The clinical study of blood-pressure : a guide to the use of the sphygmomanometer in medical, surgical, and obstetrical practice; with a summary of the experimental and clinical facts relating to the blood-pressure in health and in disease / by Theodore C. Janeway ... seventy-five illustrations in the text, many in colors.

  • Theodore Caldwell Janeway
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: The clinical study of blood-pressure : a guide to the use of the sphygmomanometer in medical, surgical, and obstetrical practice; with a summary of the experimental and clinical facts relating to the blood-pressure in health and in disease / by Theodore C. Janeway ... seventy-five illustrations in the text, many in colors. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

    243/340 (page 219)
    25 mm., are of no serious import. Crile's figures are of partic- ular interest. In 115 cases the highest pressure =138 mm, (R. R. 5 cm.). lowest = 74 mm. mean = 104 mm. The mean pressure of all cases, by weeks of the disease, was as follows: first week, 115 mm.; second, lOG mm.; third, 102 mm.; fourth, 90 mm.; fifth, 98 mm. Nothing could better illustrate the gradual development of hypotension. Hensen, Neisser, and Hayaski also report on smaller groups of cases. a. Haemorrliage and Collapse.—A slowly progressive fall in pressure is evidence of increasing weakness of the vaso-motor centres, and of the danger of impending collapse. It calls, fffff^^^f.. .... MM m 190 ISO 170 IM 150 140 130 120 110 100 90 80 70 60 SO 40 ,.J^i„LJ-_.LI_4_iJ4-i_iJ-J J.J^. .i_LiU-.L..ij.aJ-i4-X^...._i-i-Ja in -i:- f _jj_j Lj.-i^4i--iJ-J-iar>a_j_j_i_i_i I I ; j >i i3 i ! c«Tj i ! I ! i ! I ~]4-p4rti|i-ri?tTTTt-tTT i ! n i i^45 1 i ii -■~rT-rroi;r|it n r I i I >^ ^ 1 I m 1 ♦i PULSE t40 100 90 80 70 60 SO 40 30 20 to Fig. 54.—Typhoid fever—intestinal haemorrhage. (Cook's sphygm. 5 cm.) Blood-pressuro level broken by a sharp fall with the fir.st hsemorrhagc, with no pre- cedent rise in tension—distinction from intestinal perforation. The fall continues with a second haemorrhage. mi -i, • Gradual return of blood-pressure after the cessation of hremorrhage, The physio- logical return aided, though the curve is not materially altered, by a small dose fgr.Vso) ofstrychnin and a small saline infusion. (From Cook and Briggs, Chart ISio. .vXIII.)