I have to admit that the failure rate is higher for women with adenomyosis. The problem is we don't know which comes first - adenomyosis or the endometrial ablation. In our country, they quite often will mandate an ablation technique before moving on to hysterectomy, even when the ablation technique may not be the appropriate choice for that patient. We're lucky that it's dictated to us on what to do, so everything is based on medical decision or indication. We have been using a lot of Cyklokapron in the past two or three years trying to decrease the amount of surgery but most of them still come back for another procedure.
Some people use danazol or birth control pills.
My favorite is GnRH analogue, but five weeks before a procedure. Some other people will use suction curettage before endometrial ablation, especially microwave - apparently the results are the same. They did not have the analogue available, and they found that the suction was adequate preparation. We've used GnRH analogues in our practice, mostly, and have been very pleased with the results of that. He did not ablate the posterior wall.