Estimation of erythrocyte parameters of general blood analysis in patients with SARS-CoV-2 -associated pneumonia.

The study of the features and dynamics of the erythrocyte parameters of general blood analysis in patients with cardiovascular diseases who underwent SARS-CoV-2 associated pneumonia is of great practical importance. That was a prospective study. The study included 106 patients with SARS-CoV-2-associated pneumonia. All patients were divided into 2 groups. The first group included 51 patients without CVD, the second group included 55 patients with CVD .Patients in both groups underwent laboratory examination of blood samples at the time of hospitalization and 3 months after discharge from the hospital. Parameters of the erythroid series of the general blood test were assessed. Among inflammatory biomarkers, we examined the concentration of C-reactive protein (CRP), high-sensitivity CRP (hs-CRP) and homocysteine. Initially all patients underwent computed tomography of the chest organs. Revealed what indicators of the erythroid series in the groups of patients with and without CVD had significant differences in a number of parameters: ESR; RDW-SD and RDW-CV with significant excess of parameters in group 2. Three months after discharge from the hospital, patients in both groups had a significant increase in HCT, MCV, MCH. There was detected decrease in both groups in MCHC, RDW-CV (p<0.001 for all parameters), ESR level in group 2.At baseline, CRP exceeded reference values in both groups of patients, reaching maximum values in group 2. After 3 months CRP decreased significantly only in group 1. Increased CRP was associated with elevated hs-CRP in 3 months after discharge and elevated homocysteine levels in both groups, indicating the persistence of prolonged inflammatory vascular reaction in patients after SARS-CoV-2 associated pneumonia, more pronounced in group 2 patients. RDW-CV over 13.6 and lymphocytes / CRP less than 0.6 increase the likelihood of having lung tissue damage over 50% by 9.3 and 5.9 times, respectively. Thus, the data obtained confirm that RDW-CV, the coefficient of variation of erythrocyte distribution width, associated with the parameters of inflammatory response and the lymphocytes / CRP is lung volume marker and of COVID-19 severity. Careful consideration of already known laboratory parameters allows us to expand the number of indicators influencing the risk of COVID-19 complications and enable an earlier response to a difficult situation.

Prospective analysis of laboratory blood parameters in patients with cardiovascular diseases who underwent COVID-19-associated pneumonia.

The study of the characteristics and dynamics of laboratory biomarkers in patients with cardiovascular diseases (CVD) undergoing COVID-19-associated pneumonia may be of great clinical importance. The study included 116 patients who underwent COVID-19-associated pneumonia. The patients were divided into 2 groups. The first group included 49 patients without CVD, the second group - 67 patients with CVD. A blood sample was performed in all patients at the time of hospitalization and 3 months after discharge from the hospital. The parameters of general blood count, biochemistry, hemostasis, and biomarkers of inflammation were assessed - concentration of C-reactive protein (CRP), highly sensitive CRP (hs-CRP), homocysteine and IL-6. All patients initially underwent computed tomography of the chest organs. We found that ESR, WBC (leukocytes), NLR (neutrophils/lymphocytes ratio), fibrinogen, LDH (lactate dehydrogenase), LYM/CRP ratio (lymphocytes/CRP) were parameters that significantly distinguished patients in the 1st and 2nd groups. Three months after discharge from the hospital in patients of both groups the increased indicators approached the reference values, however, some parameters such as CRP, ESR, WBC, fibrinogen remained at a higher level in group 2 compared to group 1. Correlation analysis revealed the relationship between parameters of inflammation and hemostasis in the 2nd group of patients, which confirms the presence of latent vascular inflammatory potential in this group. It was revealed that such indicators as lymphocytes, neutrophils, APTT and LDH were associated with the initial volume of lung lesion more than 50%. Increase of these parameters by 1 unit contributes to increase in the volume of lung tissue damage by 6.5%, 6.4%, 11%, and 0.6%, respectively. Thus, dynamic control of laboratory parameters has prognostic value in assessing the nature of the course of COVID-19 associated pneumonia in patients with CVD and developing an algorithm for personalized monitoring of patients in the post-COVID period with the aim of timely correction of therapy to prevent unwanted vascular complications.

Towards a new epidemiological definition of chronic rhinitis: prevalence of nasal complaints in the general population.

