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The thesis is focused on material development based on hyaluronic acid usable in regenerative medicine, especially for heart tissue regeneration after myocardial infarction. The object of the study is the oxidized form of hyaluronic acid (HA-Ox) and hydroxyphenyl derivative of HA (HA-TA). HA-Ox can be crosslinked with a bifunctional alkoxyamine POA and HA-TA undergoes an enzymatic reaction in the presence of hydrogen peroxide catalysed by horseradish peroxidase leading to gel formation. To describe the materials, chemical and physical properties, gelation kinetics and conditions of crosslinking reactions were studied. Hydrogels were characterized by mechanical and viscoelastic properties, degradability or stability in simulated body fluids. These hydrogels serve as scaffolds for the selected cell type. To promote cell adhesion and viability, an RGD sequence has been bonded to the structure of HA-TA. This resulting material is also compatible with selected applicators. Its viscosity and extrusion force are low enough to allow application with a catheter with a very small internal diameter. The applicability of the material through the supply tube to the hydrogel reservoir of the second SPREADS device showed good homogeneity, cell distribution and viability. Finally, the material was applied in vivo using these devices during a preclinical study.

Introduction: The coronary heart disease is still an actual topic. The mortality has been in recent years declining, but prevalence in the population stagnates, so involve a large group of patients. The incidence of acute myocardial infarction is still high. One of the methods of reperfusion therapy is the cardiac surgery by coronary artery bypass graft, which may be postoperatively complicated by the development of low cardiac output syndrome with the need of the extracorporeal membrane oxygenation. These patients require very specialized not only during the critical phase, but also during the long-term convalescence including rehabilitation, weaning from the artificial lung ventilation, self-sufficiency training and help with return to normal life. Literature search: The theoretical part is based on the research of National Medical Library (NLK) and Study and Scientific Library of the Pilsen Region (SVKPL). The PubMed, Scopus, Web of science and Science direct databases were used to search articles in professional publications, including the latest cohort studies. The periodicals Cor et Vasa, the European Heart Journal, Critical Care and the European Journal of Cardiovascular Nursing were used. An important source of information is the guidelines of the Czech Society of Cardiology (ČKS), European...

Acute myocardial infarction (AMI) represents severe complication of atherosclerotic vascular disease. Despite therapeutic advances and better risk factor control, acute myocardial infarction remains the leading cause of death worldwide. Goal of this thesis was to interview a group of patients hospitalized for acute myocardial infarction and evaluate their knowledge of disease course, perception of disease representing a sudden change of health status, awareness of disease symptoms and motivation for future lifestyle changes. Quantitative research with inductive approach was chosen for our research. Data was collected using individualized non-standardized semi-structured interview. Seven selected patients hospitalized for acute myocardial infarction with ST elevation were entered into our analysis. All the patients were informed in advance about our research methods and ethical aspects. All the participants had insufficient awareness of AMI symptoms. However, intensity of disease symptoms was severe, so they contacted health system early. Majority of them called emergency service. Level of education had significant impact on patient behavior. Patients with university degree had the best awareness of disease symptoms and shortest times from symptom onset to medical system contact. They were...

