catheter /cath·e·ter/ (kath´ĕ-ter)
Swan-Ganz catheter
Swan-Ganz catheter [swahn-gahnts]
1. a tubular, flexible surgical instrument that is inserted into a cavity of the body to withdraw or introduce fluid.
2. urethral c. 
)
Catheter inserted into the abdomen.
angiographic catheter one through which a contrast medium is injected for visualization of the vascular system of an organ.
atherectomy catheter one with a rotating cutter and a collecting chamber for debris, used for atherectomy and endarterectomy and inserted under radiographic guidance.
balloon catheter one whose tip has an inflatable balloon that holds the catheter in place or can dilate the lumen of a vessel, such as in angioplastic procedures.
cardiac catheter a long, fine catheter designed for passage, usually through a peripheral blood vessel, into the chambers of the heart under radiographic control.
cardiac catheter-microphone phonocatheter.
central venous catheter a long, fine catheter introduced via a large vein into the superior vena cava or right atrium for administration of parenteral fluids or medications or for measurement of central venous pressure.
condom catheter an external urinary collection device that fits over the penis like a condom; used in the management of urinary incontinence.
DeLee catheter one used to suction meconium and amniotic debris from the nasopharynx and oropharynx of neonates.
double-channel catheter , double-lumen catheter one with two channels, one for injection and the other for fluid removal.
elbowed catheter a urethral catheter with a sharp bend near the beak, used to get around an enlarged prostate.
electrode catheter a cardiac catheter containing electrodes; it may be used to pace the heart or to deliver high-energy shocks.
female catheter a short urethral catheter for passage through the female urethra.
fluid-filled catheter an intravascular catheter connected by a saline-filled tube to an external pressure transducer; used to measure intravascular pressure.
Foley catheter an indwelling catheter retained in the bladder by a balloon inflated with air or liquid.
Gouley catheter a solid, curved steel urethral catheter grooved on its inferior surface so that it can pass over a guide through a urethral stricture.
Gruentzig balloon catheter a flexible balloon catheter with a short guidewire fixed to the tip, used for dilation of arterial stenoses.
indwelling catheter one held in position in the urethra.
pacing catheter a cardiac catheter containing one or more electrodes on pacing wires; used as a temporary cardiac pacing lead.
prostatic catheter elbowed c.
self-retaining catheter indwelling c.
snare catheter one designed to remove intracardiac catheter fragments introduced iatrogenically.
Swan-Ganz catheter a soft, flow-directed catheter with a balloon at the tip for measuring pulmonary arterial pressures.
Tenckhoff catheter any of several types commonly used in peritoneal dialysis, having end and side holes and one or more extraperitoneal felt cuffs making a bacteria-tight seal.
toposcopic catheter a miniature catheter that can pass through narrow, tortuous vessels to convey chemotherapy directly to specific sites.
two-way catheter double-lumen c.
ureteral catheter one inserted into the ureter, either through the urethra and bladder or posteriorly via the kidney.
urethral catheter one inserted through the urethra into the urinary bladder.
winged catheter a urethral catheter with two projections on the end to retain it in place.
Swan-Ganz catheter (sw n g nz)n. A soft catheter with an expandable balloon tip that is used for measuring blood pressure in the pulmonary artery. |
Swan-Ganz catheter
[swän′ ganz′]
Etymology: Harold J.C. Swan, American physician, b. 1922; William Ganz, American cardiologist, b. 1919; Gk, katheter, something lowered
a long, thin cardiac catheter with a tiny balloon at the tip. It is used to determine left ventricular function by measuring pulmonary capillary wedge pressure.
Swan-Ganz catheter [swahn-gahnts]
a soft, flow-directed catheter with a balloon at the tip for measuring pulmonary arterial pressures, right atrial pressures, left atrial pressure, reflected left ventricular end-diastolic pressure, and cardiac output. It is introduced into an internal jugular vein or subclavian vein and is guided by blood flow into the subclavian vein, the superior vena cava, through the right atrium and ventricle, and into the pulmonary artery where it floats freely with the movement of blood. A monitor attached to the distal lumen port provides a reading of pulmonary artery pressure and pulmonary capillary wedge pressure, which is actually a reading of pressure in the left side of the heart.
The catheter permits evaluation of cardiac function by assessing the effectiveness of right and left pumping action of the heart and providing a quantitative measurement of cardiac output, and by allowing for sampling of mixed arterial-venous oxygen levels and calculation of differences between the two. Swan-Ganz catheters have a proximal lumen opening that is situated in the right atrium or superior vena cava, permitting monitoring of central venous pressure. The proximal lumen port is used for administration of drugs and fluids.
The Swan-Ganz catheter provides vital information in cases of heart failure resulting from myocardial infarction and cardiogenic shock, in the care of patients critically ill from hypovolemic shock, and in the diagnosis and treatment of cardiac tamponade. It also is useful in preventive monitoring to avoid overhydration and pulmonary edema, and often is inserted preoperatively in patients undergoing preload and corrective procedures and open heart surgery in order to monitor response to anesthesia during surgery. The catheter is used diagnostically to inject radiopaque dye during angiography to confirm a diagnosis of pulmonary embolism.
Care of the patient with a Swan-Ganz catheter requires extensive instruction and supervised experience in intensive care nursing.
The catheter permits evaluation of cardiac function by assessing the effectiveness of right and left pumping action of the heart and providing a quantitative measurement of cardiac output, and by allowing for sampling of mixed arterial-venous oxygen levels and calculation of differences between the two. Swan-Ganz catheters have a proximal lumen opening that is situated in the right atrium or superior vena cava, permitting monitoring of central venous pressure. The proximal lumen port is used for administration of drugs and fluids.
The Swan-Ganz catheter provides vital information in cases of heart failure resulting from myocardial infarction and cardiogenic shock, in the care of patients critically ill from hypovolemic shock, and in the diagnosis and treatment of cardiac tamponade. It also is useful in preventive monitoring to avoid overhydration and pulmonary edema, and often is inserted preoperatively in patients undergoing preload and corrective procedures and open heart surgery in order to monitor response to anesthesia during surgery. The catheter is used diagnostically to inject radiopaque dye during angiography to confirm a diagnosis of pulmonary embolism.
Care of the patient with a Swan-Ganz catheter requires extensive instruction and supervised experience in intensive care nursing.
Swan-Ganz catheter. From Polaski and Tatro, 1996.
Swan-Ganz catheter
a soft, flow-directed catheter with a balloon at the tip for measuring pulmonary arterial pressures, right atrial pressures, left atrial pressure, and reflected left ventricular end-diastolic pressure.
The catheter permits evaluation of cardiac function by assessing the effectiveness of right and left pumping action of the heart and providing a quantitative measurement of cardiac output, and by allowing for sampling of mixed arterial-venous oxygen levels and calculation of differences between the two.
Swan-Ganz catheter
Cardiology A flexible balloon-tipped device placed in the pulmonary artery to monitor hemodynamics of critically ill Pts
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