Table 2 Estimates of DLCO, VC, TLC, RV and FEV1 in patients with primary and secondary mitral regurgitation before and after the MitraClip procedure. p values are based on Student’s t test with the exception of DLCO, for which it is based on the Wilcoxon exact test due to outlying data values
Before intervention | After intervention | Difference | p value | |
|---|---|---|---|---|
Mean DLCO (%) | 52.5 ± 16.6 | 53.1 ± 17.8 | 0.6 ± 9.7 | 0.09 |
Mean VC (ml) | 85.3 ± 21.8 | 86.2 ± 19.0 | 0.9 ± 13.9 | 0.67 |
Mean TLC (ml) | 99.2 ± 18.5 | 95.8 ± 16.2 | − 3.3 ± 12.7 | 0.10 |
Mean RV (ml) | 130.0 ± 31.9 | 119.4 ± 29.3 | − 10.3 ± 23.2 | 0.007 |
Mean FEV1 (ml) | 81.0 ± 24.5 | 80.8 ± 24.7 | − 0.3 ± 12.8 | 0.89 |