Clinical validation of the AHRQ postoperative venous thromboembolism patient safety indicator.
Approach to Improving Safety
Setting of Care
This study confirmed that the AHRQ patient safety indicator (PSI) for postoperative deep venous thrombosis (DVT) is best used as a screening tool for identifying preventable DVT cases from administrative data. Use of the PSI identified nearly all true DVT cases but also identified a significant number of false positives.