Sökning: "Cardiac resynchronization therapy"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Cardiac resynchronization therapy.

1. 1. Cardiac Resynchronization Therapy Optimization : Comparison and Evaluation of Non-invasive Methods

   Författare :Elena Sciaraffia; Carina Blomström Lundqvist; Giuseppe Boriani; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cardiac resynchronization therapy; device optimization; left ventricular contractility; Cardiology; Kardiologi;

   Sammanfattning : The general purpose of this thesis was to investigate new cardiac resynchronization therapy (CRT) optimization techniques and to assess their reliability when compared to invasive measurements of left ventricular contractility (LV dP/dtmax).We first assessed whether cardiac output (CO) measured by trans-thoracic impedance cardiography could correctly identify the optimal interventricular (VV) pacing interval while using invasive measurements of LV dP/dtmax as reference. LÄS MER

3. 2. Cardiac Resynchronization Therapy - Risk Stratification and Long-Term Outcome

   Författare :Christian Reitan; Kardiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac Resynchronization Therapy; heart Failure; Device therapy; long-term outcome;

   Sammanfattning : Heart failure is a condition that will affect 2-3% of the population. Around one third of the patients have a decreased LVEF and a widened QRS complex as a sign of ventricular dyssynchrony. CRT has emerged as a treatment that reduces morbidity, mortality and improve functional status in this population. LÄS MER

4. 3. Non-invasive Prediction of Cardiac Resynchronization Therapy. Focus on the role of atrial fibrillation, device-diagnostics and ECG-based risk markers

   Författare :Jonatan Jacobsson; Kardiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac Resynchronization Therapy Devices; Atrial fibrillation; Heart failure; Risk-prediction; Device-diagnostics; Electrocardiography; Interatrial block; Abnormal P-wave terminal force in lead V1;

   Sammanfattning : .... LÄS MER

5. 4. Electromechanical effects and optimization modalities of cardiac resynchronization therapy

   Författare :Cinzia Valzania; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Cardiac resynchronization therapy; coronary blood flow; dyssynchrony; echocardiography; exercise; heart failure; hemodynamics; intracardiac electrogram; intracardiac impedance; optimization;

   Sammanfattning : Background and aims: Heart failure is a major health care problem, with high morbidity and mortality rates. In recent years, cardiac resynchronization therapy (CRT) has become an established additive treatment for patients with advanced heart failure, left ventricular (LV) dysfunction, and wide QRS complex. LÄS MER

7. 5. The clinical value of total isovolumic time

   Författare :Gani Bajraktari; Michael Henein; Krister Lindmark; Lars-Åke Brodin; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Heart failure; cardiac resynchronization therapy; predictors; echocardiography; total isovolumic time; six-minute walk test; left ventricular dyssynchrony;

   Sammanfattning : The objective of this thesis is to evaluate the use of Doppler echocardiography markers ofglobal dyssynchrony [total isovolumic time (t-IVT)] in the following 6 studies: 1) Its prognostic role in predicting cardiac events in patients undergoing CABG surgery,compared with conventional global systolic and diastolic measurements. 2) Its additional value in predicting six minute walk test (6-MWT) in patients with leftventricular (LV) ejection fraction (EF) . LÄS MER