Q. Will removal of kidney stone improve GFR?
Hi doctor, I am a 26 year old female. I have had a kidney stone in my right kidney for around eight months and now it is relatively large 22 mm. I have attached my report for your reference. I am suffering from recurrent kidney infections in the past couple years and had a stone in my left kidney when I was 15. I have attached my latest blood, urine and CT reports. I am concerned that I have CKD stage 1 from the GFR I calculated using the parameters in these reports. Could you please advise me on this? In general, does GFR improve after a stone is removed through lithotripsy or PCNL? I am scheduled for a lithotripsy in a week. Any information regarding if you think I have CKD and what prognosis will be very helpful?
Hi. I saw all your reports and your clinical details (attachment removed to protect patient identity). Your tendency for recurrent stone formation which needs to be evaluated. You need not to worry about eGFR (estimated glomerular filtration rate) currently as creatinine is normal. Removal of stone will mostly increase GFR. Most importantly after your lithotripsy please send the stone fragments which comes in urine for stone analysis. From that we will have a clear idea how to prevent their recurrence. Secondly, some general measures which include drink at least 3-4 liters of water and restrict salt in your diet up to 2 g in total. Do not take any calcium supplements and restrict or possibly avoid animal protein that is non-vegetarian food for some years. Take lots of water particularly in evening so that you at least wake up twice in night to pass urine. These all are general measures which really worked for many of my patients for future stone prevention. Do some blood tests like serum calcium, phosphorus, uric acid, bicarbonate and magnesium from any reliable laboratory and send for review. Revert back with the laboratory reports to a nephrologist online -->