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dc.contributor.authorRitchie, Alisonen
dc.date.accessioned2019-02-15T14:18:24Z
dc.date.available2019-02-15T14:18:24Z
dc.date.issued1928
dc.identifier.urihttp://hdl.handle.net/1842/33689
dc.description.abstracten
dc.description.abstractA placenta, the implantation of which encroaches upon that part of the uterus which will afterwards become the lower uterine segment, is termed Placenta Praevia. Of this, there are three varieties: (a) Central, where the placenta completely covers the os; (b) Marginal, where the placenta reaches the margin of the internal os; (c) Lateral, in which the edge of the placenta dips into the lower uterine segment. The two last are often grouped together as Partial Placenta Praevia, on account of the arbitrary nature of the words lateral and marginal, which, by different observers, are respectively used to denote different degrees of praevia, at unstated degrees of dilatation of the internal os. It may here be observed that such terms may be misleading unless at the same time the size of the os is stated, for it follows that a placenta which may be felt to cover the os completely when it is dilated to admit one finger, may only partially cover it by the time the os has reached the size of a teacup. The words Central and Partial will here be employed to describe the situation of the placenta, as it would be recognised Clinically with the os dilated to one finger. Often when the patient is first seen the os is further dilated, and in these cases the relationship between the placenta and the cervix at a "one finger" dilatation has to be assumed. That placenta praevia is a serious condition for both mother and child is shown by the mortality figures obtained by taking the average of 20 observers, the maternal mortality being 10.e% and the foetal mortality 50%. The incidence amongst hospital cases is approximately 1.2%. Whilst the variety of praevia, the amount of blood loss, and the general condition when first seen, have considerable bearing upon the prognosis for the mother, judicious treatment is undoubtedly an import_ ant factor. It is to this side of the subject that most attention will be directed in this paper, in the hope that further light may be shed upon the right choice of method of treatment under varying circumstances. With this in view, the findings of a number of observers will be compared with the findings resulting from an analysis of 192 consecutive cases, which have been admitted to the Edinburgh Royal Maternity Hospital, during the past 5 years 1923 -27, inclusive.en
dc.publisherThe University of Edinburghen
dc.relation.ispartofAnnexe Thesis Digitisation Project 2019 Block 22en
dc.relation.isreferencedbyen
dc.titlePlacenta praevia: present day views regarding placenta praevia with special reference to treatment, and including an analysis of 192 cases admitted to the Edinburgh Royal Maternity Hospital during the five years 1923-27en
dc.typeThesis or Dissertationen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnameMD Doctor of Medicineen


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