The causes and treatment of abortion . givethe minute blood-vessels the proper support, hence the ruptureand extravasation. It may accompany disease of the heart, liver,and kidneys, pneumonia, pleurisy, exhausting chronic diseases,fevers, and some uterine and ovarian complaints. A blow orother injury, or a sudden contraction of the uterus, as fromshock, may cause it. Verdier says the fibrous changes met within placentae, are due only to an extravasation of blood, and thechanges resulting from it. Bustamente, who wrote on this subjectin 1848, held that the masses of blood are not due to rupture
The causes and treatment of abortion . givethe minute blood-vessels the proper support, hence the ruptureand extravasation. It may accompany disease of the heart, liver,and kidneys, pneumonia, pleurisy, exhausting chronic diseases,fevers, and some uterine and ovarian complaints. A blow orother injury, or a sudden contraction of the uterus, as fromshock, may cause it. Verdier says the fibrous changes met within placentae, are due only to an extravasation of blood, and thechanges resulting from it. Bustamente, who wrote on this subjectin 1848, held that the masses of blood are not due to ruptureand extravasation, but to thrombosis occurring in the maternalsinuses of the placenta. He pointed out that the circulation inthe maternal sinuses must be very slow, and that it is easy tobring about stasis, by the slowing of the maternal circulation, asby fainting, or loss of blood. Other authorities hold that no extravasation takes place with-out some previous degeneration of structure. Chaipentier, in liisEssay, holds similar -R Placenta at the end of the twelfth week, shewing multiple hseraorrhages into itssubstance, and beneath the amniotic covering. FCETAL CAUSES. lot The extravasation is, in the majority of cases, from the mater-nal system; and some cases are on record where, along with this,there have been apoplexies in other parts of the body in thesame patient. Latoiir records the case of a woman who died ofcerebral apoplexy, after spontaneous abortion, when she wastwenty-eight years old. Priestley relates the case of a lady whowas anxious to have children, and who lost three successively inthe last half of gestation. In each pregnancy, uterine haemorrhagecame on, apparently without cause. No disease of the child, orplacenta, could be detected, but the spiral arteries in the centreof each maternal lobule were found to be in a state of fatty de-generation. In the fourth pregnancy, she went to the eighthmonth, when uterine haemorrhage again began. The child wasbo
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