OBJECTIVE: To compare early second-trimester maternal serum placenta growth factor concentrations in patients with subsequent development of preeclampsia and those with normal pregnancies. METHODS: We conducted a case-control analysis of stored maternal serum of 27 women who subsequently developed preeclampsia and 227 randomly selected normal controls during the gestational period of 14-19 weeks. Using such a sample size, there was a greater than 95% power to test a difference in the primary study interest. A quantitative sandwich enzyme immunoassay was used to measure the maternal serum placenta growth factor concentration. For statistical analysis, Mann-Whitney U tests, multiple linear regression analysis, multivariable logistic regression model, and receiver-operating characteristic (ROC) curve were used. P <.05 was considered statistically significant. RESULTS: Maternal serum placenta growth factor concentration was associated with the occurrence of subsequent preeclampsia (P <.001) and gestational age (P <.001). The median (interquartile range) of multiples (MoM) of the gestational age stratified median for placenta growth factor in preeclampsia was 0.55 (0.33, 0.85). The ROC curve revealed that the specificity was 70% when the diagnostic sensitivity was 70%, and the optimal cutoff value of placenta growth factor MoM was 0.76. The risk of developing preeclampsia subsequently was increased 2.5-fold for maternal serum placenta growth factor concentration decrements of 0.1 MoM. CONCLUSION: A decreased maternal serum placenta growth factor concentration in the early second trimester is highly associated with the subsequent development of preeclampsia, but a large prospective study is needed to explore its use as an early predictor for the condition.
OBJECTIVE: To compare early second-trimester maternal serum placenta growth factor concentrations in patients with subsequent development of preeclampsia and those with normal pregnancies. METHODS: We conducted a case-control analysis of stored maternal serum of 27 women who subsequently developed preeclampsia and 227 randomly selected normal controls during the gestational period of 14-19 weeks. Using such a sample size, there was a greater than 95% power to test a difference in the primary study interest. A quantitative sandwich enzyme immunoassay was used to measure the maternal serum placenta growth factor concentration. For statistical analysis, Mann-Whitney U tests, multiple linear regression analysis, multivariable logistic regression model, and receiver-operating characteristic (ROC) curve were used. P <.05 was considered statistically significant. RESULTS: Maternal serum placenta growth factor concentration was associated with the occurrence of subsequent preeclampsia (P <.001) and gestational age (P <.001). The median (interquartile range) of multiples (MoM) of the gestational age stratified median for placenta growth factor in preeclampsia was 0.55 (0.33, 0.85). The ROC curve revealed that the specificity was 70% when the diagnostic sensitivity was 70%, and the optimal cutoff value of placenta growth factor MoM was 0.76. The risk of developing preeclampsia subsequently was increased 2.5-fold for maternal serum placenta growth factor concentration decrements of 0.1 MoM. CONCLUSION: A decreased maternal serum placenta growth factor concentration in the early second trimester is highly associated with the subsequent development of preeclampsia, but a large prospective study is needed to explore its use as an early predictor for the condition.
Authors: Catherine L Haggerty; Michael E Seifert; Gong Tang; Jorn Olsen; Debra C Bass; S Ananth Karumanchi; Roberta B Ness Journal: Pregnancy Hypertens Date: 2012-04-01 Impact factor: 2.899
Authors: Giovanna Oggè; Roberto Romero; Juan Pedro Kusanovic; Tinnakorn Chaiworapongsa; Zhong Dong; Pooja Mittal; Edi Vaisbuch; Shali Mazaki-Tovi; Juan M Gonzalez; Lami Yeo; Sonia S Hassan Journal: J Matern Fetal Neonatal Med Date: 2010-08
Authors: Edi Vaisbuch; Janice E Whitty; Sonia S Hassan; Roberto Romero; Juan Pedro Kusanovic; David B Cotton; Yoram Sorokin; S Ananth Karumanchi Journal: Am J Obstet Gynecol Date: 2010-11-09 Impact factor: 8.661
Authors: Ingrid P M Gaugler-Senden; Jouke T Tamsma; Chris van der Bent; Ron Kusters; Eric A P Steegers; Christianne J M de Groot Journal: PLoS One Date: 2012-08-31 Impact factor: 3.240