possible Asherman's Syndr,recurrent miscarriages

שלום I have a history of recurrent miscarriages-4, and possible Asherman's syndrome. The very first time I got pregnant, I had a termination, but after the D&C I had infection and hemorrhage , followed by 1 1/2 years of amenorrhea. After, with no treatment, I started again to get regular periods, but I have since than 4 missed miscarriages. I was sent for a diagnosis hysteroscopy and I would like to know if you undertake this type of intervention.If so, please tell me is it more recommended a HSG or hysteroscopy? Many thanks and respect, Kind regards, Maya