Stéphane BAR, DR

CONTACT

Lead Sponsor

Centre Hospitalier Universitaire, Amiens

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Age\> 18 years old
•Abdominal, orthopaedic or vascular surgery with general anaesthesia
•Patient of legal age ≥ 18 years.
•ASA score ≥ II
•Estimated duration of surgery \> 2 hours
•At least two of the following comorbidities (age \> 50 years, hypertension, heart disease, electrocardiogram (ECG) abnormality, acute pulmonary oedema, smoking, stroke, peripheral arterial disease, non-insulin dependent or insulin dependent diabetes, ascites, chronic renal failure)
•Signed consent.
•Affiliation to a social security scheme.

•Severe untreated or unbalanced hypertension on treatment.
•Preoperative renal failure on dialysis.
•Acute heart failure.
•Acute coronary insufficiency.
•Vascular surgery with renal plasty.
•Cardiac surgery.
•Preoperative shock.
•Refusal of patient participation.
•Pregnant, parturient or breastfeeding woman.
•Patient under guardianship or private law.
•Acute respiratory distress syndrome according to the Berlin definition
•respiratory distress not fully explained by cardiac failure or increased blood volume,
•PaO2/FiO2 ratio ≤ 300 mm Hg on mechanical ventilation (invasive or non-invasive)
•Chronic respiratory failure with home oxygen therapy.
•Chronic interstitial lung disease
•Presence of an acoustic barrier (pneumothorax, subcutaneous emphysema, pleural calcifications, chest bandage, gunshot shrapnel...)
•Participation in other interventional drug research.
•Surgical fields covering the sites of investigation in lung ultrasound.

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