Table 2.
Comparison between mucosal and submucosal changes at treatment sites
| N (# samples) | IRC | HET55 | HET50 |
|---|---|---|---|
|
|
|
|
|
| 20 | 16 | 16 | |
| Mucosa | |||
| Layer thinning | 1.70 ± 0.14 | 2.00 ± 0.18 | 0.56 ± 0.18 |
| Loss of glands | 2.20 ± 0.09 | 1.50 ± 0.13 | 1.88 ± 0.09 |
| Loss of basophilic staining | 1.60 ± 0.11 | 1.62 ± 0.11 | 1.12 ± 0.09 |
| Submucosa | |||
| Layer thinning | 1.50 ± 0.10 | 2.00 ± 0.26 | 0.25 ± 0.17 |
| Degree of vascular injury | 2.40 ± 0.18 | 2.00 ± 0.26 | 1.25 ± 0.11 |
Note: Tissue damage scores graded 0 to 4 (avg ± SD).
Abbreviations: IRC, infrared coagulation; HET55, HET Bipolar Ligator at 55°C; HET50, HET Bipolar Ligator at 50°C; SD, standard deviation.