Could serum β-hCG levels and gestational age be the indicative factors for the prediction of the degree of trophoblastic invasion into tubal wall in unruptured …

EN Turgut, E Celik, S Celik, DC Arikan… - Archives of gynecology …, 2013 - Springer
EN Turgut, E Celik, S Celik, DC Arikan, H Altuntas, C Leblebici, S Purisa, R Dansuk
Archives of gynecology and obstetrics, 2013Springer
Objective To evaluate the predictive value of gestational age and maternal serum β-hCG
concentration for the determination of the depth of trophoblastic invasion into the tubal wall.
Methods This is a retrospective trial conducted on women with a diagnosis of ampullary
pregnancy (71) who were submitted to salpingectomy. Serum β-hCG measurements were
obtained at the initial admission of hospital. Histological investigation was performed by a
single well-experienced pathologist who was blind to the clinical and laboratory …
Objective
To evaluate the predictive value of gestational age and maternal serum β-hCG concentration for the determination of the depth of trophoblastic invasion into the tubal wall.
Methods
This is a retrospective trial conducted on women with a diagnosis of ampullary pregnancy (71) who were submitted to salpingectomy. Serum β-hCG measurements were obtained at the initial admission of hospital. Histological investigation was performed by a single well-experienced pathologist who was blind to the clinical and laboratory characteristics of the patients. Ampullary pregnancy was classified histologically according to the depth of trophoblastic infiltration into tubal wall: trophoblast limited to the tubal mucosa (stage I), extended to muscularis layer (stage II) and complete tubal wall infiltration up to serosal layer (stage III).
Results
There was a significant difference in maternal serum β-hCG concentrations regarding the histological stages of trophoblastic invasion. The serum β-hCG concentrations that the best predicted for stage III trophoblastic invasion was 6,475 mIU/ml, with a sensitivity of 100 %, a specificity of 92 %.
Conclusion
The depth of trophoblastic tissue infiltration into tubal wall is correlated with serum β-hCG levels, but not with gestational age. These findings may explain the reason for conservative management failure of EP in women with high β-hCG concentrations.
Springer
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