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Biosensors clinical trials

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NCT ID: NCT04585568 Completed - Hemodynamics Clinical Trials

Validation of Ballistocardiographic Biosensors and Other Hemodynamic Measures for Healthy Subjects

Start date: September 28, 2020
Phase:
Study type: Observational

Ballistocardiographic (BCG) biosensors reflecting the patients' current state is established. There are few studies documenting BCG biosensors efficacy, effectiveness, and efficiency. In addition, technologies using invasive blood pressure curves and Near Infrared Regional Spectrometry (NIRS) to measure hemodynamics have been used. Using these technologies to guide clinical decisions may be an major advance for patients with acute and chronic diseases. The investigators will explore how these technologies compares to well established technologies measuring vital signs of healthy subjects. The investigators will use live continuous and non-continuous biosensor data to monitor the development of vital parameters during different scenarios. The study will document how CPD measured by biosensors, cerebral oximetry measured by NIRS, and invasive blood pressure curves measured by FloTracâ„¢ are compared to established technologies of vital organ functionality. Data will be measured continuously and documented simultanuously with technologies such as Doppler Echocardiography, transthoracic impedance (TTI), Electrocardiogram (ECG), invasive blood pressure [cardiac output/index (CO/CI), stroke volume/stroke volume index (SV/SVI), stroke volume variation/pulse pressure variation (SVV/PPV), systemic vascular resistance/ systemic vascular resistance index (SVR/SVRI), mean arterial pressure (MAP)], pulse oximetry (SpO2) and cerebral oximetry (rSO2). Of special interest is to document how relative heart stroke volume reflects blood flow documented by the parallel technology measures. All these measures are the key part in the study to document user friendliness, accuracy, sensitivity, specificity and correlations. The main research question is whether adding BCG biosensor measures, cerebral oximetry and invasive blood pressure to monitor vital signs will add meaningful information to the care of patients in a situation where we are able to control all the factors that may impact these measures. The aim of the study is to document (correlation, sensitivity and specificity) how BCG biosensors perform compared to each other and to well established technologies used for monitoring blood flow, blood pressure, heart rate and respiration rate in steady state and during ambulance transport. In addition, the investigators will in a controlled manner measure how established maneuvers like Trendelenburg, hypo-/hyperventilation, and bolus of fluid influences our measures.

NCT ID: NCT02625285 Completed - Validation Clinical Trials

Validation of New G6PD Point of Care Tests Against Gold Standard Quantitative

Biosensors
Start date: January 24, 2017
Phase: N/A
Study type: Observational

This is a laboratory research to evaluate performances of quantitative POC G6PD tests (Biosensors) against gold standard quantitative laboratory based tests and genotyping.