Sökning: "Cardiac Pacemaker"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden Cardiac Pacemaker.

  1. 1. Cardiac involvement in familial amyloidosis with polyneuropathy

    Författare :Peter Eriksson; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; amyloidosis; arrhythmias; cardiac pacing; cardiac radionuclide; imaging; echocardiography; electrocardiography; pathology;

    Sammanfattning : Familial amyloidosis with polyneuropathy (FAP) is a neuropathic form of heredofamilial systemic amyloidosis. Clusters of patients have been reported predominantly from Portugal, Japan and Sweden. The present study examines the involvement of the heart in individuals with the Swedish variety of FAP. LÄS MER

  2. 2. The pace of innovation : Patterns of innovation in the cardiac pacemaker industry

    Författare :Patrik Hidefjäll; Linköpings universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cardiac Pacemaker; Competition; Competitive Advantage; Defibrillator; Dominant Design; Innovation; Organizational Field; Patterns of Innovation; Technical Change; Technology Cycle; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : The PhD thesis "The Pace of Innovation" addresses the questions how patterns of innovation change over time in an industry, their consequences for competition and how institutional conditions in an industry shape determinants of patterns of innovation. Patterns of innovation mainly refer to how certain regularities in the diversity, types and locus of innovation change in an industry according to a technology and industry life cycle. LÄS MER

  3. 3. Long-term outcome and exercise capacity in adults with congenital heart disease with focus on tetralogy of Fallot

    Författare :Anette Sandström; Bengt Johansson; Camilla Sandberg; Daniel Rinnström; Michael Y. Henein; Erik Thunström; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adults congenital heart disease; tetralogy of Fallot; exercise test; exercise capacity; mortality; register; physical activity; pacemaker; implantable cardioverter defibrillator; quality of life; Medfödda hjärtfel; Fallots tetrad; arbetsprov; fysisk prestationsförmåga; mortalitet; register; fysisk aktivitet; pacemaker; implanterbar defibrillator; livskvalitet; kardiologi; Cardiology; epidemiologi; Epidemiology;

    Sammanfattning : Background: Congenital heart disease (CHD) includes a wide range of malformations, from simple lesions, e.g. ventricular septal defect, that resolve spontaneously, to severe lesions, e.g. LÄS MER

  4. 4. Development and Implementation of Cardiac Event Detectors in Digital CMOS

    Författare :Joachim Rodrigues; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; Elektronik och elektroteknik; Electronics and Electrical technology; event detection; cardiac pacemaker; sleep- transistors; low-power; ASIC; Neural Networks; Electrogram; Signalbehandling; Wavelets;

    Sammanfattning : This doctoral dissertation presents the development and digital hardware realization of cardiac event detectors. Implantable medical appliances, as the cardiac pacemaker, have progressed from a life sustaining device to a device that considerably improves life quality for all ages. LÄS MER

  5. 5. Computer-based modeling and simulation in the analysis of cardiac arrhythmias and cardiac pacing

    Författare :Hans Åhlfeldt; Linköpings universitet; []
    Nyckelord :arrhythmogenic mechanisms; modulated parasystole; phase response curve; pacemaker follow-up; modeling; simulation; MEDICINE; MEDICIN;

    Sammanfattning : Most systems for ECG analysis deal with QRS classification and arrhythmia detection but do not address the problem of finding the underlying mechanism responsible for the manifest arrhythmia. Although it is possible to distinguish among different arrhythmogenic mechanisms on the cellular level, it is far more difficult in the clinic based on ECG recordings. LÄS MER