[Effects of primary radiotherapy on uterine circulation in advanced cervix cancer]

We examined 11 patients suffering from advanced cervical carcinomas, who were treated primarily with radiation. The blood flow through the uterus was established by measuring the Doppler pulse flow through the arteria uterina before and after radiotherapy. In a reference group of 25 women, free from cervical carcinomas, we established a median PI of the arteria uterina of 3.52 (+/- 1.10) with values between 1.64 and 5.06. In contrast, the group of 11 patients suffering from inoperable cervical carcinomas, were found to have a PI of 1.80 (+/- 1.40), with values between 0.41 and 4.41 (Wilcoxon Test: p = 0.001). After completion of the radiotherapy, 7 of the 11 patients showed no measurable pulsations of the arteria uterina, 3 patients had only systolic blood flow and only one patient had the same unchangingly high rate of blood flow as registered before radiotherapy. The significantly reduced flow of blood through the tumour tissue after radiotherapy, indicates a very limited response to chemotherapy. Therefore, chemotherapy should be administered before radiotherapy.