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At least 253 records · Page 14Linked to original sources
PubMed1985

Laser Doppler flowmetry and laser photometry for monitoring free flaps.

A device based on the laser Doppler perfusion meter, "Periflux", was constructed for continuous post-operative monitoring of the circulation of free flaps. It was evaluated in 17 consecutive clinical free flaps, four of which were beset by circulatory complications. In all 17 cases the device provided reliable and readily accessible information concerning the state of flap blood flow.

Humans↗
PubMed1975

[Quantitative estimation of the lymphatic bed density of film preparations (of organ membranes) using the luxometry (photometry) method].

The essence of the luxmetry technique is that we can make a conclusion of the density of lymph capillaries per a unit of the serous or other membrane on the basis of the difference in illumination of the microscope field with a cleared preparation without injection of lymph vessels and the preparation where the lymphatic network is injected with the Gerota's mass absorbing a part of light. With the help of the above method of luxmetry we can obtain new data about local and developmental changes in the density of lymph capillaries of the abdomen, epicardium, submucous basement of the sigmoid colon and skin as well as in some functional (pregnancy) and pathological states.

Histological Techniques↗
PubMed1975

[Significance of some coefficients resulting from dye photometry in the functional characterization of mitral defects].

One hundred and eighty six patients with mitral defects were examined and subdivided into four groups according to the basic clinical and instrumental tests: 59 with pure, 46 with prevailing mitral stenosis, 37 with prevailing and 44 with pure mitral insufficiency. The patients, within the pointed group were subdivided into subgroups, depending on the character of the auricular rhythm, the presence of accompanying tricuspid insufficiency with hemodynamic significance and cardiac decompensation. The circilatory times, TA, TD and TC were calculated for all the patients and especially the coefficients (see article) from the dye dilution curves. The analysis covers only patients from the different groups without other defects and cardiac decompensation. Fluctuations of the minimal and maximal values of TA, K1, K2, and K3 are presented. Their average values are calculated as well as the square deviations. In sinus rhythm and compensated heart, the combination of the values for K1 over 1,80 and K2 over 1,50 in prevailing and for K1 over 1,90 and K2 over 1,60 in pure mitral insufficiency might be used as a criterion for differentiation of pure and prevailing mitral stenosis. The close values in pure and prevailing mitral stenosis, as well as in pure and prevailing mitral insufficiency do not present a possibility to be used in the differentiation of the groups with hemodynamic significance of stenosis and insufficiency. In arrhythmia absoluta, accompanying tricuspid insufficiency and cardiac decompensation, the coefficient K1 and K2 have no value in mitral defect characterization. The close average values of TA and K3 for all patient groups devaluate their importance as functional indices of mitral defects.

Arrhythmias, Cardiac↗