Comparison Study for Hemodynamic Parameters Generated by Vitalstream Relative to Appropriate Gold Standard References in Different Clinical Settings, (OR, EP Lab Etc.).

The goal of the proposed study is to test the capability of the Vitalstream monitor's continuous blood pressure tracking ability against Gold Standard.

Inclusion Criteria: Patients 18 years of age or older having the following surgery or procedures Electrophysiology Lab patients undergoing ablation Cardiac Catheterization Lab patients undergoing heart catheterization Cardiac Surgery patients including CABG and/or cardiac valve repair/replacement Abdominal Surgery patients including hepatectomy, pancreatectomy, and gastrectomy Exclusion Criteria: Patients less than 18 years of age Patients with any pre-existing finger or hand injury which will preclude the placement of the Caretaker finger blood pressure cuff