Technology
Conditions
Brief summary
Evaluation of an novel smartphone algorithm designed to estimate blood pressure based on collected optical signals on patients against the reference method, (radial arterial catheter) in patients admitted in the post anesthesia care unit after major surgeries.
Detailed description
The purpose of the study is to compare the blood pressure values measured by a mobile application used with a smartphone and the values measured by reference method, which is the radial arterial line Patients admitted to the post-anesthesia care unit after major surgeries (Erasme hospital) Patient's arterial pressure will be measured with both measurement methods (novel smartphone application and the invasive arterial line). The placement of an arterial line is standard of care in the investigators institution for patients scheduled for major surgeries. These patients spend 24 hours in the post-anesthesia care unit after their surgery for acute care management. Patient's blood pressure will be measured in parallel (same arm) with the mobile application and with the reference equipment (radial arterial line). Measures will be done during five times ( so five times one minute of recordings). Blood pressure values obtained by the two methods will be compared to confirm the reliability of the data obtained with the mobile application.
Interventions
DEVICENovel smartphone application for blood pressure measurement
Continuous blood pressure measurements will be compared between the new application and the reference method (invasive radial arterial line) during 5 minutes of recordings.
Sponsors
Erasme University Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 99 Years
Inclusion criteria
* Adult patients in the post-anesthesia care unit after major surgery * equipped with an arterial catheters for perioperative management * Informed Consent as documented by signature * Good understanding of written and oral speaking
Exclusion criteria
* Patients that cannot sign informed consent * Patients in emergency situation, are not legally competent, cannot understand the situation * Known contact dermatitis to nickel/chromium * Dyshythmia like bigeminy, trigeminy, isolated Ventricular Premature Beats (VPB), atrial fibrillation * Lesion or deficiency on hand, preventing index obstruction of smartphone's camera
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Comparison of blood pressure measurement done with the novel smartphone application versus the reference method | Day of surgery | Comparison of values to invasive reference method (arterial line) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of necessary measure to have a good relationship between both methods | Day of surgery | Number of necessary measure to have a good relationship between both methods |
| Usability assessment | Day of surgery | Identification of possible use error in the manipulation of the device and in the performance of the measure |
Countries
Belgium
Outcome results
None listed