BACKGROUND: Chronic rhinitis (CR) is currently defined as the presence of at least two nasal symptoms for at least 1 hour per day for more than 12 weeks per year. Such definition lacks evidence-based foundation. CR patients are often divided into "runners" and "blockers", although the evidence supporting such subdivision is limited. The aim of the study was to define CR, to estimate its prevalence and the proportion of "runners" and "blockers". METHODS: Cross-sectional, questionnaire-based study in a random sample of participants representing the general population of the Netherlands. RESULTS: The questionnaire was sent to 5000 residents of the Netherlands; the response rate was 27%. CR was defined as at least 1 nasal complaint present for more than 3 weeks per year. The prevalence of CR in the general population was 40%. Participants who would have been excluded by the former CR definition were shown to have a significantly higher VAS compared to the controls. The larger part of CR group was represented by non-allergic rhinitis (NAR): 70% vs 30%. There were 25% "Blockers" and 22% "Runners" in the CR group, whereas more than a half of the CR group could be classified in neither of these subgroups. CONCLUSION: Based on our data, we suggest that the current definition of CR should be revised and propose a new definition: at least one nasal complaint present for at least 3 weeks per year; although future studies are needed to further validate the proposed definition.

[The role of therapeutic exercises in blood pressure correction, vascular wall stiffness and disorders of bone and mineral metabolism in postmenopausal hypertensive patients]. / Rol' lechebnoi fizkul'tury v korrektsii parametrov sutochnogo monitorirovaniya arterial'nogo davleniya, rigidnosti sosudistoi stenki i narusheniya mineral'nogo obmena kostnoi tkani u patsientok s arterial'noi gipertoniei v postmenopauze.

OBJECTIVE: To study the role of therapeutic exercises (TE) in the correction of blood pressure, stiffness of the vascular wall and disorders of bone mineral metabolism in postmenopausal hypertensive patients. MATERIAL AND METHODS: The study included 78 patients (mean age was 53.32±7.61 years). All patients are divided into 3 groups. The first control group is 20 women without arterial hypertension and menopause. The second group consisted of 27 patients with arterial hypertension (AH) and post-menopause who were not undergone the TE complex and the 3rd group - 31 women with AH and post-menopause who were undergone TE complex. Patients of all groups were examined in dynamics: at the starting point of the study and 12 months later, out-patient monitoring of blood pressure; sphygmography; densitometry and test for blood serum biochemistry parameters, including sex hormones, vitamin D. RESULTS: In the course of the study, blood pressure, vascular wall stiffness and disorder of bone mineral density were revealed significantly higher in the group 3 with significantly reduced levels of sex hormones. Multidirectional correlation relationships between the studied parameters are revealed. Treatment combined with therapeutic exercises led to permanent improvement tendency in studied parameters like blood pressure, pulse wave velocity, metabolic disorders and T-criterion. CONCLUSION: The result of the study indicates that the exercise therapy complex used in the form of regular classes, according to the scheme proposed by the exercise therapy doctor, can be recommended for implementation in clinical practice with the aim of comprehensively affecting the patient's body and developing personalized treatment tactics for postmenopausal women with hypertension.

Gender characteristics of lipid profile parameters and markers of vascular inflammation in patients with stable angina pectoris in groups with presence and absence of type 2 diabetes.

