Renal replacement therapy in ADPKD patients: a 25-year survey based on the Catalan registry
1 Nephrology Department, Hospital Reina Sofia, Murcia, Spain
2 Catalan Renal Registry, Catalan Transplant Organization, Health Department, Generalitat of Catalonia, Barcelona, Spain
3 Nephrology Department, Fundacio Puigvert, IIB Sant Pau, Univeristat Autónoma de Barcelona, Barcelona, Spain
4 Molecular Biology Laboratory, Fundacio Puigvert, IIB Sant Pau, Univeristat Autónoma de Barcelona, Barcelona, Spain
5 Inherited Renal Diseases, Nephrology Department, Fundacio Puigvert, IIB Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain
BMC Nephrology 2013, 14:186 doi:10.1186/1471-2369-14-186Published: 5 September 2013
Some 7-10% of patients on replacement renal therapy (RRT) are receiving it because of autosomal dominant polycystic kidney disease (ADPKD). The age at initiation of RRT is expected to increase over time.
Clinical data of 1,586 patients (7.9%) with ADPKD and 18,447 (92.1%) patients with other nephropathies were analysed from 1984 through 2009 (1984–1991, 1992–1999 and 2000–2009).
The age at initiation of RRT remained stable over the three periods in the ADPKD group (56.7 ± 10.9 (mean ± SD) vs 57.5 ± 12.1 vs 57.8 ± 13.3 years), whereas it increased significantly in the non-ADPKD group (from 54.8 ± 16.8 to 63.9 ± 16.3 years, p < 0.001). The ratio of males to females was higher for non-ADPKD than for ADPKD patients (1.6–1.8 vs 1.1–1.2). The prevalence of diabetes was significantly lower in the ADPKD group (6.76% vs 11.89%, p < 0.001), as were most of the co-morbidities studied, with the exception of hypertension. The survival rate of the ADPKD patients on RRT was higher than that of the non-ADPKD patients (p < 0.001).
Over time neither changes in age nor alterations in male to female ratio have occurred among ADPKD patients who have started RRT, probably because of the impact of unmodifiable genetic factors in the absence of a specific treatment.