[The agreed experts' position of the Eurasian Association of Therapists on tactics of management of patients with comorbid pathology infected with SARS-Cov-2].

The agreement of experts of the Eurasian Association of Therapists (EAT) discusses pathogenesis and treatment of COVID-19. Modern data on the characteristics of cardiovascular, kidney, respiratory damage in SARS-infected CoV-2 are presented. The tactics of managing patients initially having cardiovascular diseases, diabetes mellitus, chronic obstructive pulmonary disease, bronchial asthma, chronic kidney disease are discussed in detail. The article presents data on drug interaction of drugs.

[Physical training at ambulatory-polyclinical stage in complex rehabilitation and secondary prevention of patients with ischemic heart disease after acute incidents. Effect on physical working capacity, hemodynamics, blood lipids, clinical course and prognosis (Russian cooperative study)].

AIM: To investigate efficacy of early and long term physical training (PT) of moderate intensity in conditions of practical health care in Russia in patients with ischemic heart disease (IHD) of able to work age - survivors of acute coronary events. MATERIAL AND METHODS: Three hundred ninety two patients were enrolled in this study. They were randomized into intervention group " O" (n=197) and control group " C" (n=195). Inclusion period was 3- 8 weeks from onset of myocardial infarction (MI), unstable angina (UA), or intervention on coronary arteries. Patients were followed up for 1 year and efficacy of intervention was assessed by results of laboratory (levels of lipids), instrumental (ECG, exercise test on veloergometer, echocardiography), and clinical examination. In the group " O" regimen of PT with work loads of moderate intensity (50-60% of power achieved during exercise test) was used. Duration of FT was 45 - 60 min, frequency - 3 times a week. All patients received standard therapy for IHD and a lipid lowering drug when indicated. RESULTS: Proofs of efficacy of PT in the given contingent of patients were obtained. This was manifested by significant increase of physical working capacity: prolongation of exercise time (+31.7%, p<0.001), increases of volume of work performed (+74.3%, p<0.001) and efficiency of cardiac work according to results of exercise tests. All parameters were significantly different from those in the group " C" . Structural functional parameters of the heart also improved in the group " O" : left ventricular (LV) stroke volume increased 4.5% (p<0.005), ejection fraction increased 7.2% (p<0.001), diastolic LV volume decreased 2.5% (p<0.05), systolic LV volume decreased 8.1% (p<0.001). In the group " C" stroke volume and LV ejection fraction rose to a lesser degree - by 5.5% (p<0.01) and 2.9% (p<0.05), respectively. Differences between groups in dynamics of these parameters turned out to be significant (p<0.05). Moreover in group " C" LV diastolic volume increased 2.3% (p<0.05) and systolic volume did not change, while left atrium increased 3.4% (p<0.002). At intergroup comparison differences in dynamics of these parameters were significant (p<0.005). Analysis of lipid profile after 1 year showed no changes in patients of group " C" , while in group " O" it revealed significant (3.6%) lowering of total (T) cholesterol (CH) (p<0.05 compared with baseline and change in group " C" ) and elevation of high density lipoprotein (HDL) CH (+12.3%, p<0.001; compared with group " C" p<0.005). Atherogeneity index TCH/HDLCH decreased 8.5% in the group " O" (p<0.01), and increased 12% (p<0.02) in the group " C" , difference between groups was statistically significant (p<0.001). In the group " O" body mass index decreased 2.8% (p<0.001), and frequency of attacks of angina decreased 50.8% (p<0.001; compared with group " C" p<0.001). Statistically significant differences were registered between the following parameters of composite end point and surrogate points: total number of cardiovascular events - 26 (14.8%) vs 47 (27%), p<0.01; number of cardiovascular catastrophes - 5 (3%) vs 15 (8.7%), p<0.05; number of days out of work because of exacerbation of IHD per 1 person/year - 2.4 vs 4.2, p<0.05 in groups " O" and " C" , respectively. Thus in the group " O" positive effect of PT on the course and outcomes of the disease was registered compared with the group " C" . CONCLUSION: The data obtained are indicative of sufficient efficacy of the used program of PT and feasibility of its application in practice of ambulatory rehabilitation of patients with IHD - survivors of acute coronary events. It also can be looked upon as a method of secondary prevention as results of the study showed its positive impact on risk factors and outcomes of the disease.

[Exercise in outpatient complex rehabilitation and secondary prophylaxis in patients with ischemic heart disease after acute coronary events (a cooperative trial in Russia)].

AIM: To assess efficacy of early and long-term exercise in patients with ischemic heart disease (IHD) after acute coronary events (acute myocardial infarction--AMI, unstable angina--UA, coronary artery bypass grafting--CABG) in wide outpatient medical practice of Russia. MATERIAL AND METHODS: Three to eight weeks after the acute coronary event (ACE) 373 patients from different clinics of RF regions were randomized into two groups: the study group (n = 188) and a control one (n = 185). Both groups received standard therapy, the study group performed also a special exercise program (moderate exercise for maximum 1 hour 3 times a week for a year). The efficacy of the treatment was assessed by clinical, device and biochemical findings during 6-month follow-up. RESULTS: Physical work capacity, total amount of performed work (PW) in stress test rose in the study group by 26.5% (p < 0.01) and 59.4% (p < 0.01), respectively; HRmax and BPSmax x HRmax increased by 6.4 and 9.8%, respectively, p < 0.01); PW/Hrpeak rose by 48.6% (p < 0.01), PW/DP peak--by 45.9% (p < 0.01). Left ventricular ejection fraction increased by 5.6% (p < 0.05), LV stroke volume--by 3.4% (p < 0.05). In 6 months, controls demonstrated a 4.7% (p < 0.05) rise in HDLP cholesterol, total cholesterol lowered in the study group by 6.4% (p < 0.01), body mass index--by 1.9%, number of anginal attacks--by 0.9%. CONCLUSION: The proposed exercise program is effective and can be applied in outpatients after acute coronary events. The program can be also used as a method of secondary prophylaxis as it lowers total cholesterol, atherogenic index and body mass index.

[Effect of physical training on M-cholinergic-blocking activity of blood serum in acute coronary disease]. / M-kholinoblokiruiushchaia aktivnost' syvorotki krovi pri ostrom koronarnom intsidente i vliianie na nee fizicheskikh trenirovok.

On 93 longitudinal strips of 31 rats' uterus horns, M-cholinoblocking agent activity in 50-, 100-, 500-, 1000- and 10,000-fold dilution of the blood serum taken from 10 healthy older subjects and 40 patients after an acute coronary incident, was studied, 10 patients being engaged in physical training. Findings suggest presence of an endogenous M-cholinoreceptor blocking agent in the blood with lisophosphatidylcholin as the basic component. An acute coronary incident seems to reduce the efficiency of the M-cholinergic effect on the heart and vessels.

Effect of physical training on blood level of endogenous modulators of beta-adreno- and m-cholinoreactivity in patients with a history of myocardial infarction.

The relative content of myocyte-active factors and endogenous muscarinic receptor blocker in the blood increased, while the concentration of endogenous beta-adrenoceptor sensitizer decreased in coronary patients with a history of acute myocardial infarction. Physical training produced a therapeutic effect, normalized the content of these factors and, probably, improved beta-adrenergic and muscarinic cholinergic regulation of the heart and vessels.