Changes in Health-Related Quality of Life During the First Year in Lung Transplant Recipients

Background: Health-related quality of life (HRQOL) has increasingly been accepted as a supplementary outcome measure for patients before and after lung transplantation (LT). This longitudinal study was conducted to recognize the tracks of HRQOL during the first year after transplantation and the main factors associated with HRQOL of LT recipients. The research was conducted in accordance with the 2000 Declaration of Helsinki and the Declaration of Istanbul 2008. The transplant organs were from volunteer donation, and next of kin provided written informed consents of their own free will. No prisoners were used, and donors were neither paid nor coerced.

Methods: A total of 118 patients were investigated before and 3, 6, 9, and 12 months post-transplantation. The Medical Outcomes SF-36 (Chinese version) was used to measure the HRQOL. The recipients' demographic characteristics and clinical data were evaluated to determine the relative contributions to HRQOL outcomes.

Results: Recipients reported a mean physical component summary of 39.62 ± 6.57, 57.90 ± 9.99, 59.15 ± 8.73, 58.79 ± 8.52, and 58.72 ± 8.99 before transplantation and at 3, 6, 9, and 12 months after LT (F = 64.960, P < .001). By 3 months after transplant, patients experienced significant improvement in physical component summary (MD = 18.27, SE = 1.52, P < .001); but between 3 and 12 months, no significant improvement was observed (MD = 0.82, SE = 1.77, P = .645). Patients reported a continuous rise with means of 44.63 ± 5.35, 51.13 ± 10.25, 51.92 ± 9.72, 53.23 ± 10.34, and 55.40 ± 8.83 for the mental component summary before LT and at 3, 6, 9, and 12 months after transplant (F = 13.059, P < .001). By 3 months after transplant, patients experienced significant improvement in mental component summary (MD = 6.50, SE = 1.50, P < .001). Between 3 and 12 months, a continuous significant improvement was observed (MD = 4.27, SE = 1.92, P = .030). The generalized estimated equation showed that age, marital status, residence, disease diagnosis, transplant type, sleep disorders, gastrointestinal complications, and BODE index (body mass index, obstruction, dyspnea, exercise) were all found to be related to HRQOL.

Conclusion: The HRQOL of LT patients improved significantly at 3 months after transplantation, but between 3 and 12 months after transplantation, the changes were not obvious. Health practitioners should pay more attention to elderly patients, unmarried patients, patients living in urban areas, patients diagnosed with pneumoconiosis, patients with left single-lung transplantation, patients with sleep disorders, patients with high BODE indexes, and patients with gastrointestinal complications.