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Radiology

Lithotripsy

Established in 1987, the HKSH Lithotripsy Centre enjoys a good reputation for its quality stone management services. Our patients are treated with Extracorporeal Shock Wave Lithotripsy, the best available technology for kidney and ureteral stone removal. 

Lithotripsy is a non-invasive medical procedure used to treat large kidney stones that cannot be passed through the urinary tract on their own. 

Our experienced urologists, radiologists and radiographers are dedicated to providing compassionate care with expertise in the use of state-of-the-art equipment.

About Extracorporeal Shock Wave Lithotripsy (ESWL)

ESWL is a non-invasive treatment for kidney and ureteral stones that are too large to pass through the urinary tract. During the ESWL procedure, a shock wave is delivered towards the stone after precise localisation and targeting under fluoroscopy or ultrasound guidance. The shock wave will break the stone into tiny fragments. The stone fragments are then passed out of the body spontaneously as sandy particles in urine.

Advantages

  • Safe
  • No need for surgery
  • Only mild sedation required
  • Short treatment time
  • Short recovery period
  • High success rate

Lithotripsy FAQ

Although ESWL is considered a safe and effective option for treating stones, there are still factors affecting posing impact on effectiveness. Certain health conditions can also increase the risk of complication from ESWL. 

The success rate of ESWL depends on:
 

  • Size of stone
  • Location of stone
  • Type of stone
  • Body type
     

Lithotripsy must not be performed during pregnancy

Under some medical conditions, ESWL is less effective or the risk on the patient is higher:

  • Cardiac pacemaker or metallic implants
  • Obesity
  • Chronic kidney infection
  • Bleeding disorders
  • Hypertension
  • Nephropathy
     

Before the procedure, you may be given an analgesic, sedative or anaesthesia medication. 

You will lie on your back or on your stomach on the lithotripter table, on top of a water-filled cushion. X-ray fluoroscopy or ultrasound will be used to locate the stone. Shockwave pulses will then be delivered into your body. The lithotripsy team will keep adjusting the target and energy level to optimise treatment outcome. You may hear a popping sound or feel a tapping sensation. 

The procedure usually takes about 60 to 90 minutes, depending on the size and location of the stone.

Scheduling an appointment for the first treatment session is usually through the referring doctor. Generally, patients can get an appointment within a few days. If required, patients will receive a reminder card after the first treatment session stating the date and time of any follow-up sessions. 

Patients who wish to schedule a new appointment or change an existing appointment may do so by contacting us.

Please be sure to bring with you any prior X-ray films of the urinary system and all other relevant data for assessment. Comparing current X-ray studies to prior ones is critical for proper image interpretation and can enhance the efficacy of treatment.

Thumbnail of Department of Diagnostic & Interventional Radiology

Happy Valley

Address:
1/F, Li Shu Pui Block,
Hong Kong Sanatorium & Hospital,
2 Village Road, Happy Valley, Hong Kong
Service hours:
Consultation by Appointment
Tel.:
(852) 2835 8900
Email:
[javascript protected email address]
Fax:
(852) 2892 7530
WhatsApp:
(852) 6052 2185
(For non-emergency cases)
Please provide name and contact number in text message in WhatsApp. Our Centre will contact you by phone to confirm. Do not send voice messages or graphics.
Thumbnail of Department of Diagnostic & Interventional Radiology

Island East

Address:
7/F, Li Shu Fong Building,
5 A Kung Ngam Village Road, Shau Kei Wan, Hong Kong
Service hours:
Consultation by Appointment
Tel.:
(852) 2917 1270
Email:
[javascript protected email address]
Fax:
(852) 2892 7407
WhatsApp:
(852) 2917 1270
(For non-emergency cases)
Please provide name and contact number in text message in WhatsApp. Our Centre will contact you by phone to confirm. Do not send voice messages or graphics.