Transradial cardiac catheterization in patients with coronary bypass grafts: feasibility analysis and comparison with transfemoral approach.

The objective of this study was to analyze the feasibility and safety of transradial catheterization in patients with remote surgical cardiac revascularization. Selective catheterization of coronary bypass grafts might be more difficult and time-consuming from the radial artery as compared to the femoral route. This special patient subset has been either excluded or underrepresented in previous studies.

Vasoreactivity of the radial artery after transradial catheterization.

The vasomotor response was used to assess the degree of radial artery injury after transradial catheterization. Vasoreactivity was studied by ultrasound before catheterization, 24 hours after, at 1 week and at 1 month in 18 patients. Mean radial artery diameter increased from 2.

[Vascular complications associated with radial artery access for cardiac catheterization].

Cardiac catheterization via the radial artery is associated with vascular complications, albeit less frequently than with the femoral approach. However, the management of these complications differs and is poorly described in the literature. We present our experience with vascular complications secondary to transradial access, with emphasis on their specific treatment.

Validation of 4 French catheters for quantitative coronary analysis: in vivo variability assessment using 6 French guiding catheters as reference scaling devices.

Unlabelled: Although numerous studies have established the utility of 4 F catheters for routine coronary angiography, its adequacy for automatic quantitative coronary analysis has not been previously assessed.

Methods: In 32 consecutive patients, coronary angiography was performed sequentially with 4 F diagnostic catheters and 6 F guiding catheters after intracoronary nitroglycerin. A total of 43 lesions were evaluated for quantitative analysis using both types of catheter as scaling devices.