IRCT20090526001952N14 IRCT 2021-02-17 Tehran University of Medical Sciences Assessment of pregnancy rate by laparoscopic ovarian cautery in patients with poly cystic ovary syndrome and Previous failed IVF procedures Assessment of infertility treatment success by laparoscopic ovarian cautery in patients with poly cystic ovary syndrome and Previous failed IVF procedures referred to infertility clinic of Arash women hospital: a clinical trial 2016-12-04 anticipated 34 Complete https://irct.ir/trial/1541 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The randomization method is on the basis of a block randomization list which is designed by an epidemiologist colleague using the Stata software (LLC StataCorp, USA) version 13 and a block size of 6. The random allocation process is concealed by providing 34 consecutive treatment cards that is placed in sealed envelopes. A random 10-digit code is written without sequence and frame on each envelope. This relevant code is patient’s identification number, and just the project methodologist has known that this code is related to which treatment group. When the doctor announces that a patient is eligible, the methodologist has provided the doctor with an envelope design and the desired treatment is selected based on the type mentioned in the envelope. The outcome’s evaluator also is considered of a third party person who is unaware of the type of treatment performed. The data analysis is performed by a statistician who is unaware of all the study‘s processes. N/A infertility. Intervention 1: Intervention group: Laparoscopic ovarian drilling is performed using 40-watt bipolar current at 4-6 points of the ovaries for patients and a month later undergo in vitro fertilization (IVF) cycle with ovarian stimulation using an antagonist protocol. Intervention 2: Control group: In this group, patients without laparoscopic ovarian drilling are treated only for in-vitro fertilization (IVF) cycle with ovarian stimulation using antagonist protocol. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is not a plan to make this available