Laser Lithotripsy
What is Laser Lithotripsy?
Laser lithotripsy is a minimally invasive procedure used to treat stones in the kidneys, ureters, or bladder. During the procedure, a fine laser fibre is passed through a small telescope to break urinary stones into tiny fragments that can either be removed or passed naturally in the urine.
The most commonly used laser is the holmium:YAG laser, which is highly effective at fragmenting stones of different sizes and compositions. Laser lithotripsy is often performed as part of a ureteroscopy or cystoscopy and allows many patients to avoid more invasive surgery.
What are the Benefits of Laser Lithotripsy?
Laser lithotripsy is a highly effective treatment for urinary stones and offers several advantages over traditional surgery.
Benefits include:
- Minimally invasive with no external incisions
- Effectively treats most types of urinary stones
- High stone clearance rates
- Suitable for stones in the kidney, ureter, or bladder
- Reduced recovery time compared with open surgery
- Less postoperative discomfort
- Short hospital stay or day-case procedure for many patients
- Can treat stones that are too large or too hard to pass naturally
When is Laser Lithotripsy Recommended?
Your urologist may recommend laser lithotripsy when urinary stones are causing symptoms or are unlikely to pass without treatment.
It may be recommended for:
- Kidney stones causing pain or obstruction
- Ureteric stones that have not passed naturally
- Bladder stones
- Stones causing recurrent urinary tract infections
- Persistent blood in the urine due to stones
- Stones unsuitable for shockwave lithotripsy (ESWL)
- Larger stones requiring fragmentation before removal
- Patients requiring prompt relief of urinary obstruction
The most appropriate treatment depends on the stone's size, location, composition, and your overall health.
What does Preparation for Laser Lithotripsy Involve?
Before the procedure, your urologist will assess your urinary tract and determine the best treatment approach.
Preparation may include:
- Medical history and physical examination
- Blood and urine tests
- Imaging such as CT scan, ultrasound, or X-ray
- Review of current medications, including blood-thinning medicines
- Treatment of any urinary tract infection before surgery
- Fasting before general anaesthetic
- Discussion of the procedure, possible need for a ureteric stent, and expected recovery
You will also receive instructions about returning home and arranging follow-up care.
How is Laser Lithotripsy Performed?
Laser lithotripsy is usually performed under general anaesthetic and typically takes between 30 and 90 minutes, depending on the number, size, and location of the stones.
The surgeon inserts a thin telescope through the urethra into the bladder and, if necessary, into the ureter or kidney using a specialised instrument called a ureteroscope. Because the procedure follows the natural urinary tract, no external incisions are required.
Once the stone is identified, a very fine laser fibre is passed through the telescope until it touches the stone. Short bursts of laser energy are delivered to fragment the stone into tiny pieces or fine dust, a technique often referred to as "dusting." Larger fragments may be removed using small retrieval baskets, while smaller particles are left to pass naturally in the urine over the following days or weeks.
At the end of the procedure, your surgeon may place a temporary ureteric stent to keep the ureter open, reduce swelling, and allow urine to drain freely while healing occurs. The stent is usually removed during a follow-up appointment.
What to Expect during Recovery after Laser Lithotripsy?
Most patients return home on the same day or after an overnight stay.
During recovery, you may experience:
- Mild burning when passing urine
- Blood in the urine for several days
- Increased urinary frequency or urgency
- Mild flank or bladder discomfort
- Passage of small stone fragments
- Temporary discomfort if a ureteric stent has been inserted
Drinking plenty of fluids helps flush remaining stone fragments from the urinary tract. Most patients return to normal daily activities within several days, although strenuous exercise should be avoided until advised by your healthcare team.
Follow-up imaging may be arranged to confirm that the urinary tract is free of significant residual stones.
What are the Risks and Complications of Laser Lithotripsy?
Laser lithotripsy is a safe and well-established procedure, but all surgical treatments carry some potential risks.
Possible complications include:
- Urinary tract infection
- Blood in the urine
- Temporary burning during urination
- Pain from passing stone fragments
- Ureteric swelling or temporary blockage
- Injury to the ureter or kidney, although uncommon
- Need for temporary ureteric stenting
- Residual stone fragments requiring further treatment
- Rare ureteric stricture (narrowing) during healing
- Recurrence of urinary stones over time
Your urologist will explain whether laser lithotripsy is the most appropriate treatment for your urinary stones and discuss the expected benefits, recovery, and any potential risks before the procedure.