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OBJECTIVE To investigate the effect of the inhalation of nitrous oxide premixed with oxygen (50%:50%) for analgesia labor on maternal and fetus. METHODS A total of 100 cases of pregnant women were provided with nitrous oxide premixed with oxygen (50%:50%) (control group); Another 100 cases were provided only with oxygen (comparison group). Recording duration of the Labor, way of delivery, bleeding volume, Apgars score, blood gas analysis to maternal radius artery and fetal umbilical blood among all patients. RESULTS The effect for analgesia labor of the premixed gas was much better than that of control group, but there were no significant differences in time of labor, bleeding volume, Apgars score between the two groups. CONCLUSIONS The inhalation of nitrous oxide premixed with oxygen (50%:50%) for analgesia labor benefits pregnant women because of keeping them being a good mental and physical condition. The inhalation of nitrous oxide for analgesia labor is a safe, effective and easy method.
X Ou, and
B Li, and
H Du
July 2002,
Zhonghua fu chan ke za zhi,
X Ou, and
B Li, and
H Du
January 2018,
JAAPA : official journal of the American Academy of Physician Assistants,
X Ou, and
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January 2012,
Nursing for women's health,
X Ou, and
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H Du
February 2018,
AANA journal,
X Ou, and
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February 2022,
Anesthesia and analgesia,
X Ou, and
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September 2017,
Anesthesia and analgesia,
X Ou, and
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Obstetrics and gynecology,
X Ou, and
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The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians,
X Ou, and
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January 2019,
BioMed research international,
X Ou, and
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H Du
January 2012,
Reviews in obstetrics & gynecology,
