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Treatment of Endometriosis with Local Acetylsalicylic Acid Injection: Experimental Study in Rabbits
Universidade Estadual Paulista (UNESP)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
The objective of the present study was to estimate the effects of introduction of acetylsalicylic acid solution into peritoneal implants in autologous endometrium as a method for treating endometriosis. Forty adult female rabbits were subdivided into 4 groups of 10 rabbits each, and endometriosis was induced via autotransplantation of endometrial fragments into the peritoneal cavity. At 30 days after induction of endometriosis, all animals were randomly assigned to 1 of 2 protocols. In protocol 1, animals were evaluated at 24 hours after treatment; group 1 (control) received physiologic solution, and group 2 received acetylsalicylic acid. In protocol 2, animals were evaluated at 10 days after treatment, group 3 (control) and group 4 received acetylsalicylic acid. After measuring the lesion, the endometriotic focus was removed and prepared for mounting on slides for histologic analysis. Imaging software was used for analysis of the total remaining area of endometrial tissue. The affected area in acetylsalicylic acid treated animals was smaller than that in control animals at 24 hours and 10 days after treatment; a significant difference was found between control and treated groups (p < .001). Statistical analysis comparing protocols 1 and 2 demonstrated no differences between controls groups or acetylsalicylic acid groups (p = .30), and no differences between times (p = .75). Acetylsalicylic acid solution led to less growth (or higher involution) of endometrial implants. Acetylsalicylic acid injected directly into endometriotic foci was effective in their destruction. This presents new perspectives for treatment of endometriosis and for clinical applications based on further clinical studies. Journal of Minimally Invasive Gynecology (2011) 18, 800-806 (C) 2011 AAGL. All rights reserved.
Issue Date: 
Journal of Minimally Invasive Gynecology. New York: Elsevier B.V., v. 18, n. 6, p. 800-806, 2011.
Time Duration: 
Elsevier B.V.
  • Acetylsalicylic acid
  • Endometriosis
  • Experimental treatment
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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