| NPC | nasopharyngeal carcinoma; near point of convergence; nodal premature contractions; nonparenchymal [l... |
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| NPCa | nasopharyngeal carcinoma |
| NP | cult nasopharyngeal culture |
| NPF | nasopharyngeal fiberscope; National Parkinson Foundation; National Pharmaceutical Foundation; Nation... |
| Pg | nasopharyngeal electrode placement in electroencephalography; gastric pressure; pogonion; pregnancy,... |
| brush catheter | A ureteral catheter with a finely bristled brush tip that is endoscopically passed into the ureter or renal pelvis and by gentle to-and-fro movement brushes cells from the surface of suspected tumours. (05 Mar 2000) |
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| cardiac catheter | <cardiology> A catheter that can be passed into the heart through a vein or artery, to withdraw samples of blood, measure pressures within the heart's chambers or great vessels, and inject contrast media. It is used mainly in the diagnosis and evaluation of congenital, rheumatic, and coronary artery lesions and to evaluate systolic and diastolic cardiac function. Synonym: cardiac catheter. (05 Mar 2000) |
| pacing catheter | A cardiac catheter with one or more electrodes at its tip which can be used to artificially pace the heart. (05 Mar 2000) |
| Malecot catheter | A two-or four-winged catheter. (05 Mar 2000) |
| vertebrated catheter | A catheter made of several segments moving on each other like the links of a chain. (05 Mar 2000) |
| catheter | <apparatus> A tubular, flexible, surgical instrument for withdrawing fluids from (or introducing fluids into) a cavity of the body, especially one for introduction into the bladder through the urethra for the withdraw of urine. Origin: Gr. Katheter (18 Nov 1997) |
| catheter ablation | Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (dc-shock) or alternating current at radiofrequencies (usually 750 khz). The technique is used most often to ablate the av junction and/or accessory pathways in order to interrupt av conduction and produce av block in the treatment of various tachyarrhythmias. (12 Dec 1998) |
| catheter a demeure | An obsolete term for a catheter that is retained for a considerable period in the urethra. Origin: Fr. Demeurer, to dwell (05 Mar 2000) |
| catheter coude | A catheter with an angular bend near the beak; used to rise over prostatic obstruction. Synonym: catheter coude, prostatic catheter. (05 Mar 2000) |
| catheter fever | An elevation of temperature, usually slight and transitory, following catheterization of the urethra, or the passage of blood clots, gravel, or a calculus. Synonym: catheter fever, urethral fever. (05 Mar 2000) |
| catheter gauge | A metal plate with holes of graduated diameter used to determine the size of a catheter. (05 Mar 2000) |
| catheter guide | A flexible metallic wire or thin sound over which a catheter is passed to advance it into its proper position, as in a blood vessel or the urethra. See: stylet. (05 Mar 2000) |
| central venous catheter | <equipment> Small, flexible plastic tube inserted into the large vein above the heart, through which drugs and blood products can be given and blood samples withdrawn painlessly. Synonym: central line, Hickman catheter. (12 Jan 1998) |
| Gouley's catheter | A solid curved steel instrument grooved on its inferior surface so that it can be passed over a guide through a urethral stricture. (05 Mar 2000) |
| peripherally inserted central catheter | <equipment> A catheter inserted into an arm vein and used for periods of up to three months. This catheter does not need to be surgically implanted and can be inserted at home by a trained nurse. (09 Oct 1997) |