November 1, 1983Anesthesiology
Minute Ventilation and Oxygen Consumption during Labor with Epidural Analgesia
Why the study?
Does lumbar epidural analgesia reduce oxygen consumption and minute ventilation during labor?
Population
28 women in labor, including 11 women in the first stage of labor and 17 women in the second stage of labor.
Comparison
Lumbar epidural analgesia to a T10 or higher… vs No analgesia or sedation.
Design
Cohort
Follow-up
During the first and second stages of labor
Authors
Discussion
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Implication
LEA was associated with lower maternal VO2 and VE in labor; hypothesis-generating for respiratory benefits, requiring randomized confirmation before practice change.
Structured PICO
Does lumbar epidural analgesia reduce oxygen consumption and minute ventilation during labor?
P
Population
28 women in labor, including 11 women in the first stage of labor (serving as their own controls) and 17 women in the second stage of labor (7 electing no analgesia/sedation and 10 having complete pain relief from LEA).
I
Intervention
Lumbar epidural analgesia (LEA) to a T10 or higher sensory level.
C
Comparator
No analgesia or sedation (measured before LEA in the first stage, and in a separate control group in the second stage).
O
Outcome
Oxygen consumption (VO2) and minute ventilation (VE) between and during uterine contractions.surrogate
Lumbar epidural analgesia significantly decreases the work of breathing and oxygen consumption during labor by alleviating pain associated with uterine contractions.
Cite This Study
Hägerdal et al. (1983) studied this question.