KIDNEY STENT

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Kidney Stents : 

Kidney Stents

What Is A Kidney Stent? : 

What Is A Kidney Stent? Kidney Stent is also called as Urethral Stent Thin tube inserted into the ureter to prevent or treat obstruction Length varies between 24 to 30 cm A JJ stent, double J stent or pig-tail stent The top end coils in the kidney,lower end coils inside the bladder Different diameters or gauges

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Kidney Stents

Use Of A Kidney Stent : 

Use Of A Kidney Stent Allow the flow of urine through blocked ureter out of the body. Common causes are : Kidney Stone Narrowing of the ureter Temporary, like following an operation Because of disease of the prostate or tumors of the urinary system Due to obstruction, pressure builds up within the kidney which can cause kidney damage Urine also can get stagnated which can lead to infection To overcome these problems, a kidney stent is used .

Inserting a Kidney Stent : 

Inserting a Kidney Stent The patient is usually under general anesthetic before inserting a stent. The stent is usually inserted with an aid of Cystoscope. The stent is then placed and its correct position is then checked by taking an X-ray.

Cystoscope : 

Cystoscope

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Inserted Stent seen in a X-ray

Post-Surgery Complications and Limitations : 

Post-Surgery Complications and Limitations Dislocation, infection and blockage by encrustation. Other complication include increased urgency and frequency of urine, blood in the urine, leakage of urine, discomfort in the kidney, bladder or groin, and pain in the kidneys. Stents often have a thread that passes through the urethra and remains outside the body, this may cause irritation of the urethra. If the thread is caught or pulled, the stent may get dislodged. The stent may cause some discomfort during strenuous physical activity

Kidney Stent having an external thread : 

Kidney Stent having an external thread

Precautions : 

Precautions It is essential for the patient to drink at least 1.5 to 2 lts. of water per day. This will help to minimize the risk of infection and will reduce the amount of blood in the urine. Painkillers can be taken to get relief from pain. If the thread is externally placed, then more care must be taken so that the stent does not get dislodged.

Removal of the stent : 

Removal of the stent Once the underlying condition that caused blockage of the ureter is resolved and the ureter is healed, the stent can be removed. The Kidney Stent removal is a short process which is done by a cystoscope, usually under local anesthesia. If the stent has an external placed thread, the doctors can remove such stents by just pulling the thread.

Kidney Stent After Removal : 

Kidney Stent After Removal

Case Study Reports : 

Case Study Reports CASE 1:USE OF A HOLMIUM LASER TO TREAT A FORGOTTEN DOUBLE-J STENT WITH WHOLE STENT ENCRUSTATIONS A case of a forgotten Double-J stent which had been placed 24 months previously in a 62 year old man was reported with a complain of flank soreness and recurrent urinary tract infection. Radiography of the kidney, ureter and bladder, and computed tomography demonstrated stone encrustation over the whole stent. Crstolithotripsy and ureterorenoscopic lithotripsy with holmium laser were performed to remove the stent. The first case of removal of the intact stent was successful.

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CASE 2: To review morbidity and late complications of urethral stent insertion and to specifically evaluate hydronephrosis as a radiologic finding of obstruction in the presence of an indwelling ureteral stent 110 stented kidneys in a group of 90 patients were studied It was followed by plain abdominal X-ray 30 days after stenting Further ultrasound and plain film was performed every 3 months In 11 of 110 cases (10%) there was stent fragmentation and in 9 (8.2%) stent migration. In 10 cases (9.1%), there was no change in the severity of the hydronephrosis, but because of flank pain or urinary tract infection with fever, the stents had to be removed. In 6 cases (5.4%) hydronephrosis developed or worsened after stenting. Of the 110 urethral stents, 32.7% had to be removed because of late complications.

The End : 

The End

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