摘要:

Clinical studies are presented in: (a) One case of partial anomalous pulmonary venous drainage (right common pulmonary vein into inferior vena cava), and (b) four cases of total abnormal pulmonary venous drainage (via "left vena cava" and left innominate vein into the superior vena cava on the right side). One of the latter four cases was verified on exploratory thoracotomy. The diagnosis was based on angiocardiography and heart catheterization, but the conventional chest roentgenogram proved to be quite characteristic of both conditions. The relatively slight impairment of health is stressed in the cases reported here.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

Optically recorded subclavian pulse curves obtained with a simple cup-tambour system give graphic evidence of aortic valve mobility. Differentiation between congenital subaortic stenosis and aortic stenosis was aided by the demonstration in the former of a sharp incisura accompanied by a good aortic second sound; these two features were lacking or rudimentary in the latter. Despite marked auscultatory findings, there is usually little hemodynamic impairment in subaortic stenosis.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

This study attempts to bring into focus certain details which have not been described adequately in textbooks of anatomy. This information is now of considerable significance because of its role in the genesis and surgical treatment of mitral stenosis. Variations in the size and shape of the mitral valve are described, with particular reference to the fact that valve commissures, or junctional zones between the leaflets, occur in the normal valve. Measurements of commissures, chordae tendineae and valve leaflets are presented, with a discussion of the significance of some of these measurements.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

The development of functionally significant interarterial coronary anastomoses was measured in 349 young domestic pigs by injecting the coronary arteries with the lead-agar mass of Schlesinger. By this technic well-developed anastomoses were absent in 132 normal control animals. Among the agents tested, acute coronary artery narrowing, sodium nitrite and anemia were effective in stimulating anastomoses. Anastomoses first began to appear two days after narrowing; they became larger and more frequent after seven days.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

Simultaneously occurring inflammations of the cerebrospinal system and myocardium are rare if one excludes poliomyelitis. The encephalomyocarditis virus and related strains have been shown to produce such lesions. Three instances in man are related and the reasons for a possible virus origin of this disease entity are given. A plea is made for virus studies in other pertinent cases.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

Rats given a parenteral injection of digitoxin (1 &mgr;g. per gram of body weight) were found to excrete approximately 15 to 18 per cent of the dose in their feces. This fecal digitoxin however came from the bile, and there was no evidence of any active secretion of the glycoside by the bowel wall itself.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

The renal excretion of digitoxin was studied in cardiac patients who were (1) decompensated and (2) compensated. It was found that the renal excretion of digitoxin was not changed in patients suffering from left ventricular failure alone but diminished considerably during the first 24 hours of decompensation in patients suffering from both right and left ventricular failure. Patients who were maintained in a good state of compensation by adequate digitalization were found to excrete 30 to 40 per cent of their daily dose of digitoxin. Patients overdigitalized were found to excrete 70 or more micrograms of digitoxin a day. The maximal amount of digitoxin able to be destroyed in the body was considered to be approximately 50 &mgr;g. per day, a finding which explains why dosages in excess of 0.15 mg. almost invariably lead to overdigitalization.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

The present study demonstrates that estrogens reverse previously induced coronary atherosclerosis in cholesterol-fed cockerels, despite the continued presence of the atherogenic stimulus in the diet. Aorta atherogenesis remains unaffected. Hypercholesterolemia is moderately enhanced by estrogen administration; total cholesterol-lipid phosphorus (C/P) ratios are depressed to normal levels, consequent upon estrogen-induced hyperphospholipemia.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

Ten healthy volunteers (five males and five females), 25 to 41 years of age, were exposed to several different environmental conditions in a constant temperature room. It was found that at 20 C. and about 55 per cent humidity, about five hours after the last meal, the behavior of the temperature of the toe in contrast to that of the finger was consistent, reliable and reproducible. These conditions, somewhat cooler than those frequently used, were deemed suitable for testing vasodilator drugs or procedures.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID

摘要:

A patient with mitral stenosis is reported who suffered from exertional cyanosis for the last eight years of his life. Radiologic examination of his chest demonstrated a diffuse pulmonary hemosiderosis, which was confirmed at autopsy. Physiologic studies in the last few weeks of life showed that the cyanosis was not due to impairment of oxygenation of the blood in the lungs but rather to slowed circulation, possibly augmented by local changes in the anatomy of the vessels of the skin.

ISSN:0009-7322    

出版商:OVID    

年代:1952

数据来源: OVID