Nephrostomy

Nephrostomy
Nephrostomy
Intervention
ICD-9-CM 55.02
MeSH D009403

A nephrostomy is an artificial opening created between the kidney and the skin which allows for the drainage of urine directly from the upper part of the urinary system (renal pelvis).

Contents

Uses

A nephrostomy is performed whenever a blockage keeps urine from passing from the kidneys, through the ureter and into the urinary bladder. Without another way for urine to drain, pressure would rise within the urinary system and the kidneys would be damaged.

The most common cause of blockage necessitating a nephrostomy is cancer, especially ovarian cancer and colon cancer. Nephrostomies may also be required to treat pyonephrosis and kidney stones.

Process

Nephrostomies are created by surgeons or interventional radiologists and typically consist of a catheter which pierces the skin and rests in the urinary tract. It is performed under ultrasound guidance, CT fluoroscopy or under image intensifier. Local anesthetic infiltration is used to numb the area where the needle would pass through to make the puncture on the kidney.

Newer technologies such as 3D fluoroscopy are being developed to aid in placement of these types of drainage tubes.[1]

Urine is collected in an external bag which can be emptied as often as necessary.

See also

References

  1. ^ Macaluso JN: Editorial Comment Urology March 2009 Vol. 73, Issue 3, 652-653, on Effectiveness of Three-dimensional Fluoroscopy in Percutaneous Nephrostomy: An Animal Model Study March 2009 Vol. 73, Issue 3, 649-652

Links


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Look at other dictionaries:

  • nephrostomy — Establishment of an opening between the collecting system of the kidney through its parenchyma to the exterior of the body; may be performed by surgical incision or be placed percutaneously. [nephro + G. stoma, mouth] percutaneous n …   Medical dictionary

  • nephrostomy — n. drainage of urine from the kidney by a tube (catheter) passing through the kidney via the skin surface. This is commonly used as a temporary procedure after operations on the kidney. Long term urine drainage by nephrostomy may be complicated… …   The new mediacal dictionary

  • nephrostomy catheter — a catheter used with percutaneous nephrostomy, as for drainage …   Medical dictionary

  • nephrostomy tube — a tube inserted into the renal pelvis for direct drainage of the urine through a percutaneous nephrostomy opening …   Medical dictionary

  • nephrostomy — ne·phros·to·my …   English syllables

  • nephrostomy — Surgery to make an opening from the outside of the body to the renal pelvis (part of the kidney that collects urine). This may be done to drain urine from a blocked kidney or blocked ureter into a bag outside the body. It may also be done to look …   English dictionary of cancer terms

  • nephrostomy — nə̇ˈfrästəmē, ne noun ( es) Etymology: International Scientific Vocabulary nephr + stomy (II) : the surgical formation of an opening between a kidney pelvis and the outside of the body …   Useful english dictionary

  • Percutaneous nephrostomy — is a surgical procedure in which the renal pelvis is punctured whilst using imaging as guidance. Images are obtained once an antegrade pyelogram (an injection of contrast), with a fine needle, has been performed. This contrast is used to show… …   Wikipedia

  • Нефростомия (Nephrostomy) — дренирование мочи из почки с помощью специальной трубочки (катетера), вводимого в почку через прокол задней брюшной стенки. Часто нефростомия является временной мерой после операций на почке. Длительное дренирование почки с помощью нефростомии… …   Медицинские термины

  • НЕФРОСТОМИЯ — (nephrostomy) дренирование мочи из почки с помощью специальной трубочки (катетера), вводимого в почку через прокол задней брюшной стенки. Часто нефростомия является временной мерой после операций на почке. Длительное дренирование почки с помощью… …   Толковый словарь по медицине

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