[Prediction of the latency period by cervical ultrasonography in XXXX before term].

@entity1 @entity115 @entity798 @entity4942 @entity13493 @entity2588 @entity1851
OBJECTIVE: To assess the value of ultrasonographic measurement of cervical length for predicting the duration of the latency period from admission to delivery in @entity1 with preterm @entity4942 ( @entity4942 ). METHOD: Prospective study in 88 @entity1 with @entity13493 before 34 weeks of @entity2588 . The median gestational age at admission was of 30.1 weeks. The clinical management included: no digital examination of the uterine cervix, antenatal corticosteroids, antibiotics ( @entity115 _ @entity798 ) for 7 days, and hoding back until 34 weeks. Cervical length at admission was determined with transvaginal ultrasonography. The duration of the latency period was studied in relation with cervical length, serum @entity1851 (CRP) level and white blood cell (WBC) count at admission. RESULTS: The median latency period was longer in @entity1 with a cervical length > or = 25 mm (10 vs 5 days; p = 0.04), but this was not associated with a significant increase in birth weight. The median latency period was also longer in @entity1 with CRP < 20 mg/l (10 vs 3 days; p < 0.001) and this was associated with a significant increase in birth weight (1716 +/- 549 vs 1201 +/- 485 g; p < 0.01). Moreover, increased CRP levels were more frequent in @entity1 with a cervical length < 25 mm, and cervical length was no more predictive of the duration of the latency period in the subgroup of @entity1 with CRP < 20 mg/l and WBC < 20,000 cells/mm3. CONCLUSION: In @entity1 with @entity13493 , the latency period from admission to delivery is shorter when cervical length is < 25 mm. However, the clinical value of transvaginal ultrasonography is limited in comparison with serum CRP.