The study of the parameters of the lipid profile and markers of the inflammatory reaction of the vascular wall in patients with stable angina pectoris in the presence or absence of type 2 diabetes mellitus (T2DM) is of great importance for revealing the gender characteristics of the pathophysiological mechanisms of the development and course of diseases, developing secondary prevention of complications and determining the prognosis. 194 patients with stable angina pectoris (SA), single-vessel coronary artery disease, mean age 60.3 ± 7.8 years were examined. Patients were divided into two groups: group 1 - patients with SA without diabetes 2 (n = 152), group 2 - with SA and diabetes 2 (n = 42). In each group, subgroups of men and women are distinguished. The study of biomarkers was carried out upon admission to the hospital on the background of therapy, taken on an outpatient basis. The study included a complex of parameters of the lipid spectrum, markers of the inflammatory response, endothelial dysfunction, and carbohydrate metabolism parameters. A comparative analysis of biomarkers revealed an excess of reference values of atherogenic lipid fractions in both groups of patients, regardless of patient gender. Moreover, in the first group of patients, in the subgroup of women, a significant excess of the level of TC, PL (a), and ApoA-1 was registered compared with the subgroup of men. In the second group, there were no significant differences in parameters between the male and female subgroups. Evaluation of the parameters of the inflammatory reaction revealed in the subgroup of women with T2DM a steady tendency to exceed the level of hs-CRP, TNF-α, homocysteine compared with both men and women in the SA group without T2DM. The logistic regression revealed the main biochemical markers that affect the aggravation of the course of IHD in women with T2DM: this is a uric acid level of more than 380 mmol / l - OS 11.5 (95% CI 1.71-77.69), TNF-α more 8 pg / ml - OR 7.5 (95% CI 1.07-52.46) and an increase in TG - OR 3.33 (95% CI 1.073-10.335). Thus, women of the 2nd group with the presence of T2DM are characterized by the highest level of atherogenic fractions of lipids, markers of vascular inflammation, glucose and HbA1c, which may indicate the greatest potential for the development of atherothrombotic complications in this subgroup of patients.

[The role of vitamin D in the pathogenesis of arterial hypertension.]

In recent years, accumulated numerous data on the pathogenetic links of the formation of arterial hypertension. A number of studies have shown that vitamin D deficiency, associated with age, changes in sex hormonal status, increased tone of the reninangiotensin-aldosterone system, endothelial dysfunction, and calcium metabolism, can be one of the mechanisms of development and progression of arterial hypertension. The purpose of the review was to summarize the results of the original domestic and foreign studies, prospective observations and meta-analyzes on the relationship between vitamin D deficiency and arterial hypertension.

[Nonspecific parameters of the immune inflammatory response as a link in the pathogenesis of remodeling of the vascular wall and destruction of bone tissue in women with arterial hypertension in postmenopausal women.]

Recently, they increasingly began to pay attention to the role of a nonspecific immune-inflammatory vascular response as a link in general pathogenetic mechanisms with a change in the elastic properties of arteries and phenomena of destructive bone changes, which at the subclinical level is of great importance for the prevention of the development of socially significant diseases. A total of 104 patients were examined (mean age 57.45 years), which were divided into three groups. The first group included 39 healthy women, the second group included 30 patients with hypertension and osteopenia, and the third group included 35 women with hypertension and osteoporosis. The analysis of markers of the immune inflammatory response, endothelial dysfunction, hormonal and mineral-vitamin status parameters was conducted against the background of the study of parameters of daily monitoring of arterial pressure, study of parameters of vascular wall stiffness and densitometry to clarify the predictors of cardiovascular and degenerative bone changes in postmenopausal women. A significant increase in the concentration of HF-CRP, the level of homocystemine, IL-8, parathyroid hormone, against the background of a significant decrease in the level of estrogen, progesterone, testosterone, with a persistent tendency to increase in total cholesterol, atherogenic lipid fractions, myeloperoxidase, endothelin-1 and decrease was recorded calcitonin, total and ionized calcium, with a significantly minimal value of vitamin D in the 3rd group of patients. The risks of development and progression of bone destructive changes were calculated using the logistic regression method for the group of AH with osteopenia and osteoporosis. Thus, for patients with hypertension and osteopenia, a significantly significant parameter associated with the risk of developing osteoporosis was an indicator of the velocity of the pulse wave, an increase in the level of which exceeds 12.05 m/s is associated with an increased risk of developing osteoporosis by 3.8 times. Increased levels of pro-inflammatory parameters, IL-6 and 8, TNF-α, HB-SRB, parathyroid hormone and reduced levels of progesterone and IL10, took the most active part in aggravating the degree of available bone tissue destruction. Timely specialized multidirectional study of biochemical and instrumental parameters (in particular, the study of the speed of the pulse wave and densitometry) can be the basis for the development of personalized prevention and treatment tactics for women in order to prevent socially dangerous cardiovascular and bone complications.

[The possibility of using tranexamic acid for the treatment of bleeding in otorhinolaryngology].

This article is focused on the analysis of the literature publications pertaining to the problem of bleeding in otorhinolaryngology. It reports the epidemiological data on the structure of bleeding and the main methods used to arrest it. Special attention is given to the possibilities of application of tranexamic acid as an effective hemostatic agent not only for systemic but also for topical administration.