A manual of practical obstetrics . Right cephalo-iliac (or dorso-anteriorposition of left shoulder. Left cephalo-iliac (or dorso-pos-terior) position of left shoulder. Presentations of the abdomen and back are very rare, andsoon become changed, spontaneously, into lateral presenta-tions, or they must be so changed artificially. Mechanism of Transverse Presentations.—There isno mechanism; at least for practical purposes, it may be con-sidered that natural delivery in cross presentations is mechani-cally impossible. Actually, however (so wonderful are Natures resources),there are two processes b
A manual of practical obstetrics . Right cephalo-iliac (or dorso-anteriorposition of left shoulder. Left cephalo-iliac (or dorso-pos-terior) position of left shoulder. Presentations of the abdomen and back are very rare, andsoon become changed, spontaneously, into lateral presenta-tions, or they must be so changed artificially. Mechanism of Transverse Presentations.—There isno mechanism; at least for practical purposes, it may be con-sidered that natural delivery in cross presentations is mechani-cally impossible. Actually, however (so wonderful are Natures resources),there are two processes by which, in exceptional cases, deliverymay occur spontaneously, but they are neither sufficientlysafe nor frequent to be relied upon or waited for in are spontaneous version and spontaneous evolution. Spontaneous Version.—That end of the foetal ovoidnearest the pelvic brim (one end generally is so, for the childsbody lies obliquely across the pelvis, seldom exactly transverse),under the influence of uterine cont
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1895
