Lung volume after single lung transplantation.

(A) The total lung volumes at 1, 2, 3, 4 and 5 years after single lung transplantation were 4495.2 ± 621.2, 4555.1 ± 724.4, 4391.7 ± 732.8, 4358.7±636.1, and 4521.8 ± 476.6 ml, respectively. There was no significant difference among the years. (B) The native lung volumes at 1, 2, 3, 4 and 5 years were 2742.3 ± 338.8, 2807.2 ± 411.7, 2733.7 ± 402.5, 2736.6 ± 419.1 and 2844.0 ± 337.0 ml, respectively. The native lung volumes showed a tendency to increase; however, they did not differ significantly among the years. (C) The transplanted lung volumes at 1, 2, 3, 4 and 5 years were 1752.9 ± 374.8, 1747.9 ± 420.3, 1658.1 ± 429.5, 1622.0 ± 326.7, and 1677.8 ± 270.7 ml, respectively. There was no significant difference among the years. (D) The ratios of the native lung volume to total lung volume (N/T ratios) at 1, 2, 3, 4 and 5 years were 61.3 ± 3.9, 61.9 ± 4.4, 62.6 ± 4.6, 62.9 ± 4.3 and 62.9 ± 4.0%, respectively. The N/T ratio showed a tendency to increase; however, they did not differ significantly among the years.