RT Journal Article SR Electronic T1 Delayed targeted atelectasis in a case of bronchoscopic lung volume reduction with endobronchial valves JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e256573 DO 10.1136/bcr-2023-256573 VO 17 IS 4 A1 Chandra, Nikitha C A1 Fernandez-Bussy, Isabel A1 Walsh, Katherine L A1 Abia-Trujillo, David YR 2024 UL http://casereports.bmj.com/content/17/4/e256573.abstract AB A woman in her late 60s with severe chronic obstructive pulmonary disease (COPD) and emphysema underwent bronchoscopic lung volume reduction (BLVR) with endobronchial valves (EBV) to address hyperinflation. The initial EBV placement has led to partial lobar atelectasis of the left lower lobe and resulted in significant improvement in the patient’s symptoms and lung function. However, valve migration occurred later due to pneumothorax unrelated to valves, leading to suboptimal clinical improvement. The patient achieved delayed full lobar atelectasis 21 months after EBV placement, which led to a significant clinical improvement. The patient decided to be delisted from the lung transplant list due to the improvement. This case highlights the importance of considering delayed atelectasis as a possible outcome of EBV placement and suggests the need for further exploration of the long-term implications and associations of this procedure.