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Pleth variability index versus pulse pressure variation for intraoperative goal-directed fluid therapy in patients undergoing low-to-moderate risk abdominal surgery: a randomized controlled trial.

Abstract：

BACKGROUND:Goal-directed fluid therapy (GDFT) based on dynamic indicators of fluid responsiveness has been shown to decrease postoperative complications and hospital length of stay (LOS) in patients undergoing major abdominal surgery. The usefulness of this approach still needs to be clarified in low-to-moderate risk abdominal surgery. Both pulse-pressure variation (PPV) and pleth variability index (PVI) can be used to guide GDFT strategies. The objective of this prospective randomized controlled trial was to determine if the use of PVI guided GDFT, when compared to PPV guided GDFT, would lead to similar hospital LOS in patients undergoing low-to-moderate risk surgery. Secondary outcomes included amount of fluid administered and incidence of postoperative complications. METHODS:Patients were randomized into either PVI or PPV guided GDFT groups. Both received a baseline 2 ml kg- 1 h- 1 Lactated Ringer infusion. Additional fluid boluses consisted of 250 mL of colloid that was infused over a 10 min period if PVI was > 15% or PPV was > 13% for at least five minutes. The primary outcome was to determine if hospital LOS, which was defined as the number of days from surgery up to the day the surgeon authorized hospital discharge, was equivalent between the two groups. RESULTS:A total of 76 patients were included and they were randomized into two groups of 38 patients. Baseline characteristics were similar in both groups. Both PVI and PPV guided GDFT strategies were equivalent for the primary outcome of LOS (median [interquartile range]) (days) 2.5 [2.0-3.3] vs. 3.0 [2.0-5.0], p = 0.230, respectively. Fluids infused, postoperative complications, and all other outcomes were not different between groups. CONCLUSION:In patients undergoing low-to-moderate risk abdominal surgery, PVI seems to guide GDFT similarly to PPV in regards to hospital LOS, amount of fluid, and incidence of postoperative complications. However, in low-risk patients undergoing these surgical procedures optimizing stroke volume may have limited impact on outcome. TRIAL REGISTRATION:ClinicalTrials.gov Identifier: NCT02908256 , September 2016, retrospectively registered.

journal_name

BMC Anesthesiol

journal_title

BMC anesthesiology

authors

Coeckelenbergh S,Delaporte A,Ghoundiwal D,Bidgoli J,Fils JF,Schmartz D,Van der Linden P

doi

10.1186/s12871-019-0707-9

subject

Has Abstract

pub_date

2019-03-09 00:00:00

pages

issue

issn

1471-2253

pii

10.1186/s12871-019-0707-9

journal_volume

pub_type

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Pleth variability index versus pulse pressure variation for intraoperative goal-directed fluid therapy in patients undergoing low-to-moderate risk abdominal surgery: a randomized controlled trial.