Masui. The Japanese journal of anesthesiology
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One hundred healthy parturients scheduled for elective cesarean section were studied prospectively. Fifty patients received spinal anesthesia with 12mg of hyperbaric tetracaine and were defined as the spinal group. Other fifty patients received epidural anesthesia with 300mg of lidocaine and were defined as the epidural group. ⋯ Prehydration did not improve significantly neither acid-base balances of umbilical arterial and venous blood nor Apgar scores of the neonates in either group. We conclude that massive fluid load is not indispensable immediately before the regional anesthesia for the parturient. Furthermore, because this method is not reliable, its advantages and disadvantages including the possibility of enhancing pulmonary edema should be evaluated.
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A series of 305 infants and children between 1 day to 14 years of age were operated upon using caudal anesthesia. We used 1% mepivacaine 1.2 ml.kg-1 to obtain a level of anesthesia above T10, 1.0 ml.kg-1 above L1, and 0.8 ml.kg-1 above S. Complete failure occurred in 4.3% of patients. ⋯ The coefficients of correlation between D and height is 0.97, and high correlation existed also between D and body weight (r = 0.93). This confirms that body weight can be used as a parameter to determine the dose of local anesthetic agent. We conclude that this technique is a safe, reliable and simple way to produce surgical analgesia in infants and children.