthetized with Cloridrate Cetamina i.v. and euthanized with 20% potassium chloride i.v. A second laparotomy was performed to evaluate the colorectal anastomosis and submit the sigmoid stump to a wound disruption test. Findings were submitted to variance analysis, followed by the Student-Newman-Keuls test and the Chi-square test for confirmation. Wound disruption occurred in four animals from each group, with no statistically significant difference between the groups (p>0.05). The average time of surgery was 27.7 min (Group I) and 24.7 min (Group II), with no statistically significant difference between the groups (p=0.09). The average disruption pressure was 145.0 mmHg (Group I) and 195.0 mmHg (Group II), with no statistically significant difference between the groups (p=0.057). Closure of the sigmoid stump may be as safely performed with plastic zip-tie as with conventional continuous suture using 3-0 polypropylene thread.

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