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Papers by K. Van de Vijver

Research paper thumbnail of Interim results of an ongoing study on the use of non-invasive hemodynamic monitoring with Nexfin in critically ill patients

Research paper thumbnail of Validation of non-invasive hemodynamic monitoring with Nexfin in critically ill patients

Research paper thumbnail of Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Research paper thumbnail of The respiratory abdominal variation test (RAVT): a noninvasive way to estimate abdominal wall compliance (Cab)

The respiratory abdominal variation test (RAVT): a noninvasive way to estimate abdominal wall compliance (Cab)

Fluids, 2012

Research paper thumbnail of Effect of enteral nutrition speed on intrafastric pressure measurement

Effect of enteral nutrition speed on intrafastric pressure measurement

American Surgeon, 2011

Research paper thumbnail of Impact of body anthropomorphic parameters on baseline intra-abdominal pressure measurements in critically ill patients

Impact of body anthropomorphic parameters on baseline intra-abdominal pressure measurements in critically ill patients

Fluids, 2012

Research paper thumbnail of Body antropomorphic data in relation to intra-abdominal pressure

Body antropomorphic data in relation to intra-abdominal pressure

American Surgeon, 2011

Research paper thumbnail of Nexfin® non-invasive continuous hemodynamic monitoring: validation against continuous pulse contour and intermittent transpulmonary thermodilution derived cardiac output in critically ill patients

Fluids, 2012

Introduction. Nexfin (Bmeye, Amsterdam, Netherlands) is a noninvasive cardiac output (CO) monitor... more Introduction. Nexfin (Bmeye, Amsterdam, Netherlands) is a noninvasive cardiac output (CO) monitor based on finger arterial pulse contour analysis. The aim of this study was to validate Nexfin CO (NexCO) against thermodilution (TDCO) and pulse contour CO (CCO) by PiCCO (Pulsion Medical Systems, Munich, Germany). Patients and Methods. In a mix of critically ill patients (= 45), NexCO and CCO were measured continuously and recorded at 2-hour intervals during the 8-hour study period. TDCO was measured at 0-4-8 hrs. Results. NexCO showed a moderate to good (significant) correlation with TDCO (2 0.68, < 0.001) and CCO (2 0.71, < 0.001). Bland and Altman analysis comparing NexCO with TDCO revealed a bias (± limits of agreement, LA) of 0.4 ± 2.32 L/min (with 36% error) while analysis comparing NexCO with CCO showed a bias (±LA) of 0.2 ± 2.32 L/min (37% error). NexCO is able to follow changes in TDCO and CCO during the same time interval (level of concordance 89.3% and 81%). Finally, polar plot analysis showed that trending capabilities were acceptable when changes in NexCO (ΔNexCO) were compared to ΔTDCO and ΔCCO (resp., 89% and 88.9% of changes were within the level of 10% limits of agreement). Conclusion. we found a moderate to good correlation between CO measurements obtained with Nexfin and PiCCO.

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica, 2014

BACKGROUND Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure a... more BACKGROUND Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. METHODS We performed an open observational study in a mix of medical-surgical-burns critically ill patients (N.=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem) derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. RESULTS MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA -2.3±12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex -MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high system...

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica

Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally noninvasive blood pressure and cardiac o... more Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally noninvasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. We performed an open observational study in a mix of medical-surgical-burns critically ill patients (n=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem). derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA 2.3 ± 12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high systemic vascular resistance, low ...

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica, 2014

Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac ... more Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. We performed an open observational study in a mix of medical-surgical-burns critically ill patients (N.=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem) derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA -2.3±12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex -MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high systemic vascular resistance, low...

Research paper thumbnail of Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Critical Care, 2012

Research paper thumbnail of Validation of non-invasive hemodynamic monitoring with Nexfin in critically ill patients

Research paper thumbnail of Interim results of an ongoing study on the use of non-invasive hemodynamic monitoring with Nexfin in critically ill patients

Research paper thumbnail of Validation of non-invasive hemodynamic monitoring with Nexfin in critically ill patients

Research paper thumbnail of Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Research paper thumbnail of The respiratory abdominal variation test (RAVT): a noninvasive way to estimate abdominal wall compliance (Cab)

The respiratory abdominal variation test (RAVT): a noninvasive way to estimate abdominal wall compliance (Cab)

