Renal Stent

A renal stent is designed for the use in treatment of kidney problems. Renal stents are of various types. One of the types of renal stent is designed to provide treatment for blockages in the ureter. Ureter is the tube which carries the urine from the kidney to the urinary bladder. Stent is the name given to an artificial tube which is inserted into the natural passage of the body. The stent is placed in the body to prevent or counteract a localized flow constriction.

Renal stent has coils on both its ends; these ensure that the stent will not drift from its place. When a doctor suspects that the patient needs a renal stent then a complete medical imaging study is conducted. This is done so as to look at the blood vessels which surround the kidneys. Also, an angiogram might be performed. Angiogram makes the use of tracer dyes to follow the path of flow of blood through the area.
<img class="aligncenter size-full wp-image-53" title="Renal Stent" src="http://renalstent.org/wp-content/uploads/2011/11/Renal-Stent.jpg" alt="Renal Stent" width="423" height="320″ />
Getting a renal stent placed can be quite painful. To make the patients comfortable during the procedure anesthesia is administered. Once the renal stent has been placed then the patients are required to take special care. Before one goes for the placement of renal stent one must make sure that their doctor is completely familiar with the whole medical history. This is to ensure that there are no conditions which contradict the placement of renal stent and thus make it inadvisable. The patients should also have the complete information about what kind of stent is being used. The patients should ask their doctors about instructions on how proper care is to be taken.

For instance, if a renal stent is placed in the renal artery then the patient might have to take some special medication which will prevent the formation of blood clots around the stent in the artery. Regular and periodic examination of the patient is also very essential. The importance of such examinations is to ensure that the stent is in place and has not drifted away. Therefore, the patients should be very careful after placement of renal stents.

Obstructive renovascular diseases are highly prevalent these days especially in those who suffer from hypertension and peripheral vascular disease. The effect of using renal stents in patients on the subsequent renal function and on the need of undergoing dialysis in patients suffering from atherosclerotic renovascular disease and renal impairment is of great economic and clinical concern.

There are a number of publications about the technical success, low rates of complication and the rates of restenosis after the use of renal stents. However, all the favorable reports have not been able to demonstrate the ability of revascularization to salvage or improve the function of the treated kidney. A major hindrance to the determination of the direct effect of the treatment with renal stent on the treated kidney is the lack of availability of simple methods to assess how each kidney is performing in the normally paired organ system.

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