Ear canal perfusion and the changes associated with stenoses or fluctuations in blood pressure
Conditions
Interventions
Group 1: 120 Patients undergoing cardiac surgery (replacement of the proximal aortic branch) at the University Hospital Großhadern with computer tomography angiography or doppler/duplex sonography of
Sponsors
Institut für Notfallmedizin und Medizinmanagement
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: planned cardio surgery procedure with computer tomography angiography of the supra aortal arteries
Exclusion criteria
Exclusion criteria: - Active otitis externa or diseases of the ear that prevent the sensor from being worn - Pre-existing neurological disease that prohibits a change in head position (so-called intracranial pressure patients)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulse contour analysis with pattern recognition for estimation of non-invasive blood pressure values. | — |
Secondary
| Measure | Time frame |
|---|---|
| PPG characteristics and their changes in the external auditory canal with arterial stenosis and changes in systemic blood pressure | — |
Countries
Germany
Contacts
Public ContactRoman Schniepp
Institut für Notfallmedizin und Medizinmanagement
Outcome results
None listed