"Mini Fluid Challenge Assessment: a Comparison Among Three Hemodynamic Tools"

Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorHumanitas Clinical and Research Center

About this trial

The mini fluid challenge (mini\_FC) is a functional hemodynamic test which has been used in different clinical contexts to assess fluid responsiveness.

This test is performed by rapidly injecting a small aliquot of fluid (100 ml over 1 minute), which is followed by the infusion of the residual aliquot of fluid.

Since the threshold of the mini\_FC identified by the literature is rather small (5% of stroke volume (SV) increase after the 100 ml bolus to discriminate between responder and non-responder), it is crucial that the hemodynamic tool assessing this change could be reliable. Moreover, the SV changes with inspiratory/expiratory movements and the increase after the mini\_FC should also consider the physiological fluctuations of the SV.

In the literature this test has been performed by means of tolls with different least significant change of the SV. The least significant change (LSC) represents the smallest difference between successive measurements of SV that can be considered to be a real change and not attributable to chance.

The purpose of this study is to assess the agreement among MOSTCARE system (4.5\& of SV LSC described in the literature) and the echocardiography (about 10% of SV LSC described in the literature) with the PICCO system (about 1% of SV LSC described in the literature - considered the gold standard) in discriminating fluid responsiveness after a mini\_FC

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

SAP ≤ 90 mmHg (or a decrease > 50 mm Hg in hypertensive patients)

or a mean arterial pressure (MAP) ≤ 70 mmHg

or the use of vasopressors to maintain SAP >90 mmHg,

associated with skin mottling; tachycardia ≥100 beats/min; urinary flow ≤0.5 mL/kg for at least 2 hours; blood lactate level ≥4 mmol/L.

Disqualifiers

known severe myocardial or valvular dysfunction

cardiac arrhythmias

severe acute respiratory distress syndrome

on-going haemodialysis or continuous hemofiltration

Trial population

Adults critically ill patients with acute circulatory failure, who require volume expansion decided by the clinician in charge.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • mini_FC

    Diagnostic test

    100 ml of Crystalloids infused over 1 minute - data recording and new baseline - FC 4 ml/kg in 10 minutes - data recording

Treatment groups

45 Participants
are divided into 1 treatment group
Group A: Intervention _mini_FC1 intervention

Trial outcomes

Primary outcomes

1

Agreement of allocation

Number of responders and non-responders identified by the MOSTCARE and the Echocardiography with respect to the PICCO system (considered as gold standard)

Time frame
immediately after the procedure

Secondary outcomes

1

Least significant change of the stroke volume - PICCO

off-line analysis of the recorded stroke volume change before the test

Time frame
5 minutes before FC administration
2

Least significant change of the stroke volume - MOSTCARE

off-line analysis of the recorded stroke volume change before the test

Time frame
5 minutes before FC administration
3

Least significant change of the stroke volume - Echocardiography

off-line analysis of the recorded stroke volume change before the test

Time frame
5 minutes before FC administration
4

ROC curve - PICCO

ROC curve analysis of stroke volume changes after mini fluid challenge infusion

Time frame
1 minute after mini fluid challenge infusion

Other outcomes

Sponsors and contacts

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