During the Swan-Ganz catheterization, a thin flexible tube is
inserted into the right side of the heart to measure and monitor
its functions. Swan-Ganz catheterization is done in the
hospital. First, the patient is given a mild sedative to help
him or her relax. Then, an intravenous line is inserted into a
vein in the arm to allow drugs to be delivered during the
procedure. The procedure itself involves inserting a thin
flexible tube, or catheter, into a large vein in the neck,
groin, or arm. This catheter is then threaded all the way into
the right side of the heart. To begin, an area of skin on the
neck, groin, or arm is cleaned with an antiseptic. A local
anesthetic is injected at the site to numb the area. A small
incision is made at this site. Then, the Swan-Ganz catheter is
inserted and threaded to the heart. Once in the heart, the
catheter is passed through the right atrium and the right
ventricle. From there it goes into the pulmonary artery. The
positioning of the end of the catheter is sometimes gui