What Is ESWL?
Extracorporeal shock wave lithotripsy is a non-invasive procedure that uses focused shock waves to break kidney stones into smaller pieces that can pass naturally in the urine. The stone is located using ultrasound or X-ray imaging, and shock waves are delivered through the skin without any incisions. This was the first widely available treatment for kidney stones and remains one of the most effective options.
Advantages of ESWL
- Non-invasive — no incisions, performed outside the body
- No anesthesia required — local anesthesia often sufficient
- Minimal recovery time — return to normal activities quickly
- High success rate — 85-90% of stones fragment successfully
- Outpatient procedure — same-day treatment at hospital or surgical center
- Proven track record — decades of clinical experience
When Is ESWL Recommended?
ESWL is ideal for kidney stones in the upper ureter or kidney that are 5-20mm in size and composed of suitable stone material. Dr. Libby will evaluate stone size, location, composition, and your anatomy to determine if ESWL is the best choice. Some stones are better treated with ureteroscopy or observation depending on symptoms and risk factors.
What to Expect
Before ESWL
Imaging studies (ultrasound or CT scan) confirm stone size and location. You'll fast for a few hours before the procedure. Dr. Libby will discuss sedation options and what to expect afterward. Arrange for someone to drive you home.
During the Procedure
You lie on a special table, and ultrasound or fluoroscopy locates the stone precisely. Shock waves are then delivered in pulses (typically 1,500-2,000 shocks). The procedure takes 30-60 minutes. You'll feel pressure with each shock but typically minimal pain with adequate anesthesia.
Recovery and Results
You go home after observation. You may have mild discomfort or blood in your urine for a few days. Drink plenty of fluids to help stone fragments pass. Most men return to normal activities within a few days. Stone fragments typically pass over 4-6 weeks, though some may take longer. Follow-up imaging confirms successful fragmentation.
Why Choose Riverstone Urology for ESWL?
Dr. Libby carefully selects patients who will benefit most from ESWL and provides comprehensive follow-up to ensure success. If you have a kidney stone and want non-invasive treatment, schedule an evaluation to see if ESWL is right for you.