Lung transplantation protocols during the COVID-19 pandemic: a single center experience

Interventional pulmonology techniques in lung transplantation

Lung transplantation is a key therapeutic option for several end-stage lung diseases. Interventional pulmonology techniques, mostly bronchoscopy, play a key role throughout the whole path of lung transplantation, from donor evaluation to diagnosis and management of post-transplant complications. We carried out a non-systematic, narrative literature review aimed at describing the main indications, contraindications, performance characteristics and safety profile of interventional pulmonology techniques in the context of lung transplantation. We highlighted the role of bronchoscopy during donor evaluation and described the debated role of surveillance bronchoscopy (with bronchoalveolar lavage and transbronchial biopsy) to detect early rejection, infections and airways complications. The conventional (transbronchial forceps biopsy) and the new techniques (i.e. cryobiopsy, biopsy molecular assessment, probe-based confocal laser endomicroscopy) can detect and grade rejection. Several endoscopic techniques (e.g. balloon dilations, stent placement, ablative techniques) are employed in the management of airways complications (ischemia and necrosis, dehiscence, stenosis and malacia). First line pleural interventions (i.e. thoracentesis, chest tube insertion, indwelling pleural catheters) may be useful in the context of early and late pleural complications occurring after lung transplantation. High quality studies are advocated to define endoscopic standard protocols and thus help improving long-term prognostic outcomes of lung transplant recipients.

Lung transplantation for coronavirus disease 2019 associated severe acute respiratory distress syndrome

PURPOSE OF REVIEW

The purpose of this review is to analyze the most recent and relevant literature involving lung transplantation for coronavirus disease 2019 (COVID-19) associated acute respiratory distress syndrome (ARDS), the pathological mechanisms of lung injury, selection criteria and outcomes.

RECENT FINDINGS

Pathological analysis of lungs after COVID-19 ARDS has shown architectural distortion similar to that observed in explanted lungs from patients undergoing lung transplantation for end-stage lung diseases such as emphysema. Short-term outcomes after lung transplantation for COVID-19 associated respiratory failure are comparable to those performed for other indications.

SUMMARY

Lung transplantation after COVID-19 ARDS is a potentially life-saving procedure for appropriately selected patients with no evidence of lung function recovery despite maximal treatment. Lung transplantation should be ideally performed in high-volume centers with expertise.