<p>Uvod: Pravovremena i pouzdana stratifikacija rizika pacijenata sa akutnim ST eleviranim infarktom miokarda (STEMI) je važna zbog adekvatnog zbrinjavanja ovih bolesnika. Primarna perkutana koronarna intervencija (pPCI) je dovela do značajnog pobolj&scaron;anja ishoda pacijenata sa STEMI, a time moguće i do promene prediktivne važnosti različitih faktora rizika. Jung variabla je jednostavan klinički indeks rizika koji se koristi tokom inicijalne prezentacije pacijenata. Pokazana je prediktivna vrednost Jung varijable za hospitalni mortalitet pacijenata sa STEMI lečenih fibrinolitičkom terapijom, dok uloga Jung varijable u dugoročnoj prognozi pacijenata lečenih putem pPCI nije razja&scaron;njena. Cilj: Dokazati prediktivni značaj i odrediti najbolju vrednost Jung varijable u predviđanju jednogodi&scaron;njeg neželjenog kliničkog ishoda kod pacijenata sa STEMI lečenih pPCI, kao i dokazati njenu validnost na nezavisnoj populaciji. Metode: Sprovedena je prospektivna studija praćenja pacijenata sa STEMI lečenih pPCI tokom godinu dana; primarna studija je sprovedena u Institutu za kardiovaskularne bolesti Vojvodine (IKVBV), a validaciona u Vojnomedicinskoj akademiji (VMA). Ishodi studije: smrtni ishod, akutna srčana insuficijencija (AHF) i zbirni neželjeni ishod. Jung varijabla je računata prema formuli: sistolni krvni pritisak / (srčana frekvencija &times; godine života) &times; 100. Prediktivna vrednost Jung variable i prethodno etabliranih skorova rizika TIMI, PAMI i Zwolle je evaluiarana adekvatnim statističkim metodama. Rezultati: Od 647 pacijenata uključenih u primarnu studiju, umrlo je 70 (10.8%), dok je AHF imalo 42 (6.5%); od 418 pacijenata uključenih u validacionu studiju umrlo je 33 (7.9%), a 52 (12.4%) pacijenta je imalo AHF. U primarnoj studiji Jung variabla je bila prediktor smrtnog ishoda i zbirnog neželjenog ishoda, dok je u validacionoj studiji Jung varijabla bila nezavisni prediktor nastanka AHF (p&lt;0.01). Za mortalitet, Jung variabla &lt;= 2.35 je imala sensitivnost 74.3% i specifičnost 77.3%. U primarnoj studiji, C-statistike i 95% interval poverenja Jung varijable za jednogodi&scaron;nji mortalitet i zbirni neželjeni ishod su bile dobre (0.784 (0.750-0.815) i 0.764 (0.729-0.796)) i poredive sa TIMI, PAMI i Zwolle skorovima (p&gt;0.05). C-statistika za predikciju AHF i zbirnog neželjenog ishoda u validacionoj studiji je bila dobra (0.732 (0.655-0.809) i 0.721 (0.655-0.788)), ali manja u odnosu na ostale ispitivane skorove (p&lt;0.01). Zaključak: Jung varijabla je nezavisni prediktor jednogodi&scaron;njeg smrtnog ishoda i zbirnog neželjenog ishoda pacijenata sa STEMI lečenih pPCI u IKVBV i nezavisni prediktor AHF u validacionoj studiji. Jung varijabla, TIMI, PAMI i ZWOLLE skorovi imaju dobar i porediv diskriminatorni kapacitet za sve praćene ishode u primarnoj studiji, dok je u validacionoj studiji Jung varijabla imala dobar diskriminatorni kapacitet za AHF i zbirni neželjeni ishod, ali manji u odnosu na ostale ispitivane skorove.</p> / <p>Background: Accurate eary risk stratification of patients with ST-elevation myocardial infarction (STEMI) is important in the management of this patients. Primary percutaneous coronary intervention (pPCI) in patients with STEMI has improved the outcome significantly and might have changed the relative contribution of different risk factors. Jung variable is a simple clinical risk index, designed to be used at initial presentation. It is predictive of in hospital mortality in STEMI patients treated with fibrinolysis, but it&#39;s long term predictive power in patients treated with pPCI is not elucidated. Aim: To determine the prognostic accuracy and cut off value of Jung variable for one year clinical outcomes in STEMI patients treated with pPCI, and to validate it in independent STEMI patients. Methods: Two prospective studies of consecutive patients treated with pPCI were conducted; primary study in Institute of Cardiovascular diseases of Vojvodina and validation study in Military medical academy. One-year clinical outcomes (all-cause mortality, acute heart failure (AHF) and combined end point) were assessed. The Jung variable was calculated using the equation: systolic blood/ (heart rate&times;age)&times;100. The predictive value of Jung variable and previously established scores TIMI, PAMI, and Zwolle were evaluated with adequate statistical analyses. Results: Out of 647 patients 70 (10.8%) died and 42 (6.5%) had AHF in primary, while out of 418 patients 33 (7.9%) died and 52 (12.4%) had AHF in validation study. In primary study Jung variable was independent predictor of mortality and combined end point, while it was independent predictor of AHF in validation study (p&lt;0.01). Jung variable &lt;= 2.35 had sensitivity 74.3% and specificity 77.3% for mortality. In a primary study, C-statistic and 95% confidence intervals of Jung variable for one-year mortality and for combined end point were well (0.784 (0.750-0.815) and 0.764 (0.729-0.796), respectively) and comparable to TIMI, PAMI and Zwolle risk score (p&gt;0.05). C-statistic for predicting one-year AHF and combined clinical endpoint in a validation study was well (0.732 (0.655-0.809) and 0.721 (0.655-0.788), respectively), but lower than other risk scores (p&lt;0.01). Conclusion: The Jung variable was independent predictor of one year mortality and combined end point in primary study STEMI patients treated with pPCI and independent predictor of AHF in validation study. The Jung variable, TIMI, PAMI, and Zwolle risk scores performed well and comparable for all clinical outcomes in primary, while in a validation study Jung variable performed well for AHF and combined end point, but significantly lower than other risk scores.</p>

