ObjectiveThis prospective study was designed to evaluate the outcome and the changes in uterine artery blood flow after thermal balloon endometrial ablation (TBEA) in cases of menorrhagia. Study design Prospective study. Patients and methods Eighty-two premenopausal women with menorrhagia were included in this study.The TBEA was carried out on cycle days 3-8. Transvaginal color Doppler measurements were obtained from the uterine arteries on both sides before ablation and repeated on the first day, 3, 6, and 12 months after TBEA.
ResultsOf 82 women, 78 (95.12%) were satisfied and experienced improvement after TBEA. The end-diastolic velocity was significantly decreased 6 and 12 months after TBEA (5.0 ± 2.5 and 4.6 ± 3.0; respectively); also, the time-averaged maximum velocity was significantly decreased 6 and 12 months after TBEA (14.8 ± 3.4 and 13.9 ± 3.4, respectively). The pulsatility index was significantly increased 6 and 12 months after TBEA (1.6 ± 0.9 and 1.63 ± 0.8, respectively); also, the resistance index was significantly increased 6 and 12 months after TBEA (0.89 ± 0.2 and 0.90 ± 0.3, respectively). Conclusion TBEA induces increase in impedance of the uterine blood flow because of fibrosis in the endometrium and subendometrial layers, with a subsequent reduction in the menstrual flow.