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Interpretation of electrocardiograms in the resuscitation department and in emergency pre hospital care
Vanča, Michal ; Jirkovský, Daniel (advisor) ; Hocková, Jana (referee)
(v AJ) 1) introduction - introduction to the problem The diploma thesis on the interpretation of electrocardiograms by nurses and paramedics in the resuscitation department and in urgent pre-hospital care includes a theoretical summary of ECG pathologies, as well as addresses the issue of correct interpretation of electrocardiograms in relation to gender, age, workplace experience, and suggestions for improvement. 2) goal formulation, methodology The goal of the diploma thesis was to map the level of knowledge in interpreting electrocardiograms by nurses and paramedics in the resuscitation department and in urgent pre hospital care, depending on age, gender, length of experience, and job placement, with a focus on ECG interpretation. For the empirical part of the thesis, which deals with answering predetermined goals, a quantitative research method was chosen, conducted in the resuscitation department and emergency medical services. Data collection was carried out through a questionnaire survey using a self-constructed questionnaire. The survey focused on the theoretical knowledge of ECG interpretation by nurses and paramedics. 3) main results It was found that orientation in basic ECG pathologies did not pose significant difficulties for respondents, while for more difficult interpretations, the...
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Software for ECG analysis
Plch, Vít ; Hejč, Jakub (referee) ; Ronzhina, Marina (advisor)
This bachelor thesis deals with design and construction of tool for analysing electrocardiograms. The theoretical part deals with the origin of the action potential, propagation of the action potential through conduction system of the heart, failure of electrical impulse propagation through the con-duction system; different aspects of disorders, which can be found in experimental electrograms recorded from animal isolated hearts (database of electrograms, the Department of Biomedical En-gineering, FEEC, BUT), are also discussed. Software for electrograms draw and annotation available on the DBME, namely EG_Anotation and EG_RR_View, are described. As a result, the design and construct of ECG_ANN, the tool for the electrograms annotation, is proposed with regard to the advantages and disadvantages of mentioned software. At the end of the bachelor thesis there are the guide for ECG_ANN and discussion about problems which appears in design and construct of this tool.
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ECG signal classification
Smělý, Tomáš ; Harabiš, Vratislav (referee) ; Hrubeš, Jan (advisor)
This thesis deals with classification of different types of time courses of ECG signals. Main objective was to recognize the normal cycles and several forms of arrhythmia and to classify the exact types of them. Classification has been done with usage of algorithms of Neural Networks in Matlab program, with its add-on (Neural Network Toolbox). The result of this thesis is application, which makes possible to load an ECG signal, pre-process it and classify its each cycle into five classes. Percentage results of this classification are in the conclusion of this thesis.
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Artificial aorta for activity demonstration of intraaortal baloon contrapulsation
Bičiště, Jan ; Rampl, Ivan (referee) ; Zeman, Václav (advisor)
This dissertation work describes design and construction of simulated aorta device intended to demonstrate performance of the intra-aortal balloon catheter (IAB), and to test reaction of the contra-pulsation pump during simulated cardiac output in conditions of tachycardia, bradycardia and arrhythmia. The major part of the device is transparent plastic tube. The pressure pulses (waves) are generated inside this plastic tube to simulate real cardiac output. These pressure pulses are generated by step motor with membrane. The step motor is controlled by programmable control system AMiNi-E. Individual pressure pulses simulate cardiac output in conditions of tachycardia, bradycardia and arrhythmia. Required simulated cardiac output is selected by control switches. Generated pressure pulses are read by pressure sensor and are transferred to the control system of the configuration computer. Read data can be displayed as graphs in program Microsoft Excel. The intra-aortal balloon catheter (IAB) is inserted inside the aorta and is connected with contra-pulsation pump which on pressure pulse is responding.
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Analyzer of cardiac waveform
Zmeškal, Ladislav ; Říha, Kamil (referee) ; Číž, Radim (advisor)
The thesis describes design, algorithmization and realization of graphical application for recording EKG and PPG signal using LabJack UE9 tool in Matlab program, it also describes subsequent deposition of recorded signals and their processing, such as optional selection, cropping and filtering. Furthermore there are described types of filters, methods for detecting basic parameters of EKG and PPG signals and methods for detecting R waves and Systolic peaks. Based on detection of those parameters, algorithms for computing average heart rate and finding arrhythmias were designed and tested. Last part of the thesis includes an evaulation which compares values detected by designed algorithms with values from public database which includes reference annotation.
