The alteplase solution did not clear the occlusion in 2 catheters (3.4%): 1 had a mechanical obstruction and 1 cleared two hours after the 1-mg dose was deemed a failure. None of the six catheter ...

Although the sample was small, a significant association remained when the age of the occlusion and the age of the alteplase solution used in treating the catheter were included in the statistical ...