Table 5.
Number of Patient Exclusions Based on Diameter, Length, and Angle Measurements of the Aortic Arch and Supra‐Aortic Vessels
| Aortic Diameters, mm* |
Mean±SD or Median (Range) |
Exclusions, N (%) | |||
|---|---|---|---|---|---|
|
Relay Plus Double‐Branch Device (Terumo) |
TAG Thoracic Branch Endo‐Prosthesis (Gore) |
Zenith Arch Branched Device (Cook) |
Nexus Stent Graft System (Endospan/ Jotec) |
||
| Proximal LZ (zero point) (n=59) | 36.1 (25.6–74.9) | 11 (19) | – | – | – |
| Proximal LZ (zone 0+45 mm) (n=18)† | 35.4±3.8 | 0 (0) | – | – | – |
| Proximal LZ (zone 0+60 mm) (n=38)† | 42.3 (30.7–81.3) | 12 (32) | – | – | – |
| Proximal LZ (zone 0–total) (n=76) | 38.4 (26.0–81.3) | – | 10 (18) | 41 (54) | – |
| Proximal LZ (zone 0–BCA) (n=153) | 44.5±11.4 | – | – | – | 100 (65) |
| Proximal LZ (zone 1) (n=23)† | 34.2±3.7 | – | 0 (0) | – | – |
| Proximal LZ (zone 2) (n=22) | 32.7±4.1 | – | 0 (0) | – | – |
| Proximal BCA (n=76) | 17.5 (12.7–30.3) | 9 (15) | 21 (37)‡ | 8 (11) | – |
| Distal BCA+25 mm (n=57)§ | 14.1 (10.8–21.1) | 1 (2) | – | – | – |
| Distal BCA (n=153) | 18.8±4.6 | – | – | – | 67 (43) |
| Distal LCCA (n=75)|| | 7.5±1.2 | 19 (33) | 0 (0) | – | – |
| Maximal LSA (n=22) | 13.4±2.1 | – | 1 (1) | – | – |
| Aortic lengths, mm¶ | |||||
| STJ to zero point (n=76) | 96.3±22.5 | 3 (5) | 0 (0)|| | 17 (22) | – |
| Zero point to distal LCCA (n=59) | 38.1±6.2 | 10 (17) | – | – | – |
| Mid BCA to distal LCCA (n=23)‡ | 20.0±3.9 | – | 18 (78) | – | – |
| Distal BCA to distal LCCA (n=23)‡ | 12.4±3.7 | – | 20 (87) | – | – |
| Mid LCCA to distal LSA (n=22) | 28.3±4.8 | – | 3 (14) | – | – |
| Distal LCCA to distal LSA (n=22) | 23.4±4.7 | – | 3 (14) | – | – |
| BCA ostium to bifurcation (n=76) | 33.5 (14.5–62.9) | 2 (3) | 5 (9)|| | – | – |
|
LSA to first branch of LSA (n=22) STJ to BCA (n=153) |
38.7±10.1 102.6±27.4 |
– – |
3 (14) – |
– – |
– 0 (0) |
| Distal BCA LZ length (n=153) | 34.7±12.8 | – | – | – | 11 (7) |
| Branch clock positions/angles (degrees)¶ | |||||
| BCA clock position (n=76) | 3.8 (−43.3 to 19.1) | – | 1 (0) | 7 (9) | – |
| LCCA clock position (n=76) | 13.5±14.5 | – | 1 (0) | 2 (3) | – |
| LSA clock position (n=76) | 7.1±16.7 | – | – | – | – |
| BCA angle to aortic arch (n=165) | 141.0±23.3 | – | – | – | 30 (18) |
BCA indicates brachiocephalic artery; LCCA, left common carotid artery; LSA, left subclavian artery; LZ, landing zone; and STJ, sinotubular junction.
Measurements composed of 110 TAAs, 253 aortic dissections, of which 12 were chronic dissections and the rest acute, and 14 other pathological features.
A total of 56 of 59 measured; 3 patients were ineligible for either 45‐ or 60‐mm proximal length device because of insufficient BCA–zero point length.
A total of 23 of 30 measured; 7 patients were excluded from zone 1 proximal LZ length measurements because of proximity of BCA.
A total of 57 of 59 measured; 2 patients did not have sufficient BCA length to measure 25 mm distally.
A total of 75 of 76 (58/59 Relay Branch eligible) patients measured; 1 patient had a stenosis of LCCA.
A total of 57 of 76 patients were subjected to zone 0 assessment with the TAG Thoracic Branch Endoprosthesis (Gore).