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Detection of ventricular premature beats in long-term ECG
Šagát, Martin ; Kozumplík, Jiří (referee) ; Maršánová, Lucie (advisor)
The thesis deals with problems of premature ventricular complexes and ways of their detection. Heart’s basic physiological activities and the principle of their measurement are described in the theoretical part of the thesis. It deals specifically with the appearance and manifestations of ventricular extrasystoles in the ECG. The thesis also discusses various ways of detecting premature ventricular complexes. In this thesis, detection based on morphological features, wavelet transform and signal energy was used. All methods were implemented using Matlab and tested on all signals of the MIT-BIH Arrhythmia database.
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Detection of atrial fibrillation using ECG Signals
Běhunčíková, Vendula ; Ronzhina, Marina (referee) ; Kozumplík, Jiří (advisor)
Atrial fibrillation is one of the most common cardiac rhythm disorders. The prevalence of atrial fibrillation is reported at 1-6 % of the adult population. The chances of developing atrial fibrillation increase with age. An early detection of this arrhythmia is a key to prevent more serious conditions. Many ways have been found to detect atrial fibrillation episodes in ECG including deep learning methods. The aim of this bachelor’s thesis is to describe the problem of atrial fibrillation and the methods used for detection in the ECG record, design an atrial fibrillation detector and test its results. Detector is implemented using a Matlab R2020b software.
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Evaluation of heart arrhythmias
Šromová, Michaela ; Kozumplík, Jiří (referee) ; Provazník, Ivo (advisor)
The thesis is a brief description of the anatomy and electrophysiology of the heart. The thesis also describes the different types of electrocardiogram and cardiac arrhythmias with a description of their treatment. The next section provides design of a programme for the classification of selected types of arrhythmias, and three options for rhythm detection, using the length of RR intervals, finding extremes of P and R waves, measuring the length of intervals and heights of amplitudes. The practical part of this work was to create a rhythm classifier assigning appropriate treatment of arrhythmias, verification of its functions on the signals available from the library of arrhythmias and its evaluation.
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Needs for Electrocardiogram Evaluation by a Paramedic
PROKOP, Jakub
This bachelor's thesis deals with the issue of the needs of a paramedic in the evaluation of an electrocardiogram. In the theoretical part, the evaluation of the electrocardiogram was described, starting with the basic anatomy and physiology of the vascular supply of the heart and the conduction system of the heart. Furthermore, a description of the electrocardiograph was given, and at the end, arrhythmias with ischemic changes were evaluated. The aim was to map the abilities of paramedics in evaluating the electrocardiogram and their need for education with possible suggestions for changes in education before and after starting work. Quantitative research was used in the empirical part. Data collection was carried out using a self-structured questionnaire, in which 24 items were listed. The questions were of both open-ended and closed-ended type, with responses rated using a modified Likert scale. The questionnaire was fully anonymous and intended for paramedics from the entire Czech Republic. The basic descriptive characteristics of the research group were processed. Quantitative data were expressed by mean and standard deviation and optionally supplemented with histograms according to predefined limits. For qualitative data, frequency characteristics (absolute and relative frequencies) were processed. The results of our research investigation point to the unpreparedness of paramedics in the evaluation of pathological changes on the ECG. Respondents were also found to have a need for further training in ECG assessment and would welcome periodic training on the latest in cardiology, assessment practice at their field bases, or specialist hospital internships. To improve undergraduate education, they would include an internship in a cardiac center, practical training in a cardiology department, or professional seminars focused on EKG evaluation.
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Automated external defibrillators in theory and practice
Burianová, Lucie ; Sojková, Monika (advisor) ; Heczková, Jana (referee)
The bachelor thesis deals with the treatment and importance of location Automated external defibrillators in the particular units of Integrated Rescue System. In the theoretical part I describe basic anatomy and physiology of heart, patophysiology of selected cardiac arrhythmias. The largest part is devoted to Automated external defibrillators. In the several parts I explain philosophy of defibrillators, description of instruments, indication and contraindication of use, correctly use of defibrillators, the pros and cons their use in basic life support. In this bachelor thesis I write history of defibrillation and Automated external defibrillators. I mention studies, which were performed on this topic. In the practical part the quantitative method was used in the form of anonymous questionnaires. The survey was conducted at the particular units of Integrated Rescue System.
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