RESUMO
The objective of this study is to monitor the process of effacement of the uterine cervix and demonstrate that transperineal sonography is the appropriate technique for this purpose. Eighty-six patients with normal, term pregnancies were studied at the beginning of labor. Transperineal sonography was performed in transverse and longitudinal planes. After the initial examination, patients were reexamined several times during a 1 to 4 hour period. We observed a progressive shortening of the canal and the synchronous opening of a funnel-shaped internal cervical os. When the funneling process reached the lower end of the cervix, both orifices fused, completing the process of effacement. The dilatation of the external os, which remained stationary during initial phase, increases very quickly once the effacement has been completed. Transperineal sonography efficiently imaged the changes described here.
Assuntos
Colo do Útero/diagnóstico por imagem , Colo do Útero/fisiologia , Trabalho de Parto/fisiologia , Ultrassonografia Pré-Natal/métodos , Feminino , Humanos , Monitorização Fisiológica , GravidezRESUMO
We studied the diagnostic potential of transperineal sonography in 184 pregnant women from midtrimester to term pregnancies and at early labor. In 65 patients in false labor, we established cervical effacement and dilatation. We confirmed the clinical diagnosis of premature rupture of the membranes (PROM) in 27 cases and assessed the placental relationship with the internal cervical os in 20 patients. In 61 women in early labor we measured cervical dilatation, and in 11 patients we looked for details of fetal anatomy. Adequate diagnostic information was obtained in 180 cases (97%). Our results and data from the literature suggest that transperineal sonography is the imaging technique of choice in the situations we studied.
Assuntos
Trabalho de Parto , Complicações na Gravidez/diagnóstico por imagem , Gravidez , Ultrassonografia Pré-Natal/métodos , Apresentação Pélvica , Colo do Útero/diagnóstico por imagem , Feminino , Ruptura Prematura de Membranas Fetais/diagnóstico por imagem , Humanos , Primeira Fase do Trabalho de Parto , Períneo , Placenta Prévia/diagnóstico por imagem , Segundo Trimestre da Gravidez , Bexiga Urinária/diagnóstico por imagem , Contração Uterina , Útero/diagnóstico por imagemRESUMO
Se reporta un caso de labio leporino diagnosticado a las 28 semanas de gestacion en el cual se utilizo la tecnica descrita. Ademas coexistian multiples malformaciones