Table 1.
Summary of patient preoperative information
| No. | Age (yr) | Sex | Chief complaint | Comorbidity | Past history | Hb | US | CT | MRI | GI | ES | EUS | DSA | Biopsy | Preoperative diagnosis |
| 1 | 28 | F | Melena | Cholecystolithiasis | 46 | 0 | 1 | N | 1 | 1 | N | N | 1/ES | Duodenal GIST(Biopsy) | |
| 2 | 48 | F | Incidentally found | Sub gastrectomy | 79 | 0 | 1 | N | 1 | N | N | N | N | Duodenal tumor | |
| 3 | 60 | M | Melena | 104 | 1 | 1 | N | 1 | 0 | N | N | 0/CT | Duodenal GIST (CT) | ||
| 4 | 70 | M | Pain | 128 | 0 | 1 | 1 | 1 | 1 | 1 | N | 1/EUS | Duodenal GIST(Biopsy) | ||
| 5 | 71 | M | Incidentally found | 130 | 0 | 0 | N | N | 0 | N | N | N | Abdominal tumor | ||
| 6 | 76 | F | Melena | Cholecystolithiasis | Appendectomy, stripping of right great saphenous vein | 65 | 0 | 1 | N | N | 1 | 1 | N | 0/EUS | Duodenal GIST (EUS) |
| 7 | 42 | F | Melena | 50 | 0 | 1 | N | N | N | N | N | N | Duodenal tumor | ||
| 8 | 74 | M | Melena | 81 | 1 | 1 | N | N | 1 | N | N | 0/ES | Duodenal tumor | ||
| 9 | 53 | F | Melena | 75 | 1 | 1 | N | N | 1 | N | N | 1/ES | Duodenal GIST(Biopsy) | ||
| 10 | 47 | F | Melena | Schistosomiasis | 99 | 0 | 1 | N | 1 | 0 | N | N | N | Duodenal tumor | |
| 11 | 55 | F | Melena | 61 | 1 | 1 | N | 1 | 0 | N | N | N | Duodenal tumor | ||
| 12 | 51 | M | Melena | 66 | 1 | 1 | N | 1 | 1 | N | N | 1/ES | Duodenal GIST (Biopsy) | ||
| 13 | 50 | M | Hematemesis | Polyp of gallbladder (1.9 cm) | Essential hypertension | 52 | 0 | 0 | N | N | 1 | N | N | 0/ES | Duodenal tumor |
| 14 | 69 | F | Pain | 87 | 0 | 0 | N | N | N | N | N | N | Retroperitoneal tumor | ||
| 15 | 65 | M | Melena | 65 | 1 | 1 | N | N | 1 | 1 | N | 0/EUS | Duodenal GIST (EUS) | ||
| 16 | 63 | M | Acute abdomen | 148 | 1 | N | N | N | N | N | N | N | Acute abdomen | ||
| 17 | 44 | F | Hematemesis | 56 | 0 | 1 | N | 1 | 1 | N | N | 0/ES | Duodenal tumor | ||
| 18 | 57 | F | Discomfort | Cholecystectomy, left nephrectomy | 126 | 1 | 1 | N | N | N | N | N | N | Duodenal GIST (CT) | |
| 19 | 20 | F | Melena | 61 | 0 | 1 | N | N | 1 | N | N | 0/ES | Duodenal tumor | ||
| 20 | 52 | M | Pain | 118 | 0 | 0 | N | N | N | N | N | N | Abdominal tumor | ||
| 21 | 53 | F | Pain | 118 | 0 | 0 | N | 1 | N | N | N | N | Abdominal tumor | ||
| 22 | 71 | F | Early satiety | 131 | 0 | 1 | 1 | 1 | 0 | 1 | N | 0/EUS | Retroperitoneal tumor | ||
| 23 | 53 | M | Early satiety | Resection of gluteal hemangioma | 156 | 0 | 1 | 1 | N | 1 | 1 | N | 0/EUS | Duodenal GIST (EUS) | |
| 24 | 50 | F | Melena | Cholecystolithiasis | Right radical mastectomy, hysteromyomectomy | 91 | 0 | 1 | N | N | 1 | N | N | 0/ES | Duodenal tumor |
| 25 | 46 | F | Pain | 93 | 0 | 0 | N | N | N | N | N | N | Abdominal tumor | ||
| 26 | 55 | M | Melena | Appendectomy | 69 | 0 | 0 | N | N | 1 | N | N | 0/ES | Tumor of pancreas head | |
| 27 | 51 | M | Incidentally Found | 155 | 0 | 1 | 1 | 0 | 0 | N | N | N | Duodenal tumor | ||
| 28 | 46 | F | Melena | Radical cystectomy | 87 | 0 | 1 | N | N | N | N | 1 | N | Duodenal GIST (CT) |
0: Negative; 1: Positive; N: Not evaluated; Hb: The initial hemoglobin (g/L) before liquid resuscitation; M: Male; F: Female; CT: Computed tomography; US: Ultrasonography; GIST: Gastrointestinal stromal tumor; MRI: Magnetic resonance imaging; GI: Gastrointestinal; ES: Gastroduodenoscopy; EUS: Endoscopic ultrasonography; DSA: Digital subtraction angiography.