Photoplethysmographic (PPG) signals recorded from the human oesophagus
Moye, A. R., Kyriacou, P. A., Gregg, A. , Jones, D. P. & Langford, R. M. (1999). Photoplethysmographic (PPG) signals recorded from the human oesophagus. British Journal of Anaesthesia, A-57,
Abstract
Background and Goal of study: Although a major advance in clinical monitoring, pulse oximetry may fail when peripheral perfusion is poor (1). Measurement of arterial oxygen saturation (SpO2) at the cricopharyngeus has been attempted in anaesthetised patients, but readings varied with the orientation of the probe (2), and suffered from signal failure (3). We have recorded PPG signals from the lower oesophagus to determine optimal recording depth and signal quality
| Publication Type: | Article |
|---|---|
| Subjects: | R Medicine > R Medicine (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Departments: | School of Science & Technology > Engineering |
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