Diagnostics
| Total attempts | Success rate (%) | |
| Diagnostic modalities (GI bleed) | ||
| Gastroscopy | 15 | 26.7 |
| Capsule endoscopy | 30 | 66.7* |
| EGD | 41 | 24.4† |
| Push enteroscopy | 3 | 33.3 |
| DBE | 7 | 85.7* |
| Endoscopy (unspecified) | 11 | 81.8 |
| Colonoscopy | 51 | 31.4† |
| Imaging‡ | 35 | 25.7 |
| n | Mean±SD | |
| No of modalities required to identify bleeding source | 84 | 3.5±1.5 |
| n | Percent of total cases (%) | |
| Evidence of AVWS found§ | 27 | 35.1 |
| Evidence of AVWS not found | 9 | 11.7 |
| AVWS not assessed¶ | 9 | 11.7 |
| AVWS assessment not stated** | 32 | 41.6 |
*†Within a section, values labelled with different superscripts differ (p<0.05), however, values labelled with a common superscript were not compared with one another.
‡Includes angiography, scintigraphy, arteriogram, CT enteroclysis, and barium studies.
§81.5% of these diagnoses were based on gel electrophoresis results.
¶Case reports which stated that they did not assess for AVWS.
**Case reports which did not describe whether or not they assessed for AVWS.
AVWS, acquired von Willebrand syndrome; DBE, double balloon enteroscopy; EGD, oesophagogastroduodenoscopy.