A treatise on the science and practice of midwifery . in the uterus afterdelivery and giving rise to secondary post-partum hemorrhage. Therare form of double placenta with a single cord, figured in the accom-panying woodcut (Fig. 90), was probably formed in this way, and thesupplementary portion in such a case might readily escape notice. The placenta may also vary in dimensions. Sometimes it is ofexcessive size, generally when the child is unusually big, but not unfre-quently in connection with hydramnios, the child being dead and shriv-elled. In other cases it is remarkably small, or at leas
A treatise on the science and practice of midwifery . in the uterus afterdelivery and giving rise to secondary post-partum hemorrhage. Therare form of double placenta with a single cord, figured in the accom-panying woodcut (Fig. 90), was probably formed in this way, and thesupplementary portion in such a case might readily escape notice. The placenta may also vary in dimensions. Sometimes it is ofexcessive size, generally when the child is unusually big, but not unfre-quently in connection with hydramnios, the child being dead and shriv-elled. In other cases it is remarkably small, or at least appears to be1 Geburt, May, 1865. PATHOLOGY OF THE DECLDUA AXD OVUM. 233 so. If the child be healthy, this is probably of no pathological import-ance, as its smallness may be more apparent than real, depending on itsvessels not being distended with blood. When true atrophy of the pla-centa exists, the vitality of the foetus may be seriously interfered condition may depend either on a diseased state of the chorion villi Fig. Double Placenta, with Single Cord. or of the decidua in which they are The latter is the morecommon of the two; and it generally consists in hyperplasia of the con-nective tissue of the decidua, which presses on the villi and vessels andgives rise to general or local atrophy. This change is similar in itsnature to that observed in cirrhosis of the liver and certain forms ofBlights disease. It has generally been ascribed to inflammatorychanges, and under the name of placentitis has been described by manyauthors, and has been considered to be a common disease. To it areattributed many of the morbid alterations which are commonly observedin placentae, such as hepatizations, circumscribed purulenl deposits, andadhesions to the uterine walls. Many modern pathologists have doubtedwhether these changes are in any proper sense inflammatory. Whit-taker observes on this point : The disposition to reject placentitis alto-gether inc
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectobstetrics, bookyear1
