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Biomedical subjects

I Iu Skuchas

Publications and source records attributed to I Iu Skuchas.

10 recordsLinked to original sources
PubMed1990

[The first clinical experience in extended myoventriculoplasty with programmed cardiosynchronized electroneurostimulation].

The article deals with the description and analysis of the first two operations undertaken for the development of the method and the first clinical use of extended myoventriculoplasty with programmed cardiosynchronized electroneurostimulation. The authors elaborated the items of stage-by-stage training of the skeletal muscle for its adaptation to work in a regimen of the contracting heart, and the techniques of myoventriculoplasty in patients with a complicated form of ischemic heart disease and dilatation cardiomyopathy. Apart from that, the authors approved for the first time in the clinic an original Soviet-made programmed cardiosynchronized electroneurostimulator intended for implantation. The immediate postoperative results were satisfactory.

Cardiomyopathy, Dilated↗
PubMed1990

[Continuous bipolar electrostimulation of the heart].

The analysis of the data available in the literature has shown that bipolar pacing systems are promising. The paper indicates that the first samples of a Soviet bipolar electrode have been made and tested in the laboratory setting. It also raises whether it is necessary to design bipolar pacemakers.

Electrocardiography↗
PubMed1985

[Structure of the tissue adjacent to the electrode in the case of an extremely low threshold of cardial electrostimulation].

The authors present the data of the histological structure of the dog heart tissue adjacent to the electrode tip following a ten-month period of electrical stimulation by means of an implanted graphited porous endocardial electrode and a pacemaker of the alternating polarity. The reason for performing such an histological investigation was an extremely low chronic threshold of heart electrostimulation, amounting to 0.35 V with the stimulus duration 1 ms. The structural features of the tissues as viewed by the authors, consist in (1) the thinning of the fibrous capsule of the electrode tip; (2) the presence of a zone adjacent to the electrode, with this zone being rich in the liquid component of the intercellular substance; (3) the formation of a conspicuous radix of the fibrous capsule, penetrating into the depth of the myocardium.

Animals↗
PubMedDate not supplied

[Development of a technic and methodology of myoventriculoplasty using programmable cardio-synchronized electro-neurostimulation].

The present work provides the basis for the technique of myoventriculoplastics, first applied in this country, with the use of programmable cardiosynchronized electroneuropacing. The characteristics of a first Soviet implantable electroneuropacemaker, and original electrodes for electrostimulation of the neuromuscular tissue is presented and the surgical technique suggested. Data of 25 experiments on 8 dogs are included. The maximal follow-up period was 7.5 months.

Animals↗
PubMedDate not supplied

[Optimization of the shape of implantable electrocardiostimulators].

The deficiencies of current electrocardiostimulation equipment are being discussed on the basis of analysis of cases with the device implantation. The authors propose changing the shape of the electrocardiostimulator so, that the frame of the device were surrounded by soft tissue.

Equipment Design↗
PubMedDate not supplied

[Optimization of the geometric shape and contact surface area of endocardial electrodes].

Endocardial electrodes of original construction are described: with polyhedral head, with split contact head and crescent-shaped one. These electrodes proved to be more efficient than that with spherical or cylindrical contact head with equal contact area. The crescent-shaped electrode underwent clinical trial on 63 patients. During 2 years after implantation no dislocation of these electrodes were noted.

Electrodes, Implanted↗