Evaluation of SVV From NICOM as a Predictor of Fluid Responsiveness in Prone Position During Spine Surgery

Samsung Medical Center40 enrolled

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Fluid Responsiveness Prone Position Non Invasive Cardiac Output Monitoring

Interventions

Fluid loading to evaluate fluid responsivenessOTHER

Eligibility

Sex: ALLMin age: 20 YearsMax age: 80 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Stroke volume variation from NICOM®

predictability of stroke volume variation from NICOM® for fluid responsiveness

Time frame: 5 min after infusion of bolus fluid

Secondary Outcomes

pulse pressure variation and stroke volume variation from Flotrac/Vigileo system

Correlation with pulse pressure variation, stroke volume variation from Flotrac/Vigileo system