Annals of African medicine · 2024
Diagnostic Accuracy of Serum Glycosylated Fibronectin in Prediction of Preeclampsia: A Nested Case-Control Study.
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Sachan Rekha, Sachan Pushpa Lata, Ghayyur Nazrana, Patel Munna Lal, Ali Wahid
Аннотация
BACKGROUND: Preeclampsia is a life-threatening complication of pregnancy that occurs in approximately 7% of all pregnancies. In India, the incidence of preeclampsia is 8%-10% and the prevalence is 5.4%, whereas the prevalence of hypertensive disorders of pregnancy is 7.8%.
AIM AND OBJECTIVES: This study was aimed at evaluating the diagnostic accuracy of serum glycosylated fibronectin (S. GlyFn) in the prediction of preeclampsia.
METHODS: A nested case-control study was carried out for 16 months in the department of obstetrics and gynecology. A total of 240 women were recruited and followed after written consent and ethical clearance. Six were lost to follow-up, 15 had second-trimester abortions (excluded from the study), and 32 women developed hypertensive disorders of pregnancy (cases), out of which 1 woman developed antepartum eclampsia, 10 women developed preeclampsia with severe features, and 21 women developed preeclampsia without severe features. One hundred and eighty-seven women remained normotensive throughout the pregnancy until 6 weeks postpartum. After randomization, out of these samples, 54 were analyzed and considered controls. Levels of S. GlyFn were estimated using an ELISA kit using the ELISA technique.
RESULTS: The mean S. GlyFn level was significantly higher at the time of enrollment among those women who later developed preeclampsia (127.59 ± 27.68 ng/m) as compared to controls (107.79-53.51 ng/mL). GlyFn at a cutoff value of 126.70 ng/mL significantly (P = 0.034) discriminates cases of preeclampsia with severe features from healthy controls with a sensitivity of 90.00%, a specificity of 63.00%, a 31.03% positive predictive value, and 97.14% negative predictive value.
CONCLUSION: S. GlyFn, at a cutoff value of 126.70 ng/mL, had good sensitivity to discriminate PE from normotensive and was also a good prognostic marker.
AIM AND OBJECTIVES: This study was aimed at evaluating the diagnostic accuracy of serum glycosylated fibronectin (S. GlyFn) in the prediction of preeclampsia.
METHODS: A nested case-control study was carried out for 16 months in the department of obstetrics and gynecology. A total of 240 women were recruited and followed after written consent and ethical clearance. Six were lost to follow-up, 15 had second-trimester abortions (excluded from the study), and 32 women developed hypertensive disorders of pregnancy (cases), out of which 1 woman developed antepartum eclampsia, 10 women developed preeclampsia with severe features, and 21 women developed preeclampsia without severe features. One hundred and eighty-seven women remained normotensive throughout the pregnancy until 6 weeks postpartum. After randomization, out of these samples, 54 were analyzed and considered controls. Levels of S. GlyFn were estimated using an ELISA kit using the ELISA technique.
RESULTS: The mean S. GlyFn level was significantly higher at the time of enrollment among those women who later developed preeclampsia (127.59 ± 27.68 ng/m) as compared to controls (107.79-53.51 ng/mL). GlyFn at a cutoff value of 126.70 ng/mL significantly (P = 0.034) discriminates cases of preeclampsia with severe features from healthy controls with a sensitivity of 90.00%, a specificity of 63.00%, a 31.03% positive predictive value, and 97.14% negative predictive value.
CONCLUSION: S. GlyFn, at a cutoff value of 126.70 ng/mL, had good sensitivity to discriminate PE from normotensive and was also a good prognostic marker.