We read with a great interest the article, “Lung ultrasound associated to capnography to verify correct endotracheal tube positioning in prehospital” written by Brun et al [1]. We appreciate the authors sharing their enlightening study with us. We believe that their article will lead to many studies confirming the success of endotracheal intubation (ETI). The authors reported to determine the success of ETI in 52-year-old female patient presenting cardiorespiratory failure by ultrasound revealing bilateral pleural sliding and the method to be applicable and useful. We aim to draw attention to pleural sliding that could lead to false positivity.
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