Introduction
DISEASE, HYPERTENSION IN PREGNANCY
Hypertension in pregnancy is a unique disease during pregnancy [Currently, the commonly used method of labor analgesia is continuous epidural analgesia, which requires a large amount of anesthetics [In our previous study, we applied continuous spinal anesthesia and continuous epidural anesthesia for analgesia in normal laboring mothers and achieved satisfactory clinical results, and we also considered the results of Tao et al.’s study regarding the dose application of continuous spinal anesthesia [It is known that maternal position changes, effects of anesthesia, delivery of the fetus, and delivery forceps application can cause significant fluctuations in hemodynamics, whereas obstetricians usually only monitor heart rate, blood pressure, pulse as well as blood oxygen saturation [