About this trial
We will conduct this study to estimate the effect of laparoscopic cystectomy on ovarian reserve in endometriotic cysts versus non-endometriotic cysts.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Female patients aged 18-45 years
Ovarian cyst measuring 6-15 cm in diameter, confirmed by transvaginal ultrasound or MRI
Cyst is persistent for more than 3 months if asymptomatic, OR any symptomatic cyst regardless of duration of diagnosis
Serum anti-Müllerian hormone (AMH) level ≥ 2 ng/mL, measured within 1 month preoperatively
Disqualifiers
Clinical or ultrasonic suspicion of ovarian malignancy
Ovarian cyst associated with pregnancy
Previous history of ovarian surgery
History of pelvic irradiation or chemotherapy
Trial design
Parallel
Treatments tested in this trial
Laparoscopic Ovarian Cystectomy
Procedure/SurgeryLaparoscopic excision of ovarian cyst under general anesthesia. The procedure includes: (1) CO₂ pneumoperitoneum creation via Veress needle through a 1-cm umbilical incision until intraabdominal pressure reaches 15 mmHg; (2) insertion of a 10-mm umbilical trocar and telescope; (3) placement of two or more 5-mm ancillary trocars under direct visualization; (4) incision of the ovarian capsule using monopolar scissors; (5) identification and careful dissection of the cyst wall from adjacent ovarian tissue using traction with grasping forceps; (6) hemostasis achieved using electrocoagulation or sutures; (7) plication and approximation of the ovarian incision edges; (8) for endometriosis cases, excision or cauterization of visible endometriotic lesions; (9) histopathological examination of the excised specimen to confirm diagnosis. The procedure is performed in both arms (endometriotic and non-endometriotic cysts) using identical surgical techniques.
Treatment groups
Trial outcomes
Primary outcomes
Absolute Change in Serum Anti-Müllerian Hormone (AMH) Level
The absolute change in serum anti-Müllerian hormone (AMH) level from baseline to 3 months after laparoscopic ovarian cystectomy, calculated as the difference between preoperative AMH value (measured within 1 month before surgery) and postoperative AMH value (measured at 3 months after surgery). Comparison will be made between the endometriotic cyst group and the non-endometriotic cyst group.
Secondary outcomes
Preoperative AMH Cutoff Value Predicting Postoperative AMH ≥ 1 ng/ml
Receiver operating characteristic (ROC) curve analysis to determine the optimal preoperative serum AMH cutoff value that predicts maintenance of serum AMH ≥ 1 ng/ml at 3 months postoperatively. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) will be calculated.
Change in Antral Follicle Count (AFC)
The change in antral follicle count (AFC) from baseline to 3 months after laparoscopic ovarian cystectomy, assessed via transvaginal ultrasound in the early follicular phase (cycle days 2-4). Comparison will be made between endometriotic and non-endometriotic cyst groups.
Change in Serum Follicle-Stimulating Hormone (FSH) Level
The change in serum follicle-stimulating hormone (FSH) level from baseline to 3 months after laparoscopic ovarian cystectomy, measured on cycle days 2-4. Comparison will be made between endometriotic and non-endometriotic cyst groups.
Correlation Between AMH Change and Clinical Variables
Analysis of the correlation between the change in serum AMH level and various clinical variables, including number of cauterizations, cyst size (cm), laterality (unilateral/bilateral), cyst type (endometriotic/non-endometriotic), age (years), and body mass index (BMI, kg/m²). Pearson or Spearman's rank correlation coefficients will be calculated as appropriate.
Other outcomes
Operative Time
Comparison of operative time (minutes) between the endometriotic and non-endometriotic cyst groups. Operative time is defined as the time lapse between insertion of the Veress needle trocar for preparation until the removal of the 10 mm umbilical trocar.
Estimated Intraoperative Blood Loss
Comparison of estimated intraoperative blood loss (mL) between the endometriotic and non-endometriotic cyst groups. Blood loss will be calculated as: (Total weight of wet gauze after surgery in grams - Total weight of dry gauze before surgery in grams) + (Amount of fluid in suction bucket in grams - Weight of flushing fluid used in grams).
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