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Clustering Of Ecg Cycles
Ředina, Richard
The study is focused on a design of a reliable approach for ECG cycles clustering. It would be helpful for automatic assessment of various pathological patterns in ECG. Proposed method was tested and tuned on real data from ambulatory ECG database. The algorithm comprises ECG preprocessing, adjustment of R-peak positions available in database, creation of a template cycle, computation of features mainly representing correlation between particular cycles and the template, and, clustering of cycles within ECG via k-means. The appropriate number of clusters is derived via analysis of silhouette values. Resulting success of the algorithm in comparison with available manual scoring is: Sensitivity = 0.55 and Specificity=0.94.
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Early postoperative care of the patient with the left ventricular assist device HeartMate II
Malá, Irena ; Hocková, Jana (advisor) ; Slabý, Josef (referee)
Author's name: Bc. Irena Malá School: Charles university, Prague 1st Faculty of Medicine Institut of Theory and Practice of Nursing Vídeňská 800, 140 59 Prague 4 - Krč Program: Health Care Administration Title: Early postoperative care of the patient with the left ventricular assist device HeartMate II Diploma thesis supervisor: PhDr. Hocková Jana, PhD. Number of pages: 170 Number of attachments: 41 Year: 2013 Key words: early postoperative care, hypotermia, blood transfusion, fluid resuscitation, perioperative cardiovascular dysfunction, pharmacologic support, ventricular assist device HeartMateII, monitoration, device, cardiac arrhythmias, ventilation management, postoperative anticoagulation, glycemic kontrol, renal insufficiency, nutrition, nursing, complications, physiotherapy, psychological aspects The occurrence of the heart failure is similar to an epidemic with high mortality. This fact, together with stagnate or even decreasing number of suitable donors, led to a need of replacing the heart pump activity with an artificial one. Mechanical cardiac support systems are sophisticated devices that are able to support a certain period of time or completely replace the function of the heart as a pump. The indications implantation of mechanical cardiac support is significant symptomatic heart...
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