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Critical Care

, 12:P94 | Cite as

Prediction of fluid responsiveness by FloTrac™ and PiCCOplus™ in cardiac surgery patients

  • C Hofer
  • A Senn
  • A Zollinger
Poster presentation

Keywords

Stroke Volume Lower Threshold Body Position Ethic Committee Approval Fluid Responsiveness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Introduction

The aim of this study was to compare the prediction of fluid responsiveness [1] using the stroke volume variation (SVV) determined by FloTrac™ (SVV-FloTrac; Edwards Lifesciences, USA) and PiCCOplus™ (SVV-PiCCO; Pulsion Medical Systems, Germany).

Methods

With ethics committee approval, the SVV-FloTrac, SVV-PiCCO, pulse pressure variation (PPV), global end-diastolic volume (GEDV) and stroke volume (SV) were measured before and after a volume shift induced by body positioning (30° head-up to 30° head-down) in 40 patients after cardiac surgery. A t test, Bland–Altman analysis, Pearson correlation and area under the receiver operating curves (AUC) were calculated. P < 0.05 was considered significant.

Results

Body positioning resulted in a significant SV and GEDV increase, while SVV-FloTrac, SVV-PiCCO and PPV significantly decreased. Comparably strong correlations between SVV-FloTrac/SVV-PiCCO and ΔSV were observed (Table 1). The best AUC was found for SVV-FloTrac (threshold value: 12.1%) and SVV-PiCCO (threshold value: 9.6%). Mean bias ± 2 SD (SVV-FloTrac – SVV-PiCCO) was -2.5 ± 6.2%, and the correlation coefficient (r2) was 0.72 (P < 0.01).
Table 1

AUC predicting ΔSV > 25% and Pearson correlation of baseline indices versus ΔSV

 

AUC

P value

r2 value

P value

SVV-FloTrac

0.824

0.001

0.426

<0.001

SVV-PiCCO

0.858

<0.001

0.492

<0.001

PPV

0.718

0.011

0.334

<0.001

GEDV

0.509

0.924

0.091

0.580

Conclusion

SVV-FloTrac and SVV-PiCCO showed a comparable performance in predicting fluid responsiveness. When compared with SVV-PiCCO, a lower threshold value for SVV-FloTrac has to be considered.

References

  1. 1.
    Hofer CK, et al.: Chest. 2005, 128: 848-854. 10.1378/chest.128.2.848PubMedCrossRefGoogle Scholar

Copyright information

© BioMed Central Ltd 2008

This article is published under license to BioMed Central Ltd.

Authors and Affiliations

  • C Hofer
    • 1
  • A Senn
    • 1
  • A Zollinger
    • 1
  1. 1.Triemli City HospitalZurichSwitzerland

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