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The purpose of this study is to determine if lower extremity elevation (LEE) will reduce the incidence of postinduction hypotension, to compare the utilization of vasoactive medications after induction in patients with LEE and patients without LEE and to determine if LEE will increase measured cardiac output
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1: LEE | Experimental |
| |
| Group 2: no LEE | No Intervention |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Group 1: LEE | Procedure | Patients will be in supine position during induction with a 12" wedge placed at the level of the Achilles tendon (LEE) |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of participants that demonstrate hypotension | Hypotension is defined as the reduction in mean arterial pressure by 20% or greater comparing the blood pressure measured before induction of anesthesia | From start of anesthesia upto institution of positive pressure ventilation (about 5 minutes) |
| Measure | Description | Time Frame |
|---|---|---|
| Number of participants that demonstrate Nadir blood pressure | Nadir blood pressure is the lowest value of blood pressure (BP) that can occur | From start of anesthesia upto institution of positive pressure ventilation (about 5 minutes) |
| Change in heart rate |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ranganathan Govindaraj, MD | The University of Texas Health Science Center, Houston | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The University of Texas Health Science Center at Houston | Houston | Texas | 77030 | United States |
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| ID | Term |
|---|---|
| D007022 | Hypotension |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
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| From start of anesthesia upto institution of positive pressure ventilation (about 5 minutes) |
| Number of participants that need rescue vasoactive agents | From start of anesthesia upto institution of positive pressure ventilation (about 5 minutes) |
| Accumulated dose of rescue vasoactive agents | End of study (within 15 minutes of baseline) |
| Change in non-invasive cardiac output | From start of anesthesia upto institution of positive pressure ventilation (about 5 minutes) |