Learn More
The diagnostic value of transesophageal echocardiography in monitoring the clinical course has been evaluated in 83 patients with echocardiographic evidence of infective endocarditis. A total of 103 vegetations attached to the aortic or mitral valves were detected by use of the transesophageal approach. The patients were monitored for a mean of 74 weeks and(More)
BACKGROUND We studied the effects of recombinant growth hormone (rhGH) on exercise capacity and cardiac function in patients with ischemic cardiomyopathy. METHODS AND RESULTS Seven patients (aged 55+/-9 years) with mild to moderate congestive heart failure (ejection fraction 31+/-4%) who were on standard therapy were included. The patients were studied at(More)
A 60-year-old patient was referred to the hospital for persisting chest pain. The first transesophageal echocardiogram showed localized hematomas without aortic dissection. Several days later the patient suffered complete paraplegia after a second episode of chest pain. The transesophageal echocardiogram now showed a complete aortic dissection. Thus whether(More)
During high-frequency rotational angioplasty (HFRA), myocardial contrast enhancement (echo contrast) was observed by means of two-dimensional echocardiography. In order to evaluate the echo contrast produced by HFRA, an in vitro experimental model was built using a cylinder with the HFRA catheter scanned in a water bath. The cylinder was filled with blood,(More)
BACKGROUND AND PURPOSE Spontaneous echocardiographic contrast (SEC) is correlated to clinical thromboembolic events. We sought to determine the origin of SEC by utilizing direct analysis of left atrial blood. METHODS We examined the blood of 13 patients with and 19 without SEC. Blood samples were taken from the femoral vein and artery and from the right(More)
We tested a newly developed ultrasound contrast agent (LK565) from poly-aspartic acid (PAA; particle size 3 microns; particle content: air) in 15 healthy male probands (20-38 years) in doses of 10, 30 and 100 mg intravenously. One day and immediately before the study a routine laboratory test, an ECG and an EEG were performed. The EEG was continued through(More)
The usefulness of NMR imaging to size infarcted and hypoperfused, ischemic myocardium was assessed in 16 dogs which underwent coronary artery occlusion and reperfusion. During occlusion, technetium-99 microspheres were injected into the left atrium. Following death, the hearts were excised and underwent NMR imaging with a 0.35 tesla magnet, using multiple(More)
Although 2DE is considered the most sensitive method for detecting vegetations in infective endocarditis, the independent clinical significance of these vegetations continues to be debated. To further examine this, we identified 74 patients who were diagnosed as having infective endocarditis over a 54-month period. The 50 patients who underwent 2DE(More)
Previous 2DE studies have suggested that left ventricular wall thickening determinants of regional left ventricular function may be more precise than left ventricular wall motion parameters in the assessment of myocardial ischemia and infarction. To study the relationship between regional wall motion and regional wall thickening abnormalities relative to(More)
Clinical studies suggest that stent design and surface texture are responsible for differences in biocompatibility of metallic endovascular stents. A simple in vitro experimental setup was established to test stent-induced degree of platelet and leukocyte activation and platelet-leukocyte aggregation by flow cytometry. Heparin-coated tantalum stents and(More)