A manual of obstetrics . strosities according to thedegree of interference with the process. (3) An increasedtC7idcucy to diseases of the niendnanes. Hydramnios is a notinfrequent complication of multiple pregnancy resultingfrom some interference with the circulation of the parts.(4) Ufa/positions and nia/presentations. Transverse presen-tation of the fetus is quite a common complication of twingestations: it occurs once in about 22 cases; presentationof the breech is also frequent. PLURAL BIRTHS. 485 TJic Clinical ATanifcstatioiis of Labor in Multiple Preg-nancy.—The labor is precisely like t
A manual of obstetrics . strosities according to thedegree of interference with the process. (3) An increasedtC7idcucy to diseases of the niendnanes. Hydramnios is a notinfrequent complication of multiple pregnancy resultingfrom some interference with the circulation of the parts.(4) Ufa/positions and nia/presentations. Transverse presen-tation of the fetus is quite a common complication of twingestations: it occurs once in about 22 cases; presentationof the breech is also frequent. PLURAL BIRTHS. 485 TJic Clinical ATanifcstatioiis of Labor in Multiple Preg-nancy.—The labor is precisely like that occurring whenbut one fetus is contained in ntcro. Ks, a rule, it is easy,owing to the inefficient character of the pains—a directconsequence of the extreme distention of the uterine wallsand the small size of the fetuses : the first stage of labor,however, is protracted. After the birth of the first childthe cord should be ligated and no attempt made to ex-tract the placenta. Within a short space of time—on an. Fig. 1J5.— iuiiii, bwLh heads presenting (Dickinson). average not more than from twenty to forty-five minutes—the labor-pains return ; the os, which has partially recon-tracted, dilates and the second bag of water presents; thissecond labor, the presentation being normal, is much easierthan the first. Upon the delivery of the second child thetwo placentae appear and labor is terminated. It is unusualfor separation of the first placenta to occur before delivery of 486 A MANUAL OF OBSTETRICS. the second child; hence there is, as a rule, no hemorrhageduring the progress of the labor. In those cases, however,in which the two fetuses and their membranes and append-ages are quite distinct, the fetus first presenting may bedelivered with its appurtenances in its entirety; this hap-pening, the interval elapsing before the birth of the secondchild may be quite protracted, even, though rarely, amount-ing to days or weeks (as in certain reported cases of super-fetati
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
