Extracorporeal Shock Wave Lithotripsy (ESWL)

Extracorporeal Shock Wave Lithotripsy (ESWL) is a non-invasive medical procedure utilized for the treatment of kidney stones.

During this procedure—which typically requires no anesthesia—a specialized device known as a lithotripter generates and directs targeted shock waves through the skin and back muscles. These waves converge directly onto the stone, utilizing repetitive mechanical force to fragment it into smaller particles. These fragments are subsequently passed naturally through the urinary tract.

Indications: When is ESWL recommended?

ESWL is generally indicated for stones measuring less than 1.5 cm located within the kidney or, less frequently, the ureter.

Key Advantages of ESWL

• Outpatient Procedure: The treatment is performed in an ambulatory or day-hospital setting, allowing patients to return home shortly after the session without an overnight stay.

• Non-Invasive: Because it requires no incisions or endoscopic intervention, ESWL significantly reduces the risk of surgical complications, minimizes patient discomfort, and accelerates recovery times.

• Minimal Sedation: General anesthesia is not required; mild sedation is only utilized in rare instances.

• Broad Eligibility: The procedure is safe for both pediatric and geriatric patients.

• Repeatability: Should stones recur, the treatment can be safely repeated.

Pre-Procedure Diagnostics

Prior to undergoing ESWL, patients must complete a diagnostic workup including:

• Bloodwork and urinalysis (including a urine culture).

• Electrocardiogram (ECG).

• Renal ultrasound and abdominal X-ray.

• If further clinical detail is required, advanced imaging such as a Uro-CT scan may be performed.