Effects of Maternal Hyperventilation on Uterine Blood Flow and Fetal Oxygenation and Acid-Base Status

1974/04/01 by Gershon Levinson, Sol M. Shnider, Alfred A. deLorimier +1 · 1 voice
Neuroscience · Medicine · #Neuroscience of respiration and sleep #Neonatal Respiratory Health Research #Congenital Diaphragmatic Hernia Studies

paper · pdf · doi:10.1097/00000542-197404000-00007

openalex publication_date 1974/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11

Abstract

Changes in uterine blood flow and fetal oxygenation were studied in unanesthetized pregnant ewes following mechanical hyperventilation with hypocapnia. In order to evaluate the individual effects of maternal hypocapnia and positive-pressure ventilation, CO2 was added to the inspired air during mecha

Discussions

• Remember, hypocapnia (low CO₂ levels) isdangerous to the fetus (why we control breathing and avoid maternal hyperventilation in labor): - decreases uterine blood flow and therefore fetal oxygenation - [bsky, 2 points, 1 comments]

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