Search for dissertations about: "Qt interval"

Showing result 1 - 5 of 21 swedish dissertations containing the words Qt interval.

2. 1. Myocardial electromechanical function in long QT syndrome

   Author : Dafni Charisopoulou; Michael Y. Henein; Annika Rydberg; Anders Jonzon; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Long QT syndrome; stress-echocardiography; left ventricular filling; mechanical dispersion; diastolic myocardial function; exercise; arrhythmia; electromechanical window; speckle-tracking echocardiography; myocardial relaxation sequence.; kardiologi; Cardiology; cardiovascular disease; hjärt- och kärlforskning;

   Abstract : AIM: The aim of this thesis is to assess, in LQTS and according to genotype, the myocardial electromechanical (EM) function response to exercise, its relation to symptoms and its response to b-blocker therapy. To achieve this aim, we conducted 4 studies with the following specific objectives: i. READ MORE

4. 2. Long QT syndrome : studies of diagnostic methods

   Author : Ulla-Britt Diamant; Steen M Jensen; Annika Rydberg; Thomas Gilljam; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; kardiologi; Cardiology;

   Abstract : Background: The Long QT Syndrome (LQTS) is a hereditary heart disease with risk of malignant ventricular arrhythmia and sudden cardiac death. Despite our increased knowledge about genotype and phenotype correlation we still rely on the 12-lead ECG for assessment of the QT interval and the T-wave morphology for diagnosis and risk stratification. READ MORE

5. 3. Repolarization studies in the long QT syndrome

   Author : Pia Dahlberg; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; long QT syndrome; repolarization; hysteresis; vectorcardiography; QT adaptation; ventricular repolarization;

   Abstract : ABSTRACT Background: Sudden cardiac death in the young is predominantly caused by inherited cardiac conditions. Long QT syndrome (LQTS) is one of the most common of these disorders. Since risk stratification relies largely upon the heart rate (HR) corrected QT interval (QTc), it is crucial to identify an appropriate method for QT correction. READ MORE

6. 4. Antiarrhythmic and arrhythmic effects of an Ikr-blocking class III agent. A clinical and electrocardiographic study of almokalant

   Author : Birgitta Houltz; Göteborgs universitet; []
   Keywords : Almokalant; class III antiarrhythmic agent; potassium channel blocker; atrial fibrillation; sinus rhythm; conversion; electrocardiographic; QT interval prolongation; T wave morphology; prediction; torsades de pointes; proarrhythmia; QT dispersion; ventric;

   Abstract : The interest in class III drugs has increased over the last decades as being potent antiarrhythmic agents in their mode of action by prolongation of repolarization and with no effect on conduction. Class I antiarrhythmic agents have proven effective in conversion of atrial fibrillation (AF), but may cause serious proarrhythmia. READ MORE

7. 5. Hypoglycaemia: Studies on central and peripheral nerve function

   Author : Bodil Eckert; Lund Medicin; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Endocrinology; severe retinopathy.; QT interval; Type 1 diabetes; cerebral blood flow; secreting systems; diabetology; Endokrinologi; sekretion; diabetologi;

   Abstract : Hypoglycaemia is an acute complication to insulin-treatment in type 1 diabetes mellitus, which affects many physiological parameters, deteriorates the cognitive function, and may lead to death. The aim of this thesis was to study nerve function, cognitive function and cerebral blood flow during and after hypoglycaemia in healthy subjects and to study certain aspects of a fall in blood glucose in patients with type 1 diabetes mellitus. READ MORE