. American journal of obstetrics and gynecology. To these changes we will referlater, and so far as we know, oidy brief references regarding the moreextensive vessel changes have been made, namely, by Sehiekele, Wil-Hams and Heckner, but their relationship to changes occurring afterdelivery wore not pointed out. Although the work of tlie foreign writers 158 THE AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY appeared later than that of Goodall, they make no reference to thisauthor. Goodall studied only uteri in the puerperium. His earliest case wasforty-four hours postpartum. Concerning his find
. American journal of obstetrics and gynecology. To these changes we will referlater, and so far as we know, oidy brief references regarding the moreextensive vessel changes have been made, namely, by Sehiekele, Wil-Hams and Heckner, but their relationship to changes occurring afterdelivery wore not pointed out. Although the work of tlie foreign writers 158 THE AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY appeared later than that of Goodall, they make no reference to thisauthor. Goodall studied only uteri in the puerperium. His earliest case wasforty-four hours postpartum. Concerning his findings in this specimenhe states that among the vessels of the uterine wall in the direct path ofthe placental circulation, both in the lower mucosa and in the , there are some which show changes of such a character thatthe process must have taken days at least in its development. Thesevessels, it is true, are relatively few in number but are often of verylarge size and therefore must have played no small part in the placental. Fig. 3.—Ob. Path. No. 3290. Oicein-Van Gieson Stain. Five clays postpartumuterus, showing marlteii swelling of the intima and meiiia, with beginning breakingup of internal elastic membrane. circulation. A close examination of such a vessel shows the changesalready described affecting the vessels before labor. These changesas regards the artery are briefly: The swelling of the internal elasticmembrane which later breaks up and is diffused through the remainingtliickened and degenerating vessel wall. During this process of swelling,which in many instances is quite enormous, they appear in differentstages and show a distinct change in staining reaction. Weigert-VanGieson stain is used. With the fiist swelling the elastica appears blackand this is gi-adually changed into a deep, port-wine red color, whichlater changes to a brick-red and then fades into a pale yellow. When SCHWARZ AND MC XALLEY : TTERIXK VESSELS DURING PREGNANCY 159 th
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