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Biomedical subjects

G F Dvortsin

Publications and source records attributed to G F Dvortsin.

5 recordsLinked to original sources
PubMed1979

Homologous blood syndrome in dogs. Effect of erythrocyte and platelet antibodies.

Isovolemic perfusion of 50% of the recipient circulating blood volume was carried out in intact mongrel dogs using whole donor blood as well as plasma or platelet suspensions in saline. Perfusion against the background of circulating red blood cells (RBC) or platelets antibodies in the donor or in the recipient was followed by severe and sometimes fatal homologous blood syndrome in a majority of the dogs. Weak and short-term reactions were seen in a few dogs if red blood cells and platelet antibodies were absent.

Animals↗
PubMed1976

[Experimental basis of a new method of determination of coronary blood flow with the aid of electromagnetic flowmeter].

Canine experiments have demonstrated the high precision of measurements performed with the aid of modern electromagnetic flowmeters (1-2%). Under such conditions, cuff transducers of a large diameter permit to record low volume flow rates. Proceeding from this observations, the authors have introduced and experimentally substantiated a new method of measuring the coronary blood flow that consists in the determination of the minute volume gradient between the pulmonary artery trunk and the ascending aorta. In contrast to the existing techniques of coronary flow measurements, the introduced method has several advantages (it takes into account the total coronary flow, permits high precision and an unlimited number of repeated measurements in a dynamic observation), but it can be employed only in the course of surgical interventions on the heart after the ascending aorta has been separated from the trunk of the pulmonary artery.

Animals↗