95–97th percentile for sFlt1 in normal pregnancies (ng/mL)*
Patient’s sEng level (ng/mL)
95–97th percentile for sEng in normal pregnancies (ng/mL)*
Patient’s PlGF level (pg/mL)
5th–1st percentile for PlGF in normal pregnancies (pg/mL)*
Case 1
17.6
8.7
7.5–11.1
16.5
6.9–9.3
5
77–53
Case 2
21.6
21.7
7.7–9.1
120.1
6.6–10.1
3
136–103
*The percentiles for normal pregnancies were obtained from the CPEP study [3]. The values at 18 weeks are given for comparison with patient values at 17.6 weeks; values at 21-22 weeks are given for comparison with patient values at 21.6 weeks. PlGF: placental growth factor; sEng: soluble endoglin; sFlt1: soluble fms-like tyrosine kinase-1.
