TY - JOUR
T1 - Correlation between bursting pressure and breaking strength in colonic anastomosis
AU - Durães, Leonardo de Castro
AU - Durães, Eliana Ferreira Ribeiro
AU - Lobato, Luiz Felipe de Campos
AU - Oliveira, Paulo Gonçalves de
AU - Sousa, João Batista de
PY - 2013/6
Y1 - 2013/6
N2 - PURPOSE: To investigate the correlation between bursting pressure and breaking strength on the 7th postoperative day following left colonic anastomosis in rats. METHODS: Seventy rats were randomly divided into seven groups of ten animals each. All of the animals underwent segmental resection of the left colon and end-to-end anastomosis. The animals in groups I to VI underwent surgical laparoscopies with pneumoperitoneums using carbon dioxide or helium at pressures of 5, 12 or 20 mmHg. In Group VII, open laparotomy was performed. The animals were reoperated on postoperative day 7 to measure the bursting pressure and the breaking strength of the anastomosis. RESULTS: The anastomosis bursting pressure in 70 animals was 193.10±55.56 mmHg. There was no signifcant difference between the groups (p=0.786). The breaking strength of the anastomosis was 0.26±0.12 N. There was no signifcant difference between the groups (p=0.356). Pearson's correlation test showed a low correlation (r=0.231) lacking statistical signifcance (p=0.054). CONCLUSION: There was no correlation between the bursting pressure and breaking strength of left colonic anastomoses in rats on the 7th postoperative day.
AB - PURPOSE: To investigate the correlation between bursting pressure and breaking strength on the 7th postoperative day following left colonic anastomosis in rats. METHODS: Seventy rats were randomly divided into seven groups of ten animals each. All of the animals underwent segmental resection of the left colon and end-to-end anastomosis. The animals in groups I to VI underwent surgical laparoscopies with pneumoperitoneums using carbon dioxide or helium at pressures of 5, 12 or 20 mmHg. In Group VII, open laparotomy was performed. The animals were reoperated on postoperative day 7 to measure the bursting pressure and the breaking strength of the anastomosis. RESULTS: The anastomosis bursting pressure in 70 animals was 193.10±55.56 mmHg. There was no signifcant difference between the groups (p=0.786). The breaking strength of the anastomosis was 0.26±0.12 N. There was no signifcant difference between the groups (p=0.356). Pearson's correlation test showed a low correlation (r=0.231) lacking statistical signifcance (p=0.054). CONCLUSION: There was no correlation between the bursting pressure and breaking strength of left colonic anastomoses in rats on the 7th postoperative day.
KW - Anastomosis
KW - Colon
KW - Pressure
KW - Rats
KW - Surgical
KW - Tensile strength
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U2 - 10.1590/S0102-86502013000600008
DO - 10.1590/S0102-86502013000600008
M3 - Article
C2 - 23743683
AN - SCOPUS:84878798013
SN - 0102-8650
VL - 28
SP - 447
EP - 452
JO - Acta cirurgica brasileira
JF - Acta cirurgica brasileira
IS - 6
ER -