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World J Gastroenterol. Jun 7, 2010; 16(21): 2669-2676
Published online Jun 7, 2010. doi: 10.3748/wjg.v16.i21.2669
Published online Jun 7, 2010. doi: 10.3748/wjg.v16.i21.2669
Table 1 Fields of application for OMOM capsule endoscopy in Chinese patients
| Fields of application | n (%) |
| Obscure gastrointestinal bleeding | 1232 (51.3) |
| Abdominal pain | 642 (26.8) |
| Chronic diarrhea | 223 (9.3) |
| Health examination | 103 (4.3) |
| Suspected Crohn’s disease | 52 (2.2) |
| Iron deficiency anemia | 34 (1.4) |
| Suspected tumors | 25 (1.0) |
| Unexplained weight loss | 19 (0.8) |
| Small intestinal polyposis | 10 (0.4) |
| Ileus | 10 (0.4) |
| Others | 50 (2.0) |
| Total | 2400 (100.0) |
Table 2 Small bowel findings on OMOM capsule endoscopy in 2400 Chinese patients n (%)
| Findings | Overall | OGIB | Non-OGIB |
| Sum | 2400 (100.0) | 1232 (100.0) | 1168 (100.0) |
| Negative | 1256 (52.3) | 463 (37.6) | 793 (67.9) |
| Positive | 1144 (47.7) | 769 (62.4) | 375 (32.1) |
| Arteriovenous malformations | 322 (28.1) | 313 (40.7) | 9 (2.4) |
| Tumor | 216 (18.9) | 201 (26.1) | 15 (4.0) |
| Polyp | 119 (10.4) | 24 (3.1) | 95 (25.3) |
| Crohn’s disease | 90 (7.9) | 23 (3.0) | 67 (17.9) |
| Ulcer | 89 (7.8) | 41 (5.3) | 48 (12.8) |
| Mucosal erosion | 82 (7.2) | 19 (2.5) | 63 (16.8) |
| Duodenal ulcer | 60 (5.2) | 38 (4.9) | 22 (5.9) |
| Active bleeding | 59 (5.2) | 57 (7.4) | 2 (0.5) |
| Parasite | 43 (3.8) | 31 (4.0) | 12 (3.2) |
| Hookworm | 26 (2.3) | 26 (3.4) | 0 (0.0) |
| Lumbricoides | 16 (1.4) | 4 (0.5) | 12 (3.2) |
| Strobilus | 1 (0.1) | 1 (0.1) | 0 (0.0) |
| Lymphanglectasia | 23 (2.0) | 0 (0.0) | 23 (6.1) |
| Diverticulum | 21 (1.8) | 18 (2.3) | 3 (0.8) |
| Celiac diseases | 7 (0.6) | 0 (0.0) | 7 (1.9) |
| Others | 13 (1.1) | 4 (0.5) | 9 (2.4) |
Table 3 Gender and age differences of small bowel findings on OMOM capsule endoscopy in 1232 Chinese patients with obscure gastrointestinal bleeding n (%)
| Findings | Male | Female | Age ≤ 60 yr | Age > 60 yr |
| Sum | 731 (100.0) | 501 (100.0) | 838 (100.0) | 394 (100.0) |
| Negative | 277 (37.9) | 186 (37.1) | 344 (41.1) | 119 (30.2) |
| Positive | 454 (62.1) | 315 (62.9) | 494 (58.9) | 275 (69.8)b |
| Arteriovenous malformations | 189 (41.6) | 124 (39.4) | 206 (41.7) | 107 (38.9) |
| Tumor | 117 (25.8) | 84 (26.7) | 125 (25.3) | 76 (27.6) |
| Polyp | 14 (3.1) | 10 (3.2) | 16 (3.2) | 8 (2.9) |
| Crohn’s disease | 17 (3.7) | 6 (1.9) | 16 (3.2) | 7 (2.5) |
| Ulcer | 28 (6.2) | 13 (4.1) | 33 (6.7) | 8 (2.9) |
| Mucosal erosion | 9 (2.0) | 10 (3.2) | 14 (2.8) | 5 (1.8) |
| Duodenal ulcer | 24 (5.3) | 14 (4.4) | 25 (5.1) | 13 (4.7) |
