Clinical effects of calibration of CoaguChek XS PT Test Strips on Anticoagulation Management Services

摘要

Objective: In January 2018, Roche Diagnostics calibrated CoaguChek XS PT Test Strips to the latest World Health Organization reference preparation. On September 12, 2018, Roche Diagnostics issued an urgent medical device correction statement warning of inaccurate international normalized ratio (INR) results greater than 4.5 and recommended additional confirmatory testing. Eight weeks later, on November 2, the U.S. Food and Drug Administration issued a class I recall of all affected lot numbers. The objective of this project was to determine the clinical effects of recalibration of CoaguChek on patients managed by the Anticoagulation Management Services (AMS).