Left ventricular function after myocardial infarction.

We assessed simultaneously left ventricular filling pressure and stroke index with left ventricular ejection fraction in 22 patients who had had their first transmural myocardial infarction about 11 days before the examination. Eleven were classified as anterior myocardial infarctions and 11 as inferior. Left ventricular ejection fraction was determined by equilibrium radionuclide angiocardiography.

Cardiac blood pool imaging--a clinical comparison between red blood cells labeled with 99mTc in vivo and in vitro and 99mTc-labeled human serum albumin.

In 25 patients undergoing radiocardiographic determination of ventricular function, three methods for blood pool imaging were compared. 99mTc was used to label human serum albumin (HSA) and red blood cells (RBC) in vivo or in vitro. The activity concentration of 99mTc in blood was measured during 2 hrs after injection and a significantly higher concentration was found with RBC compared to HSA already after 15 min.

Adjustments of circulation including blood pressure to orthostatic reaction and physical exercise during application of a low estrogen dose steroid oral contraceptive.

The orthostatic circulatory reaction, the physical working capacity on a bicycle ergometer, the blood pressure reactions at rest both during and after the ergometer test, the total hemoglobin content and the heart volume in the supine position were all determined on four separate occasions in 34 nulligravidae who were taking a low estrogen dose steroid oral contraceptive consisting of 30 micrograms of ethinyl estradiol and 150 micrograms of levonorgestrel (known as Neovletta, Schering AG). These examinations were performed once prior to the commencement of this medication, and 6, 12 and 24 months thereafter. The orthostatic pulse and blood pressure reactions taken on these subjects standing upright for a period of eight minutes were pronounced up to and including the 12 month control, but decreased thereafter.