| Active bleeding | 28 (6.2) | 29 (9.2) | 25 (5.1) | 32 (11.6) |
| Parasite | 15 (3.3) | 16 (5.1) | 18 (3.6) | 13 (4.7) |
| Hookworm | 13 (2.9) | 13 (4.1) | 14 (2.8) | 12 (4.4) |
| Lumbricoides | 1 (0.2) | 3 (1.0) | 3 (0.6) | 1 (0.4) |
| Strobilus | 1 (0.2) | 0 (0.0) | 1 (0.2) | 0 (0.0) |
| Diverticulum | 10 (2.2) | 8 (2.5) | 12 (2.4) | 6 (2.2) |
| Others | 3 (0.7) | 1 (0.3) | 4 (0.8) | 0 (0.0) |
Table 4 Small bowel findings on OMOM capsule endoscopy in Chinese patients with abdominal pain and chronic diarrhea n (%)
| Abdominal pain subgroup | Chronic diarrhea subgroup | |
| Sum | 642 (100.0) | 223 (100.0) |
| Negative | 389 (60.6) | 191 (85.7) |
| Positive | 253 (39.4) | 32 (14.3) |
| Polyp | 66 (26.1) | 15 (46.9) |
| Mucosal erosion | 60 (23.7) | 0 (0.0) |
| Ulcer | 39 (15.4) | 1 (3.1) |
| Crohn’s disease | 22 (8.7) | 4 (12.5) |
| Lymphanglectasia | 22 (8.7) | 1 (3.1) |
| Duodenal ulcer | 18 (7.1) | 0 (0.0) |
| Lumbricoides | 10 (4.0) | 1 (3.1) |
| Tumor | 4 (1.6) | 1 (3.1) |
| Diverticulum | 1 (0.4) | 0 (0.0) |
| Celiac diseases | 1 (0.4) | 6 (18.8) |
| Others | 10 (4.0) | 3 (9.4) |
Table 5 Findings on OMOM capsule endoscopy in subjects for health examination n (%)
| Findings | n (%) |
| Sum | 103 (100.0) |
| Negative | 76 (73.8) |
| Positive | 27 (26.2) |
| Small intestinal polyp | 7 (25.9) |
| Colonic polyp | 4 (14.8) |
| Reflux esophagitis | 3 (11.1) |
| Diverticula of colon | 2 (7.4) |
| Duodenal ulcer | 2 (7.4) |
| Small intestinal diverticula | 2 (7.4) |
| Small intestinal mucosal erosion | 2 (7.4) |
| Colonic ulcer | 1 (3.7) |
| Duodenal diverticulum | 1 (3.7) |
| Esophagopolypus | 1 (3.7) |
| Gastric polyp | 1 (3.7) |
| Small intestinal tumor | 1 (3.7) |
Table 6 The comparison of OMOM and PillCam SB capsule endoscopy
| Technical specifications | OMOM | PillCam SB |
| Length (mm) | 27.9 | 26 |
| Diameter (mm) | 13 | 11 |
| Weight (g) | ≤ 6 | 3.4 |
| Frame rate (frames/s) | 0.5/1/2 (adjustable) | 2 (fixed) |
| Image sensor | CCD | CMOS |
| Shutter speed (s) | 1/200 | 1/30 |
| Image resolution (mm) | 0.05 | 0.1 |
| Pixel | 300 000 | 80 000 |
| Field of view (°) | 140 ± 10 | 140 |
| Illumination | 6 white LEDs | 6 white LEDs |
| Antennas (body leads) | 14 | 8 |
| Real-time (RT) view | RT monitoring | RT viewer |
| Recording time (h) | 8-16 | 8 |
| Capsule-workstation duplex communication | Yes | No |
| Cost, $ (in China) | 400-800 | 1000-1200 |
- Citation: Liao Z, Gao R, Li F, Xu C, Zhou Y, Wang JS, Li ZS. Fields of applications, diagnostic yields and findings of OMOM capsule endoscopy in 2400 Chinese patients. World J Gastroenterol 2010; 16(21): 2669-2676
- URL: https://www.wjgnet.com/1007-9327/full/v16/i21/2669.htm
- DOI: https://dx.doi.org/10.3748/wjg.v16.i21.2669