Valve migration discovered from a clinical literature search taken from: https://www.Atsjournals.Org/doi/abs/10.1164/ajrccm-conference.2021.203.1_meetingabstracts.A2193 riggle et al, bilateral endobronchial valves: an option for severe bilateral persistent air leak; american journal of respiratory and critical care medicine 2021;203:a2193.The article discusses the off label use of aspiration endobronchial valves to treat persistent bronchopleural fistulas (bpf) in an unstable patient.Large bilateral pals with residual pneumothoraxes did not resolve after placement of bilateral thoracostomy tubes.Venovenous ecmo was initiated due to hypercapnia and hypoxia on maximal ventilator settings.To promote pleurodesis with continued large bilateral pal, aspiration ibvs were deployed to rb 1, rb 2, rb 3, lb 1-3, and lb 4-5.Blood patch pleurodesis was also performed bilaterally.Ibvs at rb 3 and lb 4-5 were subsequently found to have migrated and were replaced.No additional information was provided regarding migration of the two valves.Patient was eventually transferred on ecmo for lung transplant evaluation due to severe irreversible pulmonary parenchymal disease.
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