The aim – to assess the additional prognostic information of metabolic syndrome (MS) components in groups of patients with acute myocardial infarction with segment elevation ST (STEMI), equalized in terms of commonly used acute coronary syndrome (ACS) risk factors. Materials and methods. Retrospective analysis of the 820 cases of STEMI included: evaluation of risk factors according to the scales TIMI, GRACE, PURSUIT, and evaluation of components of the metabolic syndrome at entry (the presence of diabetes mellitus and/or increasing glucose levels > 7 mmol/l, overweight, hypertension, dyslipidemia), as well as the assessment of the indicators of clinical course of hospital period of MI, treatment and results of follow-up of patients, including the information about cases of cardiac death. Results and discussion. Via automated «case-match-control» algorhythm from the basic cohort 2 groups were selected: group 1 (n=41, patients with MS) and group 2 (n=123, patients without MS). Matching criteria included following 13 risk factors: age, height, presence of heart failure, smoking, systemic hypotension at the 1 day of AMI, presence of anterior STEMI, the peak level of the MB-CK and AST, a history of angina and the period of unstable angina before STEMI, the presence of previous MI, baseline heart rate, baseline glomerular filtration rate (CKD-EPI), male gender. Groups were exactly matched by the first 4 matching criteria, and among other criteria maximum mismatch of 3 criteria was allowed (mean mismatch was 1.87 criteria from 13 per pair, and there were no significant differences in groups by each of 13 matching criteria). Otherwise, group 1 was characterized by more severe baseline profile, clinical course of hospital period, but it has the more intensive medical treatment also (including more frequent prescription of ACE inhibitors). According to the follow-up data, patients in group 1 had smaller end-systolic and end-diastolic indexes, more signed improvement in acute heart failure rate, higher heart rate variability and smaller dispersion of repolarisation at the 10th day. Also there was observed a trend toward a lower 3-year mortality (4,9 versus 17,1 %; p=0.05). Conclusions. The presence of MS accompanying STEMI is associated with poorer course of acute period of the disease and, in a contrary, with more favorable course of post-infarction period because of more intensive cardiac therapy in this group of patients.

The aim – to create a new method of assessing the development of hospital complications in STEMI patients by studying blood cell composition and its adaptation to practical application in general clinical practice.Materials and methods. The study was involved 317 patients with acute myocardial infarction (AMI) who was admitted from January 2014 to June 2020 to the intensive care unit. Some patients were evaluated retrospectively and were in group 1 (n=214). Group 2 – 103 patients, who were studied prospectively. The group of patients did not differ in clinical and anamnestic characteristics and treatment. An index of hospital complications was created for assessing the criteria of the severity of the clinical course.Results and discussion. A number of correlation analyses were performed to examine the relationships between white blood components, platelet heterogeneity and systemic inflammation, and the hospital complication index. On the basis of these data we have built a complex index – leukocyte-platelet index (LTI): LTI (conditional unit) = ((GRA – MON) / LYM) · 10 + PDWc + P-LCR, where: GRA is the number of granulocytes in the blood test, MON is the number of monocytes, LYM is the number of lymphocytes, PDWc is the percentage of platelet distribution by size, and P-LCR is the percentage of large (> 12fL) platelets. When assessing in group 1 correlations with the index of nosocomial complications and combined indicators: neutrophil-lymphocyte ratio (NLR) and the LTI index created by us showed the highest degree of correlation with the index of hospital complications (р<0.001 and р<0.0005, respectively). When the value of LTI > 137 conventional units can be judged on the increased risk of nosocomial complications of AMI (sensitivity 64 %, specificity 78 %, area under the curve 0.72). Thus, in a prospective approbation study, the LTI on the first day of AMI was significantly (р<0.05) better than other indicators, in particular, better than the widely used leukocyte marker NLR in determining the susceptibility to the undesirable course of the hospital period of the disease.Conclusions. The created computer algorithm for calculating the risk index of complications in patients with AMI on the first day can be widely implemented in modern health care facilities in Ukraine.

