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Differential arterial tension
435
ABSTRACTS
ward and to the left and in one case appcarcd rotated to the right. Although the heart is displaced, electrocardiograms fail to reveal any consistent variation of the electrical axis, probably because the heart was displaced as a whole. It is concluded that uncomplicated funnel chest does not appear to have any clearly deaned effect upon the functional capacity of the heart unless the deformity the lack of sgntptums can probabIy he e.
Winifred:
Spontaneous
Rupture
of the Aorta.
Am. .1.
An analysis is given of five cases of so-called spontaneous rupture of the aorta. A common underlying process was administered in all cases consisting of a peculiar noninflammatory degeneration of the media affecting the muscle and elastic fibers due to a variety of factors. Similar lesions precede the development of dissecting zmeurysms. A peculiar medial degeneration was found aside from spontaneous rupture or dissecting aneurysm with increasing frequency, with advancing age either as a diffuse process or in sporadic distribution through the aorta. The lesions have no relation to syphilis.
Stieglitz, Edward J., and Probst, Duane W.: Differential M. SC. 184: 336, 1933.
Arterial
Tension.
Am.
J.
The arterial tension was measured in both arms in a series of six hundred individuals the difference in systolic tenranging in age from eighteen to sixty years. Whenever sion was 10 mm. Hg or greater or when the diastolic difference was 5 mm. Hg or greater, an asymmetry was declared to exist. The incidence of asgmmetry was slightly over 15 per cent of this group. It was found to be more common in persons with elevated arterial tension and in those with vasomotor instability. Scs was not a factor. Elevation of the systolic and diastolic tension was somewhat more frequent on the right than on the left. Arteriolar spasticity, cervical rib, aortitis, injury to an extremity with atrophy, arteriovenous aneurysm and central trophic disturbances as occ,ur in tabes dorsalis, are all factors to be considered in eralua.ting the causation of persistent asymmetry.
Adams, James M.: Some Racial Differences in Blood Pressures and Morbidity Group of White and Colored Workmen. Am. J. M. SC. 184: 342, 1932.
in a
A study has been made of 28,221 blood pressure readings on a group of approximately 14,000 industrial employees, between the ages of eighteen and sixty-fire years, approxiAll the examinations mately one-third of whom were colored and the remainder white. were made on apparently healthy individuals and were noted on examinations of applicants for employment (9000) and annual health examinations (5000). None were An avincluded of individuals who were sick or who consulted for medica advice. erage of three and four-fifths readings at different ages were made of the 5000 employes represented or 19,000 readings and a single reading of the 9000 applicants for employment. The period covered was from 1920 to 1930 inclusive. From this study the following observations are apparent: The blood pressures of the colored are higher than those of the white. The pressures after forty years of age adDamage to the sortie valve ocvanced more rapidly in the colored than in the white. Albuminuria is more curs earlier and more frequently in the colored than in the white. often functional in the white persons and more often indicative of nephritis in thca colored. The frequency of illness was the same in both races. The recuperative powers of the colored are less than those of the white. The white race is more suseeptible to respiratory and other infections, to gastrointest.inal diseases, especially appendicitis and gas.
ABSTRACTS
ward and to the left and in one case appcarcd rotated to the right. Although the heart is displaced, electrocardiograms fail to reveal any consistent variation of the electrical axis, probably because the heart was displaced as a whole. It is concluded that uncomplicated funnel chest does not appear to have any clearly deaned effect upon the functional capacity of the heart unless the deformity the lack of sgntptums can probabIy he e.
Winifred:
Spontaneous
Rupture
of the Aorta.
Am. .1.
An analysis is given of five cases of so-called spontaneous rupture of the aorta. A common underlying process was administered in all cases consisting of a peculiar noninflammatory degeneration of the media affecting the muscle and elastic fibers due to a variety of factors. Similar lesions precede the development of dissecting zmeurysms. A peculiar medial degeneration was found aside from spontaneous rupture or dissecting aneurysm with increasing frequency, with advancing age either as a diffuse process or in sporadic distribution through the aorta. The lesions have no relation to syphilis.
Stieglitz, Edward J., and Probst, Duane W.: Differential M. SC. 184: 336, 1933.
Arterial
Tension.
Am.
J.
The arterial tension was measured in both arms in a series of six hundred individuals the difference in systolic tenranging in age from eighteen to sixty years. Whenever sion was 10 mm. Hg or greater or when the diastolic difference was 5 mm. Hg or greater, an asymmetry was declared to exist. The incidence of asgmmetry was slightly over 15 per cent of this group. It was found to be more common in persons with elevated arterial tension and in those with vasomotor instability. Scs was not a factor. Elevation of the systolic and diastolic tension was somewhat more frequent on the right than on the left. Arteriolar spasticity, cervical rib, aortitis, injury to an extremity with atrophy, arteriovenous aneurysm and central trophic disturbances as occ,ur in tabes dorsalis, are all factors to be considered in eralua.ting the causation of persistent asymmetry.
Adams, James M.: Some Racial Differences in Blood Pressures and Morbidity Group of White and Colored Workmen. Am. J. M. SC. 184: 342, 1932.
in a
A study has been made of 28,221 blood pressure readings on a group of approximately 14,000 industrial employees, between the ages of eighteen and sixty-fire years, approxiAll the examinations mately one-third of whom were colored and the remainder white. were made on apparently healthy individuals and were noted on examinations of applicants for employment (9000) and annual health examinations (5000). None were An avincluded of individuals who were sick or who consulted for medica advice. erage of three and four-fifths readings at different ages were made of the 5000 employes represented or 19,000 readings and a single reading of the 9000 applicants for employment. The period covered was from 1920 to 1930 inclusive. From this study the following observations are apparent: The blood pressures of the colored are higher than those of the white. The pressures after forty years of age adDamage to the sortie valve ocvanced more rapidly in the colored than in the white. Albuminuria is more curs earlier and more frequently in the colored than in the white. often functional in the white persons and more often indicative of nephritis in thca colored. The frequency of illness was the same in both races. The recuperative powers of the colored are less than those of the white. The white race is more suseeptible to respiratory and other infections, to gastrointest.inal diseases, especially appendicitis and gas.