Abstract
BackgroundTo evaluate the impact of the presence of endometrioma and laparoscopic cystectomy on ovarian reserve as assessed by serum anti-Müllerian hormone (AMH) level. In addition, factors related to the decline in ovarian reserve were analyzed.MethodsFrom June 2013 to January 2014, we prospectively included 40 women with endometriomas as the study group (group A), 36 women with tubal factor infertilities as control group 1 (group B) and 22 women with the other benign ovarian cysts as control group 2 (group C). The women with ovarian cysts underwent laparoscopic cystectomy. Serum AMH levels were determined preoperatively and at 1 month after surgery.ResultsThe endometrioma group had lower AMH levels (1.53 ± 1.37 ng/ml) compared with the other benign ovarian cyst group (2.20 ± 1.23 ng/ml) and the tubal factor infertility group (2.82 ± 1.74 ng/ml). The rate of serum AMH decline 1 month after surgery in the endometrioma group (0.62 ± 0.35) was larger than the decline in the other benign ovarian cyst group (0.32 ± 0.30). The preoperative AMH level showed a significant correlation with patient age (group A, r = −0.32; group B, r = −0.54; group C, r = −0.71); there was a statistically significant correlation between the rate of serum AMH decline and endometrioma diameter as well as with the preoperative serum AMH level. In addition, the rate of serum AMH decline was larger for bilateral endometriomas than for unilateral endometriomas, but there was no similar correlation in the other benign ovarian cyst group. The rate of AMH decline after surgery in the subgroup of >7 cm was significantly higher than in the subgroup of ≤7 cm.ConclusionsOvarian endometriomas per se may damage ovarian reserve, and cystectomy of endometriomas may cause greater damage to ovarian reserve compared with other benign ovarian cysts. The operation-related damage to the ovarian reserve was positively related to whether the endometriomas were bilateral, as well as cyst size (especially for cysts >7 cm), but was negatively related to the preoperative serum AMH level. Age was a negative factor that affected the ovarian reserve.
Highlights
To evaluate the impact of the presence of endometrioma and laparoscopic cystectomy on ovarian reserve as assessed by serum anti-Müllerian hormone (AMH) level
Because the rate of serum AMH level decline was correlated with cyst size in the endometrioma group, the receiver operating characteristic (ROC) curve was determined using a serum AMH decline rate of 50% or lower as a cut-off point
Our results showed that the preoperative serum AMH levels in patients
Summary
To evaluate the impact of the presence of endometrioma and laparoscopic cystectomy on ovarian reserve as assessed by serum anti-Müllerian hormone (AMH) level. Laparoscopic excision of endometriomas is regarded as a first-line treatment, but the reduced number of retrieved oocytes for in vitro fertilization and premature ovarian failure after surgery reported in several papers have raised concerns [2,3]. Because endometriosis is most common in reproductive-age women, it is important to predict and protect the patients’ ovarian function. Ovarian reserve is defined as the functional potential of the ovary, and it reflects the number and quality of the follicles left in the ovary at any given time. It is worthwhile and convenient to elucidate changes in ovarian reserve as measured by serum AMH level, which reflects the count of primordial follicles, after ovarian surgery
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