Objective: To explore whether operation can change the elasticity of levator ani in deep infiltrating endometriosis (DIE) with operation and pharmacotherapy using transperineal elastography.
Methods: Total thirty-four patients who were diagnosed as DIE were included in the study. Transperineal elastography were performed in all cases preoperatively and postoperatively. The levator ani was evaluated by means of the scoring system and strain ratio (SR) values on maximal Valsalva and quiescent condition, respectively.
Results: On quiescent condition, the preoperative mean elastography scores and SR of the levator ani were statistically significantly higher than the postoperative ones in both shaving technique group and segmental colorectal resection group. And on maximal Valsalva, the preoperative mean elastography scores and SR of the levator ani were statistically significantly lower than the postoperative ones in both groups. After surgery and 6 cycles of GnRHa therapy, the mean elastography score and SR of the levator ani were statistically significantly lower than before GnRHa therapy in shaving technique group on quiescent condition. And on maximal Valsalva, the mean elastography score and SR were statistically higher than before GnRHa therapy. However, in segmental colorectal resection group, the differences were not observed before and following 6 cycles of GnRHa therapy.
Conclusion: The elasticity of levator ani of DIE was changed by both shaving technique and segmental colorectal resection. And transperineal elastography could access the alterations.
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