Balloon Catheter: From 1 Different Sources
A flexible tube with a balloon at its tip, which, when inflated, keeps the tube in place or applies pressure to an organ or vessel.
One type is used to drain urine from the bladder (see catheterization, urinary).
Balloon catheters are sometimes used to expand narrowed arteries (balloon angioplasty).
They may also be used to control bleeding oesophageal varices before surgery.
(See also CATHETERS.) A ?exible tube with a double lumen and a small balloon at its distal end. It is introduced into a vein in the arm and advanced until the end of the catheter is in the right atrium (see HEART). The balloon is then in?ated with air through one lumen and this enables the bloodstream to propel the catheter through the right ventricle to the pulmonary artery. The balloon is de?ated and the catheter can then record the pulmonary artery pressure. When the balloon is in?ated, the tip is isolated from the pulmonary artery and measures the left atrial pressure. These measurements are important in the management of patients with circulatory failure, as under these circumstances the central venous pressure or the right atrial pressure is an unreliable guide to ?uid-replacement.... swan-ganz catheter
A flexible tube inserted into the body to drain or introduce fluids or carry out other functions. Catheters are commonly used to drain urine from the bladder (see catheterization, urinary). Other types are used to investigate the condition of the heart (see catheterization, cardiac), to widen obstructed blood vessels, or to control bleeding. (See also balloon catheter.)... catheter
A flexible plastic tube, also known as a skin-tunnelled catheter, that is passed through the chest and inserted into the subclavian vein, which leads to the heart. It is often used in people who have leukaemia or other cancers and need regular chemotherapy and blood tests. The catheter allows drugs to be injected directly into the bloodstream and blood samples to be obtained easily. The catheter is inserted, under local anaesthesia. It can remain in position for months; the external end is plugged when not in use.... hickman catheter
A diagnostic procedure in which a tube is inserted into a blood vessel under local anaesthetic and threaded through to the chambers of the heart to monitor blood ?ow, blood pressure, blood chemistry and the output of the heart, and to take a sample of heart tissue. The technique is used to diagnose congenital heart disease and coronary artery disease. Another application is in the diagnosis and treatment of valvular disease in the heart.... cardiac catheterisation
A diagnostic test in which a fine, sterile catheter is introduced into the heart via a blood vessel. It is used to diagnose and assess the extent of congenital heart disease (see heart disease, congenital) and coronary artery disease, and to diagnose and treat some disorders of the heart valves (see valvuloplasty). During the procedure, the pressure within the heart’s chambers can be measured, samples of blood and tissue can be taken, and a radiopaque substance can be injected to allow the heart’s cavities to be X-rayed.... catheterization, cardiac
Insertion of a sterile catheter into the bladder to drain urine. The procedure is used when a person is unable to empty the bladder normally or is incontinent (see incontinence, urinary). Urinary catheterization is also used during operations, in bladder function tests such as cystometry and cystourethrography, and to monitor urine production in the critically ill.... catheterization, urinary
see Rusch catheter. [Y. Bakri (21st century), US obstetrician]... bakri balloon
n. an inflatable plastic cylinder of variable size that is mounted on a thin tube and used for dilating narrow areas (*stenosis) in blood vessels (see angioplasty), in the alimentary tract (*strictures), or in the urinary tract (see endopyelotomy).... balloon
a surgical procedure used to treat dysfunction of the *Eustachian tube. A small balloon is inserted from the *nasopharynx into the Eustachian tube in a deflated state under endoscopic control. It is then inflated to widen the Eustachian tube before being deflated and removed.... balloon eustachian tuboplasty
a surgical procedure to open or enlarge a blocked ostium of the *paranasal sinuses in patients with chronic *rhinosinusitis. A small balloon is inserted into the ostium in a deflated state under endoscopic control. It is then inflated to enlarge the ostium and finally deflated and removed.... balloon sinuplasty
n. the introduction of a *catheter into a hollow organ or vessel. In urethral catheterization a catheter is introduced into the bladder through the urethra to relieve obstruction to the outflow of urine (see also intermittent self-catheterization). Catheters can also be passed above the pubis through the anterior abdominal wall (suprapubic catheterization) directly into a full bladder if urethral catheterization is not possible. Cardiac catheterization entails the introduction of special catheters into the chambers of the heart. This allows the measurement of pressures in the chambers and pressure gradients across the heart valves, as well as the injection of contrast medium for visualization of structures using X-rays (see coronary angiography). Vascular catheterization enables the introduction into the arteries or veins of: (1) contrast medium for angiography or venography; (2) drugs to constrict or expand vessels or to dissolve a thrombus (see thrombolysis); (3) metal coils or other solid materials to block bleeding vessels or to thrombose *aneurysms (see embolization); (4) devices for monitoring pressures within important vessels (e.g. *Swan-Ganz catheters for monitoring pulmonary artery pressure in critically ill patients); or (5) balloons and *stents to relieve obstruction.... catheterization
an intravenous catheter for insertion directly into a large vein, most commonly the subclavian vein, during its passage under the clavicle, or the jugular in the neck. Such catheters can also be inserted into the femoral vein at the groin. They enable intravenous drugs and fluids to be given and intravenous pressures to be measured, which is often useful during operations or in intensive care. Central venous catheters must be inserted under strictly sterile conditions using a local anaesthetic.... central venous catheter
the time in minutes between a patient with S–T elevation *myocardial infarction reaching the hospital door and inflation of a balloon or other interventional device in the occluded coronary artery. It is a key indicator of the timeliness of an emergency *percutaneous coronary intervention service.... door to balloon time
see mitral stenosis; valvuloplasty.... inoue balloon
(clean intermittent self-catheterization, ISC, CISC) a procedure in which the patient periodically passes a disposable catheter through the urethra into the bladder for the purpose of emptying it of urine. It is increasingly used in the management of patients of both sexes (including children) with chronic *retention and large residual urine volumes, often due to *neuropathic bladder. ISC may prevent back pressure and dilatation of the upper urinary tract with consequent infection and incontinence.... intermittent self-catheterization
a catheter traditionally used for prostate surgery but now successful in the management of *postpartum haemorrhage as an alternative to hysterectomy. The catheter is inserted into the uterine cavity and the balloon filled passively with up to 500 ml warm saline to achieve a *tamponade effect. An alternative is the Bakri balloon, which has been designed specifically for obstetric use.... rusch catheter
a catheter passed through the abdominal wall above the pubis, usually into a very enlarged bladder with urinary retention. Usually, suprapubic *catheterization is performed only if it is not possible to perform urethral catheterization.... suprapubic catheter
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