Table 1.
Study data.
| Date | Value (range or %) |
|---|---|
| Total patients | 35 |
| Mean age, years (range) | 74.3 ± 5.6 (63–85) |
| Sex (male/female) | 20/15 |
| Location (upper/middle/lower) | 9/18/8 |
| Stenosis length (mm) | 48.7 ± 14.5 (21–80) |
| Maximum tumor diameter (mm) | 22.3 ± 5.4 (13–37) |
| Stooler score (III/IV) | 16/19 |
| Previous treatment (%) | |
| No | 19 (28.6) |
| Stenting | 8 (22.9) |
| Irradiation | 7 (20) |
| Chemotherapy | 4 (11.4) |
| The reasons for forceps biopsies | |
| Poor conditions | 26 (74.2) |
| Refusal of endoscopy | 7 (20) |
| Anesthesia problems | 2 (5.8) |
| Mean number of biopsies (range) | 5.2 (2–8) |
| Mean procedure duration (min) | 21.9 ± 4.5 (15–32) |
| Mean irradiation dose | 7.2 mSv (2.4–11.9) |
| Balloon dilatation assistance (N/balloon diameter, mm) | 7/8 |
| Karnofsky score | |
| Before | 51.1 ± 7.6 (40–60) |
| After | 63.1 ± 9.0 (40–80) |
| Technical success rate (%) | 100 |
| Sensitivity (%) | 92.3 (24/26) |
| Specificity (%) | 77.8 (7/9) |
| Accuracy (%) | 88.6 (31/35) |
| Minor bleeding (%) | 2 |
| Final pathology | |
| Esophageal carcinoma | 28 |
| Granulation tissue | 7 |