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Abstract To investigate the application effect of “1+1” delivery accompaniment combined with the appropriate protection of perineum during the second stage of primiparas with latericumbent posture in vaginal delivery. Methods: The data of 100 primiparas who accepted “1+1” delivery accompaniment combined with the appropriate protection of perineum during the second stage of primiparas with latericumbent posture in vaginal delivery (in research group) from January 2023 to September 2023 were collected, and the data of another 100 primiparas with routine delivery (in control group) selected by propensity score matching method were also collected. The situation of perineal damage, the pain degree, the labor stress hormone level, the labor fear and psychosocial adjustment situation of the primiparas were compared between the two groups. Results: The incidences of episiotomy (12.0%), the perineum tear (44.0%), the perineum edema (41.0%) of the primiparas in the research group were significantly lower than those (24.0%, 71.0% and 59.0%) of the primiparas in the control group. The proportion of mild pain (39.0%) of the primiparas in the research group was significantly higher than that (25.0%) of the primiparas in the control group, the proportion of severe pain (13.0%) of the primiparas in the research group was significantly lower than that (30.0%) of the primiparas in the control group. The levels of adrenal cortical hormone (42.33±11.57 pmol/L) and cortisol (765.23±158.90 nmol/L) of the primiparas in the research group were significantly lower than those (49.52±9.85 pmol/L and 808.15±114.28 nmol/L) of the primiparas in the control group. The Wijma childbirth expectancy questionnaire score (72.57±10.22 points) of the primiparas in the research group was significantly lower than that (81.35±9.72 points) of the primiparas in the control group, and the maternal psychosocial adjustment scale score (44.33±8.47 points) of the primiparas in the research group was significantly higher than that (39.91±9.65 points) of the primiparas in the control group (all P<0.05). Conclusion: The “1+1” delivery accompaniment combined with the appropriate protection of perineum during the second stage of primiparas with latericumbent posture in vaginal delivery can not only reduce the tear risk of the perineum, decrease the labor pain and the labor stress hormone levels, but also have a positive role for decreasing the maternal fear.
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