0000000000958874

AUTHOR

L. P. Rossal

showing 2 related works from this author

Radicales libres de oxígeno y su relación con enfermedades específicas del embarazo

2003

Resumen De forma reciente se han publicado estudios que relacionan los radicales libres de oxigeno con enfermedades especificas del embarazo. En el parto pretermino, el oxido nitrico puede estar involucrado en la quiescencia fisiologica del utero y la colagenolisis asociada con el reblandecimiento tisular del cervix. Respecto a la rotura prematura de membranas, se conoce que la fuerza del amnios deriva del colageno; que su degradacion es controlada por las metaloproteinasas de la matriz, y que una alteracion del balance entre los pro y los antioxidantes aumenta la actividad de estas ultimas. En la preeclampsia, la placentacion defectuosa produce vasoconstriccion, con baja perfusion placenta…

Obstetrics and GynecologyProgresos de Obstetricia y Ginecología
researchProduct

First-trimester reversed end-diastolic flow in the umbilical artery is not always an ominous sign

2003

We report five cases of first-trimester reversed end-diastolic flow in the umbilical artery. Diagnoses were performed between 8 and 12 gestational weeks. All but one case appeared as a transient early finding. Second-trimester fetal demise occurred in two cases. One case delivered at 32 weeks with severe growth restriction but recovered well. The other two cases had a good pregnancy outcome. Our experience suggests that this early Doppler finding is not always an ominous sign.

Pregnancymedicine.medical_specialtyRadiological and Ultrasound Technologybusiness.industryObstetrics and GynecologyUmbilical arteryGeneral Medicinemedicine.diseaseSurgeryFirst trimesterReproductive MedicineGrowth restrictionGestational Weeksmedicine.arteryMedicineRadiology Nuclear Medicine and imagingFetal DemisebusinessDiastolic flowSign (mathematics)Ultrasound in Obstetrics and Gynecology
researchProduct