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This prospective study is designed to assess and quantify the correlation between respiratory changes in R-R interval and the respiratory changed in invasive systolic blood pressure in ventilated patients during changes in posture and peak end expiratory pressure (PEEP) and following a fluid bolus
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patient scheduled for surgery under general anesthesia |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| posture changes | Other | Following induction of general anesthesia and initiation of positive pressure ventilation, patients will be tilted 15 degrees head up for 5 minutes with positive end expiratory pressure of 8 cm H2O, and then 15 degrees head down for 5 minutes with positive end expiratory pressure of 3 cm H2O |
| Measure | Description | Time Frame |
|---|---|---|
| Statistical Correlation between respiratory variability of R-R interval and systolic blood pressure | From immediately after induction of general anesthesia and mechanical ventilation to 20 minutes later |
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Inclusion Criteria:
Exclusion Criteria:
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Study patients
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