A manual of obstetrics . ries of observations, the result of which he reported atthe eighteenth annual meeting of the American Gyneco-logical Society. He has found that in spontaneous deliveryin primiparae the two shoulders appear first at the outletwith about equal frequency, while in multiparae the pos-terior shoulder is seen first most commonly. In bothclasses of patients the left or posterior shoulder is bornfirst in the great majority of the cases—three and one-halftimes as frequently as the anterior in primiparae, and twoand one-half times as frequently as the anterior in multip-arae. {j
A manual of obstetrics . ries of observations, the result of which he reported atthe eighteenth annual meeting of the American Gyneco-logical Society. He has found that in spontaneous deliveryin primiparae the two shoulders appear first at the outletwith about equal frequency, while in multiparae the pos-terior shoulder is seen first most commonly. In bothclasses of patients the left or posterior shoulder is bornfirst in the great majority of the cases—three and one-halftimes as frequently as the anterior in primiparae, and twoand one-half times as frequently as the anterior in multip-arae. {j) Expulsion of the Trunk.—This is rapidly accom-plished by a spiral movement, the body of the child almostfalling into the hands of the obstetrician. Mechanism of the Second Position, Right Occipitoanterior—R. 0. A. (Fig. 61).—This is the third position in frequency;occurring in about 10 per cent, of allcases. Diagnosis.— Vaginal examina-tion shows that the depressed occiputand smaller fontanel are anterior and.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
