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Biomedical subjects

Z I Ianushkevichus

Publications and source records attributed to Z I Ianushkevichus.

At least 19 recordsLinked to original sources
PubMed1984

[Spontaneous variations in the characteristics of ventricular extrasystole].

The authors studied 65 patients (mainly with chronic coronary heart disease) with 48 hours of continuous two-channel Holter recordings of antiarrhythmic drugs. Spontaneous qualitative day to day variations in ventricular premature beats (VPB) exceeding 50% were recorded in 22 (33.8%) cases, those exceeding 75%--in 10 (15.4%) cases. Additional cases of severe Lown grade VPB during the second day of monitoring were revealed in 8 (12.3%) cases. We conclude, that marked day to day variation in VPB require a strict criterion (greater than 75% decrease) to define antiarrhythmic drug efficacy.

Adult↗
PubMed1984

[Age and late outcome of myocardial infarction].

Age-dependent differences in the clinical state, lethality, incidence of repeated infarction, frequency and duration of temporary disability were studied in 993 patients during 2 years after myocardial infarction. The stage of heart failure is the main factor responsible for the less favourable outcomes after myocardial infarction survived in middle and senile age. The incidence rate of repeated myocardial infarction during two years, and preservation of capacity for work in subjects, who returned to work, do not differ significantly in varying age groups.

Adult↗
PubMed1981

[Rhythmographic study of the frequency dependence of extrasystole in ischemic heart disease].

Results are given of the rhythmographic study of the frequency of extrasystole at rest, in the orthostatic position and during exercise in 236 patients with chronic ischaemic disease of the heart. The frequency dependence of extrasystole (the rate dependence of premature beats) was seen in 75.4% of cases. In the absence of the rate dependence of extrasystole, novocainamide, propranolol and atropine exerted marked antiarrhythmic effect less frequently than when such a dependence was present.

Aged↗
PubMed1981

[Study method for registering cardiovascular morbidity with automatic processing of medical data].

Automation of the registration of cardiological diseases provides the basis for creating an automated system of control in cardiology, which may be used to analyse the disease incidence for any length of time and to obtain, whenever required, extensive operative information on the activity of therapeutic and prophylactic establishments. This information will serve for judging the condition of specialized cardiological service on the whole as well as in different territorial and production-shop areas, and in cardiological offices, and for estimating the need in hospitalization according to the forms of cardiological diseases. This, in turn, makes it possible to improve the planning of medical care measures.

Cardiovascular Diseases↗
PubMed1980

[Use of a biographical questionnaire for studying the social and psychological characteristics of myocardial infarct patients].

An original formalized and standardized biographical questionnaire revealed higher activity and emotional tension in persons with myocardial infarction in the subacute period than in patients of a control group. A formalized and standardized biographical questionnaire is a reliable method for investigating the social and psychological peculiarities in applying measures of rehabilitation and primary and secondary prophylaxis in patients suffering from ischemic heart disease.

Adult↗
PubMed1980

[Organization of the control of the cardiovascular diseases in the Lithuanian SSR].

Experience in elaborating and introducing into medical practice the elements of a unified consecutive system of ischemic heart disease control was developed in Kaunas. This system includes epidemiological detection of risk factors, primary prevention, and rehabilitation of patients with myocardial infarction and their subsequent regular medical surveillance. According to the system, the methods of primary and secondard prevention, diagnosis, treatment and rehabilitation are unified and standardized and a unified system of the registration and hospitalization of cardiological patients is introduced in Kaunas. Mathematical processing of the data was carried out by a computer. Methodical material has been elaborated and suggested for practical medicine.

Adult↗
PubMed1979

[Various problems of diagnosis of the pre-infarct state].

The clinical course of preinfarction states was studied in 246 in-patients. The informativeness of 128 signs of preinfarction state was checked and the most informative ones were used to compile a diagnostic-tactical algorithm for the recognition of preinfarction states and a prognostic algorithm for prognosticating the development of myocardial infarction.

Adult↗
PubMed1979

[Pathology of sudden extra-hospital death. 1. Obstructive lesions of the coronary arteries and myocardial scars].

The coronary arteries and myocardium were examined morphologically by special unified methods in 127 cases of prehospital sudden coronary death among Kaunas male population from 45 to 65 years of age. Obstruction of at least one of four major coronary arteries was severe (75% or more) in 90% of patients and moderate (50--75%) in the remaining 10%. In most cases one or two coronary arteries had severe obstruction (77% of cases) located predominantly in the proximal and middle segments of the left anterior descending and right coronary arteries. Post-infarction scars and small foci of myocardial sclerosis were found in 72% of hearts any may be considered as special "morphological catamnesis" of past acute coronary events. In 85% of cases the heart mass was more than 400 g. The data presented indicate the undoubted role of coronarogenic factors in the development of an acute terminal episode such as sudden death, the unexpectedness of which is only imaginary.

Aged↗
PubMed1978

[Prognosis in myocardial infarct complicated in the acute period by heart conduction disorders].

The influence of disorders of atrioventricular and intraventricular conduction, encountered in the acute period of myocardial infarction, on the immediate and remote prognosis of the disease was studied. In the acute period of myocardial infarction, III degree atrioventricular block and the right branch of the bundle of His block with the left posterior semiblock had a significant deteriorating effect on the prognosis. The remote prognosis was worse only due to the effect of III degree atrioventricular block.

Acute Disease↗