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The purpose of this study is to determine whether analysis of near infrared absorbance signals that occur at different frequencies might provide information about the difference in oxygen saturation between arterial and venous blood.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| All | Other | All subjects will undergo spontaneous ventilation through an impedance threshold device and ScvO2 will be recorded before and after |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Use of impedance threshold device during spontaneous ventilation | Other |
|
| Measure | Description | Time Frame |
|---|---|---|
| Estimated venous oxygen saturation | Oxygen saturation will be calculated from the five minute period of time prior to use of the impedance threshold device (0-4 mins), and then again in the 2 minute period after the impedance threshold device is applied (5-6 mins) | From 5 to 6:59 minutes after applying the impedance threshold device |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Virginia | Charlottesville | Virginia | 22908 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 21613200 | Background | Thiele RH, Tucker-Schwartz JM, Lu Y, Gillies GT, Durieux ME. Transcutaneous regional venous oximetry: a feasibility study. Anesth Analg. 2011 Jun;112(6):1353-7. doi: 10.1213/ANE.0b013e3182166a26. |
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