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Insertion or use of a catheter.



the introduction of a special device (catheter) into the natural ducts and cavities of the human body in order to irrigate them and evacuate their contents.

All the requirements of asepsis (sterilization of the catheters, treatment of the hands and of the inlets) must be observed in catheterization. In treating ear diseases, physicians use metal catheters with a knoblike end to ventilate the tympanic cavity through the eustachian tube. In cardiology, a special catheter is inserted into the heart to establish a diagnosis and, if required, to determine the nature and scope of surgical intervention. The cardiac catheter is a thin tube 100–125 cm long made of a specially treated silk material that is impermeable to X rays; an attached movable tip ensures the proper passage of the device through the vessel. In cardiac catheterization, blood specimens can be taken from the heart’s cavities, a contrast medium can be introduced into the cavities for subsequent X-ray examination, and blood pressure can be measured in the cavities at the various phases of cardiac activity. In urology, the ureters can be cathe-terized with a special catheterization cystoscope. The procedure is used to determine the patency of the ureters, to collect urine separately from each kidney, and to inject a contrast medium into the renal pelvis for subsequent X-ray examination (pyelography).

Catheterization is performed with a tubelike device made of rubber, silk cloth impregnated with varnish, or metal. Catheters differ in shape and thickness; these values are measured by numbers on a special scale. Urologists ordinarily use catheters of rubber or metal that are 24–36 cm long for the male and 14—16 cm long for the female. Catheters with a small balloon at the end are also used. When inflated with air or filled with fluid, the balloon prevents the device from slipping out. Ureteral catheters are made of a silk material impregnated with varnish; they are 40–45 cm long. The length of a catheter is usually marked off in centimeters so that it can be inserted to a precise distance.


Mnogotomnoe rukovodstvo po khirurgii, vol. 9. Moscow, 1959. Pages 62–64.
Rukovodstvo po klinicheskoi urologii. Moscow, 1969. Pages 150–51.


References in periodicals archive ?
The specific aims of this study were to a) assess pain level reported post-cardiac catheterization, b) describe medication usage post-cardiac catheterization, c) describe the adequacy of analgesics used post cardiac catheterization, and d) examine factors associated with inadequate analgesics post-cardiac catheterization.
Once you have undergone a cardiac catheterization and coronary angiography and/or PCI, your doctor will review your test results and determine what treatment is required.
The implantation of cardiac devices usually lies within the domain of the cardiac catheterization laboratory.
In fact, Benson muscle relaxation is an effective nondrug method to decrease anxiety level in patients awaiting invasive diagnostic surgeries like cardiac catheterization and it is one of the best methods of muscle relaxation.
Cardiac catheterization via radial access represents an alternate strategy that does not require prolonged bed rest, and has also been associated with reductions in access site complications and hospital length of stay (9).
The preoperative evaluation of children with congenital heart disease undergoing cardiac catheterization, is a challenging task because of the wide range of anatomic and physiologic abnormalities.
This 66% rate of revascularization in patients referred for cardiac catheterization is glaringly at odds with a widely publicized study released by other investigators only a few days before Dr.
Major Finding: Physicians referred 13% of the women but only 6% of men for cardiac catheterization within the next 90 days of cardiac imaging.
Cardiac catheterization in humans was developed more than 50 years ago and has since evolved through many phases.
105 post-femoral artery cardiac catheterization patients.
As recently as two years ago, it was acceptable for health care organizations to expand by acquiring additional technological capabilities, such as creating multiple cardiac catheterization laboratories.