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The aim – to determine the extent of different subpopulations of blood monocytes in acute myocardial infarction (AMI) with ST-segment elevation patients on day 1 and 7 and to evaluate the relationship between their content and the dynamics of changes and the risk of complications after AMI.Materials and methods. The composition of individual subpopulations of monocytes in the peripheral venous blood (and general clinical and biochemical blood tests) was evaluated in 50 pts with STEMI (who were admitted within 6 hours after the onset of the disease) at admission (before primary PCI) and on day 7. All patients received standard recommended therapy. Dynamic heart echocardiography was also performed on the 1st and 7th day. All patients were divided into 2 groups depending on the dynamical increase (1 group – 21 pts) or decrease (2 group – 29 pts) of classical monocytes (CD14hiCD16–) subpopulation during 7 days of follow-up. The control group included 15 healthy subjects with no signs of coronary heart disease and 23 pts with chronic coronary heart disease without AMI.Results and discussion. In subgroup 1, the percentage of the «classical» fraction of monocytes during the observation increased to 89.0±1.2 %, which was 4.2 % more than on the 1st day and 12.5 % more than in the control group (р<0.05), while the absolute amount of classic monocytes on day 7 increased by 48 % compared to initial value (р<0.01). The percentage of «intermediate» (CD14hiCD16+) blood monocytes in patients of this subgroup on the 1st day of hospitalization was 70 % higher than in the control group, and 42 % higher than in the 2nd subgroup of patients (р<0,001), however, on the 7th day it decreased by 30 % compared to baseline, although it remained by 8 % more than in the control group (the absolute number of «intermediate» monocytes did not change). The activation index (IA) of the «intermediate» monocytes on the first day did not differ between subgroups and was 40 % higher than in the control group (р<0.001). However, in the dynamics of observation, in patients of subgroup 1, this figure did not change, while in subgroup 2 IA decreased by 60 % (р<0.001). Despite the fact that the absolute number of anti-inflammatory («patrolling») (CD14+lowCD16++) monocytes did not change until the 7th day of observation (and their percentage decreased slightly), their IA was significantly lower than in the control group (95 %) and in patients of subgroup 2 (92 %, р<0,001). In patients of subgroup 2, the decrease of the percentage of «classic» monocytes was –7.7 % (from 90.4±0.8 to 83.4±1.2 %). Despite the fact that the number and percentage of intermediate monocytes increased in dynamics, their IA decreased almost 2 times, which may indicate a decrease in the pro-inflammatory ability these monocytes. The percentage and number of «patrolling» monocytes increased in dynamics by 37.4 % (р<0.0001) and by 268.3 % (р<0.01), respectively. IA of patrolling monocytes was almost 12 and 7 times higher than in patients of subgroup 1 on the 1st and 7th day of observation, respectively, which may indicate a significant activation of anti-inflammatory activity of patrolling monocytes. Intracardiac thrombosis was 3.3 times more common in patients of subgroup 1, in this subgroup was also more often noted (compared to the subgroup 2): dilatation of the left ventricle (almost 8 times), reduction of left ventricular ejection fraction (4 times), and pathological post-infarction remodeling of the left ventricle (almost 7 times).Conclusions. The results of the study indicate the important role of different subpopulations of blood monocytes in the processes of myocardial damage and recovery (in particular, the pro-inflammatory role of increasing the number of classical monocytes and increasing the activity of intermediate monocytes, as well as the anti-inflammatory role of increasing the number, percentage and activity of patrolling monocytes) in patients with AMI and can be the basis for developing new approaches to the diagnosis and prevention of complications of this disease.

Aims Acute myocardial infarction with the ST elevation (STEMI) is accompanied by the development of an inflammatory reaction, in particular, activation of monocytes. To date, the relationship between the levels and dynamics of monocyte populations in patients with STEMI and the prevalence of coronary atherosclerosis on the one hand (and with the clinical course of the disease, on the other hand) is not well understood. Methods and results The 50 STEMI patients (pts) were studied prospectively. All the pts underwent the PCI (alone, or followed by angioplasty/stenting) and have the monocytes (Mc) population analysis data obtained at 1st and 7th–10th days. According to the angiography data, pts were divided into three groups: “single-vessel lesion” (group 1, n=13), “two-vessel lesion” (group 2, n=14) and “three-vessel lesion” (group 3, n=23). There was an in-hospital increase in CD14++CD16-, CD14++CD16+ and CD14+CD16++ populations of Mc in 3rd group (+5%, +43% and +44%, respectively, p&lt;0.05 for all), whereas in subgroups 1 and 2 there was an increase in CD14+CD16++ population (+70% in group 1, p&lt;0.05 and +90% in group 2, p&lt;0.001), without significant dynamics of CD14++CD16− and CD14++CD16+ populations. In addition, there was an increase in the CD14+CD16++ population only in pts with 1–3 coronary lesions (+72%, p&lt;0.001 versus −12% of decrease in pts with more than 3 lesions, p&gt;0.1). The number of CD14++CD16+ Mc on day 1 of STEMI correlated positively with levels of C-reactive protein (C-RP, r=0.34, p&lt;0.05), erythrocyte sedimentation rate (ESR, r=0.39, p&lt;0.01), and with left ventricle (LV) end-systolic volume (r=0.33, p&lt;0.05) and negatively – with LV ejection fraction (r=−0.22, p&lt;0.1), while there were only slight correlations of CD14++CD16- Mc levels with left ventricle (LV) end-systolic volume (r=0.28, p&lt;0.05) and with LV ejection fraction (r=−0.23, p&lt;0.1). According to the hospital follow-up, the 1st day count of CD14++CD16+ Mc was higher in patients with in-hospital complications (mean 42.9±6.9x106/L vs 26.6±5.3x106/L in uncomplicated cases, p&lt;0.05), and was correlated with number of in-hospital complications per patient (r=0.25, p=0.05). Conclusion Higher baseline number of CD14++CD16+ Mc correlates with other “pro-inflammatory” indices (C-RP, ESR) and indicates the worse baseline cardio-hemodynamic and unfavorable course of in-hospital period in pts with STEMI, treated with PCI. Incremental in-hospital dynamic of all Mc populations was observed in multi-vessel lesion cases. Funding Acknowledgement Type of funding source: None