FIGURE 1.
Diameter and volume changes in patients with (n = 27) and without (n = 76) later intervention for type II endoleak
| Diameter / volume changes between 3 months and 1 year of follow-up | |||
|---|---|---|---|
| no intervention | intervention | P-value | |
| Ax diameter absolute change (mm) | −0.22 (min −9.0; max 6.0) | −0.48 (min −20.0; max 5.0) | 0.37 |
| Ax diameter relative change (%) | −0.43 (min −14.3; max 8.7) | −0.74 (min −30.8; max 7.8) | 0.37 |
| Per diameter absolute change (mm) | 0.05 (min −10.0; max 7.0) | −0.85 (min −20.0; max 5.0) | 0.91 |
| Per diameter relative change (%) | 0.15 (min −15.6; max 10.4) | −1.3 (min −30.8; max 8.2) | 0.79 |
| Volume absolute change (cm3) | −2.22 (min −67.0; max 55.0) | −10.89 (min −169.0; max 33.0) | 0.96 |
| Volume relative change (%) | −1.4 (min −28.6; max 14.2) | −2.2 (min −10.3; max 7.4) | 0.92 |
Agreement between axial (Ax)/perperdicular (Per) sac diameter and sac volume
| Diameter | statistic volume change < 12% | volume change > 12% |
|---|---|---|
| Ax diameter | ||
| < 5 mm change | n/N (%) 93/95 (97.9%) | 8/8 (100%) |
| > 5 mm change | n/N (%) 2/95 (2.1%) | 0/8 (0%) |
| Per diameter | ||
| < 5 mm change | n/N (%) 92/95 (96.8%) | 7/8 (87.5%) |
| > 5 mm change | n/N (%) 3/95 (3.2%) | 1/8 (12.5%) |
Patients’ and procedural characteristics
| Clinical characteristic | |
|---|---|
| Age (years) | |
| Mean age | 74 (min 58; max 92) |
| Sex | |
| Female | n = 5 (5%) |
| Male | n = 98 (95%) |
| Risk factors for atherosclerotic aortic disease according to Doyle et al.11 | |
| ASA-classification | |
| ASA 1 | n = 4 (3.8%) |
| ASA 2 | n = 18 (17.3%) |
| ASA 3 | n = 75 (72.1%) |
| ASA 4 | n = 6 (5.7%) |
| Cardiac disease | n = 49 (47.1%) |
| Carotid disease | n = 16 (15.4%) |
| Hyperlipidemia | n = 84 (80.7%) |
| Renal insufficiency | n = 43 (41.3%) |
| Diabetes mellitus | n = 26 (25%) |
| Arterial hypertension | |
| Controlled | n = 83 (79.8%) |
| Uncontrolled | n = 8 (7.7%) |
| Pulmonary disease | n = 38 (36.5%) |
| Smoking | |
| Active | n = 9 (8.6%) |
| Previous | n = 74 (71.1%) |
| Stent-graft for EVAR | |
| Excluder | n = 41 (40%) |
| Endurant | n = 20 (19%) |
| Ovation | n = 23 (22%) |
| Zenith | n = 13 (13%) |
| Quantum | n = 4 (4%) |
| Other | n = 2 (2%) |
Correlation between axial / perpendicular diameter and volume at 3 months and 1 year
| At 3 months of follow-up | |||
|---|---|---|---|
| Association of sac volume (cm3) with | Rho | 95% CI | P-value |
| Axial diameter (mm) | 0.89 | (0.84; 0.92) | < 0.0001 |
| Perpendicular diameter (mm) | 0.90 | (0.86; 0.93) | < .0001 |
| At 1 year of follow-up | |||
| Association of sac volume (cm3) with | |||
| Axial diameter (mm) | 0.91 | (0.87; 0.93) | < 0.0001 |
| Perpendicular diameter (mm) | 0.92 | (0.89; 0.95) | < 0.0001 |
| Association of volume (absolute changes) (cm3) with | |||
| Axial diameter (mm) | 0.74 | (0.64; 0.82) | < 0.0001 |
| Perpendicular diameter (mm) | 0.57 | (0422; 0.69) | < 0.0001 |
| Association of volume (relative changes) (cm3) with | |||
| Axial diameter (mm) | 0.83 | (076; 0.89) | < 0.0001 |
| Perpendicular diameter (mm) | 0.76 | (0.66; 083) | < 0.0001 |
Diameter and volume measurements of the excluded aneurysm sac of 103 patients
| Maximum diameter / volume | |
|---|---|
| Axial diameter (mm) at 3 months | 63.7 (min 36.0; max 138.0) |
| Axial diameter (mm) at 1 year | 63.4 (min 37.0; max 133.0) |
| Perpendicular diameter (mm) at 3 months | 63.2 (min 35.0; max 141.0) |
| Perpendicular diameter (mm) at 1 year | 63.0 (min 36.0; max 142.0) |
| Volume aneurysm sac (cm3) at 3 months | 213.8 (min 67.0; max 1316.0) |
| Volume aneurysm sac (cm3) at 1 year | 209.3 (min 72.0; max 1147.0) |
| Axial diameter absolute change (mm) | −0.3 (min −20.0; max −7.0) |
| Axial diameter relative change (%) | −0.51 (min −30.8; max 8.7) |
| Perpendicular diameter absolute change (mm) | −0.2 (min −20.0; max −7.0) |
| Perpendicular diameter relative change (%) | −0.2 (min −30.8; max 10.5) |
| Volume absolute change (cm3) | −4.5 (min −169.0; max −55.0) |
| Volume relative change (%) | −1.6 (min −50.7; max 20.8) |