Prevention of cardiovascular disease including myocardial infarction is in recent years a widely discussed topic. Cardiovascular diseases are currently the most widespread disease among the worldwide. This thesis deals with the participation of patients after myocardial infarction in active care of their health in secondary prevention. For failure principles of secondary prevention is increased morbidity of these cardiovascular diseases and subsequently increase the costs for further treatment. Well-timed and targeted prevention is very important how to reduce the cost of treatment and the restoration of health and maintaining a good quality of life. The thesis is composed of two parts, theoretical and empirical. The theoretical part of the thesis describes cardiovascular diseases, especially acute myocardial infarction, prevention and education, including educational process of secondary prevention. The empirical part was realized by qualitative research. Information was collected by semi-standardized interview technique. The interview was composed of both closed and open-ended questions where had respondents the opportunity to express individually. The research group consisted of patients and nurses of three selected cardiocenters in Czech Republic - University Hospital Motol, České Budějovice Hospital, a.s. and Faculty Hospital Plzeň. In the first phase of the research we examined the awareness of patients of secondary prevention. In addition we inquire into the level of their activities in the care of their health and the impact of realized changes to their life satisfaction. The research sample is consisted of 12 respondents - patients who in former times have had a myocardial infarction and now were re- hospitalized due to symptoms of heart problems. For the research were patients selected by random sampling and divided into three groups, four from each cardiocenter. In the second phase of the research, we investigated the options and rate of education of nurses taking care of patients after myocardial infarction in pursuance of secondary prevention and types of nursing documentation kept by nurses of cardiology ward. This part of the study sample was consisted of nine nurses working in selected cardiocentre. For one interview were approached three nurses from each chosen department with longer experience in the field of cardiology. For the research was established six goals and eight research questions. The results of the research showed that the patients are relatively well educated in the principles of secondary prevention of cardiovascular disease, but not enough by nurses. The knowledge of patients of prevention of myocardial infarction and secondary prevention measures is at a relatively good level. The rate of changes in the approach to secondary prevention is unsatisfactory and doesn´t meet the rate of improvement of capabilities of modern medicine regardless of their age and length of treatment. The research also showed a positive effect of the principles of secondary prevention on the quality of life of patients.

This thesis discusses the technique of flow cytometry for multiplex analysis and its use in conjunction with imunochemical methods. As part of this work was carried out clinical studies dealing with secondary prevention of myocardial infarction and atherosclerosis in 186 pacientů. In this time represents myocardial infarction worldwide civilizational problem. A number of possible parameters for monitoring atherosclerosis in the world is still an unresolved issue. In the practical part of this work we performed an analysis using Luminex xMAP technology for new parameters (adiponectin, resistin, osteopontin) to predict atherosclerotic disease associated with myocardial infarcion. Also we wanted to see how these parameters are changed in patients after increasing the dose of therapeutic drugs.

Univerzita Karlova 1. lékařská fakulta Studijní program: Doktorské studium biomedicíny 1. LF UK Studijní obor: Oborová rada Fyziologie a patofyziologie člověka MUDr. Gabriela Dostálová Disertační práce Vybrané aspekty akutního infarktu myokardu u mladých nemocných Specifics of Acute Myocardial Infarction in Young Adults Školitelé: prof. MUDr. A. Linhart, DrSc., doc. MUDr. D. Karetová, CSc. Praha 2017 Abstract Coronary heart disease is the leading cause of death in adults in the western world. Myocardial infarction can represent the lethal manifestation of coronary heart disease leading to sudden cardiac death. Although myocardial infarction mainly occurs in patients older than 45 years, the young population can be affected as well. Despite the relatively low incidence of myocardial infarction in the young population, the mortality rates and long-term disability make acute myocardial infarction in young patients an important clinical issue. Consequences of myocardial infraction usually have great impact on the young patient's psychology, ability to work and the overall quality of life. The management of young myocardial infarction patients should differ at least slightly from the older ones. Young patients usually have a different risk factor profile, clinical presentation, and prognosis in comparison with...

