Reccurence of ovarian endometriotic cyst after cystectomy

Hiroko Nakamura, Kiyoko Kato, Souko Uchida, Ryosuke Tsunematsu, Akiko Isobe
In: JAPANESE JOURNAL OF GYNECOLOGIC AND OBSTETRIC ENDOSCOPY · 2009 · vol. 25(2) , pp. 442–446 · doi:10.5180/jsgoe.25.442 · W2319518747
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-08 ⓘ

This retrospective study of 57 patients found that pre-operative medical treatment, not laparoscopic surgery, was associated with a higher recurrence rate of ovarian endometriotic cysts after cystectomy.

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This retrospective study evaluated risk factors for recurrence of ovarian endometriotic cysts after cystectomy in 57 patients with at least 6 months of follow-up, defining recurrence as a post-operative endometriotic cyst >2 cm on transvaginal ultrasonography. Using logistic regression across nine variables (including surgical approach, cyst size and laterality, CA-125, r-ASRM classification, ultrasound findings, and pre- and post-operative medical treatment), the authors found an overall recurrence rate of 17.5% with a cumulative recurrence rate of 32.1% over 60 months. Laparoscopic surgery was associated with a higher recurrence rate than laparotomy (p<0.05), and pre-operative medical treatment was the only statistically significant factor linked to higher recurrence (p=0.02). The study’s main limitation is that, as a retrospective design, it cannot fully control for confounding. This paper is centrally about endometriosis — specifically recurrence of ovarian endometriotic cysts after cystectomy.

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Abstract

Objective: To evaluate risk factors which are associated with recurrence of endometriotic cysts after cystectomy.Method: Fifty-seven patients who had a minimum of 6 months of observation after cystectomies for endometriotic cyst were studied retrospectively. Recurrence was defined as the presence of an endometriotic cyst > 2 cm in size on transvaginal ultrasonogram during the post-operative follow-up period. We evaluated nine variables (age, laparoscopic surgery/laparotomy, size of the largest cyst, laterality, findings of transvaginal ultrasonogram, serum CA-125 levels, revised American Society for Reproductive Medicine [r-ASRM] classification, and pre- and post-operative medical treatment) to assess the effects on the recurrence using logistic regression analysis.Result: The overall rate of recurrence was 17.5% (10/57). The cumulative rate of recurrence over 60 months was 32.1%. Laparoscopic treatment had a higher recurrence rate than laparotomy (p<0.05).The statistically significant factor that was associated with a higher recurrence rate was pre-operative medical treatment (p=0.02).Conclusion: Pre-operative medical treatment of endometriotic cysts is associated with a higher recurrence rate after cystectomy.
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Abstract

Objective: To evaluate risk factors which are associated with recurrence of endometriotic cysts after cystectomy.

Method

Fifty-seven patients who had a minimum of 6 months of observation after cystectomies for endometriotic cyst were studied retrospectively. Recurrence was defined as the presence of an endometriotic cyst > 2 cm in size on transvaginal ultrasonogram during the post-operative follow-up period. We evaluated nine variables (age, laparoscopic surgery/laparotomy, size of the largest cyst, laterality, findings of transvaginal ultrasonogram, serum CA-125 levels, revised American Society for Reproductive Medicine [r-ASRM] classification, and pre- and post-operative medical treatment) to assess the effects on the recurrence using logistic regression analysis.

Result

The overall rate of recurrence was 17.5% (10/57). The cumulative rate of recurrence over 60 months was 32.1%. Laparoscopic treatment had a higher recurrence rate than laparotomy (p<0.05).The statistically significant factor that was associated with a higher recurrence rate was pre-operative medical treatment (p=0.02).

Conclusion

Pre-operative medical treatment of endometriotic cysts is associated with a higher recurrence rate after cystectomy.

Method

Fifty-seven patients who had a minimum of 6 months of observation after cystectomies for endometriotic cyst were studied retrospectively. Recurrence was defined as the presence of an endometriotic cyst > 2 cm in size on transvaginal ultrasonogram during the post-operative follow-up period. We evaluated nine variables (age, laparoscopic surgery/laparotomy, size of the largest cyst, laterality, findings of transvaginal ultrasonogram, serum CA-125 levels, revised American Society for Reproductive Medicine [r-ASRM] classification, and pre- and post-operative medical treatment) to assess the effects on the recurrence using logistic regression analysis.

Result

The overall rate of recurrence was 17.5% (10/57). The cumulative rate of recurrence over 60 months was 32.1%. Laparoscopic treatment had a higher recurrence rate than laparotomy (p<0.05).The statistically significant factor that was associated with a higher recurrence rate was pre-operative medical treatment (p=0.02).

Conclusion

Pre-operative medical treatment of endometriotic cysts is associated with a higher recurrence rate after cystectomy. © 2009 Japan Society of Gynecologic and Obstetric Endoscopy and Minimally Invasive Therapy Favorites & Alerts Recently viewed articles

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