O2 Consumption And CO2 Production After Hemodynamic Optimization In Shock

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorFondazione Policlinico Universitario Agostino Gemelli IRCCS

About this trial

The goal of this prospective observational study is to analyse change in VO2 and VCO2 measured via a dedicated ventilator after hemodynamic optimization maneuvers in adult patients admitted to the ICU with any sign of shock.

The main questions it aims to answer are:

1. Do common maneuvers for hemodynamic optimization (fluid bolus and/or vasopressor administration) have any impact on tissue perfusion in terms of oxygen consumption (VO2) and carbon dioxide production (VCO2) measured by a dedicated ventilator? 2. Are the values measured by exhaled gas comparable to those calculated by the measurement of dissolved veno-arterial gas?

Participants enrolled in the study will receive advanced hemodynamic monitoring with MostCare Up (Vygon ®) and their hemodynamic instability will be managed according to most recent guidelines and based on clinical decision of treating physicians.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Heart rate > 120 bpm

Urinary output < 0.5 ml/kg/h for at least two hours

Lactate > 2 mmol/L

Disqualifiers

Urgent need for surgery

Urgent need for veno-arterial ECMO or severe hemodynamic instability

Consistent risk of imminent death

Severe ARDS or severe respiratory failure (p/F < 100 mmHg) and/or FiO2>0.8

Trial population

Patients admitted to the ICU with signs of hemodynamic instability

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Noradrenalin

    Other intervention

    After inclusion, patients will be tested for fluid responsiveness. Pulse pressure variation (PPV) will be evaluated. In case of PPV\> 13% a fluid bolus of 500 mL of Lactated Ringer's will be administered in 10 minutes. If PPV\< 8% Norepinephrine will be administered or increased. If PPV is in the gray zone, a PLRT will be performed and if CO increases more than 10% a fluid bolus will be prescribed, otherwise norepinephrine increased.

  • Fluid bolus

    Other intervention

    After inclusion, patients will be tested for fluid responsiveness. Pulse pressure variation (PPV) will be evaluated. In case of PPV\> 13% a fluid bolus of 500 mL of Lactated Ringer's will be administered in 10 minutes. If PPV\< 8% Norepinephrine will be administered or increased. If PPV is in the gray zone, a PLRT will be performed and if CO increases more than 10% a fluid bolus will be prescribed, otherwise norepinephrine increased.

Treatment groups

No treatment groups listed

Trial outcomes

Primary outcomes

1

Change in VO2

Change in VO2, measured via a dedicated ventilator after either fluid expansion or increase in vasopressors administration.

Time frame
Two minutes after the end of fluid bolus infusion or vasopressor increase, and every 10 minutes for one hour

Secondary outcomes

1

Change in VCO2

Change in VCO2, measured via a dedicated ventilator after either fluid expansion or increase in vasopressors administration.

Time frame
Two minutes after the end of fluid bolus infusion or vasopressor increase, and every 10 minutes for one hour

Other outcomes

Sponsors and contacts

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