Larsson L E, Andréasson S, Ekström-Jodal B, Nilsson K
Acta Anaesthesiol Scand. 1987 May;31(4):273-5. doi: 10.1111/j.1399-6576.1987.tb02564.x.
Carbon dioxide tensions (PCO2) in arterialized capillary blood samples were measured in 39 infants anaesthetized for minor paediatric surgery. Anaesthesia was induced and maintained with oxygen, nitrous oxide and halothane, using a Mapleson-D system with spontaneous ventilation and a Rendell-Baker face mask. The duration of anaesthesia was between 15 and 95 min. Two capillary blood samples were obtained during stable anaesthesia before and after surgery. The PCO2 values varied between 3.7 and 8.0 kPa. The highest values were found in infants aged 15-30 days, 6.6 +/- 0.7 kPa (mean +/- s.d.), compared to 5.9 +/- 0.7 in infants aged 31-60 days, 5.6 +/- 0.8 in infants aged 61-180 days and 5.5 +/- 0.7 in infants aged 181-300 days. Comparison between measurements before and after surgery did not in any group indicate a progressive hypoventilation or a correlation between the length of the anaesthesia and the PCO2. It is concluded that anaesthesia with oxygen, nitrous oxide and halothane with spontaneous mask ventilation is a satisfactory method for minor procedures in infants over 1 month of age, while in younger infants controlled ventilation with intubation may be a safer choice of method.
对39名接受小儿小手术麻醉的婴儿，测量了动脉化毛细血管血样中的二氧化碳分压（PCO2）。采用Mapleson - D系统并通过Rendell - Baker面罩进行自主通气，用氧气、氧化亚氮和氟烷诱导并维持麻醉。麻醉持续时间为15至95分钟。在手术前后麻醉稳定期采集两份毛细血管血样。PCO2值在3.7至8.0千帕之间。15至30日龄婴儿的PCO2值最高，为6.6±0.7千帕（平均值±标准差），而31至60日龄婴儿为5.9±0.7千帕，61至180日龄婴儿为5.6±0.8千帕，181至300日龄婴儿为5.5±0.7千帕。手术前后测量值的比较表明，任何一组均未出现进行性通气不足，也未发现麻醉时间与PCO2之间存在相关性。结论是，对于1月龄以上婴儿的小手术，采用氧气、氧化亚氮和氟烷并通过面罩自主通气进行麻醉是一种令人满意的方法，而对于更小的婴儿，插管控制通气可能是更安全的方法选择。
