

Left heart catheterization is the passage of a catheter (a thin flexible tube) into the left side of the heart. The procedure may be performed to obtain diagnostic information about the left side of the heart or to treat certain types of heart conditions.
The procedure can also be used to determine pressure and blood flow in the heart's chambers, to collect blood samples from the heart, and to examine the arteries of the heart by a type of x-ray called fluoroscopy.
Catheterization - left heart