Search

Background: The objective was to determine if antenatal anemia is associated with postpartum red blood cell (RBC) transfusion.Study Design and Methods: Women who gave birth at a regional, tertiary care maternity hospital between December 1, 2015, and September 31, 2016, with a documented antenatal hemoglobin (Hb) concentration were included. Women were grouped into those who were either anemic (Hb < 11.0 g/dL) or nonanemic. The change in Hb concentration and RBC transfusion rates were compared between the anemic and nonanemic women, as well as by the mode of delivery (vaginal vs. Cesarean). To estimate the volume of blood loss in a normal delivery, the mean postpartum Hb concentration decrease for the not transfused women was calculated by subtracting the nadir postpartum Hb concentration from the antenatal Hb concentration and averaging these concentrations according to delivery route.Results: Of 8039 cases analyzed, 1562 (19%) had antenatal anemia and 6477 (81%) were nonanemic. Of the anemic women, 57 (3.6%) received an RBC transfusion compared to 49 (0.76%) of the nonanemic women (p = 0.0001; odds ratio, 4.97; 95% confidence interval, 3.38-7.31). Antenatal anemia was significantly associated with receiving an RBC transfusion regardless of mode of delivery for those who delivered vaginally (p = 0.0001) or by Cesarean (p = 0.0001) compared to those who were nonanemic. The mean postpartum Hb concentration decrease was 1.12 ± 1.12 g/dL for vaginal deliveries and 1.34 ± 0.21 g/dL for Cesarean deliveries in the not transfused women (p = 0.0001).Conclusion: Although the overall rate of transfusion was low, antenatal anemia was significantly associated with receiving a postpartum RBC transfusion. [ABSTRACT FROM AUTHOR]

Objective To determine the risk factors associated with having a very low birth weight ( VLBW) infant as a follow-up to the first phase of a Perinatal Periods of Risk approach. Design and Sample Retrospective cohort analysis of birth certificates. Population-based sample of 53,427 birth certificates for the city under study during the years 1999-2006. Measures The relationship of selected maternal characteristics as predictors of VLBW using multivariate logistic regression analysis. Results The maternal characteristics associated with VLBW were as follows: no prenatal care (OR = 4.04), inadequate weight gain (OR = 3.97), Black, non-Hispanic race (OR = 1.50), less than 20 years old (OR = 1.42) and more than 35 years old (OR = 1.43). After analyzing age and race/ethnicity together, Black non-Hispanic women less than 20 years of age (OR = 2.70) or over 35 years of age (OR = 2.45) still had an increased odds for having a VLBW infant whereas Black non-Hispanic women between the ages of 20 and 35 did not. Conclusions The findings of this study suggest educating women on the importance of preconception care, prenatal care, and adequate pregnancy weight gain to reduce the odds of having a VLBW infant. [ABSTRACT FROM AUTHOR]