The causes and treatment of abortion . Kio. 20.—Kuot in the stage of formation. membranes, or bifurcates before insertion, or is fixed into someother part of the childs body other than the umbilical Martins Atlas of Obstetrics and Gynecology, some suchillustrations will be found. (See Fig. 20.) True knots must be differentiated from false ones. The latterare generally due to local accumulations of Whartons jelly. DrGordon describes a case, when a four months foetus and placenta FCETAL CAUSES. 119 were expelled. There was a knot on tlie cord, and atrophy oneach side of it. In torsion,
The causes and treatment of abortion . Kio. 20.—Kuot in the stage of formation. membranes, or bifurcates before insertion, or is fixed into someother part of the childs body other than the umbilical Martins Atlas of Obstetrics and Gynecology, some suchillustrations will be found. (See Fig. 20.) True knots must be differentiated from false ones. The latterare generally due to local accumulations of Whartons jelly. DrGordon describes a case, when a four months foetus and placenta FCETAL CAUSES. 119 were expelled. There was a knot on tlie cord, and atrophy oneach side of it. In torsion, or tioisling (see Figs. 21, 22, and 23), Spiith men-. Fio. 21.—Twisting of cord (Martius Atlas). tions three cases where the death of the foetus was brought aboutby the cords being twisted until they were reduced to the thick-ness of a thread. There is no doubt but that, in the earlymonths of pregnancy, when the fcetus is suspended horizontally. I20 THE CAUSES OF ABORTION. it may revolve iii the arc of a circle of which the point of iuser-tion of the cord is the centre. Spiegelberg refers to torsions as of two kinds, prae-mortal and post-mortal. The first is caused by the movements of thefoetus, while the second results from the movements of the relates a case, where a woman was delivered of a deadfoetus, whose cord was twisted 28 times. DOutrepont says, thatgreat torsion of the umbilical cord may determine the deathof the foetus by impeding the circulation. Kleinwachter says.
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