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产程进展的标志是宫口扩张和胎头下降,在分娩过程中将宫口扩大及胎头下降情况连续描绘所形成的曲线图形称产程图。 Friedman氏于1955年和1965年先后报告了宫颈扩张曲线和胎头下降曲线,以后Friedman及不少学者通过大量回顾或前瞻性的研究,不断提出了修改和补充意见,充分肯定了产程图在观察和处理产程方面的作用。由于产程图不但能展现出分娩所推迟的时
Marked progress of labor is the cervix and fetal head dilapidation decline in the delivery process will be enlarged cervix and fetal head decline in the continuous depiction of the formation of the curve graph called the birth chart. Friedman’s report of cervical dilation curve and fetal head drop curve successively in 1955 and 1965, after Friedman and many scholars through a large number of retrospective or prospective research, continue to put forward amendments and additional comments, fully affirmed the birth chart in the observation And to deal with the role of labor. Because labor map can not only show delayed delivery time