Placenta prævia : its history and treatment / by William Read.

  • Read, William, 1820?-1889
Date:
1861
Catalogue details

Licence: Public Domain Mark

Credit: Placenta prævia : its history and treatment / by William Read. Source: Wellcome Collection.

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    result rather to be expected from the increased capacity of the uterine vessels, as pregnancy advanced to its termination. It is therefore better to terminate the labor, after it has really begun, as soon as compatible with the safety of the patient, than to endeavor to conduct the pregnancy to the full term. 2d. The danger to the mother is less when the os uteri is com- to the mother, than those occurring at the full time, with the exception of those before the seventh month, which rarely prove fatal, in consequence of the unde- veloped condition of the blood-vessels of the womb at that early period.” Without in the least impugning the accuracy of Mr. Trask’s tables, it must be admitted by all, that other things being equal,*the greater the number of cases from which con- clusions in regard to any point are drawn, the greater will be their accuracy; and as the number of cases in the preceding tables, which have been used for the pur- pose of comparison, is nearly three times greater than those from which Dr. Trask arrived at his results, it may be assumed, that they more nearly represent the truth in regard to this point, than do his. In the first table, in which the time of labor was at various periods of the preg- nancy, from the 5th month to the full term, all recovered. In table 2d there was one death each, at the 7th, 8th, and 9th month. In table 3d, where the time ranged from the 3d month to full term, one died at the 8th month. In table 4th, one each at 6 months, 9th month, and full term. In table 5th, four at 7 months, two at 7J months, one at the 8th month, and one at 8J months. In table 6th, one at the 5th month, one at the 6th month, one at 6 months, two at 6£ months, three at the 7th month, seven at 7 months, one at months, nine at the 8th month, ten at 8 months, eight at 8J months, five at the 9th month, eighteen at 9 months, and six at a period far advanced. In table 7th, the cases were all of them within a few weeks of full term; and in table 8th, where the mother was undelivered at death, the same fact holds good. Bringing these numbers together, in a tabular form, we have At the 5th month 1 “ the 6th month 1 “ 6 months 2 “ 6J “ 2 “ the 7th month 3 “ 7 months 12 “ 7J “ 3 At the 8th month 12 “ 8 months 10 “ “ 9 “ the 9th month 7 “ 9 months 19 “ far advanced 6 Of the fatal cases in the Appendix there were At 6£ months 1 “ the 7th month 1 “ 7J months 1 At the 8th month “ the 9th month “ 9 months 0 .2 1 From this it appears, that of the 95 fatal cases, in which the date of the pregnancy is recorded, 67, or more than two-thirds, occurred within less than 8 weeks of the full term; 35 within less than 6 weeks; and 26 during the last month.