. 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 . gued a bad prog-nosis. 3. CHRONIC INFECTIOUS DISEASES A. Tuberculosis.—The earliest studies by Marfan led him tobelieve that low tension is one of the most constant symptomsof phthisis, appearing even in the incipient stage. Of a hun-dred patients, only three showed normal pressure, and thesewere old people with arterio-sclerosis. His unqualified state-m
. 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 . gued a bad prog-nosis. 3. CHRONIC INFECTIOUS DISEASES A. Tuberculosis.—The earliest studies by Marfan led him tobelieve that low tension is one of the most constant symptomsof phthisis, appearing even in the incipient stage. Of a hun-dred patients, only three showed normal pressure, and thesewere old people with arterio-sclerosis. His unqualified state-ment may find some explanation in the fact that Potainssphygmomanometer would be likely to give lower readings inthin persons. Since that time, systematic observations on the blood-pres-sure of consumptives have been published from several Euro-pean sanitoria, by Burckhardt, John, and Naumann, all withthe Gartner tonometer. A number of isolated measurements 232 BLOOD-PKESSURE IN INTERNAL DISEASES of less value are given by Potain (P.), Jarotzny (H. & B.),Hensen (R. R.), and Hayaski (R. R. &G.)- AH agree thathypotension is the rule in the more advanced stages, runningroughly parallel with the impairment of general bodily Fio. 60.—Mabkbd hypotension in aodte tdbebodlosis. (Authors sptygm. 12 cm,) Portion of chart from a case of acute phthisis, with terminal general miliary tuber-culosis (autopsy), who died of hsemorrhage, April ISth, ten weeks from onset of P., male, aged twonty-nine, City Hospital. Burckhardt, in rather a small series, found the pressure regu-larly diminished early in the second stage of the disease, and,in advanced phthisis, rapid pulse and subnormal tension wereinvariable. Light exercise produced a rise in some patientsand a fall in others, never of great extent. Naumann studied 100 cases, from which all who had fever,arterio-sclerosis, heart lesions, pleural adhesions, or albumin orsugar in the urine, were carefully excluded. They were,
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