Table 1.
Clinical characteristics of patients
| Variables | n = 11 |
|---|---|
| Age (y), median (range) | 67 (43–72) |
| Male / female | 7 (63.6) |
| BMI (kg/m2), median (range) | 22.6 (20.1–26.6) |
| ASA score before stent placement, n (%) | |
| I or II | 9 (81.8) |
| III | 2 (18.2) |
| Tumor location, n (%) | |
| Sigmoid colon | 7 (63.6) |
| Descending colon | 2 (18.2) |
| Splenic flexure of colon | 2 (18.2) |
| Smoking, n (%) | 4 (36.4) |
| Alcohol consumption, n (%) | 4 (36.4) |
| COPD, n (%) | 1 (9.1) |
| Diabetes mellitus, n (%) | 3 (14.3) |
| Hypertension, n (%) | 5 (23.8) |
| Albumin (g/L), median (range) | 33.3 (28.9–35.3) |
| Hemoglobin (g/L), median (range) | 93.0 (70.0–144.0) |
| Prealbumin (g/L), median (range) | 0.16 (0.12–0.22) |
| Bowel wall thickness at the beginning of the study (mm), median (range) | 3.8 (3.0–7.0) |
| Preoperative chemotherapy regimen | |
| CAPOX | 6 (54.5) |
| mFOLFOX6 | 5 (45.5) |
| ypT, n (%) | |
| T3 | 9 (81.8) |
| T4 | 2 (18.2) |
| ypN, n (%) | |
| N0 | 6 (54.5) |
| N1 | 4 (36.4) |
| N2 | 1 (9.1) |
| Tumor regression gradea | |
| 1 | 4 (36.4) |
| 2 | 5 (45.5) |
| 3 | 2 (18.2) |
| Perineural invasion | 0 |
| Lymphvascular invasion | 2 (18.2) |
| Tumor deposits | 1 (9.1) |
| The time interval to elective operation (d), median (range) | 69 (62–75) |
| Follow-up | 44 (37–55) |
BMI Body mass index, ASA American Society of Anesthesiologists, COPD chronic obstructive pulmonary disease, CRM circumferential resection margin
aModified Dworak tumor regression grade system