John M. Hansen

TL;DR: It was found that posture exerted a profound influence on maternal cardiodynamics in late pregnancy and Cesarean section under spinal anesthesia seems contraindicated in the pregnant patient with heart disease because of the extensive cardiovascular changes encountered.

TL;DR: It was found that maternal posture exerted a significant influence on cardiodynamics and the vascular obstruction produced by the gravid uterus at term must be considered when evaluating maternal hemodynamics.

TL;DR: The magnitude of the maternal cardiovascular response was similar to changes in posture from supine to side, to uterine contractions, and to delivery, suggesting that the redistribution of blood volume was the common etiologic factor.

TL;DR: Hemodynamic measurements were carried out in 13 normal term pregnant women undergoing cesarean section under epidural anesthesia without epinephrine, and hemodynamic stability has not been achieved previously with other anesthetic techniques.

TL;DR: Cardiac outputs, arterial blood pressures, central venous pressures, heart rates, electrocardiograms and amniotic fluid pressures were measured in a group of women during labor and normal delivery with caudal analgesia and compared with another group under local anesthesia.