Sitting Position and Blood Oxygenation in ICU Patient (FALCON)

  • STATUS
    Recruiting
  • End date
    Jul 23, 2024
  • participants needed
    258
  • sponsor
    Centre Hospitalier Régional d'Orléans
Updated on 23 July 2022

Summary

The positioning of the ICU patient is a daily concern of the medical and paramedical teams. Developments in emergency medicine and sedation and analgesia techniques have made it possible to reduce patient mortality. However, considered too unstable, patients were no longer mobilized outside the bed until the complete resolution of the symptoms that led to hospitalization or surgery.

Despite encouraging results for early mobilization, bed and rest remained the most widespread positioning technique worldwide with the emergence of intensive care units, mechanical ventilation and sedation/analgesia/curarization. The result is peripheral muscular amyotrophy and respiratory muscular amyotrophy, with increased length of stay and exacerbated morbidity/mortality several years after discharge from ICU.

Numerous studies have shown the value of early mobilization of the ICU patient to preserve functional and muscular capital.

However, few studies have evaluated the value of mobilizing the ICU patient from the bed in order to improve oxygenation. The lack of mobility outside the bed causes condensation of the pulmonary parenchyma at the bases and in the dorsal region when the patient is lying down or in a prolonged semi-seated position.

In awake spontaneously ventilated patients, whether intubated on ventilatory support (Pressure Support), non-invasive ventilation (NIV) or high flow nasal oxygen therapy (HFNO), the reference position is a semi-seated patient with the head of the resuscitation bed tilted at 30°. The problem with this position in the bed is that patients tend to slide toward the foot of the bed. This migration is due to gravity or the design of the ICU bed. The end result of this migration is that the inclination indicated by the bed head inclinometer does not correspond to the actual angulation between the patient's lower limbs and trunk. The patient finds himself "compressed" in the lower abdomen, which can lead to compression of the diaphragm and thus hypoventilation in the postero-caudal regions of the lungs.

Our hypothesis is that the chair position (outside the ICU bed) allows, without modification of the ventilatory parameters, to improve the alveolar ventilation and thus the oxygenation of the arterial blood, compared to the "natural" semi-seated position in the ICU bed, in patients with spontaneous ventilation (PS/NIV/HFNO).

Description

This is a monocentric, comparative, randomized, open-label trial comparing two methods of "seated" positioning of the ICU patient, chair versus natural position in bed, on arterial blood oxygenation

  1. Sitting in a Chair position For patients randomized in the chair group, we will perform the transfer to the chair immediately after the morning arterial blood gas. The chair position will be maintained for 3 hours, if the patient shows no clinical signs of discomfort or intolerance.
  2. Semi-recumbent position in bed The patient will benefit from conventional positioning techniques in the ICU bed. With the help of the medical monitoring software present in the wards, we will note the different nursing care given to the patient during the 3 hours following the morning arterial gasometry.

Details
Condition ICU Patient
Treatment Sitting in chair position
Clinical Study IdentifierNCT04446559
SponsorCentre Hospitalier Régional d'Orléans
Last Modified on23 July 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Patient ≥ 18 years old in intensive care unit (ICU) or surgical intensive care unit (SICU)
Intubated and under mechanical invasive ventilation for at least 24 hours or under non-invasive ventilation for more than 12 hours a day or under continuous high-flow nasal oxygen therapy for more than 24 hours or alternating NIV/HFNO
Patient or next of kin who has expressed consent to participate in the study

Exclusion Criteria

Tracheotomized patient
Patient with a contraindication to sitting in a chair
Deep vein thrombosis not effectively anticoagulated
Fracture or orthopaedic disorder contra indicating mobilization
Lung Embolism
Hemodynamic instability with Average Arterial Pressure < 65 mmHg or a vasopressor amine dose greater than 0.5 ug/kg/min
Pregnant or breastfeeding woman
Therapeutic limitation with decision of non-reintubation in case of extubation failure
Non-affiliated or non-beneficiary patient of a social security scheme
Person deprived of liberty by judicial or administrative decision
Person under guardianship or curators
Patient already included in the study
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