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Biomedical subjects

M Barbacki

Publications and source records attributed to M Barbacki.

At least 19 recordsLinked to original sources

Impedance cardiography in normal children.

Cardiac output, cardiac index (cardiac output/body surface) and stroke volume were investigated in 20 normal children by means of impedance cardiography. Significant differences were found in the mean values of cardiac output and cardiac index between both sexes, as well as in means of cardiac index between younger and older children. The obtained data generally agreed with the results of other investigators performing the examination by using the same technique and other methods.

Adolescent↗

Estimation of the correlation between the transcutaneous aortic flow velocity curve and impedance cardiogram in normal children.

83 measurements of stroke volume from an impedance cardiogram and of the corresponding area under the systolic complex of the aortic flow velocity curve obtained by means of the transcutaneous ultrasound Doppler device were carried out in 15 normal children. Between the "ideal" complexes and those requiring a little reconstruction (below 10% of maximal height of the given complex) and corresponding stroke volumes, significant correlation and regression coefficients were found. It has been suggested that the aortic flow velocity curve obtained by means of the transcutaneous ultrasound nondirectional Doppler device would be helpful in approximately estimating the stroke volume in normal children.

Adolescent↗

Aortic blood flow patterns: a transcutaneous Doppler study.

In 35 normal children some variables of the aortic arch blood flow were studied by transcutaneous ultrasonic Doppler technique. Mean values for peak velocity (V), acceleration in early systole (Acc), duration of the acceleration phase, as well as the area under the early phase of flow systolic complex (S) were calculated. A significant difference in S value was found between girls and boys. Some significant correlation and regression coefficients were found between the mentioned indices of the aortic blood flow on the one hand, and the weight, height, age and heart rate on the other. The highest values for the correlation coefficients occurred in girls between V and Acc on the one hand, and the weight of the subjects on the other.

Adolescent↗