Table 3 Total procedure time, dissection time, and dissection speed based on the resected specimen area.

From: Efficacy of robot arm-assisted endoscopic submucosal dissection in live porcine stomach (with video)

Specimen area

Variables

C-ESD (N = 4)

R-ESD (N = 8)

p-value

Smaller specimen

Specimen area (mm2)

1261.7 (1181.9–1288.8)

1159.0 (976.0–1218.1)

0.214

Total procedure time (s)

804.0 (725.3–847.3)

921.5 (812.8–1114.8)

0.283

Dissection time (s)

472.0 (422.3–528.5)

416.5 (281.0–434.0)

0.283

Dissection speed (mm2/s)

2.4 (2.2–2.9)

2.9 (2.6–3.7)

0.368

Larger specimen

Specimen area (mm2)

1786.3 (1493.4–2067.5)

1776.0 (1552.3–3046.6)

0.570

Total procedure time (s)

1529.5 (1226.8–1941.8)

1164.5 (1059.8–1306.8)

0.214

Dissection time (s)

1104.0 (884.3–1431.3)

596.5 (362.3–531.0)

0.048

Dissection speed (mm2/s)

1.5 (1.3–1.9)

4.2 (3.4–5.7)

0.016

  1. Values are presented as the median and interquartile range.