Antonio ACP, et al. - In this 2-year, prospective, multicenter, observational study performed in 2 adult medical-surgical ICUs in southern Brazil, researchers intended to verify the findings of a randomized controlled trial wherein bedside thoracic ultrasound could predict postextubation distress through changes in lung aeration during a weaning procedure; however, it could not screen patients before performance of a spontaneous breathing trial (SBT). Study participants, excluding those with tracheostomy, underwent lung ultrasound immediately before SBT. Any profile with anterior bilateral B-pattern was defined as B-predominance. SBT failure was the main focus. Based on findings, they concluded that hemodynamically stable, sufficiently oxygenated patients should not be precluded from performing an SBT if B-pattern is detected by a simplified lung ultrasound protocol in such a setting.