Table 1 Endoscopic and histologic findings in 242 elderly patients
Variables | |
|---|---|
Number of lesions, n (%) | |
Single | 166 (68.6) |
Multiple | 76 (31.4) |
Location of lesion, n (%) | |
Upper 1/3 | 28 (11.5) |
Mid 1/3 | 78 (32.2) |
Lower 1/3 | 136 (56.2) |
Macroscopic appearance, n (%) | |
Flat/depressed | 67 (27.7) |
Elevated | 175 (72.3) |
Histologic findings, n (%) | |
Low-grade dysplasia | 124 (51.2) |
Carcinoma in situ or adenocarcinoma | 112 (46.3) |
Other | 6 (2.5) |
Method of endoscopic resection, n (%) | |
EMR | 100 (41.3) |
ESD | 142 (58.7) |
Mean procedure time, min, mean ± SD | 34.9 ± 23.7 |
Method of Sedation | |
Midazolam + Propofol+ Pethidine | 215 (88.8) |
Midazolam + Pethidine | 27 (11.2) |
Dose of sedative agents, mean ± SD | |
Midazolam, mg | 3.43 ± 1.16 |
Propofol, mg | 112.0 ± 88.0 |