Left Uterine Displacement
Manual or positional technique to move the gravid uterus off the inferior vena cava to prevent aortocaval compression.
Full Definition
A critical technique used in obstetric anesthesia to physically displace the pregnant uterus to the left side, preventing compression of the inferior vena cava and aorta. This maneuver is essential during regional anesthesia, general anesthesia, and emergency situations to maintain adequate venous return and cardiac output. The displacement can be achieved through patient positioning (left lateral tilt), manual displacement by an assistant, or use of a wedge under the patient's right hip. Failure to maintain adequate uterine displacement can lead to supine hypotensive syndrome and compromise both maternal and fetal circulation.
Usage
Usage note: Distinguish from simple left lateral positioning, which may not provide adequate displacement.
In Context
- "Continuous left uterine displacement was maintained throughout the cesarean section to optimize venous return." — Operative report
- "The assistant was instructed to provide left uterine displacement while the anesthesiologist induced general anesthesia." — Anesthetic record