TCT-736 Long-Term Durability of Transcatheter Heart Valves: Insights From Bench Testing to 25 Years

Post-dilating transcatheter heart valves.

In this issue of JACC: Cardiovascular Interventions, Nombella-Franco and the Quebec Heart and Lung Institute (1) report their experience with balloon post-dilation in patients with residual paravalvular aortic regurgitation after transcatheter heart valve (THV) implantation. Paravalvular regurgitation grade 2 was documented by transesophageal echocardiography in approximately one-third of their...

Prediction of long-term slake durability of clay-bearing rocks

A research program was conducted on different clay-bearing rocks selected from the Ilam, Sarpol-e Zahab and Tajarak regions (Iran) to predict their slaking characteristics. The new durability apparatus (nested mesh drums) separates disintegrated particles varying from > 25.4 to < 2 mm as the drums were rotated. On the basis of the particle size distribution, the disintegration ratio (DR) was us...

New insights into platelet function testing: from bench to bedside.

The history of platelet function testing intercalates with anti-platelet drug development. Indeed, the original bleeding time test was developed to assess platelet disorders associated with bleeding symptoms. However, this test was found ineffective for testing the response to anti-platelet drugs. The first anti-platelet drug, aspirin, was originally developed as an anti-inflammatory agent late...

Development of a new creep testing equipment to obtain long-term deformation parameters of salt rocks

Creep phenomenon in rock engineering plays a key role in development of underground spaces as they must be stable enough for a long period of time. Current research involved designing and manufacturing of a new creep testing machine. The equipment is capable to perform simultaneous light-duty creep tests on more than one cylindrical rock samples at a very low cost.To evaluate the equipment’s pe...

Current Status of Long-term Care in Taiwan: Transition of Long-term Care Plan From 1.0 to 2.0