Is there a best method to measure pressure gradient?
A variety of approaches for measurement of the transaortic pressure gradient have been championed.6 All of the existing methods have limitations. The authors assert that the pressure wire method does not pose the risks associated with transseptal puncture or a second arterial puncture. Some of the virtues of the pressure wire technique can now be found in 6 Fr double-lumen pigtail or multipurpose catheters. The newer versions are not prone to damping of the smaller lumen. There are other important risks with retrograde catheterization. The most bothersome is noted in the study by Omran et al, who compared pre- and post-catheterization brain magnetic resonance imaging (MRI) scans and neurologic exams in 152 aortic stenosis patients undergoing diagnostic catheterization.7 Patients were randomized to coronary study only versus retrograde catheterization of the LV for gradient and valve area assessment. Of those undergoing retrograde catheterization of the aortic valve, 22% had new focal d
A variety of approaches for measurement of the transaortic pressure gradient have been championed.6 All of the existing methods have limitations. The authors assert that the pressure wire method does not pose the risks associated with transseptal puncture or a second arterial puncture. Some of the virtues of the pressure wire technique can now be found in 6 Fr double-lumen pigtail or multipurpose catheters. The newer versions are not prone to damping of the smaller lumen. There are other important risks with retrograde catheterization. The most bothersome is noted in the study by Omran et al, who compared pre- and post-catheterization brain magnetic resonance imaging (MRI) scans and neurologic exams in 152 aortic stenosis patients undergoing diagnostic catheterization.7 Patients were randomized to coronary study only versus retrograde catheterization of the LV for gradient and valve area assessment. Of those undergoing retrograde catheterization of the aortic valve, 22% had new focal d
