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Biomedical subjects

I Christiansen

Publications and source records attributed to I Christiansen.

At least 19 recordsLinked to original sources

[Enzyme diagnosis of acute myocardial infarction].

During the past decade, determinations of enzyme concentrations in the blood in patients admitted with suspected acute myocardial infarction has been of increasing significance not only for early elucidation but also for establishing the correct diagnosis. This is partly the result of methods which can demonstrate the presence of myocardium-related isoenzymes and also because of the physiological basis for the release of enzymes and their metabolism bas been elucidated. In the present report, guidelines for clinical employment of enzyme investigations in acute myocardial infarction are presented. By means of blood sampling twice or thrice within a time interval af approximately 8-24 hours after the presumed time of infarction and determination of a limited number of enzymes in these samples, it is possible to exclude or confirm the presence of an infarct with high probability.

Humans

CHOP versus prednisolone + chlorambucil in chronic lymphocytic leukemia (CLL): preliminary results of a randomized multicenter study.

Five hundred and fifty consecutive patients with newly diagnosed B-CLL have been registered and classified in a Danish multicenter study. The study includes a protocol for primary treatment of patients in stage B or C (at diagnosis or after demonstrated progression), below 76 years of age, and without complicating serious disease. Until now 144 such patients have been randomized to either prednisolone (PRD) plus chlorambucil (CLB) 5 days every 4 weeks or monthly intensive CHOP treatment. Twenty-nine percent of the treated patients achieved CR on PRD + CLB versus 63% on CHOP (p less than 0.005). No response was found in 29% versus 18%, respectively (NS). A significant difference in survival between patients achieving CR, PR and NR was also demonstrated, whereas to date no difference in survival could be demonstrated between the two regimens. The toxicity was limited, and only 2 treatment-related deaths occurred in approximately 700 CHOP treatment series.

Adult

Changes in cisternal fluid potassium concentration following cardiac arrest.

The purpose of this study was to measure the changes in potassium concentration in human cisternal cerebrospinal fluid following successful resuscitation after cardiac arrest. We also wished to examine whether or not changes in potassium concentration in the cisternal cerebrospinal fluid could be correlated to the ability to regain normal cerebral function. 41 patients were studied, of whom 20 regained consciousness and 21 did not. In those who did not regain consciousness there was a significant increase in the potassium concentration found in samples obtained between 40 and 50 min, and between 50 and 60 min after cardiac arrest. The potassium concentration decreased to normal values during the following hours. Lumbar spinal fluid did not reflect the changes in cisternal fluid. The results suggest that the potassium concentration of cisternal cerebrospinal fluid, obtained soon after cardiac arrest, might give an indication of the degree of cerebral damage caused by cardiac arrest.

Cisterna Magna