OBJECTIVE: 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 @entity891 due to selective intubation. DESIGN AND SETTING: Prospective study in the medical intensive care unit of a university-affiliated teaching hospital. @entity1 : Consecutive @entity1 with no history of @entity1576 and needing intubation were enrolled. Fifteen @entity1 with selective intubation of the right lung were compared with 30 @entity1 with nonselective intubation and 15 healthy volunteers. INTERVENTIONS: The "lung pulse" was sought at the left anterolateral chest wall in intubated @entity1 . Healthy subjects were studied during breathing and @entity386 . RESULTS: A left "lung pulse" was immediately present in 14 of 15 @entity1 with right selective intubation, and absent, with normal lung sliding, in all 30 correctly intubated @entity1 and in all 15 healthy subjects during breathing. All healthy subjects exhibited a "lung pulse" in @entity386 . The "lung pulse" had a sensitivity of 93% and a specificity of 100% for the diagnosis of @entity891 following selective intubation in @entity1 without previous @entity1576 . CONCLUSIONS: The "lung pulse" is a sign of @entity891 which is observable immediately before radiological changes. Its absence which is correlated with the absence of selective intubation and of conserved lung inflation can eliminate the need for confirmation radiography.

The "lung pulse": an early ultrasound sign of XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity891 :: ('MESH:D001261', 'Disease') :: ['complete atelectasis'] @entity1576 :: ('MESH:D012131', 'Disease') :: ['respiratory disorders'] @entity386 :: ('MESH:D001049', 'Disease') :: ['apnea']
@entity891 :: (MESH:D001261,Disease) :: ['complete atelectasis']
