Sökning: "Dobutamine stress"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden Dobutamine stress.

1. 1. Takotsubo stress cardiomyopathy and different types of stress

   Författare :Olov Collste; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :takotsubo stress cardiomyopathy;

   Sammanfattning : Myocardial infarction with normal coronary angiography (MINCA) is an important subgroup of myocardial infarction for which the prevalence, underlying pathophysiology, prognosis and optimal management are still largely unknown. Interest in and awareness of MINCA has increased in recent years due to the frequent use of coronary angiography, the description of Takotsubo stress cardiomyopathy (TSC) and new sensitive troponin assays. LÄS MER

3. 2. Importance of cardiac reserve for evaluation and prediction of cardiac function and morbidity assessed by low-dose dobutamine stress echocardiography

   Författare :Margareta Scharin Täng; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
   Nyckelord :Stress echocardiography; Heart failure; Beta-1-adrenoceptor; Cardiac reserve;

   Sammanfattning : This thesis aimed to evaluate the cardiac reserves capacity to be used to predict treatment effects, sub clinical heart disease and to evaluate b1-adrenoceptor (AR) gene polymorphism (Ser49Gly). Studies were performed in patients with dilated cardiomyopathy, in rats (young, healthy, diabetic and hypertensive), in mice (immunized against the ?1AR) and in heart-transplanted patients. LÄS MER

4. 3. The importance of long axis function -an echocardiographic study with respect to ageing, response to treatment, prediction of survival and effect of warm water immersion

   Författare :Bente Grüner Sveälv; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
   Nyckelord :Echocardiography; Long axis function; Heart failure; Age; Dobutamine stress; Recover; Prognosis; Warm water immersion;

   Sammanfattning : Echocardiographic M-mode measurement of atrioventricular plane displacement (AVPD) and determination of annular velocity with Tissue Doppler imaging (TDI) is a reliable method to gauge ventricular long axis function for quantification of myocardial contractility and relaxation. The aim of this thesis was to increase the understanding of the importance of long axis function with respect to ageing, response to pharmacological treatment, prediction of survival, and enhanced load condition caused by warm water immersion. LÄS MER

5. 4. Cardiac electrophysiologic effects of mental stress

   Författare :Per Insulander; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: Mental stress may trigger serious arrhythmias. Mental stress tests cause significant increases in heart rate, blood pressure and cardiac output. When beta-adrenergic inhibition is considered for secondary antiarrhythmic prophylaxis beta1 selective agents are often preferred because of less adverse reactions. LÄS MER

7. 5. Detection of Myocardial Ischemia using Real-Time Myocardial Contrast Echocardiography

   Författare :Petri Gudmundsson; Malmö högskola; []
   Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; myocardial contrast echocardiography; MCE; stress echocardiography; adenosine; perfusion; real-time; visual; quantative; wall motion; power modulation; bedside; SPECT; coronary insufficiency;

   Sammanfattning : Diagnostisering av syrebrist i hjärtmuskeln med hjälp av kontrastförstärkt ultraljudsundersökning av hjärtmuskelns genomblödning. Ultraljudsundersökning av hjärtat (ekokardiografi) används mycket inom hjärtsjukvården idag, oftast för att utreda hjärtats och hjärtklaffarnas anatomi och funktion. LÄS MER