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- W1489339568 abstract "I N A previously reported study1 of the pulse and respiratory varial ions of 180 normal women during labor, it was observed that the pulse and respirations remained practically unchanged throughout the first stage of labor. With the advent of bearing down efforts ill the second stage of labor 4 per cent of patients showed a rise of the pulse rate to above 110 per minute with respirations of not. over 24 per minute. Such elevations were considered as established only when they persisted for at least forty-five minutes. Thirteen per cent showed a rise in t,he respiratory rate to above 24 per minute with the pulse rat.e not over 110, and 7 per cent showed a rise of both pulse and respirat,ory rates above these values. The levels of 110 and 24 were chosen arbitrarily since a large percentage of patients approached or reached these values but relatively few esceeded them. Prolonged labor and prulungetl second stage were found to predispose to such rises but no definite influence of analgesia or of the particular analgesic used could be observed. We have extended these studies to women wit,h rheumatic+ heart disease to note if their pulse and respiratory variations during labor differed in any way from those of normal women su as to give a warning of the approach of serious cardiac insuficiency~. The 200 patients studied were first seen in the ante-yartnm clinic at various stages of t,heir pregnancy. The diagnosis of the particular form of heart disease was made at this t,ime and sometimes was amended as later observations seemed t,o indicate. The patients wer(’ classified as IO their functional capacit,y (Class 1. 2. 3, or 4) according to t,he criteria uf the New York Heart Association, and as they were followed progressively in tile antepartum clinic, this diagnosis was changt~cl as indicat,ions seemed t.0 warrant. At the onset, of labor or as soon thereafter as the patient was admitted t,o the hospital, the pulse and respirations were counted every fiftc(:rr minutes between pains and charts made of this similar to those appear-~___." @default.
- W1489339568 created "2016-06-24" @default.
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- W1489339568 date "1942-09-01" @default.
- W1489339568 modified "2023-09-25" @default.
- W1489339568 title "The pulse and respiratory rates during labor as a guide to the onset of cardiac failure in women with rheumatic heart disease" @default.
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- W1489339568 doi "https://doi.org/10.1016/s0002-9378(42)90474-5" @default.
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