Some lessons from the study of arterial pressure / by G. A. Gibson.

Date:
[1907?]
Catalogue details

Licence: In copyright

Credit: Some lessons from the study of arterial pressure / by G. A. Gibson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    good example of the range of pressure in endocarditis is given in Fig. 3. The arterial pressure in acute disease furnishes one of the most valuable guides in regard to prognosis, and the brief refer- ences to my observations which have been laid before you will, it is to be hoped, lead you to give some consideration to the subject. When we turn to chronic affections we are confronted by a totally different series of conditions. Instead of rapid effects and swift changes, we meet with alterations of gradual, even of Date Iff 70 us -JO S io is 20 us ao w q Time ! ; WT T ■ • r 300 r f ; 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120 no 100 90 00 70 60 50 40 30 “T jT ; ^7 1 . i J \ ; ' 1 1 — _L - Bf= hi Hr \ * * ’-ifc— — 3 N W \ -1 1 A - \ _ __ T A —■ * 1 t “T - _ 1 Fig. 3.—Chart of pulse rate and arterial pressure from a case of acute rheumatism with pericarditis and endocarditis. The steadiness of the curve sliowiug the pressure readings is ip strong contrast to that giving the pulse rate. The record gives the figures every fifth day at 11 a.m. from 15th June to 19th August. insidious origin; of slow, perhaps of imperceptible development; of continuous, possibly of relentless persistence. Two such con- ditions may be mentioned, both of them taken from the heart. Aortic disease, implying both obstruction and regurgitation at the aortic orifice, presents one of the most striking examples of such affections; it is of great interest to find that in this disease the arterial pressure is of real value in prognosis and therapeutics. In some cases of this disease the systolic pressure is extremely