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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 ?
Besides, there is drug side effects such as hypotension, weakening vital signs like breathing and heart rate, drowsiness, nausea, vomiting, constipation, sometimes allergic reactions, and even shock that increase threats during and after cardiac catheterization and also have varieties of body and soul side effects like dependence and resistance to drugs, and would impose high expenses to the country's health and treatment system [8].
During this three-year period results show Mount Sinai's Cardiac Catheterization Laboratory excels achieving a significantly higher safety level than the statewide average even while performing the highest number of PCI procedures in New York (14,525).
The current evidence suggests that early ambulation following cardiac catheterization improves patient comfort and may also reduce hospital length of stay, although this was not evaluated in the present study.
In a multivariate analysis adjusted for variables including age, diabetes, type of imaging, and the test findings, female gender stood out as an independent predictor of referral for cardiac catheterization, with a twofold increased likelihood.
The last factor is cardiac catheterization, which is necessary prior to either revascularization procedure.
Procurement system, including cardiac catheterization angiography (ground mounted) : Requirements 1 Image intensifier having a size of 30 x 30 cm; : 2 CO2 capacity for analysis of shunts, renal perfusion; : 3 Ability to tilt the table in the longitudinal axis (for venography); : 4 Length of the examination table (possible 3 m); : 5 At least 3 monitors investigation, suspension apparatus for 4 Monitor for external findings; : 6 Technology roadmap; : 7 Overlay; : 8 Position of the table storage with automated retrieval; : 9 Integrated intravascular Doppler function; : 10th Evaluation cardiac catheterization and angiography (vessel size, lesion length, etc.
Since SCAI's 1992 publication of "Guidelines for Radiation Safety in the Cardiac Catheterization Laboratory," the average procedural radiation dose has increased due to more complex percutaneous coronary interventions (PCI) and electrophysiology procedures, emphasizing the need for a radiation safety program for all catheterization laboratories.
The use of cardiac catheterization ranged from a low of 29% to a high of 93%.
In collaboration with the cardiovascular disease leadership at Duke, these cardiac catheterization assets will allow us to strengthen cardiology care across North Carolina and continue to bring high tech cardiac catheterization services to patients in community hospitals across the state.
In a cardiac catheterization, a physician threads a catheter through an artery in the groin into the heart to evaluate that organ and surrounding blood vessels.
The plan also calls for adding a second cardiac catheterization laboratory along with holding rooms and recovery areas.
Cholesterol embolization syndrome occurs in 1%-2% of patients undergoing cardiac catheterization and often goes unrecognized, according to Dr.