| | Interventional Cardiac Catheterization, Cincinnati Children's Hospital Medical Center (Site not responding. Last check: 2007-10-22) |
 | | Cardiac catheterization is a procedure that involves puncturing an artery and / or vein, usually located in the groin, so that a small, long, flexible tube (catheter) can be guided into the heart and major vessels around the heart. |
 | | With cardiac catheterization, pressure measurements and blood samples can be obtained from the various cardiac chambers and blood vessels around the heart allowing calculations of detailed information about the heart's function. |
 | | Interventional catheterization is also performed when there are certain defects in the heart such as extra vessels, or in a patient with an atrial septal defect hole between the upper two chambers of the heart) to close off these communications. |
| www.cincinnatichildrens.org /health/heart-encyclopedia/diagnostic/catheter.htm (841 words) |