Search PubMed⌕ Search

Biomedical subjects

B S Belov

Publications and source records attributed to B S Belov.

16 recordsLinked to original sources
PubMed2005

[Heart rate variability in patients with paroxysmal atrial fibrillation of various etiologies].

Heart rate variability (HRV) was assessed on 24 hour Holter ECG recordings from 32 healthy persons and 54 patients with paroxysmal atrial fibrillation (AF) of different etiology (hypertension, ischemic heart disease, rheumatic mitral valve disease, idiopathic AF) aged 45-73 years. Nocturnal, diurnal and 24 hour HRV was measured. Time and frequency domain HRV measures were lower in patients with AF and underlying heart disease compared with healthy persons and for most of the parameters with patients with idiopathic AF (p<0,05). Patients with idiopathic AF compared with healthy persons had higher values of high frequency power during nighttime (p<0.05), what reflected activation of parasympathetic nervous system in this category of patients.

Aged↗
PubMed2004

[Present-day classification and nomenclature of rheumatic fever].

The paper presents a new classification of rheumatic fever, which has been adopted by the Plenary Session of the Association of Rheumatologists of Russia in May 2003. This classification envisages the abandonment of the term "rheumatism" in its former interpretation. The term "acute rheumatic fever" (ARF) appears to be more justified since it makes a physician elucidate its association with Group A streptococcal infection of the throat and prescribe antibiotics for eradication of this infection in its acute period (primary prophylaxis) and for prevention of repeated attacks (secondary prophylaxis). The current interpretation of the clinical syndromes/symptoms and laboratory parameters that enter into diagnostic criteria for ARF is presented. There are 2 types of outcome of the disease. In case of recovery, we are dealing with the complete regression of the clinical symptomatology of ARF, normalized laboratory parameters and no residual changes. Chronic rheumatic diseases of the heart are considered to mean a disease characterized by a cardiac valvular lesion as postinflammatory marginal fibrosis of valvular leaflets or cardiac abnormality (failure and/or stenosis) developed after prior ARF. Emphasis is laid on the significance of evidence of Group A streptococcal infection that precedes the development of the disease. Examples of clinical diagnosis in accordance with the terminology of the International Classification of Diseases, the 10th edition, are given in the paper.

Anti-Bacterial Agents↗
PubMed2003

[Acute rheumatic fever: problems and outlooks].

The issue related with acute rheumatic fever still remains to be topical at the present stage, which is accentuated by a high prevalence of rheumatic heart diseases. The results of multiple studies point out at the presence of "rheumatogenetic" A-streptococcal strains possessing certain biological properties. Although there were no changes in the disease semiotics, the intensity degree of clinical signs went down, due to which an early diagnosis of the disease became more complicated. The issues related with the nosological classification of post-streptococcal reactive arthritis and with PANDAS syndrome need to be solved. There is also an urgent necessity in creating high-technological domestic benzathine-penicillins intended for secondary prevention of the disease.

Acute Disease↗
PubMed2002

[Nimesil effectiveness in rheumatoid arthritis].

Clinical efficiency and safety of nimesil were studied in the multicenter open clinical trial of 52 patients with verified rheumatoid arthritis. Nimesil was given for 12 weeks in a daily dose 200-400 mg in addition to basic therapy. Clinical and laboratory parameters were assessed after 4 and 8 weeks of the treatment and after its end. The treatment produced a significant positive response of the articular syndrome. Marked improvement was registered in 11 (23.4%) patients, improvement--in 33 (79.2%) patients. Side effects were reversible and occurred in 8 (15.3%) patients. In 5 patients the drug was withdrawn. The conclusion is made on high efficiency and good tolerance of nimesil in rheumatoid arthritis patients.

Adult↗
PubMed2000

[A comparative evaluation of the pharmacokinetics of different forms of benzathine benzylpenicillin].

