Laparoscopic Surgery Can Reduce Postoperative Edema Compared with Open Surgery

Table 5

The evolution of edema index and segmental edema index between groups.

	Group O ()	Group L ()	values
Whole body edema
PRE	0.388 0.015	0.389 0.008	0.723
POD3	0.402 0.010	0.397 0.008	0.001
POD5	0.397 0.007	0.394 0.007	0.039
Δ3	0.015 0.015	0.007 0.009	0.002
Δ5	0.009 0.016	0.005 0.012	0.383
Segmental edema
Right arm
PRE	0.374 0.017	0.375 0.011	0.377
POD3	0.384 0.009	0.379 0.012	0.013
POD5	0.376 0.006	0.376 0.007	0.994
Δ3	0.010 0.018	0.004 0.015	0.238
Δ5	0.004 0.019	0.003 0.011	0.491
Left arm
PRE	0.374 0.009	0.376 0.010	0.479
POD3	0.384 0.009	0.381 0.012	0.226
POD5	0.376 0.009	0.378 0.008	0.581
Δ3	0.009 0.012	0.006 0.012	0.114
Δ5	0.004 0.012	0.004 0.011	0.988
Trunk
PRE	0.388 0.012	0.391 0.010	0.181
POD3	0.402 0.013	0.398 0.012	0.107
POD5	0.396 0.008	0.393 0.009	0.284
Δ3	0.014 0.015	0.007 0.013	0.020
Δ5	0.006 0.010	0.005 0.011	0.492
Right leg
PRE	0.388 0.012	0.391 0.010	0.181
POD3	0.402 0.013	0.398 0.012	0.107
POD5	0.396 0.008	0.393 0.009	0.284
Δ3	0.014 0.015	0.007 0.013	0.020
Δ5	0.006 0.010	0.005 0.011	0.492
Left leg
PRE	0.391 0.015	0.394 0.010	0.275
POD3	0.404 0.013	0.402 0.008	0.269
POD5	0.399 0.008	0.396 0.014	0.316
Δ3	0.013 0.018	0.008 0.012	0.045
Δ5	0.006 0.011	0.004 0.018	0.971

Data are mean SD. Group O: patients who underwent open surgery; Group L: patients who underwent laparoscopic surgery. PRE: preoperatively. POD3: postoperative day 3. POD5: postoperative day 5. : difference values of edema index; Δ: difference values of segmental edema index; 3: POD3-PRE. Δ5: POD5-PRE.
Mann-Whitney test except -test.