Perfusion Index in Anesthesia

Peripheral Perfusion Index as Marker for Systemic Hemodynamics During Anesthesia

In patients under general anesthesia the investigators wish to investigate association and covariance between a peripheral perfusion index as obtained by Radical 7 monitor (Masimo, Irvine, CA, USA) and more traditional hemodynamic parameters, ie. invasive blood pressure and SV as obtained by LiDCO rapid monitor (LiDCO Ldt., London, UK)

Inclusion Criteria:

• Patients for elective and sub-acute surgical repair of para-oesophagal hernia.
• Willingness to participate

Exclusion Criteria:

• Patient refusal