Comparative randomized opened pharmacokinetic evaluation of benzathine benzylpenicillin in three dosage forms was performed. Benzathine benzylpenicillin was used as extencilline (2.4 million U or 1.2 million U, "Rhône-Poulenc Rorer", France) and as bicillin-5 (1.5 million U, "Synthesis" Russia). 33 patients were included in investigation (23 women and 10 men aged 16-60 years). 25 persons had verified rheumatism without blood circulation failure signs, 4--had chronic tonsillitis and 4 were healthy volunteers. Benzylpenicillin concentration was estimated by microbiology test in blood samples taken at 1, 3, 24 hours and 7, 14 and 21 days after intramuscular drug injection. After 2.4 million U extencilline injection (12 patients) its concentration, was at the inhibition level for beta-hemolytic streptococcus group A (25 ng/ml) for 3 weeks-period in 83.3 per cent of patients. After 1.2 million U extencilline injection (10 patients) or 1.5 million U bicillin-5 injection (12 patients) the above mentioned concentration was achieved on the 21st day in 30 and 0 per cent of patients respectively. Thus the treatment with benzathine benzylpenicillin at the 1.2 million U dose in the form of extencilline or bicillin-5 doesn't provide adequate antistreptococcal concentration in blood in prolonged period and is not suitable for correct rheumatism prophylaxis in adult patients.

Adolescent↗
PubMed1996

[Use of fluoroquinolones in rheumatology].

The efficacy and tolerance of 3 fluoroquinolones (ciprofloxacin, pefloxacin, lomefloxacin) were studied in 157 patients with rheumatic diseases concurrent with infection-induced abnormalities. Infection cure was achieved in 123 (78.6%) patients, as evidenced by clinical, microbiological, and serological studies. The tolerance of fluoroquinolones was regarded as good, satisfactory, and poor in 114 (72.6%), 37 (23.6%), and 6 (3.8%) patients, respectively. All representative drugs of the fluoroquinolones series produced typical adverse reactions. The authors consider it expedient to make further clinical studies to test the optimal treatment regimens and to expand indications for the use of fluoroquinolones in this group of patients.

Adolescent↗
PubMed1989

[Genetic variants of acid erythrocytic phosphatase as a risk factor of rheumatic fever].

A study was made of the genetic variants (isoenzymes, phenotypes) of acid erythrocytic phosphatase (AcP) in 120 patients with rheumatic fever. There were 78 women and 42 men aged 16 to 57 years. The population data concerned with distribution of the AcP variants among the population of Moscow were used as control. As compared with control, the patients suffering from rheumatic fever demonstrated the accumulation of the rarely occurring variants of AcP (AC, BC and CC, in particular). A significant direct correlation was established between the activity of isoenzymes and relative risk of rheumatic fever incidence. The definite regularities in the distribution of AcP variants were found to depend on the disease clinical patterns (the articular syndrome, the times of the formation of heart diseases, the character of recurrent rheumocarditis). The data obtained can used for distinguishing the rheumatic fever risk groups and forecasting the rheumatic process (to a certain degree of probability).

Acid Phosphatase↗
PubMed1988

[Dermatoglyphics in patients with rheumatism].

Dermatoglyphic parameters were studied in 163 patients with rheumatic fever (111 women and 52 men aged 16 to 58) and in 200 controls (131 women and 69 men) in the Moscow population. Quantitative parameters of the patients did not differ from those of the controls. An analysis of the qualitative parameters showed statistically significant differences in the whole group of the patients as well as in relation to the presence and topical character of heart disease as compared to the controls. Differences in dermatoglyphic indices in particular clinical types of rheumatic fever were mainly associated with a type of phenotypical pattern on the fingers, the presence or absence of a pattern on thenar and hypothenar, a pattern type on the fourth and fifth fingers. The authors have been of opinion that the results obtained make it possible to predict, with a positive degree of probability, a possibility of development of disease as well as its outcome (the formation of heart disease).

Dermatoglyphics↗