ArticleRevista da Associacao Medica Brasileira (1992)2024
Serum hCG levels in the prediction of molar pregnancy below 11 weeks of gestational age.
Article in Revista da Associacao Medica Brasileira (1992), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
objectiveThe aim of this study was to evaluate the serum hCG level in the differential diagnosis between non-molar miscarriage and complete hydatidiform mole in<11 weeks gestation.
methodsThis was a retrospective collaborative cohort study. This study included women with gestational age<11 weeks, with ultrasound evidence of failed pregnancy and available serum hCG pre-uterine evacuation, divided into two groups: the non-molar miscarriage group and the complete hydatidiform mole group. Serum hCG levels were compared according to gestational age. Statistical analysis used a nonparametric test with a 5% significance level (p<0.05).
resultsIn total, 416 patients were included, out of which 79 were included in the non-molar miscarriage group and 337 in the complete hydatidiform mole group. The calculated power of the sample was more than 80%. Data analysis showed that the 75th quartile of the median in the non-molar miscarriage group was always lower than the 25th quartile of the median in the complete hydatidiform mole group [9,721 mUI/mL/16,435 mUI/mL (6-7 weeks), 20,229 mUI/mL/64,911 mUI/mL (8-9 weeks), and 29,633 mUI/mL/126,278 mUI/mL (10-11 weeks), respectively; p<0.001].
conclusionFacing failed pregnancies, hCG>16,435 mUI/mL at 6-7 weeks, hCG>64,911 mUI/mL at 8-9 weeks, and hCG >126,278 mUI/mL at 10-11 weeks were most prevalent on complete hydatidiform mole diagnosis. On the contrary, hCG<30,000 mUI/mL at 10-11 weeks was most prevalent in non-molar miscarriage diagnosis.
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