Table 1.
Variables used for DDF classification and grading grouped by different interpretations of the EACVI/ASE 2009 classification algorithm (n = 60)
| Variable | All (n = 60) | Algorithm interpretation specified (n = 47) |
Algorithm interpretation not specified (n = 13) | ||
|---|---|---|---|---|---|
| Classification and grading of DDF by a one-level classification tree (n = 13)S1–S13 | Classification and grading of DDF by a two-level classification tree (n = 18)S14–S31 | Classification of DDF only, no grading (n = 16)S32–S47 | Classification and grading of DDF by unspecified algorithm (n = 13)S48–S60 | ||
| E/A | 44 (73%) | 13 (100%) | 16 (89%) | 3 (19%) | 12 (92%) |
| Deceleration time | 37 (62%) | 9 (69%) | 14 (78%) | 2 (13%) | 12 (92%) |
| IVRT | 7 (12%) | 3 (23%) | 1 (6%) | 1 (6%) | 2 (15%) |
| Any E′ | 28 (47%) | 1 (8%) | 16 (89%) | 3 (19%) | 8 (62%) |
| E′sep | 15 (25%) | 0 (0%) | 11 (61%) | 1 (6%) | 3 (23%) |
| E′lat | 14 (23%) | 1 (8%) | 7 (39%) | 2 (13%) | 4 (31%) |
| E′avg | 6 (10%) | 0 (0%) | 2 (11%) | 1 (6%) | 3 (23%) |
| E′ (location not specified) | 2 (3%) | 0 (0%) | 2 (11%) | 0 (0%) | 0 (0%) |
| Any E/E′ | 40 (67%) | 7 (54%) | 12 (67%) | 12 (75%) | 9 (69%) |
| E/E′sep | 5 (8%) | 1 (8%) | 1 (6%) | 2 (13%) | 1 (8%) |
| E/E′lat | 10 (17%) | 5 (38%) | 2 (11%) | 1 (6%) | 2 (15%) |
| E/E′avg | 21 (35%) | 0 (0%) | 6 (33%) | 10 (63%) | 5 (38%) |
| E/E′ (location not specified) | 5 (8%) | 1 (8%) | 3 (17%) | 0 (0%) | 1 (8%) |
| Pulmonary flow indices | 8 (13%) | 6 (46%) | 0 (0%) | 0 (0%) | 2 (15%) |
| Left atrial size | 19 (32%) | 1 (8%) | 7 (39%) | 6 (38%) | 5 (38%) |
| LAVi | 16 (27%) | 1 (8%) | 6 (33%) | 6 (38%) | 3 (23%) |
| LAD or LAA | 3 (5%) | 0 (0%) | 1 (6%) | 0 (0%) | 2 (15%) |
| Valsalva reversal of E/A | 3 (5%) | 2 (15%) | 0 (0%) | 0 (0%) | 1 (8%) |
DDF, diastolic dysfunction; E, early diastolic inflow velocity; A, late diastolic inflow velocity; E′, early diastolic myocardial tissue velocity; E′sep, E′ of the septal wall; E′lat, E′ of the lateral wall; E′avg, averaged E′; LAVi, left atrial volume index; LAD, left atrial diameter; LAA, left atrial area.