Journal
FERTILITY AND STERILITY
Volume 102, Issue 4, Pages 1197-1202Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.fertnstert.2014.07.007
Keywords
Adhesions; argon plasma coagulation (APC); monopolar contact coagulation; rat model; peritoneal conditioning
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Objective: To investigate peritoneal adhesion formation of monopolar contact coagulation (MCC) versus noncontact argon plasma coagulation (APC) in a rat model. Design: Randomized, controlled, single-blinded animal study. Setting: University laboratory. Animal(s): Sixteen female Wistar rats. Intervention(s): Bilateral lesions were created on the abdominal wall with MCC and APC in a standard fashion. After 10 days, the rats were euthanized to evaluate the peritoneal trauma sites. Main Outcome Measure(s): Adhesion incidence, quantity, and quality were scored 10 days postoperatively and studied histopathologically. Result(s): Average energy intake was 99.5 +/- 7.39 J for APC and 95.7 +/- 9.62 J for monopolar contact coagulation. Incidence of adhesion formation was 50.0% for noncontact APC and 85.4% for MCC. MCC induced significantly more vascular adhesions. Histological evaluation revealed no significant differences regarding average depth of lesions induced by APC and MCC. Both groups showed almost identical morphology of necrosis and granulation tissue formation. Conclusion(s): This study compares for the first time adhesion formation of MCC versus noncontact APC in a rat model. With a similar energy intake, contact coagulation induced a significantly higher rate of adhesion formation. APC-induced adhesions were significantly less vascularized compared with MCC adhesions. Besides the thermal effects of both coagulation methods, the direct mechanical contact of the MCC electrode with the highly sensitive peritoneum is thus determined to be a pivotal additional stimulus for adhesion formation. (C) 2014 by American Society for Reproductive Medicine.
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