San Francisco—A pocket-sized ultrasound device for spinal anesthesia guidance accurately predicts Tuohy needle depth to epidural space. In addition, using the epidural insertion point identified by the hand-held device was associated with high first-pass success and minimal needle redirections.
“This preliminary feasibility study in laboring parturients showed that the hand-held ultrasound [device] accurately predicted Tuohy needle depth at loss of resistance within the standard of