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At least 19 recordsLinked to original sources
PubMed1978

Infarct as a stress agent: life history and personality characteristics in improved versus not-improved patients after severe heart attack.

Fifty-eight male subjects admitted to an intensive coronary care unit were interviewed and underwent psychometric testing on the second--third day after a severe heart attack (infarct). Seven-ten days following admission, the clinical condition of the patients was evaluated by the attending cardiological staff and rated on a three point scale. The patients were divided, on the basis of the clinical rating, into two groups: improved (N = 25) and non-improved (N = 33). Life history characteristics, MMPI personality profiles, and State-Trait anxiety scores were then compared for the two groups. The not-improved group showed the higher scores on almost all the MMPI scales, higher anxiety scores and more work-related problems than the improved group. Such data give some empirical support to the hypothesis that the physiological and hemodynamical conditon of the cardiac patient is in some way correlated with the patient's style of coping with stress, and his history of previous life stress situations.

Adaptation, Psychological↗
PubMed1975

[New bases and theories from improving angio-cine-densitometry. II Improvements in the signal-to-noise ratio by the quotient method in cine densitometry].

In radio-cine-densitometry, random variations can be smoothed and reduced in two ways: temporal (frame to frame) and spatial (each frame). Both methods may, however, alter the signal measurements. The advantage of quotient cine-densitometry depends on the elimination of interference or random variations without changing the signal. Elimination of the variations occurs during signal recording. Amongst others the following are eliminated: variations in mains voltage, uneven development, absorption by other tissues and organs. A more suitable signal-to-noise ratio can be obtained. If an artery or a vein are opacified simultaneously it is possible, by means of quotient cine densitometry, to distinguish the arterial and venous phase and to analyse these separately from the overlying tissues.

Absorptiometry, Photon↗
PubMed1979

[Improved radiological diagnosis in the stomach by means of an improved contrast material (author's transl)].

Our experience with a cheap contrast medium, which we prepare ourselves, is described, stretching over a period of 18 months. It is based on the bubbly barium first described by Op den Orth and is made by means of carbon dioxide in a soda water syphon. It is better for detailed contrast examination of the stomach than the commercially available contrast media. It is thought that this is due to optimal viscosity for wetting of the mucosa, optimal size of the barium sulphate particles, which are larger than one micron, and greater distension of the stomach due to greater quantities of CO2. The use of bubbly barium for routine examination of the stomach, using double contrast and hypotonia with graded compression, almost always results in demonstration of the areae gastricae in large parts of the stomach. We regard this as a sign of a good examination, since we are then able to demonstrate small lesions such as complete or incomplete erosions, ulcer scars or flat ulcers.

Barium Sulfate↗
PubMed1975

[Further improvement of the ACD-AG protective solution for blood. III. Improvement of the oxygen transport function of erythrocytes in sorbitol xylitol pyruvate solutions with elevated Ph].

If the pH value in the ACD or in the ACD-AG storage solution is enhanced, the glucose in the autoclaving with undergo a caramelizing process. For this reason glucose was replaced by sorbite in the storage solutions with a pH value of 6.0 and additions of xylitol and pyruvate. The initial pH value in the blood amounted to 7.3. The content of 2.3 DPG of the erythrocytes remained fully preserved in the blood with sorbitol and additions of xylitol and pyruvate during the first 2 weeks of storage and decreased to 30% only in the third week. There were only slight amounts of 2.3 DPG in the ACD-AG blood at that time of storage. Up to the third week of storage the ATP content of erythrocytes as well as the haemoglobin level in the plasma revealed no essential differences between stored blood with sorbitol and xylitol as a substrate or glucose + xylitol respectively. The quick decrease of the ATP level to zero and the simultaneous strong increase of haemolysis in the sorbitol blood within the fourth week of storage is discussed in connection with a lowering of the NAD/NADH2 quotient. For the purpose of keeping the 2.3 DPG level of erythrocytes a storage solution with sorbite and xylitol (ASCX-AG-Pyr 10mM) seems to be well suited for a storing time of 2---3 weeks at first.

Adenosine Triphosphate↗