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At least 613 records · Page 34Linked to original sources
PubMed1977

[Differentiation of intraventricular blocks by means of electrocardiography and vectorcardiography].

The examination was conducted in 270 patients with ischaemic heart disease and signs of intraventricular conductivity disorders. The most demonstrative signs were singled out in ECG and VCG recordings that permit one to differentiate unifascicular, bi- and trifascicular blocks. Emphasis is made on the diagnosis of focal changes in the myocardium in the presence of excitation conduction disorders in the above mentioned branches of the bundle of His.

Adult↗
PubMed1996

Two-year dynamics of vectorcardiography parameters in patients with primary pulmonary hypertension.

VCG data (McFee--Parungao system) were obtained from 12 patients with primary pulmonary hypertension (PPH). During 2 years, VCG investigations were repeated from 2 to 5 times. Various VCG-parameters were analyzed. Space and horizontal QRS areas, projection of integra QRS vector to axis y and the sum of Rx and Sx were diagnostically most significant. Their values proved abnormal at the beginning of survey. In the course of observation, states of the right heart chambers together with VCG-parameter dynamics were investigated in every patient. States of the right cardiac chambers improved in 4 patients. In all of them the parameter turned to normal values. In two patients, during the monitoring time monotonous increase of parameters was observed, with the state of the right heart chambers declining. In 6 patients, state of right heart chambers appeared relatively stable. In these patients, values of all the parameters were either stable or insignificantly changeable around some mean values. Thus, the dynamics of VCG-parameters makes it possible to estimate adequately the states of the right cardiac chambers in PPH patients. (Tab. 1, Fig. 4, Ref. 4)

Adolescent↗
PubMedDate not supplied

[3-dimension vectorcardiography. Preliminary study].

The authors study individuals in which the amplified electrical signal is fed into an analogic-digital converter in which the memory is stored in a mini-computer which at the same time feeds into two digital-analogic converters to obtain the reading. They conclude that the treatment of this curve in space is useful in the diagnosis of some heart diseases if some parameters such as acceleration and torsion are studied.

Electrocardiography↗
PubMed1976

[Relationship between frequency components of phonocardiography, vectorcardiography parameters and anatomic data].

Regarding heart volume, fundamental frequency of the first and second part of first heart sound (SI), vectorcardiographic parameters and constitutional data, the formerly found strong correlation between fundamental frequency of the first part of SI and heart volume was re-established. Heart volume guess got even better utilizing certain VCG-parameters, whereas constitutional measurement data gave no further approach. Correlations between VCG-data and fundamental frequencies of both parts of SI are referred to.

Adolescent↗