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Uremic acquired renal cystic disease. Natural history and complications
Insights
Males develop more severe acquired cystic kidney disease than females during long-term dialysis. While dialysis type doesn't impact severity, transplantation can reduce cystic changes. Uremia is a key factor in disease development.
Area of Science:
- Nephrology
- Urology
- Oncology
Background:
- Acquired cystic kidney disease (ACKD) is common in patients undergoing long-term dialysis.
- Males tend to exhibit more severe ACKD compared to females.
- The primary pathological feature of ACKD is epithelial hyperplasia, influenced by uremia and its duration.
Discussion:
- Therapeutic modality (hemodialysis vs. CAPD) does not affect ACKD severity.
- Successful renal transplantation can lead to reduced cystic transformation.
- Epithelial hyperplasia is the hallmark pathological change in ACKD.
Key Insights:
- Renal cell carcinoma (RCC) is a significant complication of ACKD, often asymptomatic with potential for metastasis.
- The prevalence and incidence of RCC in ACKD patients are high.
- Screening for RCC in dialysis patients is widely, though not universally, recommended.
Outlook:
- ACKD-associated complications, particularly malignancy and retroperitoneal bleeding, pose increasing challenges.
- The rising number of patients on long-term dialysis underscores the growing importance of managing ACKD and its sequelae.
- Regular screening for renal cell carcinoma in dialysis patients is a critical consideration for early detection and management.
Abstract:
Males on long-term dialysis tend to develop more severe forms of acquired cystic disease of the kidney than females. The severity of the disease is unaffected by therapeutic modality, either hemodialysis or CAPD, however, cystic transformation becomes less extensive after successful renal transplantation. The fundamental pathological change characteristic of acquired cystic disease is epithelial hyperplasia, with the uremic milieu and duration of uremia being the most important factors in its development. Renal cell carcinoma, the most important complication of acquired renal cystic disease, has a high prevalence and incidence, usually remains symptomless and sometimes reveals metastases. Therefore, many clinicians and investigators, but not all, accept the need for regular screening of all dialysis patients for the development of renal cell carcinoma. Major complications of acquired renal cystic disease, malignancy and retroperitoneal bleeding, will become increasingly important because of the growing number of patients on long-term dialysis.
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