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Biomedical subjects

D I Zhemaĭtite

Publications and source records attributed to D I Zhemaĭtite.

17 recordsLinked to original sources
PubMed1988

[Possibilities of the evaluation of autonomic regulation of cardiac activity in patients with ischemic heart disease using non-invasive methods of examination].

Vegetative control of the heart was assessed on the basis of cardiac rhythm (CR) and stroke volume parameters in the course of an active orthostatic test and bicycle ergometry in 508 myocardial infarction patients and 30 normal subjects. Central hemodynamic parameters and CR spectrum were examined with respect to phases of sleep in 125 coronary patients and 25 normal subjects. Coronary patients showed a disrupted vegetative CR regulation, which was chiefly parasympathetic (reduced CR response to an active orthostatic position and rationed exercise, and a smaller share of high-frequency constituent of the CR energy spectrum). Disrupted vegetative CR regulation was correlated with low hemodynamic baseline and respective values in active orthostatic position, exercise and REM sleep. Reduced CR response to stress as well as reduced CR spectrum during sleep corresponded to more severe clinical conditions.

Adult↗
PubMed1987

[Method of quantitative evaluation of functional status and its dynamics among patients with ischemic heart disease during treatment at the Palanga health resort].

The evaluation of functional status of coronary patients has been made by means of a computerized numerical scoring system, using the results of clinical examination, functional cardiovascular and cerebrovascular tests, and psychosocial tests. The effectiveness of rehabilitation and secondary preventive programs for coronary patients treated at a health resort are rated on the basis of a difference between their functional status at the starting and finishing points of the program, as well as the resulting functional status after the program is over.

Cardiovascular System↗
PubMed1987

[The immediate effectiveness of rehabilitative treatment and secondary prevention in ischemic heart disease patients at Palanga health resort].

The effectiveness of rehabilitation and secondary prevention was analysed in 1761 coronary patients treated at Palanga health resort. Rehabilitation measures were prescribed to patients on the basis of their functional state (FS), sets of cardiovascular and nervous symptoms and stress tolerance tests. The improvement of FS was observed in 74.8% of patients, while 3.1% and 19.2% of patients displayed impairment or no changes, respectively. The sets of symptoms, related to angina pectoris, stress tolerance, myocardial impairment and central nervous function, underwent the greatest variation throughout the rehabilitation treatment. Negative FS dynamics were determined by unfavorable sets of symptoms (apparent myocardial impairment, heart failure and dysrhythmias).

Angina Pectoris↗
PubMed1984

[Periodic breathing and disorders of cardiac activity during sleep in patients with ischemic heart disease].

A total of 75 coronary patients were examined during nocturnal sleep. Thirty-eight of them had periodic apnoe or hypopnoe breathing which occurred more commonly during light sleep in patients with myocardial contractile dysfunction, compromised cerebral circulation and overweight. Periodic respiration was accompanied by heart rhythm oscillations, variations in the muscle and peripheral vascular tone, by EEG activation and, in some cases, by the activation of T-wave on the EEG. No direct association was found between apnoe episodes and cardiac activity impairments (rhythm and conductivity disturbances, ST segment changes on the ECG). However, dangerous rhythm irregularities were noted more commonly in patients with periodic breathing manifestations during sleep. Thus disorders in heart activity and periodic respiration during sleep may be associated with depressed vegetative regulation.

Adult↗
PubMed1981

[Method of conducting a staged rehabilitation of patients who have had a myocardial infarct].

Stage rehabilitation with the use of special centres is a combination of physical culture, physiotherapeutic, psychological and medicinal effects. The patients is early passed, contraindications excepted, with an average hospital treatment of 22 days with bicycle ergometry examinations at dismissal. A whole round method of assessment of the patients condition during rehabilitation is being used. Results achieved are reinforced during out-patient examination of all patients who had had myocardial infarction in a cardiological centre.

Early Ambulation↗
PubMed1975

[Sinus extrasystole].

A rare clinical case is described pertaining to a 70-year-old female patient with atherosclerotic cardiosclerosis accompanied by a combination of sinus and ventricular extrasystole. The importance of rhythmography and the criterion of allorhythmia is emphasized as being he indices that help to improve the diagnosis of sinus extrasystole.

Adolescent↗
PubMedDate not supplied

[Spectral analysis of the cardiac rhythm of fishes].

Spectral analysis of the rhythmograms in the cod Gadus morhua callarias, plaice Pleuronectes platessa, herring Clupea harengus membras and trout Salmo gairdneri revealed complex wave structure of their cardiac rhythm. In all the species investigated, slow (0.01-0.06 Hz), intermediate (0.06-0.25 Hz) and fast (0.25-0.5 Hz) waves were recorded. It is suggested that the wave structure of cardiac rhythm reflects rather complicated relationships between functional systems regulating cardiac activity.

Animals↗