UTERINE ARTERY DOPPLER FLOW INDICES FROM 21 TO 24 WEEKS GESTATIONAL AGE

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Article Title:	UTERINE ARTERY DOPPLER FLOW INDICES FROM 21 TO 24 WEEKS GESTATIONAL AGE
Authors:	V. Dascau1*, Gh. Furau1, C. Furau1, Cristina Onel1, Casiana Stănescu2, Liliana Tătaru1, Cristina Ghib-Para3, Cristina Popescu4, Maria Puschita5
Affiliation:	1Department of Obstetrics and Gynecalogy, „Vasile Goldiş” Western University, Arad, Romania 2Department of Anatomy, „Vasile Goldiş” Western University, Arad, Romania 3Department of Haematology, „Vasile Goldiş” Western University, Arad, Romania 4Department of Life Sciences, „Vasile Goldiş” Western University, Arad, Romania 5Department of Internal Medicine, „Vasile Goldiş” Western University, Arad, Romania
Abstract:	Uterine artery Doppler flow studies during the 21th and 24th weeks of pregnancy are important in the prediction of preeclampsia and IUGR in pregnant women and also in the prevention thereof. Our study of the Doppler flow indices of the uterine arteries involves 150 patients examined in our clinic, with pregnancies ranging from 21 weeks + 0 days to 23 weeks + 6 days. There were 41 patients from 21 weeks + 0 days to 21 weeks + 6 days (27.33%), 54 from 22 weeks + 0 days to 22 weeks + 6 days (36%), and 55 from 23 weeks + 0 days to 23 weeks + 6 days (36.67%). The values of the Doppler indices were: PI 1.06±0.45, 1.09±0.42, 1.06±0.56, and 1.05±0.32, RI 0.58±0.11, 0.59±0.11, 0.57±0.12, and 0.59±0.09, and PI/RI 1.77±0.38, 1.78±0.35, 1.77±0.48, and 1.76±0.26for the entire group and for the three intervals respectively. There were 21 (14%), 22 (14.67%, with 13 cases or 59.09% on the left side), and 107 (71.33%) patients with bilateral, unilateral and absent uterine artery notching, respectively. The Doppler indices for the three aforementioned groups were: 1.53±0.69, 1.12±0.42, and 0.96±0.32 for the PI, 0.68±0.11, 0.60±0.11, and 0.56±0.10for the RI, and 2.17±0.61, 1.81±0.33, and 1.68±0.25 for the PI/RI, respectively. The indices for the arteries with and without notching in all patients, as well as for the uterine arteries with and without notching in patients with unilateral notching, were 1.43±0.64, 0.96±0.31, 1.25±0.49, and 1.00±0.28 for the PI, 0.66±0.12, 0.56±0.10, 0.63±0.12, and 0.58±0.08 for the RI, and 2.08±0.56, 1.68±0.25, 1.90±0.39, and 1.71±0.23for the PI/RI respectively. The mean uterine artery PI, RI, and PI/RI decrease from 21 weeks + 0 days-21 weeks + 6 days to 23 weeks + 0 days-23 weeks + 6 days. They also decrease from pregnant patients with bilateral uterine artery notching to those without notching. The frequency of uterine artery notching decreases with increasing gestational age. Our results are similar to those in literature. Our results are similar to those in literature.
Keywords:	pregnancy, gestational age, uterine artery notching, Doppler indices, pulsatility index, resistivity index, preeclampsia, IUGR
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