Treatment
ESWL – Extracorporeal Shock Wave Lithotripsy uses highly focused electromagnetic waves projected from outside the body to crush kidney stones anywhere in the urinary system. The stone is usually reduced to sand-like particles that can be passed in the urine. Large stones may require more than one ESWL session. It can be used for patients of all age groups and those who have heart and breathing problems. Both X-Ray and USG controls are available on this machine. The positioning, focusing, and delivery of shock waves are all controlled by advanced-computerized system with safety cut-offs to prevent damage by human error. Patients need not stay in hospital and can go home the same day.
P.C.N.L. – Percutaneous Nephrolithotomy (PCNL) is the preferred technique for treating large stones (over 2 cm in diameter) within the kidney. It involves keyhole surgery performed through a 1 cm incision in the skin overlying the kidney (see diagram).
What are the Advantages?
Allows large or complicated stones to be treated in a minimally invasive fashion, where in the past this would have necessitated a large skin incision.
Hospital stay is 3-4 days and out of hospital recovery time is significantly shorter than traditional open surgery.
What are the Disadvantages?
Compared to traditional treatments of large complex stones, there are no disadvantages. Improved techniques and equipment have allowed this type of surgery to be safer than ever before.
U.R.S. – Ureteroscopy is where a long thin rigid telescope is introduced into the upper urinary tract via the bladder (see diagram below). The diameter of the instrument is less than 2 mm and allows visualization of the lower half of the ureter. A small instrument port allows introduction of micro-baskets and laser fibers (0.3 mm in diameter) to manipulate and fragment stones. It is used only to treat stones in the ureter, and cannot treat stones within the kidney (see flexible pyeloscopy info sheet for kidney stone treatment).
What are the main Advantages of this Approach?
Allows stone treatment without the need for any incision by using the urethral orifice as the entry point
A highly successful technique (over 95%)
Can be performed as day surgery
What are the main Disadvantages?
More invasive compared to shock wave lithotripsy
Small risk of damaging the ureter (0.5%)