The Journal of Obstetrics and Gynaecology of India
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VOL. 74 NUMBER 1 January-February  2024

Efficacy of Ethanol Sclerotherapy Versus Laparoscopic Excision in the Treatment of Ovarian Endometrioma

Samaneh Mohtashami1 · Masoome Jabarpour2 · Ashraf Aleyasin1,3 · Marzieh Aghahosseini1,3 · Ayda Najafian1,3

Samaneh Mohtashami, MD, Gynecologist; Masoome Jabarpour, Phd, Embryologist; Ashraf Aleyasin, MD, Gynecologist, Infertility Fellowship, Professor; Marzieh Aghahosseini, MD, Gynecologist, Infertility Fellowship, Professor; Ayda Najafian, MD, Gynecologist, Infertility Fellowship, Assistant Professor.

Ayda Najafian

anajafian@sina.tums.ac.ir

1 Department of Obstetrics and Gynecology, Shariati Hospital, Tehran University of Medical Sciences, Jalal‑E‑Al‑E‑Ahmad Hwy, Tehran 1411713135, Iran

2 Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

3 Department of Infertility, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran

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Objective The purpose of this study was to examine the recurrence rates of ovarian endometrioma, dysmenorrhea, dyspareunia, and related complications between sclerotherapy and laparoscopic ovarian cystectomy in individuals aged 25 to 38.

Methods Eighty-eight women participated in this retrospective, single-center study between January 2020 and February 2022. Patients received either laparoscopy or sclerotherapy, depending on the opinion of the pertinent physician. In this study, the following parameters were retrospectively analyzed in follow-up visits 2, 6 and 12 months after sclerotherapy and laparoscopy: dysmenorrhea and dyspareunia by visual analog scale, complications following the intervention, and serial pelvic sonograms for endometrioma cyst recurrence. Moreover, serum Anti-Müllerian hormone (AMH) level before and 6 months after sclerotherapy/surgery were analyzed. The collected data were then analyzed using R software.

Results The results demonstrate the efficiency of both sclerotherapy and laparoscopic techniques in reducing endometrioma- related dysmenorrhea and dyspareunia over a 12-month period. There was no statistically significant difference in the occurrence of complications and recurrence rate between these two therapies, and both are equally beneficial. Also, the rate of AMH decline after laparoscopy was higher than sclerotherapy; however there was not a statistically significant change in serum level of AMH in laparoscopy compared to the sclerotherapy after 6 months.

Conclusion Considering all the data, it appears that sclerotherapy, with its lower cost, shorter hospital stay, and quicker return to activities, can be a laparoscopic alternative to endometrioma cyst removal. More studies are required.

Keywords : Endometrioma · Sclerotherapy · Laparoscopy · Dysmenorrhea · Dyspareunia

Endometriosis is a prevalent disorder that affects around 10 percent of women in the reproductive age group all over the world. During this condition, endometrial tissue is present outside the uterus in places such as the ovaries, peritoneum, and intestines [1]. Chronic pelvic pain and infertility are connected with this condition. The most frequently mentioned symptoms are dysmenorrhea and dyspareunia [2]. Endometriosis patients who also have ovarian endometrioma (OMA) make up 17 to 44% of all patients with endometriosis [3]. According to the updated American Society for Reproductive Medicine (ASRM) classification, OMAs are found in patients with advanced disease stages [4]; nonetheless, their cause and management remain controversial. Regardless of its size, endometrioma can cause ovarian injury by mechanical straining. As it contains inflammatory factors, proteolytic enzymes, and degrading agents, its substance induces metaplasia and fibrosis and lowers the number of cortical-specific

stromal cells [4, 5]. Despite the considerable frequency of endometriosis, gynecologists have always debated a treatment that could increase fertility, relieve pain, and prevent the disease's recurrence. Laparoscopic cystectomy is the treatment of choice for endometriomas, with documented recurrence rates ranging from 5 to 66.7% [6]. However, the loss of neighboring healthy ovarian tissue by ovarian cystectomy may result in a diminished ovarian reserve[7]. It's also been found that 2.6% of women experience premature ovarian failure and menopause after undergoing bilateral ovarian cystectomy (to remove an endometrioma)[8]. Other less invasive methods must be developed in order to avoid postoperative complications and minimize the impact on fertility. Ethanol sclerotherapy [9] is an alternate method for preserving ovarian reserve. Sclerotherapy with ethanol has been used in various organs for a long (such as thyroid, liver, kidney, and spleen). In 1988, Akamatsu et al. used ethanol to treat endometriomas for the first time [10]. This minimally invasive method removed the cyst by disrupting the epithelial lining of the cyst, resulting in inflammation and fibrosis [11]. Sclerotherapy following aspiration was found to be more effective than aspiration alone in terms of recurrence (8 to 14.9 percent and 83.3 percent, respectively) [12, 13]. The reported recurrence rates following sclerotherapy, after 12 to 24 months of follow-up, vary from 0 to 62.5%, depending on the procedure employed [10, 14, 15]. This conservative approach may be effective in alleviating symptoms while also saving money. Endometriosis is accompanied by dysmenorrhea, dyspareunia, pelvic pain, and infertility. Endometriosis is the most prevalent cause of secondary dysmenorrhea, which has a detrimental influence on an individual's quality of life and productivity. Endometriosis-related dysmenorrhea is treated with antiinflammatory drugs, GnRH agonists, danazol, and surgery.

Each strategy offers benefits and drawbacks that can be utilized based on the patient's situation [16]. The purpose of this retrospective study was to investigate the degree of pain (dysmenorrheal and dyspareunia), the rate of recurrence of OMA, serum AMH level and related complications following sclerotherapy vs. laparoscopic ovarian cystectomy in patients aged 25–38 years.

Declarations
Conflict of interest
The authors declare that they have no conflicts of interest.

Consent for Publication Not applicable.

Ethics Approval and Consent to Participate The Ethics Committee of Tehran University of Medical Sciences approved this retrospective study, and the ethical approval code was IR.TUMS.MEDICINE REC.1401.048. Informed consent was obtained from all individual participants included in the study.

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