. American journal of obstetrics and gynecology. refore, evident that there is considerable diversity ofopinion regarding both the etiology and significance of placentalinfarcts. One very important question to decide is whether or notthey are an etiologic factor in the toxemias of pregnancy. Young is one of the most recent ardent advocates of the theorythat local autolytic changes in the placenta are responsible for theexistence of pregnancy toxemia. If the placenta is retained suffi-ciently long following these changes, infarct formation will, in hisopinion, result. There are a number of diff
. American journal of obstetrics and gynecology. refore, evident that there is considerable diversity ofopinion regarding both the etiology and significance of placentalinfarcts. One very important question to decide is whether or notthey are an etiologic factor in the toxemias of pregnancy. Young is one of the most recent ardent advocates of the theorythat local autolytic changes in the placenta are responsible for theexistence of pregnancy toxemia. If the placenta is retained suffi-ciently long following these changes, infarct formation will, in hisopinion, result. There are a number of difficulties in the way of theunqualified acceptance of this theory. (1) It is quite apparent thatold white infarcts cannot be responsible for toxemia. One frequentlyobserves these white infarcts in cases who have presented no signs ADAIR: PLACENTA INFARCTS 561 of toxemia of preguancy. It must be some recent change in theplacenta which is responsible for the development of toxins. (2)Admitting the truth of the assertion that these infarcts are much.
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