Is Dual-Axis Rotational Coronary Angiography Radiation Dose Reduction Achievable in a Population with 100% Suspected Coronary Artery Disease? A Randomized Trial.

Background: Previous studies have shown a reduction in radiation dose and contrast volume using dual-axis rotational coronary angiography (DARCA), but this has not been replicated in a population with 100% coronary artery disease (CAD).

Objective: To find if DARCA dose reduction is achievable in this population, we sought to compare the radiation dose, contrast volume, and procedure time between DARCA and conventional coronary angiography (CCA) techniques in a setting characterized by a prevalence of 100% suspected coronary artery disease.

Methods: An all-comer, prospective, randomized, open-label trial was conducted.

[Simple mechanical reperfusion in acute myocardial infarction: determinants, prognostic implications and relation with thrombus histology].

Simple mechanical reperfusion (SMR) is defined as reperfusion achieved after wire insertion at the occluded infarct-related artery in primary angioplasty. The determinants and prognostic implications of SMR and its relationship with the histopathology of the rescued thrombus were evaluated in 601 patients with acute myocardial infarction showing ST elevation and pre-procedural total occlusion of the infarct-related artery (TIMI flow 0). Two groups were considered according to the presence of SMR, defined as the visualization of contrast material after crossing the occlusion with the guide wire.