Sökning: "conductance catheter"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden conductance catheter.

1. 1. Development of a thin, soft, single segment conductance catheter for monitoring left ventricular pressure and volume

   Författare :Camilla Carlsson; KTH; []
   Nyckelord :Left ventricular function; Left ventricular volume; Conductance catheter; Segment volume;

   Sammanfattning : Knowledge of the leftventricular (LV) pressure-volume relation, along withparameters derived from this relation, have led to newpossibilities for the characterisation of cardiac pumpfunction, in both experimental studies and clinicalsettings.The pressure-volume diagram is apowerful tool for visualising LV performance, but in order tobe clinically useful it is necessary to make plots continuouslyand on-line. LÄS MER

3. 2. Left ventricular conductance volumetry technique applied to a pressure guide wire

   Författare :Emil Söderqvist; KTH; []
   Nyckelord :Pressure-volume; Conductance catheter; Left ventricle; Segment volumes;

   Sammanfattning : .... LÄS MER

4. 3. Cardioplegia and cardiac function : evaluated by left ventricular pressure-volume relations

   Författare :Anders B Ericsson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :cardioplegia; simultaneous cardioplegia; intermittent warn cardioplegia; cardiac function; pressure-volume loops; conductance catheter; heart rate;

   Sammanfattning : Purpose: This thesis is focused on studies of blood cardioplegia in order to evaluate regimens of myocardial protection during cardiac surgery. To further bring down operative mortality and morbidity, in patients with acutely ischaemic hearts, an optimal peroperative myocardial management is essential. LÄS MER

5. 4. New approaches to monitoring of cardiac function

   Författare :Emil Söderqvist; Lars-Åke Brodin; Michael Haney; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; left ventricle; pressure and volume; Medical engineering; Medicinsk teknik;

   Sammanfattning : Left ventricular pumping performance may be described by intraventricular pressure and volume variables, usually presented as a pressure-volume plot. However, on-line monitoring of left ventricular pressure and volume with high temporal resolution requires the use of an invasive catheter technique such as, for example, the conductance catheter method. LÄS MER

7. 5. Factors of importance for labor induction

   Författare :Tove Wallström; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: What initiates the onset of labor is still not clarified, and it is debated whether expectant or active management is the best for the woman and the fetus. Active management means induction of labor (IOL) which is a very common obstetric intervention and is used in several situations. LÄS MER