Abrão, Karen Cristine MD, PhD; Francisco, Rossana Pulcineli Vieira MD, PhD; Miyadahira, Seizo MD, PhD; Cicarelli, Domingos Dias MD, PhD; Zugaib, Marcelo MD, PhD
Obstetrics & Gynecology. 113(1):41-47, January 2009.
doi: 10.1097/AOG.0b013e31818f5eb6
Combined spinal-epidural analgesia in labor is associated with elevation of uterine tone and fetal heart rate abnormalities in the first 15 minutes of analgesia.