Influence Continuous Veno-venous Hemodialysis the Autoregulation

Influence of Continuous Veno-venous Hemodialysis on Cerebrovascular Autoregulation in Patients With Acute Renal Failure

The aim of the study is to characterize the influence of continuous veno-venous hemodialysis on the cerebrovascular autoregulation.

Patients at the intensive care unit who suffered acute renal failure with the need of continuous veno-venous hemodialysis will be investigated with continuous veno-venous hemodialysis and in a time window without continuous veno-venous hemodialysis to investigate the influence of continuous veno-venous hemodialysis on the cerebrovascular autoregulation.

Inclusion Criteria:

• acute renal failure
• need for continuous veno-venous hemodialysis
• age >18 Years

Exclusion Criteria:

• Sepsis
• Preexisting cerebral illness
• traumatic brain injury
• Meningitis or encephalitis
• Pregnancy