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Prevention of arterial hypotension after spinal anaesthesia using vena cava ultrasound to guide fluid management  S. Ceruti, L. Anselmi, B. Minotti, D.

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Presentation on theme: "Prevention of arterial hypotension after spinal anaesthesia using vena cava ultrasound to guide fluid management  S. Ceruti, L. Anselmi, B. Minotti, D."— Presentation transcript:

1 Prevention of arterial hypotension after spinal anaesthesia using vena cava ultrasound to guide fluid management  S. Ceruti, L. Anselmi, B. Minotti, D. Franceschini, J. Aguirre, A. Borgeat, A. Saporito  British Journal of Anaesthesia  Volume 120, Issue 1, Pages (January 2018) DOI: /j.bja Copyright © 2017 British Journal of Anaesthesia Terms and Conditions

2 Fig 1 Enrolment flowchart (according to the CONSORT statement).
British Journal of Anaesthesia  , DOI: ( /j.bja ) Copyright © 2017 British Journal of Anaesthesia Terms and Conditions

3 Fig 2 Ultrasonography B-mode and M-mode to evaluate IVC with subcostal view; the Δ-IVC was calculated as follow: (IVCmax–IVCmin)/IVCmax; the result therefore is expressed as percentage. British Journal of Anaesthesia  , DOI: ( /j.bja ) Copyright © 2017 British Journal of Anaesthesia Terms and Conditions

4 Fig 3 Linear regression between Δ-IVC (expressed as percentage) and total fluid amount (expressed as ml). This correlation was probably explained in part by the study's design, were an increase of Δ-IVC is correlated with an administration of fluid. By contrast, there was an unexpected linear correlation between the degree of Δ-IVC and the total amount of fluid administered, suggesting a possible correlation between the amplitude of Δ-IVC and the need of fluid by the patient. British Journal of Anaesthesia  , DOI: ( /j.bja ) Copyright © 2017 British Journal of Anaesthesia Terms and Conditions

5 Fig 4 (A) Linear regression between Δ-IVC (expressed as percentage) and Δ-MAP (expressed as percentage). The absence of correlation maybe was due to a greater amount of total fluid administered after the first measure of Δ-IVC. Please note that Δ-MAP was the amount of reduction of arterial pressure (thus, the greater Δ-MAP, the greater the reduction of arterial pressure). (B) Linear regression between values of Δ-IVC, stratified according to a cut-off value of 36% and Δ-MAP (expressed as percentage). For patients with Δ-IVC inferior to 36% there was no correlation with the change in MAP value after spinal anaesthesia. For patients with Δ-IVC superior to 36% there was a slight correlation with the reduction in MAP after spinal anaesthesia (r2=–0.16). British Journal of Anaesthesia  , DOI: ( /j.bja ) Copyright © 2017 British Journal of Anaesthesia Terms and Conditions

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