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This is a pilot study to investigate whether patients at advanced age are fluid responders via a reversible fluid challenge, the passive leg raise test. This will be measured with a non-invasive cardiac output monitor, the LiDCO (LiDCO Hemodynamic monitoring) .
The intervention is as simple as a passive leg raise with measurement of effect on Stroke volume.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Passive Leg Raise (PLR) | Other | The patient is placed in a 45 degree recumbent position. Stroke volume is measured in ml. Intervention:The patient is placed horizontal and the legs are passively raised to 45 degrees. Measurement:The effect of the PLR on Stroke Volume is measured. Thereafter the patient is repositioned to the initial position and Stroke Volume is measured again. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Passive leg raise | Other | By tilting the patient's bed from sitting 45 degrees to supine with legs tilted up 45 degrees we recruit the blood volume in the legs and can measure a reversible fluid challenge on stroke volume. |
| Measure | Description | Time Frame |
|---|---|---|
| Assess passive leg raise responsiveness in spontaneously breathing aged patients. | Stroke volume changes in ml and as per cent change compared to baseline | Within 1 minute of the intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Investigate whether there is an association between a positive response to passive leg raise on stroke volume and post spinal anesthesia. | Post spinal bloodpressure per cent change or 30 mmHg decrease | 30 minutes |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Sigridur Kalman, Professor | Karolinska Institutet | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Karolinska University Hospital | Huddinge | 14186 | Sweden |
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