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©The Author(s) 2024.
World J Gastrointest Surg. Feb 27, 2024; 16(2): 539-545
Published online Feb 27, 2024. doi: 10.4240/wjgs.v16.i2.539
Published online Feb 27, 2024. doi: 10.4240/wjgs.v16.i2.539
Table 1 Demographic characteristics of participants
Participants’ characteristics | n (%) |
No. of participants | 52 |
Practice setting (all) | 52 |
Academic | 48 (92.3) |
Private | 4 (7.7) |
Age, yr (mean, SD) | 39.9 (6.6) |
Gender (male) | 26 (50) |
Years in practice (mean, SD) | 11.0 (6.9) |
No. of gastroscopies/year | |
< 500 | 15 (28.9) |
501-1000 | 9 (17.3) |
1001-1500 | 5 (9.6) |
1501-2000 | 7 (13.5) |
> 2000 | 16 (30.8) |
Table 2 Measurement accuracy of 52 endoscopists for each measurement condition
Visual method | Biopsy forceps | P value | |
All varices | |||
Accuracy (exact) | 13.81% | 20.28% | 0.004 |
Actual size ≤ 5 mm | |||
Accuracy (exact) | 22.12% | 34.62% | 0.005 |
Actual size > 5 mm | |||
Accuracy (exact) | 9.07% | 12.09% | 0.185 |
Correct classification | |||
≤ 5 mm (category A) | 84.62% | 87.98% | 0.996 |
> 5 mm (category B) | 64.56% | 78.85% | < 0.0001 |
Table 3 Comparison of actual versus estimated varices size using a visual estimation method and open biopsy forceps method
Actual size ≤ 5 mm (4 varices) | Actual size > 5 mm (7 varices) | |
Visual method | ||
Size estimate ≤ 5 mm | 176 | 129 |
Size estimate > 5 mm | 32 | 235 |
Accuracy | 84.62% | 64.56% |
Biopsy forceps | ||
Size estimate ≤ 5 mm | 183 | 77 |
Size estimate > 5 mm | 25 | 287 |
Accuracy | 87.98% | 78.85% |
- Citation: Duan ZH, Zhou SY. Biopsy forceps are useful for measuring esophageal varices in vitro. World J Gastrointest Surg 2024; 16(2): 539-545
- URL: https://www.wjgnet.com/1948-9366/full/v16/i2/539.htm
- DOI: https://dx.doi.org/10.4240/wjgs.v16.i2.539