In a separate US prospective study using Thermachoice III, Chapa et al (14) reported evaluable amenorrhea rates of 63% and eumenorrhea
rates of 33% at 24 months in a cohort of 148 women who had not reached menopause.
Patients who avoided hysterectomy reported amenorrhea (47%), hypomenorrhea (30%), and eumenorrhea
(14%) after the thermal global ablation.
At a minimum 6 months' follow-up, 48% of patients achieved amenorrhea, 12% hypomenorrhea, and 2% eumenorrhea
In the current study, women in the three treatment groups rated their post-treatment bleeding on a scale of 1-4 in which 1 is amenorrhea, 2 is hypomenorrhea, 3 is eumenorrhea
, and 4 is menorrhagia.
At 1-year follow-up, of 112 women with abnormal bleeding who underwent hysteroscopy, endometrial sampling, and cryoablation of the endometrium under ultrasound guidance, 54 reported amenorrhea or spotting, 35 had hypomenorrhea, and 14 reported eumenorrhea