Comparison of Mechanical Power Calculations of Volume Control and Pressure Control Modes

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

36 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-01-01

Study Completion Date

2022-01-22

Brief Summary

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The management of ARDS, which is one of the important problems of intensive care patients, has gained popularity with the pandemic. Mechanical ventilation is an important life-saving treatment in ARDS patients. However, when not used correctly, it can cause Ventilator-Induced Lung Injury (VILI). Therefore, lung protective ventilation should be applied to minimize VILI in ARDS patients. Mechanical power is one of the parameters that guides intensivist in predicting VILI.

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Detailed Description

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The goal of mechanical ventilation in ARDS patients is to improve oxygenation by reducing the work of breathing . With this aim, the orientation towards sensitive ventilation strategies has increased in the light of experience and scientific data from the past to the present. Today, the concept of Mechanical Power (MP) has been developed, which combines different variables, such as tidal volume, drive pressure, gas flow, respiratory rate, and PEEP, which have been associated with VILI in various studies, into a single parameter. In this study, the investigators used the simplified MP equation (MPvcv (simpl)) developed by Gattinoni et al. for power calculation in volume control mode and the simplified MP equation (MPpcv(simpl)) developed by Becher et al. for power calculation in pressure control mode. Thus, the investigators aimed to compare the volume control and pressure control modes over the concept of MP.

Conditions

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Ventilator-Induced Lung Injury

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Pressure control mode group

On the 2nd day of intensive care hospitalization, while under deep sedation and in the controlled mode (VCV or PRVC) and in the supine position, the ventilator in the VCV mode was switched to PRVC mode for 60 minutes without changing any of the set ventilator settings (RR, PEEP, TV, I:E ratio).

Changing mechanical ventilation mode

Intervention Type DEVICE

On the 2nd day of intensive care hospitalization, while under deep sedation and in the controlled mode (VCV or PRVC) and in the supine position, the ventilator in the VCV mode was switched to PRVC mode for 60 minutes without changing any of the set ventilator settings (RR, PEEP, TV, I:E ratio). Likewise, if it is in PRVC mode, it is also switched to VCV mode for 60 minutes. MP values were calculated from the minute respiratory parameters of all patients with the MP formulas defined in the software.

Volume control mode group

Likewise, if it is in PRVC mode, it is also switched to VCV mode for 60 minutes. In this way, two dependent groups were formed.

Changing mechanical ventilation mode

Intervention Type DEVICE

On the 2nd day of intensive care hospitalization, while under deep sedation and in the controlled mode (VCV or PRVC) and in the supine position, the ventilator in the VCV mode was switched to PRVC mode for 60 minutes without changing any of the set ventilator settings (RR, PEEP, TV, I:E ratio). Likewise, if it is in PRVC mode, it is also switched to VCV mode for 60 minutes. MP values were calculated from the minute respiratory parameters of all patients with the MP formulas defined in the software.

Interventions

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Changing mechanical ventilation mode

On the 2nd day of intensive care hospitalization, while under deep sedation and in the controlled mode (VCV or PRVC) and in the supine position, the ventilator in the VCV mode was switched to PRVC mode for 60 minutes without changing any of the set ventilator settings (RR, PEEP, TV, I:E ratio). Likewise, if it is in PRVC mode, it is also switched to VCV mode for 60 minutes. MP values were calculated from the minute respiratory parameters of all patients with the MP formulas defined in the software.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients with confirmed Covid-19 diagnosis in intensive care unit (ICU) and diagnosed with ARDS according to Berlin criteria
* Intubated patients which treated in the supine position on the second day of ICU admission

Exclusion Criteria

* Patients with a known diagnosis of COPD
* Patients experiencing hemodynamic instability during ventilation
* Prone pozisyonda olan hastalar
* Patients receiving inotropic support
* Patients with missing data

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No