Gilbert A Mezière

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Can ultrasound be of any help in the diagnosis of alveolar-interstitial syndrome? In a prospective study, we examined 250 consecutive patients in a medical intensive care unit: 121 patients with radiologic alveolar-interstitial syndrome (disseminated to the whole lung, n = 92; localized, n = 29) and 129 patients without radiologic evidence of(More)
BACKGROUND This study assesses the potential of lung ultrasonography to diagnose acute respiratory failure. METHODS This observational study was conducted in university-affiliated teaching-hospital ICUs. We performed ultrasonography on consecutive patients admitted to the ICU with acute respiratory failure, comparing lung ultrasonography results on(More)
Alveolar consolidation is a basic concern in critically ill patients. Radiography is not a precise tool, and referral to CT raises problems (transport, irradiation). The aim of this study was to assess the utility of ultrasound in the diagnosis of alveolar consolidation. Prospective clinical study. The medical ICU of a university-affiliated teaching(More)
Objective: Acute cardiogenic pulmonary edema and exacerbation of chronic obstructive pulmonary disease (COPD) can have a similar clinical presentation, and X-ray examination does not always solve the problem of differential diagnosis. The potential of lung ultrasound to distinguish these two disorders was assessed. Design: Prospective clinical study.(More)
Objective: We studied an ultrasound sign, the fleeting appearance of a lung pattern (lung sliding or pathologic comet-tail artifacts) replacing a pneumothorax pattern (absent lung sliding plus exclusive horizontal lines) in a particular location of the chest wall. This sign was called the "lung point". Design: Prospective study. Setting: The medical ICU of(More)
OBJECTIVES Pneumothorax can be missed by bedside radiography, and computed tomography is the current alternative. We asked whether lung ultrasound could be of any help in this situation. DESIGN Retrospective study. SETTING The medical intensive care unit of a university-affiliated teaching hospital. PATIENTS All patients admitted to the intensive care(More)
Objective: Ultrasound artifacts arising from the lung–wall interface are either vertical (comet-tail artifacts) or horizontal. The significance of these artifacts for the diagnosis of pneumothorax was assessed. Design: Prospective clinical study. Setting: The medical ICU of a university-affiliated teaching hospital. Patients: We compared 41 complete(More)
Objective: Thoracentesis in a ventilated patient is rarely performed because of the risk of pneumothorax. We have evaluated the safety of this procedure when aided by ultrasound. Design: Prospective study. Setting: Medical intensive care unit, university-affiliated hospital. Patients: 45 procedures were performed in 40 consecutive patients with ultrasound(More)
Complete atelectasis can be immediately generated by selective intubation. A dynamic lung ultrasound sign can be described as the association of absent lung sliding with the perception of heart activity at the pleural line, a sign which was called “lung pulse.” We examined whether this sign be used promptly to confirm complete atelectasis due to selective(More)
BACKGROUND The risk of pulmonary edema is the main limiting factor in fluid therapy in the critically ill. Interstitial edema is a subclinical step that precedes alveolar edema. This study assesses a bedside tool for detecting interstitial edema, lung ultrasound. The A-line is a horizontal artifact indicating a normal lung surface. The B-line is a kind of(More)