Study of the Relationship Between the Oxygenation State and Lung Ultrasound Score in Cardiac Surgery (PaFiKinESAP)

Central Hospital, Nancy, France

Status

Enrolling

Conditions

Heart Surgery

Treatments

Biological: blood gas via arterial catheter

Study type

Interventional

Funder types

Other

Identifiers

NCT05470686

2022-A01478-35

Details and patient eligibility

About

After conventional cardiac surgery, many respiratory complications are possible. Therefore, the resuscitator prescribe physiotherapy and non invasive ventilation. The physiotherapist has few reliable tools to evaluate and follow the patient on his ventilatory function. Currently, lung ultrasound is little used in physiotherapy and no study explains the link between the lung ultrasound results and oxygenation patient state. Before considering the interest of lung ultrasound score as a criterion of effectiveness of a physiotherapy treatment through future studies, it is first important to objectivize the existence of a relationship between lung ultrasound score and the PaO2/FiO2 ratio after cardiac surgery. Lung ultrasound could provide direct clinical information without having to resort to other more invasive examinations to objectify the improvement of the patient's oxygenation.

Main objective To show that the relative change in the PaO2/FiO2 ratio correlates with the change in lung ultrasound score measured in the short term between the beginning and the end of the first physiotherapy session associated with non invasive ventilation the day after surgery in cardiac patients

Secondary objectives

To study the inter-operator (2 readers) reproducibility of the lung ultrasound score measurement.
To study the relationship between the relative variation of the PaO2/FiO2 ratio and the variation of each of the 12 zones of the lung ultrasound score
To Study the relationship between the initial lung ultrasound score and the relative variation of the PaO2/FiO2 ratio
To study the relative variation of the PaCO2 and the variation of the lung ultrasound score between the beginning and the end of the first session of physiotherapy management associated with NIV
To obtain from the patient in the short term feedback on his or her understanding of the explanations about lung ultrasound score provided by the physiotherapist during the session

Enrollment

80 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Person having received complete information on the organization of the research and having given written consent to participate
Person having benefited from a heart surgery under cardio-pulmonary bypass
Medical prescriptions for non invasive ventilation and physiotherapist
Age ≥ 18 years
18.5 ≤ BMI ≤ 35 kg/m2
Visual Analogy Scale pain < 4
Patient conscious and oriented: Glasgow 15/15

Exclusion criteria

At the patient's request : a patient may withdraw from the research at any time without affecting the quality of care to which he or she is entitled (withdrawal of consent).
Cardiorespiratory arrest during the inclusion visit.
Need for orotracheal reintubation during the inclusion visit.
Patient non-cooperation during the inclusion visit.
Failure of the ultrasound machine during the inclusion visit.
Failure of the blood gas analyzer.
Glasgow < 15 during the inclusion visit
PEEP > 6 cmH2O required during physiotherapy + non invasive ventilation session
PEEP < 6 cmH2O required during physiotherapy + non invasive ventilation session
Premature interruption of the physiotherapy session + non invasive ventilation not hemodynamically tolerated
Need for a session of non invasive ventilation + physiotherapy > 30 minutes.