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Influence of Bronchoscopic Interventions on Graft Function of Double Lung Transplant Recipients due to Cystic Fibrosis.
Transplantation Proceedings 2022 April 20
BACKGROUND: Healing of bronchial anastomoses may sometimes be complicated and require bronchoscopic intervention (BI). The main aim of the study was to assess whether patients who require BI present comparable lung function after reaching 1-year posttransplant survival to those who did not require any BI by means of spirometry and 6-minute walk test (6MWT).
METHODS: This retrospective study included an analysis of 44 primary double lung transplant recipients who underwent transplant for end-stage respiratory failure in the course of cystic fibrosis transplanted in a single center between 2018 and 2021. Bronchoscopic intervention is defined as performing endoscopic bronchoplasty through balloon dilatation, cryoprobe, argon plasma, and/or laser treatment. Group 1 (25 patients who required at least 1 BI) presented similar spirometry parameters at qualification as group 2 (no BI).
RESULTS: Statistically significant differences between the groups for the following parameters were reported: forced expiratory volume in 1 second (FEV1), FEV1 (%), Tiffeneau-Pinelli index (FEV1/forced vital capacity percentage of predicted value), oxygen saturation after conclusion of 6MWT (%) and oxygen saturation before 6MWT (%). In each case, the mean for the BI group in the first year was lower. All patients in this group received an average amount of 6.8 ± 4.9 bronchoscopic procedures during the first year (minimum = 1; maximum = 18). Strong negative correlations were observed between the number of balloons in the first year and the FEV1 (%) and FEV1/forced vital capacity percentage of predicted value indicators after the first year.
CONCLUSIONS: Lung transplant recipients who underwent transplant because of cystic fibrosis and required at least 1 BI during the first posttransplant year presented inferior spirometry and 6MWT results in comparison with those who did not require any.
METHODS: This retrospective study included an analysis of 44 primary double lung transplant recipients who underwent transplant for end-stage respiratory failure in the course of cystic fibrosis transplanted in a single center between 2018 and 2021. Bronchoscopic intervention is defined as performing endoscopic bronchoplasty through balloon dilatation, cryoprobe, argon plasma, and/or laser treatment. Group 1 (25 patients who required at least 1 BI) presented similar spirometry parameters at qualification as group 2 (no BI).
RESULTS: Statistically significant differences between the groups for the following parameters were reported: forced expiratory volume in 1 second (FEV1), FEV1 (%), Tiffeneau-Pinelli index (FEV1/forced vital capacity percentage of predicted value), oxygen saturation after conclusion of 6MWT (%) and oxygen saturation before 6MWT (%). In each case, the mean for the BI group in the first year was lower. All patients in this group received an average amount of 6.8 ± 4.9 bronchoscopic procedures during the first year (minimum = 1; maximum = 18). Strong negative correlations were observed between the number of balloons in the first year and the FEV1 (%) and FEV1/forced vital capacity percentage of predicted value indicators after the first year.
CONCLUSIONS: Lung transplant recipients who underwent transplant because of cystic fibrosis and required at least 1 BI during the first posttransplant year presented inferior spirometry and 6MWT results in comparison with those who did not require any.
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