Inpatient thrombophilia workup; does hematology consult prevent unnecessary testing?

Hypercoagulable disorders are best described as a group of acquired and hereditary conditions that increase the risk for the development of thrombi within veins or arteries. In the setting of an unprovoked venous thromboembolism, common practice in the inpatient setting has been further investigation via a thrombophilia workup to establish an underlying cause. Current Hematology-Oncology guidelines argue against inpatient workup as the results rarely influence inpatient management. Following American Society of Hematology guidelines (Middledorp), the current study found that only 15% (11/72) of patients met appropriate criteria for thrombophilia testing. There was no relationship between appropriate thrombophilia testing and diagnosis of thrombophilia or initiation of anticoagulation. There was a relationship between appropriate thrombophilia testing and Hematology-Oncology consultation. This demonstrates the need for expert consultation if thrombophilia testing is being considered. The current study provides more evidence that a strong recommendation against inpatient testing should be made as testing does not aid in diagnosis or change management and is an overutilization of healthcare resources.