I have PKD. How often do I need imaging to track changes?

Question

Hello doctor,

I am a 51-year-old male who was recently diagnosed with polycystic kidney disease after having an ultrasound for back pain. My estimated glomerular filtration rate is 62 milliliters per minute per 1.73 square meters, and my serum creatinine level is 1.4 milligrams per deciliter.

I am worried about the potential rate of progression, especially since my father developed kidney failure in his 60s, and I have a few questions,

Should I be on any specific medication now to slow cyst growth, or is it mostly about controlling blood pressure?
I have read about Tolvaptan, but I'm not sure if it is suitable for early stages like mine.
How often should imaging or labs be repeated to track changes?
Is there any diet that helps kidney health, especially when cysts are already present?

Kindly suggest.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

I completely understand your concern, especially given your family history of kidney failure. Based on your current kidney function, an estimated glomerular filtration rate of 62 milliliters per minute per 1.73 square meters and serum creatinine of 1.4 milligrams per deciliter indicate chronic kidney disease stage 2, which is considered an early stage.

In polycystic kidney disease, the rate of progression varies widely between individuals, and while family history can offer some clues, it is not the sole predictor. Regarding treatment, blood pressure control remains the most proven and important measure to slow the progression of polycystic kidney disease.

The target blood pressure is usually less than 130/80 millimeters of mercury, often achieved with angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, unless these medications are contraindicated.

Tolvaptan may be considered to slow cyst growth in patients suspected to have more rapid progression, but its use in the early stage depends on imaging findings and requires careful discussion with a nephrologist.

To ensure proper monitoring of your condition, you should keep track of the following:

Estimated glomerular filtration rate, serum creatinine, electrolytes, and urine protein should be checked every six to 12 months.
Ultrasound or magnetic resonance imaging every one to three years to monitor kidney size and total kidney volume.
Blood pressure should be measured regularly at home and reviewed during each clinic visit.

To maintain overall kidney health and reduce long-term risks, focus on the following measures:

Maintain excellent blood pressure control and follow a healthy lifestyle.
Attend regular follow-up appointments with your nephrologist.
Discuss the potential use of Tolvaptan if imaging suggests a higher risk of rapid decline in kidney function.

I hope this information helps you.

Thank you.