Table 5.
Encounters with a VTE Diagnosis Code but Not Considered Valid Acute VTE Events after Chart Review (n=2,606)
| Reason why events were not considered valid | Hospital/Emergency Department (N=1229)
|
|||
|---|---|---|---|---|
| Pulmonary embolism N=338 |
Lower extremity DVT N=379 |
Upper extremity DVT N=88 |
Other venous thrombosis N=424 |
|
| Prior history of VTE but not acute | 14.2% (48/338) | 15.6% (59/379) | 5.7% (5/88) | 9.4% (40/424) |
| Alternative non-VTE diagnosis | 43.8% (148/338) | 38.0% (144/379) | 39.8% (35/88) | 46.5% (197/424) |
| Superficial venous thrombophlebitis | 2.1% (7/338) | 13.5% (51/379) | 25.0% (22/88) | 14.9% (63/424) |
| Initial concern for VTE but subsequently excluded | 19.2% (65/338) | 15.3% (58/379) | 4.5% (4/88) | 10.6% (45/424) |
| VTE suspected, but not confirmed | 3.6% (12/338) | 0% (0/379) | 0% (0/88) | 0.5% (2/424) |
| Insufficient documentation available in chart | 17.2% (58/338) | 17.7% (67/379) | 25.0% (22/88) | 18.2% (77/424) |
| Reason why events were not considered valid | Outpatient Encounters (N=1377)
|
|||
|---|---|---|---|---|
| Pulmonary embolism N=213 |
Lower extremity DVT N=303 |
Upper extremity DVT N=49 |
Other venous thrombosis N=812 |
|
| Prior history of VTE but not acute | 68.1% (145/213) | 35.0% (106/303) | 2.0% (1/49) | 15.8% (128/812) |
| Alternative non-VTE diagnosis | 18.8% (40/213) | 24.8% (75/303) | 22.4% (11/49) | 22.3% (181/812) |
| Superficial venous thrombophlebitis | 2.3% (5/213) | 12.9% (39/303) | 51.0% (25/49) | 44.7% (363/812) |
| Initial concern for VTE but subsequently excluded | 4.7% (10/213) | 16.5% (50/303) | 4.1% (2/49) | 7.0% (57/812) |
| VTE suspected, but not confirmed | 0% (0/213) | 0% (0/303) | 0% (0/49) | 0.2% (2/812) |
| Insufficient documentation available in chart | 6.1% (13/213) | 10.9% (33/303) | 20.4% (10/49) | 10.0% (81/812) |