Results of clinical applications of NOTES in the IMTN Study showed the feasibility of different methods of this new minimally invasive alternative for laparoscopic and open surgery.
Background: To review women with symptomatic and clinically progressive endometriosis after menopause in the absence of estrogen intake or excessive systemic endogenous production.Design: Seven case reports and a systematic review of the literature from 1995 till February 2018. Results: Only 7 case reports from the authors and 29 cases from the literature described women with either cystic ovarian or deep endometriosis. Severity, symptoms, and localization are highly variable. No case report describes symptomatic superficial typical lesions. In 22 of 36 women (61%), symptoms started more than 10 years after menopause. Conclusions: Symptomatic and clinically progressive endometriosis after menopause in the absence of increased systemic estrogen concentrations or exogenous estrogen intake starts more than 10 years after menopause in the majority of women. This observation suggests that a genetic and/or epigenetic incident caused estrogen-independent progression, increased sensitivity to estrogens or increased local production of estrogens. This observation is important for understanding the pathophysiology of endometriosis, for the management of postmenopausal endometriosis, and for individualization of medical therapy of endometriosis since estrogen-independent endometriosis growth probably also occurs before menopause.
Background
Laparoscopic cystectomy is currently considered the gold standard for the treatment of ovarian endometrioma, resulting in an improvement in symptoms, a lower recurrence rate, and a higher pregnancy rate among infertile patients. However, this treatment is not free from risk, since it is associated with a reduction in ovarian reserve. There is still controversy in the literature regarding whether the cause of the reduction in ovarian reserve is due to damage caused by the coagulation energy during hemostasis or whether the procedure itself is the cause of the damage irrespective of the hemostatic method used. The aim of this study is to compare the effects of different hemostatic methods on the ovarian function of women subjected to laparoscopic surgery for ovarian endometrioma.
Methods
An open-label randomized clinical trial to be conducted at the Lauro Wanderley University Hospital between December 2017 and August 2020. Eighty-four patients will be randomly allocated to three groups according to the hemostatic technique used during laparoscopic surgery for ovarian endometrioma: bipolar coagulation; laparoscopic suture; and hemostatic matrix. Ovarian function will be assessed by serum anti-Müllerian hormone measurement and by performing an antral follicle count using ultrasound before surgery and one, three, and six months after surgery. The internal review board of the Medical Sciences Center, Federal University of Paraíba approved the study protocol under reference CAAE 71621717.9.0000.8069.
Discussion
Bearing in mind the need for more randomized clinical trials to clarify this issue, we hope to contribute with data that will determine whether there is any difference between hemostatic methods despite the rational use of bipolar energy or whether the procedure itself explains the ovarian damage irrespective of the hemostatic technique used.
Trial registration
ClinicalTrials.gov,
NTC03430609
. Registered on XX.10/31/2017.
ISRCTN Registry,
ISRCTN11469394
. Registered on XX.17/12/2017.
Unique Protocol ID: U1111–1203-2508.
Objective
To compare the effect of hemostatic techniques (bipolar energy versus hemostatic sealants versus suture) on the ovarian reserve of patients submitted to laparoscopic cystectomy for the surgical excision of unilateral endometrioma.
Methods
A randomized controlled trial conducted in a teaching hospital included 84 patients with unilateral endometrioma. The patients underwent laparoscopic stripping for excision of the unilateral endometrioma between March 2018 and February 2020. Three different hemostatic techniques—bipolar energy (Group 1), hemostatic sealants (Group 2), and suture (Group 3)—were compared. Anti‐Müllerian hormone (AMH) levels were measured before, and 1 and 6 months after surgery to determine changes in ovarian function.
Results
Following surgery, AMH levels decreased in all the groups; however, this decrease was not statistically significant. Comparison between groups showed no statistically significant differences in AMH levels between the three hemostatic techniques used. Six months after surgery, median AMH levels were: 1.65 ng/mL (interquartile range [IQR] 0.62–2.08 ng/mL) in Group 1, 1.87 ng/mL (IQR 1.27–2.97 ng/mL) in Group 2, and 1.53 ng/mL (IQR 1.18–2.44 ng/mL) in Group 3.
Conclusion
The present study suggests that there is no difference between the different hemostatic techniques used in laparoscopic cystectomy for the treatment of unilateral endometriomas.
Registered at ClinicalTrials.gov: NCT03430609.
https://clinicaltrials.gov/ct2/show/NCT03430609
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