Table 1.
Comparison of the clinicopathological differences between minimally invasive gastrectomy and open gastrectomy for octogenarian and older gastric cancer patients
| Minimally invasive gastrectomy n = 27 | Open gastrectomy n = 53 | P value | |
|---|---|---|---|
| Age (years) | 84.3 ± 3.3 | 84.1 ± 3.2 | 0.831 |
| Gender (M/F) | 19/8 | 41/12 | 0.587 |
| Tumor size (cm) | 3.9 ± 2.3 | 4.3 ± 2.5 | 0.478 |
| BMI (kg/m2) | 24.4 ± 3.1 | 22.7 ± 3.5 | 0.032 |
| Resection extent | 0.015 | ||
| Subtotal/total gastrectomy | 26/1 | 39/14 | |
| Reconstruction method | 0.345 | ||
| Billroth-I | 6 (22.2) | 7 (13.2) | |
| Roux-en-Y or uncut R-Y | 21 (77.8) | 46 (86.8) | |
| Extent of lymphadenectomy | |||
| <D2/D2 | 2/25 | 6/47 | 0.710 |
| Retrieved LN number | 26.0 ± 10.1 | 28.4 ± 13.4 | 0.428 |
| Pathological T category | 0.017 | ||
| T1/T2/T3/T4 | 17/3/6/1 | 17/12/17/7 | |
| Pathological N category | 0.058 | ||
| N0/N1/N2/N3 | 20/2/4/1 | 29/4/12/8 | |
| Pathological TNM stage | 0.051 | ||
| I/II/III | 18/6/3 | 22/13/18 | |
| Number of comorbidities | 0.363 | ||
| 0 | 5 (18.5) | 9 (17) | |
| 1 | 6 (22.2) | 22 (41.5) | |
| ≧2 | 16 (59.3) | 22 (41.5) | |
| Operative outcomes | |||
| Operative time (min) | 311.5 ± 106.6 | 313.2 ± 101.9 | 0.945 |
| Operative blood loss (mL) | 63.7 ± 59.2 | 372.3 ± 340.4 | <0.001 |
| Postoperative hospital stay (day) | 10.7 ± 8.6 | 15.4 ± 9.7 | 0.036 |
| Surgical complications | 6 (22.2) | 6 (11.3) | 0.207 |
| Anastomosis leakage | 1 (3.7) | 1 (1.9) | 1.000 |
| Anastomosis stenosis | 1 (3.7) | 0 | 0.337 |
| Delayed gastric emptying | 4 (14.8) | 2 (3.8) | 0.172 |
| Intestinal obstruction | 1 (3.7) | 0 | 0.337 |
| Pneumonia | 0 | 2 (3.8) | 0.547 |
| Surgical Mortality | 0 | 1 (1.9) | 1.000 |
BMI: body mass index; LN: lymph node; comorbidities including cardiovascular disease, cerebrovascular accident, endocrine disease, pulmonary disease, liver cirrhosis, benign prostate hyperplasia, etc.
Some patients had more than one complication
Data were presented as mean ± SD or n (%)