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finding surrogate to co to trace the effect of preload challenge would make the test more applicable without the need of advanced hemodynamic monitors,suggested that co2 gap can be used to detect FR after mini fluid challenge and fluid bolts .
use of carbon dioxide gap and arterio venous oxygen content to trace the effect of preload challenge by giving via a specific venous line , first 150 ml is infused over one minute, after stroke volume at one minute measure the remaining 350 ml is infused over 14 minutes at constant rate , the fluid challenge performed with albumin 5% , fluid responsiveness is an increase in stroke volume by 15% after infusion of 500ml albumin 5%.
Objectives is to investigate the ability of VA-co2 gap and gap/ ratio to predict the hemodynamic response to mini fluid challenge, and to compare the validity of VA-co2 gap and gap/ratio with svo2 for prediction of fluid responsiveness.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| CO2 gap | Experimental | The patients will receive fluid bolus and observe changes in co2 gap and gap/ ratio in them. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Fluid challenge | Diagnostic Test | Fluid challenge and measure change in co2 gap |
|
| Measure | Description | Time Frame |
|---|---|---|
| co2gap | Difference between arterial and venous co2 gap | 30 minuets after fluid bolus |
| Measure | Description | Time Frame |
|---|---|---|
| Stroke volume | Stroke volume assessed by cardiometry | Baseline 30 minutes after Icu admission, 1 minutes after mini fluid challenge , 30 minutes after fluid bolus |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Ahmed m Mukhtar, Professor | Contact | +0220111420844 | Ahmed.mukhtar@kasralainy.edu.eg | |
| Hassan kh Nagi, Professor | Contact | 01223634792 | hknagi@hotmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Ahmed m Mukhtar, professor | kasrelainy medical school,cairo university,cairo,egypt | Principal Investigator |
| Hassan kh Nagi, professor | kasrelainy medical school,cairo university,cairo,egypt | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Cairo University Medical School | Recruiting | Cairo | 11511 | Egypt |
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Fluid challenge with assessment of change of co2 gap
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| Kasralainy hospital | Recruiting | Cairo | 11562 | Egypt |
|