. The science and art of midwifery. Fio. 144.—Torsion of the cord. (Schauta.) reverse rotation. 3. Upon the fact that even twenty-five artificiallyinduced torsions resulted in rupture of the normal cord from excessivetension. Schauta regards the cysts found in connection with sometorsions as insufficient proof of their ante-mortem occurrence. Tor-sions are more frequently present in the umbilical cords of male thanin those of female foetuses, and are sometimes surprisingly reports a case in which he observed three hundred and eightyrotations of the cord on its longitudinal axi
. The science and art of midwifery. Fio. 144.—Torsion of the cord. (Schauta.) reverse rotation. 3. Upon the fact that even twenty-five artificiallyinduced torsions resulted in rupture of the normal cord from excessivetension. Schauta regards the cysts found in connection with sometorsions as insufficient proof of their ante-mortem occurrence. Tor-sions are more frequently present in the umbilical cords of male thanin those of female foetuses, and are sometimes surprisingly reports a case in which he observed three hundred and eightyrotations of the cord on its longitudinal axis. It occurs by preferencein multiparas probably on account of the greater latitude afforded for. DISEASES OF THE DECIDUA.—DISEASES OF THE OVUM. 293 fetal movements. Unusual length of the cord favors its occurrence,for a similar reason. The seat of the torsion is ordinarily in closeproximity to the umbilicus. It occurs but rarely at the placental endor in the center of the cord. The umbilical vessels are usually nearlyoccluded at the seat of the torsion, but still permeable. Thrombi ofvarying consistency are often found in the vessels. Sero-sanguinolentfluid in the abdominal cavity of the foetus, oedema, and cystic degen-eration of the cord, are also pathological conditions frequently attend-ing torsion. II. Knots.—Knots in the umbilical cord, which occur once in twohundred cases, may result from the passage of the foetus through atwisted loop of the cord, whether the passage be effected during pregnancy,by the. spontaneous fetal movements,or at term, by the uterine expulsiveefforts or by the manipulations of theaccoucheur. Knots formed during par-turition are loose and easily
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Keywords: ., bookcentury1800, bookdecade1890, bookidsci, booksubjectobstetrics
