Does corticosteroid therapy impact fetal pulmonary artery blood flow in women at risk for preterm birth?
Our data demonstrate altered fetal pulmonary blood flow with corticosteroid therapy, possibly due to increased arterial elastance brought on by medication effect, which leads to the decreased acceleration time or possible gestational age affect. Contrary to a recent report, we did not observe any Doppler differences in fetuses with RDS, which underscores the need for further examination of this proposed association.
After discontinuing HAART, individuals had rebounds in their viral burdens approximating pre-HAART levels, even after a significant lapse of time approaching 5 years. Our data suggest that an intrinsic viral load set-point may exist, and that a single interruption of an effective regimen with viral suppression for almost 2 years does not significantly alter this set-point.