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Visar resultat 1 - 5 av 13 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Methods for analysis of heart function

   Författare :Håkan Kronander; KTH; []
   Nyckelord :;

   Sammanfattning : There is a continuous demand for improvements in methods foranalysis of heart function. This thesis investigates both themeasurement of left ventricular (LV) volume for evaluating theheart function and the exercise electrocardiographic (ECG) testfor diagnosis of coronary artery disease (CAD). LÄS MER

3. 2. Cerebral intraventricular hemorrhage and post-hemorrhagic ventricular dilatation in preterm infants: new mechanistic insights and potential treatment strategies

   Författare :Olga Romantsik; Lund Pediatrik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prematurity; Intraventricular hemorrhage; Post-hemorrhagic ventricular dilatation; White matter injury; Gray matter injury; Preterm rabbits; Extracellular hemoglobin; a-1-microglobulin; animal IVH models; High frequency ultrasound; MRI; corticogenesis;

   Sammanfattning : Intraventricular hemorrhage (IVH) is one of the major co-morbidities of premature birth associated with post-hemorrhagic ventricular dilatation (PHVD) development, long-term neurodevelopmental impairment, behavioral problems, special educational needs, and dependency on social security.Hypothesis and aims: We believe that extravasated blood and further release of extracellular hemoglobin (Hb) are crucial in brain injury following IVH and consequent development of PHVD. LÄS MER

4. 3. Preterm intraventricular cerebral hemorrhage: role of cell-free hemoglobin

   Författare :Alex Adusei Agyemang; Lund Pediatrik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Intraventricular hemorrhage; Preterm birth; Haptoglobin; Alpha 1 microglobulin; cerebellar hypoplasia; periventricular white matter; cell-free hemoglobin;

   Sammanfattning : Cerebral intraventricular hemorrhage in preterm infants continues to be a major clinical problem associated with neurodevelopmental abnormalities manifested by cognitive, behavioral, attentional, social and motor deficits. Hypothesis and aims: The central thesis is that the cytotoxicity of extravasated blood and of consequently released cell-free hemoglobin(Hb) is pivotal for the pathophysiological events causally involved in brain injury. LÄS MER

5. 4. The impact of nutrition on growth, biomarkers, and health outcomes in preterm infants

   Författare :Cornelia Späth; Magnus Domellöf; Elisabeth Stoltz Sjöström; Deborah O’Connor; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Preterm infant; parenteral nutrition; energy intake; nutrient intakes; postnatal growth; electrolyte imbalances; sodium supply; hypernatremia; intraventricular hemorrhage; pediatrik; Pediatrics; Nutrition; näringslära;

   Sammanfattning : Introduction: Nutrients play a crucial role for growth and brain development after preterm birth. Meeting the nutritional needs of preterm infants is challenging. Particularly, the most immature infants have a high risk of malnutrition and poor growth during hospital care. LÄS MER

7. 5. Adjuncts to the Conventional 12-Lead ECG: Assessment of High-Frequency QRS Components and Additional Leads

   Författare :Elin Trägårdh; Lund Klinisk fysiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; heart disease; Physiology; Fysiologi; Cardiovascular system; Kardiovaskulära systemet; myocardial infarction; 16-lead ECG; electrocardiogram; 24-lead ECG; HF-QRS;

   Sammanfattning : The standard 12-lead electrocardiogram (ECG) is one of the most commonly used methods for diagnosing heart disease. Standard ECG is not always optimal, however, and new ECG methods can provide additional information. Analysis of high-frequency QRS components (HF-QRS) has been shown to increase the diagnostic performance of the ECG. LÄS MER