Introduction: Acute coronary syndromes (ACS) belong to cardiovascular diseases and contribute significantly to mortality, morbidity and disability in developed countries. Therefore the aim of current therapy is to reduce the risk of subsequent complications, including early death, and to increase patients' quality of life. For successful therapy it is necessary to follow regimen and dietary principles which are along with pharmacotherapy an integral part of treatment. Therefore sufficient knowledge of these principles by patients is a basic precondition for their successful treatment. Objectives: The aim of the diploma thesis was to assess dietary and regime knowledge in patients diagnosed with ACS. The specific objectives were: to determine an effect of sex or previous education on the knowledge; to describe patients' dietary habits; to specify their knowledge of nutrition; and to identify which knowledge is the most deficient. Methods: The research was carried out as a questionnaire survey. The questionnaire was compiled directly for the purposes of this thesis and was approved by the VFN Ethics Committee for use in inpatient wards at II. and III. internal clinics and at the Coronary unit of II. internal clinics of VFN. A total of 80 patients diagnosed with ACS were included in the study....

<p>Uvod: Pacijenti sa akutnim infarktom miokarda sa ST elevacijom treba da budu podvrgnuti reperfuzionoj terapiji, pre svega pPCI, bez obzira na životnu dob, ali zbog&nbsp; veće učestalosti komorbiditeta, faktora rizika za koronarnu bolest i vi&scaron;esudovne koronarne bolesti, kod pacijenata starije životne dobi, odluka o reperfuzionoj terapiji treba da se donese sa dobrom procenom odnosa rizik &ndash; benefit. Cilj: Utvrđene su razlike u kliničkoj slici, angiografskom nalazu, terapijskom pristupu, toku i ishodu akutnog infarkta miokarda sa ST elevacijom u starih osoba u odnosu na mlađu životnu dob (mlađi od 75 godina). Materijal i metode: U studiju je uključeno 240 pacijenata sa akutnim infarktom miokarda sa ST elevacijom, podeljeni u dve komparabilne grupe (120 bolesnika starijih i kontrolna grupa 120 mlađih od 75 godina), koji su izabrani metodom slučajnog izbora, po redosledu prijema u bolnicu. Za pacijente iz obe grupe popunjavan je upitnik, a tretirani su po jedinstvenom protokolu lečenja. Rezultati: U ispitivanom uzorku, u grupi bolesnika starijih od 75 godina reperfuziona terapija je bila primenjena u 85% slučajeva. Intrahospitalni mortalitet za ceo uzorak je 11,7% i u skladu je sa drugim istraživanjima [27]. Mortalitet u grupi pacijenata preko 75 godina je bio 12,5%, a u grupi pacijenata sa manje od 75 godina 10,8% (p=ns). Zaključak: Klinička slika bolesti kod bolesnika starije životne dobi je če&scaron;će atipična &scaron;to korelira sa drugim studijama [31, 35], a tok bolesti komplikovaniji i ishod lo&scaron;iji. Kod bolesnika starijih od 75 godina če&scaron;ća je vi&scaron;esudovna koronarna bolest. Primarna perkutana koronarna intervencija u akutnom infarktu miokarda sa ST elevacijom u pacijenata starije životne dobi potvrđuje benefit u lečenju, toku i ishodu bolesti.</p> / <p>Introduction: Patients with ST segment acute myocardial infarction should undergo reperfusion therapy, PCI in the first place, no matter their life age. However, due to high frequency of comorbidities, risk factors for coronary disease and multi-vessel coronary disease, the decision of reperfusion therapy in elderly patients should be made according to the good evaluation or risk benefit ratio. Aim: The differences have been determined in the clinical picture, angiographic finding, therapeutic approach, course and outcome of ST segment acute myocardial infarction in elderly patients in relation to younger life age (less than 75 years). Material and methods: The study included 240 patients with ST segment acute myocardial infarction. They were randomly divided into two comparable groups according to the date of their hospitalization (120 patients older than 75 and control group of 120 patients younger than 75 years). Both groups of patients filled out the survey and were treated according to the same protocol. Results: In the examined sample of the group of patients older than 75 the reperfusion therapy was performed in 85% of cases. Intrahospital mortality for the entire sample was 11.7% and is in coherence with other researches [27]. Mortality in the group of patients older than 75 years was 12.5%, and it was 10.8% (p=ns) in the group of patients younger than 75.&nbsp; Conclusion: Clinical picture of disease in elderly patients is atypical thus correlating with other studies [31, 35], and course of illness more complicated and with a worse outcome. Multi-vessel disease is more common in patients older than 75 years. Primary percutaneous coronary intervention in STEMI in elderly patients confirms benefits in treatment, course and outcome of disease.</p>