Journal
PREGNANCY HYPERTENSION-AN INTERNATIONAL JOURNAL OF WOMENS CARDIOVASCULAR HEALTH
Volume 10, Issue -, Pages 165-170Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.preghy.2017.08.003
Keywords
Preeclampsia; sFlt-1/PlGF ratio; Diagnosis; Pregnancy outcome
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Objective: The sFlt-1/PlGF ratio is a valid marker in diagnosing or excluding preeclampsia. The currently used cut offs frame an intermediate zone of 33-85 (< 34(0) weeks) or 33-110 (>= 34(0) weeks), respectively. In this study we sought to evaluate the relevance of an intermediate sFlt-1/PlGF ratio for the clinical pregnancy course and outcome. Material and methods: We retrospectively analysed 533 consecutive patients with sFlt-1/PlGF ratio measurements for suspected preeclampsia. In patients with an intermediate sFlt-1/PlGF ratio, fetal and maternal characteristics and also pregnancy outcome were documented. Furthermore, we compared the patient groups with < 34(0)/34(0) -36(6)/>= 37(0) gestational weeks at first visit. Results: 83/533 (15.6%) patients had an intermediate sFlt-1/PlGF ratio. Maternal or fetal diseases or twin pregnancies occurred in 87.9%. Preeclampsia/HELLP syndrome developed in 31.3% but were mostly mild or moderate (65.4%). However, severe adverse outcome was observed in 36.1% with severe preeclampsia in 10.8%. Even if further pregnancy duration and gestational week correlated negatively (r = - 0.424; p < 0.001), 92% of patients, tested with < 34(0) weeks delivered prematurely. The overall preterm birth rate was 27.7%. Conclusions: Patients with an intermediate sFlt-1/PlGF ratio are at risk for severe adverse outcome. An intermediate sFlt-1/PlGF ratio indicates a risk for preterm birth, independent from the occurrence of preeclampsia.
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