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Effects of pneumoperitoneum with or without colostomy on rat colonic anastomotic healing
Author(s) -
Özgün Hedef,
Boylu Sükrü,
Çevikel Mehmet H.,
Yenisey Çigdem,
Erpek Hakan,
Çulhaci Nil,
Demirkiran Ahmet E.
Publication year - 2004
Publication title -
anz journal of surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 70
eISSN - 1445-2197
pISSN - 1445-1433
DOI - 10.1046/j.1445-1433.2003.02918.x
Subject(s) - pneumoperitoneum , medicine , hydroxyproline , anastomosis , colostomy , wound healing , nitric oxide , surgery , gastroenterology , anesthesia , laparoscopy
Background: Elevated intra‐abdominal pressure and colostomy have adverse effects on colonic anastomoses. The aim of the present study was to investigate the effects of laparoscopic colon surgery with and without diverting colostomy on healing of colonic anastomoses in an experimental model. Methods: Thirty‐six male rats were divided into three equal groups: group 1, control (colonic anastomosis and anaesthesia for 180 min only); group 2, 180 min pneumoperitoneum and colonic anastomosis; and group 3, similar to group 2 with a proximal colostomy. On day 7, bursting pressures, tissue hydroxyproline and nitric oxide concentrations and histopathological inflammation scores were determined and compared. Results: Mean bursting pressures were higher in the control group than the two pneumoperitoneum groups ( P = 0.0003). Mean tissue hydroxyproline concentrations showed no difference ( P > 0.05). Mean tissue nitric oxide concentrations were significantly increased in the control group ( P = 0.0013). Histopathological scores demonstrated increased inflammatory response in group 3 compared to the controls ( P = 0.0009). Conclusion: Pneumoperitoneum delays collagen maturation and impairs anastomotic strength in the colon. Following pneumoperitoneum, performance of a diverting loop colostomy to protect the anastomosis will not have additional detrimental effects on anastomotic healing.