maternal positioning
Strategic placement of the pregnant patient during fetal surgery to optimize surgical access while maintaining uteroplacental perfusion and fetal safety.
Full Definition
Maternal positioning refers to the careful arrangement of the pregnant patient's body during fetal surgical procedures to achieve optimal surgical exposure while minimizing risks to both mother and fetus. This involves considerations of uterine rotation, venous compression, respiratory mechanics, and maintenance of adequate uteroplacental blood flow. Common positions include left lateral tilt to avoid aortocaval compression, modified lithotomy for certain procedures, and specialized positioning systems that accommodate the gravid abdomen while providing surgical access.
Usage
Usage note: Distinguish from fetal positioning, which refers to the orientation of the fetus within the uterus.
In Context
- "Optimal maternal positioning with left lateral tilt prevented aortocaval compression during the lengthy procedure." — Operative report
- "The maternal positioning protocol required frequent monitoring of blood pressure and uterine perfusion." — Anesthesia record