[Revascularization of the myocardium by myocardial terebration in the animal experiment].
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Animals↗
Biomedical subjects
E Hoffmann
Publications and source records attributed to E Hoffmann.
[Distribution pattern of coronary vessels and the presentation of supply areas of the large coronary vessel stems. Injection technic study on cadaveric hearts].
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Adolescent↗
[Effect of collateral circulation on myocardial perfusion using thallium-201].
BACKGROUND: The influence of collateral circulation (CC) on thallium-201 myocardial uptake was studied in 69 patients with coronary artery disease who underwent a coronary angiography. MATERIALS AND METHODS: According to Cohen and Rentrop a CC of 2nd and 3rd degree only was considered. A stress-early redistribution 201Tl scintigraphic protocol was utilized. The images were divided into five segments in each projection; the segments with higher uptake were considered as normal (100%). 1035 segments were analyzed and each segment was related to the donor artery on the basis of the 201Tl and angiographic evaluation. Patients were distinguished in single or multi-vessel disease with or without CC. In collateralized segments related to occluded or functionally more severe coronary stenosis, a somewhat significant prevalence of normal thallium-201 perfusion was observed, while in the non collateralized segments a higher prevalence of irreversible thallium defects was observed. CONCLUSIONS: The data suggest that CC is one of the factors responsible for the presence of normal scintigraphic images in patients with severe coronary stenosis or complete occlusion.
Angiocardiography↗