Soyannwo O A
Afr J Med Med Sci. 1985 Mar-Jun;14(1-2):95-8.
The effectiveness, safety and acceptability of self-administered Entonox (50% nitrous oxide in oxygen) in 150 Nigerian women during labour was studied. 86.7% of those who received Entonox alone reported satisfactory pain relief while analgesia was also satisfactory in all those who received Entonox plus intramuscular analgesic. Severe drowsiness occurred in two patients and the method was acceptable to 90% of the mothers in the study. To prevent exhaustion of the mothers and marked drowsiness, intramuscular analgesic should be used early in labour followed by Entonox in the second half of the labour.
对150名尼日利亚妇女分娩时自行使用恩托诺克斯（50%氧化亚氮和氧气混合气体）的有效性、安全性和可接受性进行了研究。仅使用恩托诺克斯的产妇中，86.7%报告疼痛缓解效果令人满意，而在所有使用恩托诺克斯加肌肉注射镇痛药的产妇中，镇痛效果也令人满意。两名患者出现严重嗜睡，该方法在研究中的产妇中有90%可以接受。为防止产妇疲惫和明显嗜睡，应在分娩早期使用肌肉注射镇痛药，后半程使用恩托诺克斯。
