What is RIRS?
RIRS is a minimally invasive procedure to examine the inside of the kidney (renal calyces) using a flexible surgical telescope (flexible ureteroscope).
When do you need this procedure?
To treat and remove kidney urinary stones including those that failed ESWL treatment. To examine the kidney and obtain tissue sample (biopsy) to exclude tumours.
How is the procedure done?
Once you are under anaesthesia, the doctor enters your bladder with the flexible scope through the urethra without making an incision in your body. From there, the flexible scope is advanced into the kidney with the aid of an access sheath.
The stone is pulled out using a special stone basket. If the stone is too big to be removed completely, it can be fragmented using laser, and the stone fragments are removed.
Your doctor may need to place a double-J stent (tube) in the ureter to make sure urine can flow through the urinary system. The stent will be removed when your urine flow is back to normal. This can take anywhere between several days and a few weeks.
What are the risks of the procedure?
The success rate is very high, risks of complications are very low. Risks may include:
What should I expect after the procedure?
You may experience some urgency and burning sensation during and after urination.
Do drink lots of fluid to minimize this burning sensation.
Slightly blood stained urine is also common for several days after the procedure particularly if a biopsy or laser lithotripsy was performed.
Most patients will be discharged the same day or after an overnight stay.
Please return if:
Send us an enquiry
Contact Information
Ravenna Urology Clinic
6 Napier Road #07-12, Gleneagles Medical Centre,
Singapore 258499
T +65 64797822
F +65 64793989
24-hour Service: +65 65358833
Opening Hours
Mon-Fri 9 am - 5 pm
Sat 9 am - 12:30 pm
Closed on Sun and Public holidays
Website maintained by PAA.
All rights reserved 2014 ~ 2025.
Retrograde Intrarenal Surgery (RIRS)
What is RIRS?
RIRS is a minimally invasive procedure to examine the inside of the kidney (renal calyces) using a flexible surgical telescope (flexible ureteroscope).
When do you need this procedure?
To treat and remove kidney urinary stones including those that failed ESWL treatment. To examine the kidney and obtain tissue sample (biopsy) to exclude tumours.
How is the procedure done?
Once you are under anaesthesia, the doctor enters your bladder with the flexible scope through the urethra without making an incision in your body. From there, the flexible scope is advanced into the kidney with the aid of an access sheath.
The stone is pulled out using a special stone basket. If the stone is too big to be removed completely, it can be fragmented using laser, and the stone fragments are removed.
Your doctor may need to place a double-J stent (tube) in the ureter to make sure urine can flow through the urinary system. The stent will be removed when your urine flow is back to normal. This can take anywhere between several days and a few weeks.
What are the risks of the procedure?
The success rate is very high, risks of complications are very low. Risks may include:
What should I expect after the procedure?
You may experience some urgency and burning sensation during and after urination.
Do drink lots of fluid to minimize this burning sensation.
Slightly blood stained urine is also common for several days after the procedure particularly if a biopsy or laser lithotripsy was performed.
Most patients will be discharged the same day or after an overnight stay.
Please return if:
Send us an enquiry
Contact Information
Opening Hours
Ravenna Urology Clinic
6 Napier Road #07-12, Gleneagles Medical Centre,
Singapore 258499
T +65 64797822
F +65 64793989
24-hour Service: +65 65358833
Mon-Fri 9 am - 5 pm
Sat 9 am - 12:30 pm
Closed on Sun and Public holidays
Website maintained by PAA.
All rights reserved 2014 ~ 2025.
Retrograde Intrarenal Surgery (RIRS)
What is RIRS?
RIRS is a minimally invasive procedure to examine the inside of the kidney (renal calyces) using a flexible surgical telescope (flexible ureteroscope).
When do you need this procedure?
To treat and remove kidney urinary stones including those that failed ESWL treatment. To examine the kidney and obtain tissue sample (biopsy) to exclude tumours.
How is the procedure done?
Once you are under anaesthesia, the doctor enters your bladder with the flexible scope through the urethra without making an incision in your body. From there, the flexible scope is advanced into the kidney with the aid of an access sheath.
The stone is pulled out using a special stone basket. If the stone is too big to be removed completely, it can be fragmented using laser, and the stone fragments are removed.
Your doctor may need to place a double-J stent (tube) in the ureter to make sure urine can flow through the urinary system. The stent will be removed when your urine flow is back to normal. This can take anywhere between several days and a few weeks.
What are the risks of the procedure?
The success rate is very high, risks of complications are very low. Risks may include:
What should I expect after the procedure?
You may experience some urgency and burning sensation during and after urination.
Do drink lots of fluid to minimize this burning sensation.
Slightly blood stained urine is also common for several days after the procedure particularly if a biopsy or laser lithotripsy was performed.
Most patients will be discharged the same day or after an overnight stay.
Please return if:
Send us an enquiry
Contact Information
Ravenna Urology Clinic
6 Napier Road #07-12, Gleneagles Medical Centre,
Singapore 258499
T +65 64797822
F +65 64793989
24-hour Service: +65 65358833
Opening Hours
Mon-Fri 9 am - 5 pm
Sat 9 am - 12:30 pm
Closed on Sun and Public holidays
Send us an enquiry
Contact Information
Ravenna Urology Clinic
6 Napier Road #07-12, Gleneagles Medical Centre,
Singapore 258499
T +65 64797822
F +65 64793989
24-hour Service: +65 65358833
Opening Hours
Mon-Fri 9 am - 5 pm
Sat 9 am - 12:30 pm
Closed on Sun and Public holidays
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