Fluids, 2012

Research paper thumbnail of Effect of enteral nutrition speed on intrafastric pressure measurement

Effect of enteral nutrition speed on intrafastric pressure measurement

American Surgeon, 2011

Research paper thumbnail of Impact of body anthropomorphic parameters on baseline intra-abdominal pressure measurements in critically ill patients

Impact of body anthropomorphic parameters on baseline intra-abdominal pressure measurements in critically ill patients

Fluids, 2012

Research paper thumbnail of Body antropomorphic data in relation to intra-abdominal pressure

Body antropomorphic data in relation to intra-abdominal pressure

American Surgeon, 2011

Research paper thumbnail of Nexfin® non-invasive continuous hemodynamic monitoring: validation against continuous pulse contour and intermittent transpulmonary thermodilution derived cardiac output in critically ill patients

Fluids, 2012

Introduction. Nexfin (Bmeye, Amsterdam, Netherlands) is a noninvasive cardiac output (CO) monitor... more Introduction. Nexfin (Bmeye, Amsterdam, Netherlands) is a noninvasive cardiac output (CO) monitor based on finger arterial pulse contour analysis. The aim of this study was to validate Nexfin CO (NexCO) against thermodilution (TDCO) and pulse contour CO (CCO) by PiCCO (Pulsion Medical Systems, Munich, Germany). Patients and Methods. In a mix of critically ill patients (= 45), NexCO and CCO were measured continuously and recorded at 2-hour intervals during the 8-hour study period. TDCO was measured at 0-4-8 hrs. Results. NexCO showed a moderate to good (significant) correlation with TDCO (2 0.68, < 0.001) and CCO (2 0.71, < 0.001). Bland and Altman analysis comparing NexCO with TDCO revealed a bias (± limits of agreement, LA) of 0.4 ± 2.32 L/min (with 36% error) while analysis comparing NexCO with CCO showed a bias (±LA) of 0.2 ± 2.32 L/min (37% error). NexCO is able to follow changes in TDCO and CCO during the same time interval (level of concordance 89.3% and 81%). Finally, polar plot analysis showed that trending capabilities were acceptable when changes in NexCO (ΔNexCO) were compared to ΔTDCO and ΔCCO (resp., 89% and 88.9% of changes were within the level of 10% limits of agreement). Conclusion. we found a moderate to good correlation between CO measurements obtained with Nexfin and PiCCO.

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica, 2014

BACKGROUND Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure a... more BACKGROUND Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. METHODS We performed an open observational study in a mix of medical-surgical-burns critically ill patients (N.=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem) derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. RESULTS MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA -2.3±12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex -MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high system...

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica

Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally noninvasive blood pressure and cardiac o... more Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally noninvasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. We performed an open observational study in a mix of medical-surgical-burns critically ill patients (n=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem). derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA 2.3 ± 12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high systemic vascular resistance, low ...

Research paper thumbnail of Validation study of Nexfin® continuous non-invasive blood pressure monitoring in critically ill adult patients

Minerva anestesiologica, 2014

Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac ... more Nexfin® (BMEYE, Amsterdam, The Netherlands) is a totally non-invasive blood pressure and cardiac output (CO) monitor based on finger arterial pulse contour analysis. We performed an open observational study in a mix of medical-surgical-burns critically ill patients (N.=45) to validate Nexfin obtained blood pressures (MAPnex) against PiCCO (MAPfem) derived blood pressure measurements. MAPnex, MAPfem and corresponding systolic (SBP) and diastolic (DBP) blood pressures were measured continuously and registered with a 2 hour interval during the 8-hour study period. Statistical analysis was performed by Pearson regression, Bland and Altman, Concordance plot and Polar plot analysis. MAPnex shows excellent correlation with MAPfem (R² 0.88, mean bias ± LA -2.3±12.4 mmHg, 14.7% error) and may be used interchangeably with invasive monitoring. The excellent MAPnex -MAPfem correlation was preserved in subgroup analysis for patients with severe hypotension, high systemic vascular resistance, low...

Research paper thumbnail of Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Validation of less-invasive hemodynamic monitoring with Pulsioflex in critically ill patients

Critical Care, 2012

Research paper thumbnail of Validation of non-invasive hemodynamic monitoring with Nexfin in critically ill patients