ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Seven out of 8 previous reports indicate a relationship between morbidity or mortality from coronary heart disease and amount of cigarette smoking. Data from 2 California study groups, longshoremen and respondents to a household sample health survey, are presented to show similar relationships. In 4 studies showing mortality, the coronary heart disease death rates for men, in various age groups from 40 to 70 years, who smoked a pack of cigarettes or more per day, generally exceeded the corresponding rates for nonsmokers by from 1 to 7 deaths per thousand per year.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Ten years ago congenital aortic stenosis was generally considered to be uncommon and seldom to carry a grave prognosis. The severity of obstruction of left ventricular outflow could not be directly assessed and suitable surgical procedures for its correction were not available. The changing concepts in respect to this malformation are reflected in the series of 30 patients described. The lesion was found to be relatively common and frequently serious. The severity and site of obstruction could be precisely evaluated and a physiologic basis was provided for the selection of patients for operation providing direct exposure of the aortic valve.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

A biplane cinefluorographic technic for measuring ventricular volume is described and its accuracy and limitations are assessed. Although rather complicated and time-consuming at present, the method permits construction of volume curves and estimation of stroke volume of the left ventricle for several successive contractions in the intact animal or man. This method may prove most useful for physiologic research and ultimately for diagnostic purposes.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Fat tolerance tests with radioactive triolein were performed on a group of patients with coronary atherosclerosis or hypercholesterolemia, and significant differences from normal subjects were observed. The mechanisms and implications of these abnormalities are discussed.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Previous studies have shown abnormalities of the arterial pulse wave in hypertensive subjects of all age groups. The major change has been diminution to disappearance of the dicrotic wave. The pharmacologic differences between epinephrine and norepinephrine offer a means of studying the mechanism of this change in the dicrotic wave. In the present study, normotensive subjects have had transient hypertension induced by the infusion of epinephrine and norepinephrine. The different effects of these drugs on their arterial pulse waves have been recorded.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Some conditions, considered idiopathic or of only partially known etiology, may have an anatomic basis. Among such conditions are possibly certain postural or orthostatic syndromes related to the kidney such as orthostatic proteinuria and orthostatic hypertension. In the present work some anatomic observations on the renal pedicle are presented that seem to give support to this concept.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

The advent of successful surgical treatment of abdominal aneurysm has increased the importance of detection and diagnosis of these lesions. The author has studied the pulse characteristics of abdominal aortic aneurysm and the distal femoral artery, and reports his results.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

The selection of an external site for a radioisotope determination of cardiac output is discussed with respect to satisfying the analytical conditions of the Stewart-Hamilton dilution equation. Examples of both single-chamber and multichamber recording are illustrated, along with a discussion of the difficulties of curve calibration and extrapolation from multiple sites. The development of a method independent of critical placement or patient variability is described.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID

摘要:

Technics for determining the cardiac output by recording the dilution curve of injected iodinated I131human serum albumin from precordial sites have been described. By viewing predominantly either the right or left side of the heart and by rapid delivery of the isotope, quantitation of the dilution curves for cardiac output has been possible without critical requirements for placement of the counter. In a series of 26 determinations in normal patients cardiac output values calculated from simultaneously recorded precordial curves and withdrawn arterial blood showed an average agreement within ± 8 per cent. In a smaller series of 8 determinations on patients in heart failure, an average deviation of ± 9 per cent was found.

ISSN:0009-7322    

出版商:OVID    

年代:1958

数据来源: OVID