Why the study?
Does partial compression of the ductus arteriosus alter pulmonary blood flow and vascular reactivity in late-gestation fetal lambs?
Population
22 chronically prepared late-gestation fetal lambs
Comparison
Partial compression of the ductus arteriosus… vs Baseline values (pre-compression)
Design
Preclinical
Follow-up
2 hours of compression and 30 minutes post-release
Authors
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Acute fetal lamb pulmonary reactivity after ductus compression; hypothesis-generating for perinatal PH mechanisms, leaves clinical translation open.
Does partial compression of the ductus arteriosus alter pulmonary blood flow and vascular reactivity in late-gestation fetal lambs?
Partial compression of the ductus arteriosus in fetal lambs causes an initial increase in pulmonary blood flow followed by a steady decline and increased pulmonary vascular resistance, indicating rapid alterations in vascular reactivity.
Abman et al. (1989) studied this question.
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