Fluid Responsiveness, Non Invasive Cardiac Output Monitoring, Prone Position
Conditions
Keywords
Fluid responsiveness, NICOM, Prone Position, Stroke Volume Variation
Brief summary
NICOM® is a recently developed noninvasive cardiac output monitoring device, and indices derived from NICOM® such as SVV has been reported to predict fluid responsiveness in the previous studies. However, its usefulness in prone positioning has not been investigated. Thus, the aim of this prospective observational study is to evaluate the usefulness of stroke volume variation (SVV) derived from NICOM® to predict fluid responsiveness in prone patients undergoing spine surgery.
Interventions
loading of hydroxyethyl starch 6ml/kg over 10-15min to all patients
Sponsors
Study design
Eligibility
Inclusion criteria
* ASA I or II patients undergoing spine surgery in prone position
Exclusion criteria
* Pre-existing arrhythmic disorders/moderate to severe valvular heart disease/obstructive pulmonary disease (COPD grade \>2), left ventricular dysfunction with LV EF less than 50, preoperative need for inotropics or vasopressors * BMI \>30kg/m\^2 or \<15kg/m\^2 * Preoperative serum Cr \> 1.3mg/dL * Patients with coagulopathy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Stroke volume variation from NICOM® | 5 min after infusion of bolus fluid | predictability of stroke volume variation from NICOM® for fluid responsiveness |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| pulse pressure variation and stroke volume variation from Flotrac/Vigileo system | 5 min after infusion of bolus fluid | Correlation with pulse pressure variation, stroke volume variation from Flotrac/Vigileo system |
Other
| Measure | Time frame |
|---|---|
| TPR (total peripheral resistance), TPRI (total peripheral resistance index) | 5 min after infusion of bolus fluid |
Countries
South Korea