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Changing Referral Characteristics of Patients with Autosomal Dominant Polycystic Kidney Disease

      Abstract

      Objective

      Autosomal dominant polycystic kidney disease is the most frequent life-threatening hereditary disease. The study objective was to assess whether the clinical characteristics of patients with autosomal dominant polycystic kidney disease who are referred to a major autosomal dominant polycystic kidney disease center have changed over time.

      Methods

      The clinical characteristics of patients with autosomal dominant polycystic kidney disease were compared between period A (1961-1990) and period B (1991-2011). The study took place at the Autosomal Dominant Polycystic Kidney Disease Center at the University of Colorado. A total of 837 patients referred with autosomal dominant polycystic kidney disease were included. Blood pressure control and renin-angiotensin-aldosterone system inhibition were instituted. Renal function, blood pressure, end-stage renal disease, and mortality were analyzed.

      Results

      The results in period B compared with period A demonstrated an earlier age of autosomal dominant polycystic kidney disease diagnosis (29 vs 35 years, P < .001), lower mean blood pressure (129/82 vs 142/91 mm Hg, P < .001), better estimated glomerular filtration rate (63.6 vs 44.6 mL/min, P < .001), and more therapy with angiotensin-converting enzyme inhibition (42.5% vs 13.6%, P < .001). Time from birth to end-stage renal disease (52.8 ± 0.6 vs 49.1 ± 0.6 years, P < .001) and birth to death (63.5 ± 1.5 years vs 57.2 ± 1.0 years, P < .001) was longer in period B compared with period A when adjusted for age at diagnosis, sex, and estimated glomerular filtration rate. The study was retrospective, which is a limitation.

      Conclusions

      In period B, there was significantly better blood pressure control, more renin-angiotensin-aldosterone system inhibition, better preservation of renal function, and a longer period from birth to end-stage renal disease and death.

      Keywords

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