Double-lumen endotracheal tubes and bronchial blockers exhibit similar lung collapse physiology during lung isolation.

CONCLUSIONS: During OLV before pleural opening, entrainment of ambient air into the non-ventilated lung occurs when the lumen of the lung isolation device is kept open. This phenomenon is prevented by occluding the lumen of the isolation device before pleural opening, resulting in a progressive build-up of negative pressure in the non-ventilated lung. Future clinical studies are needed to confirm these physiologic results and their impact on lung collapse and operative outcomes. TRIAL REGISTRATION: www.clinicaltrials.gov (NCT02919267); registered 28 September 2016. PMID: 33594596 [PubMed - as supplied by publisher]
Source: Canadian Journal of Anaesthesia - Category: Anesthesiology Authors: Tags: Can J Anaesth Source Type: research