[Risk factors for the formation of aberrant artery collaterals in the uterus with scar in pregnancy womenunderwent cesarean].

OBJECTIVE: To evaluate the prevalence and risk factors for the formation of aberrant artery collaterals in the uterus during uterine artery embolization (UAE). METHODS: The data of 144 women with scar in the uterus due to cesarean were retrospectively analyzed. They underwent UAE in the period of 2009-2014 and were divided into two groups according to a standard with or without the aberrant artery collaterals in the uterus. The risk factors were analyzed. RESULTS: Aberrant artery collaterals were found in thirty-four patients. According to multiple logistic regression analysis, the presence of placenta previa (RR=78.556, 95% CI: 2.869-2 150.651, P=0.010), pelvic inflammatory disease (RR=6.633, 95% CI: 1.595-27.592, P=0.009), pregnancy complications (RR=7.264, 95% CI: 1.622-32.531, P=0.010), abortions (RR=18.381, 95% CI: 1.683-200.752, P=0.017) and uterine fibroids or adenomyosis (RR=12.580, 95% CI: 1.004-157.550, P=0.050) were the factors for the presence of aberrant artery collaterals. CONCLUSION: Aberrant artery collaterals were more frequent in patients with pelvic inflammatory disease, pregnancy complications, abortions and uterine fibroids or adenomyosis.