TABLE 4.
Comparison of Postoperative Manometric Characteristics by Device Size
| Device size | ||||||
|---|---|---|---|---|---|---|
| Variables, median (IQR) | 13 (N=58) |
14 (N=90) |
15 (N=66) |
16 (N=28) |
17 (N=13) |
P |
| LES total length (cm) | 2.9 (2–4) | 3.0 (3–4) | 2.9 (2–4) | 3.2 (3–4) | 2.3 (2–3) | 0.150 |
| LES intra-abdominal length (cm) | 1.6 (1–3) | 1.8 (1–2) | 2.1 (1–3) | 2.0 (2–3) | 0.0 (0–2) | 0.071 |
| LES resting pressure (mm Hg) | 30.6 (25–37) | 29.1 (21–37) | 26.2 (20–33) | 24.8 (19–33) | 19.8 (18–32) | 0.064 |
| Integrated relaxation pressure (mm Hg) | 16.7 (13–20) | 14.5 (11–18) | 12.4 (10–16) | 10.5 (8–14) | 9.4 (6–13) | <0.0001 |
| Distal contractile integral (mm Hg-s-cm) | 1853 (1.2–3.5k) | 2644 (1.1–4.0k) | 1925 (1.1–2.9k) | 1649 (1.2–2.9k) | 915.3 (0.7–1.6k) | 0.038 |
| Contractile amplitude (mm Hg) | 88.7 (67–139) | 95.6 (66–148) | 83.5 (66–107) | 82.9 (67–106) | 60.3 (45–88) | 0.053 |
| Percent peristaltic | 90.0 (80–100) | 100.0 (80–100) | 90.0 (80–100) | 90.5 (98–100) | 90.0 (90–100) | 0.872 |
| Incomplete bolus clearance (%) | 20.0 (10–50) | 10.0 (0–40) | 10 (0–40) | 9.5 (0–43) | 10.0 (0–10) | 0.100 |