Influence of prostaglandin D2 on hemodynamic effects of group B streptococcus in neonatal lambs.

Infusions of group B streptococci cause pulmonary hypertension in several neonatal animal models. A continuous infusion of prostaglandin D2 reduced the magnitude of this pulmonary hypertensive response; indomethacin completely blocked the response. Prostaglandin D2 or cyclooxygenase inhibitors may be important therapeutic agents for infants with group B streptococcal sepsis who manifest pulmonary hypertension.