Blood Pressure Seasonality in Hemodialysis Patients from Five European Cities of Different Latitudes.

Background/aims: Climate influences the regulation of blood pressure (BP). Our objective was to precisely estimate BP seasonality in hemodialysis (HD) patients from five European cities with marked climate differences.

Methods: Stable prevalent HD patients from 5 European facilities (Santa Cruz de Tenerife (Spain), Seville (Spain), Montpellier (France), Ottignies (Belgium), Umea (Sweden)) present over the years 1995-1999 were included in this historical longitudinal observational study.

Enteric hyperoxaluria: a hidden cause of early renal graft failure in two successive transplants: spontaneous late graft recovery.

A 37-year-old patient underwent two successive renal transplantations 7 months apart. He remained dialysis dependent. Early biopsy of both grafts revealed widespread calcium oxalate deposition suggestive of acute oxalate nephropathy.