Tosun, GökhanAkar, Ayça NazlıBurkankulu, DeryaCeyhan, VenharAydın, Emine2025-10-172025-10-172025Tosun, G., Akar, A. N., Burkankulu, D., Ceyhan, V. ve Aydın, E. (2025). Effect of combination of uterine artery doppler and vitamin d level on perinatal outcomes in second trimester pregnant women. Journal of Perinatal Medicine, 53(1), 48-57. http://dx.doi.org/10.1515/jpm-2024-0274http://dx.doi.org/10.1515/jpm-2024-0274https://hdl.handle.net/20.500.12511/13123Objectives: To investigate the effect of the combination of uterine artery (UtA) Doppler and vitamin D levels on perinatal outcomes in second trimester pregnants was aimed. Methods: UtA Dopplers and vitamin D levels of 226 pregnant women in the second trimester were measured. Patients were followed for adverse pregnancy outcomes. The relationship of this combination with these pregnancy outcomes was evaluated. Results: Sensitivity and specificity values are respectively; Left UtA-S/D ratio for preeclampsia was 85.29 and 81.77 %, left UtA-RI was 90.62 and 43.30 % for preterm birth, and 76.19 and 66.34 % for the development of fetal distress had the best predictive effect. Vitamin D values had no predictive value for any parameter (p>0.005). Conclusions: UtA Doppler has a good predictive value for many adverse pregnancy outcomes. However, in order to correlate these results with second trimester vitamin D levels, more homogeneous and specific groups are needed.eninfo:eu-repo/semantics/openAccessAttribution 4.0 InternationalFetal Growth RestrictionPreeclampsiaPremature BirthUterine Artery DopplerVitamin DArticle531485710.1515/jpm-2024-0274Q3WOS:0013427771000012-s2.0-8520809893639460638Q2