Comparison of radiation exposure during transradial diagnostic coronary angiography with single‐ or multi‐catheters approach

Abstract

Compared to a single-catheter approach, a multi-catheters approach with standard Judkins catheters for DCA significantly reduced patient radiation exposure. Whether single catheter designed for DCA by radial approach can further reduce radiation exposure compared to Judkins catheters remains to be compared in randomized studies. © 2016 Wiley Periodicals, Inc.

Procedural and clinical performance of dual‐ versus single‐catheter strategy for transradial coronary angiography: A meta‐analysis of randomized trials

“…On a statistical basis, despite we found no interaction between the treatment effect for these outcomes and several features at patient (age, gender, diabetes status) and procedural (crossovers, sheath size, heparin dose and catheter type) level, we could not ascertain whether the number of angiographic projections influenced main outcomes. On a practical basis, previous observational studies found less stability of single catheters within the coronary ostia during dye injection, resulting in more frequent disengagement, less optimal opacification, and higher radiation exposure . Consistent with these findings, all trials included in this analysis graded the stability of single catheters during coronary angiography as inadequate in comparison to that of standard catheters .…”

“…On a practical basis, previous observational studies found less stability of single catheters within the coronary ostia during dye injection, resulting in more frequent disengagement, less optimal opacification, 19 and higher radiation exposure. 20 Consistent with these findings, all trials included in this analysis graded the stability of single catheters during coronary angiography as inadequate in comparison to that of standard catheters. 5,7,8,[14][15][16][17] This mechanical behavior, which leads to unselective injection of contrast medium, incomplete filling of coronary arteries and poor image quality, is likely to counterbalance any potential advantage of single-catheter strategy.…”

Comparison of one-catheter strategy versus conventional two-catheter strategy on the volume of radiological contrast and diagnostic coronary catheterization performance by transradial access: A systematic review and meta-analysis of randomized clinical trials

“…In recent years, multiple studies have been published about the benefits of the one-catheter strategy, highlighting greater benefit in observational studies [8][9][10][11] than in controlled studies [12][13][14][15][16] , which may entail a bias in the perception of the real benefits of this strategy, especially regarding radiological contrast saving. However, to date there are no studies that integrate the information derived from randomized clinical trials (RCT) to adequately quantify the advantages of the one-catheter strategy.…”