Internal Jugular Vein Distensibility to Predict Fluid Responsiveness in Patients After Cardiac Surgery

The purpose of the study was to verify the efficacy of using internal jugular vein (IJV) size and distensibility as an index of fluid responsiveness in mechanically ventilated patients after cardiac surgery.

Inclusion Criteria:

• hypotension
• oliguria
• high lactate level

Exclusion Criteria:

• cardiac arrhythmia
• clinically relevant tricuspid or mitral regurgitation, clinically relevant right heart failure
• thrombosis in any large upper body veins
• bilaterally inserted venous catheters