24 results
The main objective is to investigate the effect of tidal volume, airway pressure, breathing frequency, interbeat interval of the heart, respiratory resistance and lung compliance on arterial pressure variation in healthy subjects. The secondary…
Primary goal:To investigate whether specific plaque characteristics are associated with ischemic lesions, especially (clinically silent) cerebral micro-infarcts, we will perform preoperative high resolution 3 and 7 Tesla MR plaque imaging in…
The main objective of this study is to determine the relationship between arterial pressure variability indices and tissue perfusion/oxygenation between normo- and hypovolemia in healthy spontaneously breathing subjects .
To compare the accuracy and precision of noninvasive, continuous finger arterial blood pressure and noninvasive hemoglobin monitoring (SpHb) by ccNexfin with intra-arterial blood pressure and in blood sample measured hemoglobin values, respectively…
Aim of the studyIn this prospective, observational trial, we aim to investigate the accuracy, precision and concordance of VFR in patients after open abdominal aortic aneurysm (AAA) repair during their stay in the ICU. CO measurements obtained with…
To measure individual heparin requirements in 30 patients undergoing arterial vascular surgery.
To identify possible in vivo biochemical and biological markers related to aneurysm wall strength.
To assess whether the non-invasive duplex method can reliably determine diameters and flow characteristics in the LIMA origin of LIMA-LAD versus Y-bypass grafts late after CABG in relation to-the number of distal anastomosis-the adaptation to…
Correlate plaque characteristics, determined on high resolution 7 Tesla MRI, with cerebral damage ((clinically silent) cerebral (micro) infarcts or bleeds), also seen on 7 Tesla MRI. As gold standard histology of the plaques will be obtained
Validation of the ability to use ETCO2 as a patient-specific marker for the quality of flow related to the depth of compressions. Control using invasive bloodgas values.
Objectives of the study are to evaluate the clinical applicability of the PeriFlux System 5000 and to investigate the reproducability of its measurements on inter- (and intra-observer) variability.
To assess the level of functional status of patients with critical limb ischemia after percutaneous revascularization or bypass surgery and major amputation and to identify subgroups that might benefit from primary amputation instead of…
To assess the influence of bloodpressure, wall thickness, wall properties, and geometry changes throughout the cardiac cycle on the wall stress calculations. Previous analysis were performed with an assumed bloodpressure value, an uniform wall…
The objective of this study is to identify whether pelvic collateralisation occurs when a temporary acute obstruction is induced in the left common iliac vein of healthy subjects.
Primary Objective: • Investigate if CT is a reliable modality to detect blood flow distal to the LAAO device validated by TEE.Secondary Objective(s): • Evaluate the reproducibility of position and blood flow measurements: inter and intra observer…
To provide evidence demonstrating that ACT-guided heparin management during pulmonary thrombo-endarterectomy (PTE) involving cardiopulmonary bypass (CPB) and deep hypothermic circulatory arrest (DHCA) will result in inadequate heparinization and…
To investigate the development of white matter lesions, changes in cerebral perfusion and cerebral vascular structures on 3T and 7T MRI following carotid revascularization
The purpose of this study is to explore the usefulness of various neurophysiological tests regarding accuracy and feasibility for the detection of spinal cord ischemia. In particular, to find a diagnostic test which is acceptable for the…
This is a pilot study to assess the feasibility and tolerability of mitochondrial oxygenation measurements in patients with moderate to severe claudication (Rutherford class 4-6) with the COMET device in combination with Alacare. As secondary aims…
The primary objective is to investigate the feasibility of NIR fluorescence imaging with intra-arterial ICG to detect differences in foot perfusion following successful endovascular lower extremity revascularization.