Arturo Mendoza

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OBJECTIVE To assess the specificity of sonographic diagnosis of vasa previa and pregnancy outcome in sonographically diagnosed cases. METHODS We prospectively collected cases of vasa previa diagnosed by color Doppler sonography. Delivery by elective Cesarean section after demonstration of fetal pulmonary maturity and prior to the onset of labor was(More)
BACKGROUND The aetiology and exact incidence of infantile haemangiomas (IHs) are unknown. Prior studies have noted immunohistochemical and biological characteristics shared by IHs and placental tissue. OBJECTIVES We investigated the possible association between placental anomalies and the development of IHs, as well as the demographic characteristics and(More)
An intrapericardial teratoma associated with a large pleural effusion and elevated aortic outflow velocity was diagnosed at 23.6 weeks' gestation. Less than 4 weeks earlier, an obstetric scan, including a four-chamber heart view, had been normal. In less than a week following diagnosis, fetal hydrops and bradycardia developed. 'Heroic' pericardiocentesis(More)
Color Doppler and gray scale sonography can be used prenatally to identify the location of the cord insertion into the placenta. The purposes of this paper were to (1) relate sonographic identification of placental cord insertion with placental pathology; (2) evaluate the possibility that a marginal cord insertion may evolve into a velamentous cord(More)
OBJECTIVE To assess accuracy of detecting cord entanglement in monoamniotic twins, and to describe perinatal outcomes with aggressive obstetric management. METHODS Seven nonconjoined monoamniotic twin pregnancies and one pseudomonoamniotic twin pregnancy were diagnosed sonographically and evaluated with serial scans and cardiotocography. In the absence of(More)
The sinusoidal fetal heart rate pattern has been described in association with severe fetal anaemia, with fetal hypoxaemia, and with the administration of parenteral narcotics. Here, we report a case of decreased fetal movement in which a sinusoidal tracing was recorded. The sonographic diagnosis of a massive fetal intracranial haemorrhage was made. A(More)
We present a case in which an intracranial tumour replacing all intracranial contents was diagnosed by sonography at 31 weeks' gestation. The patient was delivered by caesarean section and died shortly after delivery. At necropsy, the tumour was found to be a teratoma with no recognisable normal brain tissue present. Additional findings at necropsy included(More)
Abnormal or absent expression of the human retinoblastoma susceptibility (RB) gene has been implicated in the genesis of retinoblastoma. In addition to a 90% chance of developing retinoblastoma, patients inheriting a mutant RB gene have a high incidence of second nonocular malignancies, suggesting a role for this gene in other tumors as well. This report(More)
Phospholipid antibodies (lupus anticoagulant, cardiolipin) are associated with a syndrome of repeated fetal loss. Mothers with phospholipid antibodies are currently being treated with either prednisone, aspirin, or heparin to prevent fetal death. We describe a neonate whose mother had cardiolipin antibody and recurrent fetal loss and was treated with(More)
Two platelet-derived growth factor A-chain proteins, termed short and long A chains, are generated as a result of alternative mRNA splicing of exon 6 of the A-chain gene. S1 nuclease mapping and polymerase chain reaction analyses demonstrate that both short and long A-chain transcripts are expressed in a variety of normal tissues. In addition,(More)