preductal en · ADJ
Etymology
From pre- + ductal.
Meanings
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(not-comparable) Proximal to a ductus (for example, the ductus arteriosus).
Aortic coarctation is congenital focal narrowing of the aorta in the region of the ductus arteriosus. It may be preductal (proximal to the ductus, illustrated on the right [in the original]), periductal, or postductal.
2013, Jacob Mandell, Core Radiology: A Visual Approach to Diagnostic Imaging (Cambridge Medicine), 1st edition, →ISBN, page 769:Criteria for endotracheal intubation were dissatisfying response to non-invasive ventilation defined as absent or insufficient increase in HR and/or preductal oxygen saturation (SpO₂) despite supplemental oxygen.
2015 September 26, “Do sustained lung inflations during neonatal resuscitation affect cerebral blood volume in preterm infants? A randomized controlled pilot study”, in PLOS ONE, →DOI: