The Experts below are selected from a list of 19395 Experts worldwide ranked by ideXlab platform
Bernd Saugel - One of the best experts on this subject based on the ideXlab platform.
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Measurement of Blood Pressure
2014Co-Authors: Bernd Saugel, Ron Dueck, Julia Y. WagnerAbstract:Blood Pressure is overwhelmingly the most commonly measured parameter for the assessment of haemodynamic stability. In clinical routine in the operating theatre and in the intensive care unit, Blood Pressure measurements are usually obtained intermittently and non-Invasively using oscillometry (upper-arm cuff method) orcontinuously and Invasively with an arterial catheter. However, both the oscillometric method and arterial catheter-derived Blood Pressure measurements have potential limitations. A basic technical understanding of these methods is crucial in order to avoid unreliable Blood Pressure measurements and consequential treatment errors. In the recent years, technologies for continuous non-Invasive Blood Pressure recording such as the volume clamp method or radial artery applanation tonometry have been developed and validated. The question in which patient groups and clinical settings these technologies should be applied to improve patient safety or outcome has not been definitively answered. In critically ill patients and high-risk surgery patients, further improvement of these technologies is needed before they can be recommended for routine clinical use.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:Purpose The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients. In 28 patients treated in a medical intensive care unit (ICU), BP values were simultaneously obtained using a femoral arterial catheter and the T-Line TL-200. All recorded data were included in the final analysis. For comparison of BP measurements, Bland–Altman analysis accounting for repeated measurements was performed (primary endpoint). A total of 76,826 pairs of BP measurements (each consisting of SAP, MAP, and DAP) were analyzed. For MAP, Bland–Altman analysis revealed a mean difference of +0.47 mmHg (95 % limits of agreement −16.53 to +17.46 mmHg). For SAP and DAP, the bias and 95 % limits of agreement were −9.01 mmHg (−37.47 to +19.45 mmHg) and +5.22 mmHg (−13.50 to +23.94 mmHg), respectively. Non-Invasive, continuous, radial BP measurement with the T-Line TL-200 is basically feasible in medical ICU patients (with a low bias for MAP compared to MAP assessed using a femoral arterial catheter). High limits of agreement (particularly of SAP and DAP) preclude the use of the device as a single source of BP information in unstable critically ill patients.
W Huber - One of the best experts on this subject based on the ideXlab platform.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:Purpose The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients. In 28 patients treated in a medical intensive care unit (ICU), BP values were simultaneously obtained using a femoral arterial catheter and the T-Line TL-200. All recorded data were included in the final analysis. For comparison of BP measurements, Bland–Altman analysis accounting for repeated measurements was performed (primary endpoint). A total of 76,826 pairs of BP measurements (each consisting of SAP, MAP, and DAP) were analyzed. For MAP, Bland–Altman analysis revealed a mean difference of +0.47 mmHg (95 % limits of agreement −16.53 to +17.46 mmHg). For SAP and DAP, the bias and 95 % limits of agreement were −9.01 mmHg (−37.47 to +19.45 mmHg) and +5.22 mmHg (−13.50 to +23.94 mmHg), respectively. Non-Invasive, continuous, radial BP measurement with the T-Line TL-200 is basically feasible in medical ICU patients (with a low bias for MAP compared to MAP assessed using a femoral arterial catheter). High limits of agreement (particularly of SAP and DAP) preclude the use of the device as a single source of BP information in unstable critically ill patients.
Agnes S Meidert - One of the best experts on this subject based on the ideXlab platform.
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oscillometric versus Invasive Blood Pressure measurement in patients with shock a prospective observational study in the emergency department
2021Co-Authors: Agnes S Meidert, Michael E Dolch, Konstanze Muhlbauer, Bernhard Zwissler, Matthias Klein, Josef Briegel, Stephan CzernerAbstract:In emergency medicine, Blood Pressure is often measured by an oscillometric device using an upper arm cuff. However, measurement accuracy of this technique in patients suffering from hypotensive shock has not been sufficiently evaluated. We designed a prospective observational study investigating the accuracy of an oscillometric device in hypotensive patients admitted to the resuscitation area of the emergency department. Patients admitted to the resuscitation area of a university hospital, who were equipped with an arterial catheter and found to be hypotensive (mean arterial Pressure (MAP) < 60 mmHg) were eligible for the study. Blood Pressure was measured simultaneously via upper arm cuff and Invasively under routine clinical conditions. After data extraction, Bland–Altman analysis, correlation coefficient and percentage error of mean and systolic Blood Pressure pairs were performed. We analysed 75 simultaneously obtained Blood Pressure measurements of 30 patients in hypotension, 11 (37%) were female, median age was 76.5 years (IQR 63–82). Oscillometric MAP was markedly higher than Invasive MAP with a mean of the differences of 13 ± 15 mmHg (oscillometric—Invasive), 95% limits of agreement − 16 to 41 mmHg, percentage error was 76%. In 64% of readings, values obtained by the upper arm cuff were not able to detect hypotension. Oscillometric Blood Pressure measurement is not able to reliably detect hypotension in emergency patients. Therefore, direct measurement of Blood Pressure should be established as soon as possible in patients suffering from shock.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:Purpose The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients. In 28 patients treated in a medical intensive care unit (ICU), BP values were simultaneously obtained using a femoral arterial catheter and the T-Line TL-200. All recorded data were included in the final analysis. For comparison of BP measurements, Bland–Altman analysis accounting for repeated measurements was performed (primary endpoint). A total of 76,826 pairs of BP measurements (each consisting of SAP, MAP, and DAP) were analyzed. For MAP, Bland–Altman analysis revealed a mean difference of +0.47 mmHg (95 % limits of agreement −16.53 to +17.46 mmHg). For SAP and DAP, the bias and 95 % limits of agreement were −9.01 mmHg (−37.47 to +19.45 mmHg) and +5.22 mmHg (−13.50 to +23.94 mmHg), respectively. Non-Invasive, continuous, radial BP measurement with the T-Line TL-200 is basically feasible in medical ICU patients (with a low bias for MAP compared to MAP assessed using a femoral arterial catheter). High limits of agreement (particularly of SAP and DAP) preclude the use of the device as a single source of BP information in unstable critically ill patients.
Florian Fassio - One of the best experts on this subject based on the ideXlab platform.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:Purpose The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients. In 28 patients treated in a medical intensive care unit (ICU), BP values were simultaneously obtained using a femoral arterial catheter and the T-Line TL-200. All recorded data were included in the final analysis. For comparison of BP measurements, Bland–Altman analysis accounting for repeated measurements was performed (primary endpoint). A total of 76,826 pairs of BP measurements (each consisting of SAP, MAP, and DAP) were analyzed. For MAP, Bland–Altman analysis revealed a mean difference of +0.47 mmHg (95 % limits of agreement −16.53 to +17.46 mmHg). For SAP and DAP, the bias and 95 % limits of agreement were −9.01 mmHg (−37.47 to +19.45 mmHg) and +5.22 mmHg (−13.50 to +23.94 mmHg), respectively. Non-Invasive, continuous, radial BP measurement with the T-Line TL-200 is basically feasible in medical ICU patients (with a low bias for MAP compared to MAP assessed using a femoral arterial catheter). High limits of agreement (particularly of SAP and DAP) preclude the use of the device as a single source of BP information in unstable critically ill patients.
Alexander Hapfelmeier - One of the best experts on this subject based on the ideXlab platform.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:Purpose The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients.
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the t line tl 200 system for continuous non Invasive Blood Pressure measurement in medical intensive care unit patients
2012Co-Authors: Bernd Saugel, Alexander Hapfelmeier, Roland M. Schmid, Agnes S Meidert, Florian Fassio, W HuberAbstract:The T-Line TL-200 (Tensys Medical, San Diego, CA, USA) is a non-Invasive arterial Blood Pressure (BP) monitoring system allowing continuous “beat-to-beat” monitoring of systolic arterial Pressure (SAP), mean arterial Pressure (MAP), and diastolic arterial Pressure (DAP). It provides a real-time BP waveform like that obtained using an arterial catheter. The aim of this study was to compare BP measurements obtained using the T-Line TL-200 with simultaneous Invasive BP measurements using a femoral arterial catheter in unselected critically ill medical patients. In 28 patients treated in a medical intensive care unit (ICU), BP values were simultaneously obtained using a femoral arterial catheter and the T-Line TL-200. All recorded data were included in the final analysis. For comparison of BP measurements, Bland–Altman analysis accounting for repeated measurements was performed (primary endpoint). A total of 76,826 pairs of BP measurements (each consisting of SAP, MAP, and DAP) were analyzed. For MAP, Bland–Altman analysis revealed a mean difference of +0.47 mmHg (95 % limits of agreement −16.53 to +17.46 mmHg). For SAP and DAP, the bias and 95 % limits of agreement were −9.01 mmHg (−37.47 to +19.45 mmHg) and +5.22 mmHg (−13.50 to +23.94 mmHg), respectively. Non-Invasive, continuous, radial BP measurement with the T-Line TL-200 is basically feasible in medical ICU patients (with a low bias for MAP compared to MAP assessed using a femoral arterial catheter). High limits of agreement (particularly of SAP and DAP) preclude the use of the device as a single source of BP information in unstable critically ill patients.
